Merge pull request #3031 from baude/remotewindows

enable podman-remote on windows

14 files changed, 2218 insertions, 2099 deletions

diff --git a/vendor/github.com/containers/buildah/buildah.go b/vendor/github.com/containers/buildah/buildah.go
index b6e6545ec..e29e69383 100644
--- a/vendor/github.com/containers/buildah/buildah.go
+++ b/vendor/github.com/containers/buildah/buildah.go
@@ -26,7 +26,7 @@ const (
 	Package = "buildah"
 	// Version for the Package.  Bump version in contrib/rpm/buildah.spec
 	// too.
-	Version = "1.8.0"
+	Version = "1.9.0-dev"
 	// The value we use to identify what type of information, currently a
 	// serialized Builder structure, we are using as per-container state.
 	// This should only be changed when we make incompatible changes to
diff --git a/vendor/github.com/containers/buildah/imagebuildah/chroot_symlink.go b/vendor/github.com/containers/buildah/imagebuildah/chroot_symlink_linux.go
index 0789c2b3c..e9d745b67 100644
--- a/vendor/github.com/containers/buildah/imagebuildah/chroot_symlink.go
+++ b/vendor/github.com/containers/buildah/imagebuildah/chroot_symlink_linux.go
@@ -24,6 +24,22 @@ func init() {
 	reexec.Register(symlinkModifiedTime, resolveSymlinkTimeModified)
 }
 
+// resolveSymlink uses a child subprocess to resolve any symlinks in filename
+// in the context of rootdir.
+func resolveSymlink(rootdir, filename string) (string, error) {
+	// The child process expects a chroot and one path that
+	// will be consulted relative to the chroot directory and evaluated
+	// for any symbolic links present.
+	cmd := reexec.Command(symlinkChrootedCommand, rootdir, filename)
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		return "", errors.Wrapf(err, string(output))
+	}
+
+	// Hand back the resolved symlink, will be filename if a symlink is not found
+	return string(output), nil
+}
+
 // main() for resolveSymlink()'s subprocess.
 func resolveChrootedSymlinks() {
 	status := 0
@@ -55,22 +71,6 @@ func resolveChrootedSymlinks() {
 	os.Exit(status)
 }
 
-// resolveSymlink uses a child subprocess to resolve any symlinks in filename
-// in the context of rootdir.
-func resolveSymlink(rootdir, filename string) (string, error) {
-	// The child process expects a chroot and one path that
-	// will be consulted relative to the chroot directory and evaluated
-	// for any symbolic links present.
-	cmd := reexec.Command(symlinkChrootedCommand, rootdir, filename)
-	output, err := cmd.CombinedOutput()
-	if err != nil {
-		return "", errors.Wrapf(err, string(output))
-	}
-
-	// Hand back the resolved symlink, will be filename if a symlink is not found
-	return string(output), nil
-}
-
 // main() for grandparent subprocess.  Its main job is to shuttle stdio back
 // and forth, managing a pseudo-terminal if we want one, for our child, the
 // parent subprocess.
diff --git a/vendor/github.com/containers/buildah/imagebuildah/chroot_symlink_unsupported.go b/vendor/github.com/containers/buildah/imagebuildah/chroot_symlink_unsupported.go
new file mode 100644
index 000000000..2cec4fe21
--- /dev/null
+++ b/vendor/github.com/containers/buildah/imagebuildah/chroot_symlink_unsupported.go
@@ -0,0 +1,13 @@
+// +build !linux
+
+package imagebuildah
+
+import "github.com/pkg/errors"
+
+func resolveSymlink(rootdir, filename string) (string, error) {
+	return "", errors.New("function not supported on non-linux systems")
+}
+
+func resolveModifiedTime(rootdir, filename, historyTime string) (bool, error) {
+	return false, errors.New("function not supported on non-linux systems")
+}
diff --git a/vendor/github.com/containers/buildah/pkg/parse/parse.go b/vendor/github.com/containers/buildah/pkg/parse/parse.go
index cc85136fd..bec41f3ae 100644
--- a/vendor/github.com/containers/buildah/pkg/parse/parse.go
+++ b/vendor/github.com/containers/buildah/pkg/parse/parse.go
@@ -22,7 +22,6 @@ import (
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 	"golang.org/x/crypto/ssh/terminal"
-	"golang.org/x/sys/unix"
 )
 
 const (
@@ -39,14 +38,9 @@ func CommonBuildOptions(c *cobra.Command) (*buildah.CommonBuildOptions, error) {
 		memorySwap  int64
 		err         error
 	)
-	rlim := unix.Rlimit{Cur: 1048576, Max: 1048576}
-	defaultLimits := []string{}
-	if err := unix.Setrlimit(unix.RLIMIT_NOFILE, &rlim); err == nil {
-		defaultLimits = append(defaultLimits, fmt.Sprintf("nofile=%d:%d", rlim.Cur, rlim.Max))
-	}
-	if err := unix.Setrlimit(unix.RLIMIT_NPROC, &rlim); err == nil {
-		defaultLimits = append(defaultLimits, fmt.Sprintf("nproc=%d:%d", rlim.Cur, rlim.Max))
-	}
+
+	defaultLimits := getDefaultProcessLimits()
+
 	memVal, _ := c.Flags().GetString("memory")
 	if memVal != "" {
 		memoryLimit, err = units.RAMInBytes(memVal)
diff --git a/vendor/github.com/containers/buildah/pkg/parse/parse_unix.go b/vendor/github.com/containers/buildah/pkg/parse/parse_unix.go
new file mode 100644
index 000000000..d056c1bb3
--- /dev/null
+++ b/vendor/github.com/containers/buildah/pkg/parse/parse_unix.go
@@ -0,0 +1,20 @@
+// +build linux darwin
+
+package parse
+
+import (
+	"fmt"
+	"golang.org/x/sys/unix"
+)
+
+func getDefaultProcessLimits() []string {
+	rlim := unix.Rlimit{Cur: 1048576, Max: 1048576}
+	defaultLimits := []string{}
+	if err := unix.Setrlimit(unix.RLIMIT_NOFILE, &rlim); err == nil {
+		defaultLimits = append(defaultLimits, fmt.Sprintf("nofile=%d:%d", rlim.Cur, rlim.Max))
+	}
+	if err := unix.Setrlimit(unix.RLIMIT_NPROC, &rlim); err == nil {
+		defaultLimits = append(defaultLimits, fmt.Sprintf("nproc=%d:%d", rlim.Cur, rlim.Max))
+	}
+	return defaultLimits
+}
diff --git a/vendor/github.com/containers/buildah/pkg/parse/parse_unsupported.go b/vendor/github.com/containers/buildah/pkg/parse/parse_unsupported.go
new file mode 100644
index 000000000..7e970624f
--- /dev/null
+++ b/vendor/github.com/containers/buildah/pkg/parse/parse_unsupported.go
@@ -0,0 +1,7 @@
+// +build !linux,!darwin
+
+package parse
+
+func getDefaultProcessLimits() []string {
+	return []string{}
+}
diff --git a/vendor/github.com/containers/buildah/run.go b/vendor/github.com/containers/buildah/run.go
index 00eac8e39..88900b6b7 100644
--- a/vendor/github.com/containers/buildah/run.go
+++ b/vendor/github.com/containers/buildah/run.go
@@ -1,44 +1,10 @@
 package buildah
 
 import (
-	"bytes"
-	"context"
-	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
-	"net"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"runtime"
-	"strconv"
-	"strings"
-	"sync"
-	"syscall"
-	"time"
 
-	"github.com/containernetworking/cni/libcni"
-	"github.com/containers/buildah/bind"
-	"github.com/containers/buildah/chroot"
-	"github.com/containers/buildah/pkg/secrets"
-	"github.com/containers/buildah/pkg/unshare"
-	"github.com/containers/buildah/util"
-	"github.com/containers/storage/pkg/idtools"
-	"github.com/containers/storage/pkg/ioutils"
-	"github.com/containers/storage/pkg/reexec"
-	"github.com/containers/storage/pkg/stringid"
-	units "github.com/docker/go-units"
-	"github.com/docker/libnetwork/resolvconf"
-	"github.com/docker/libnetwork/types"
-	digest "github.com/opencontainers/go-digest"
-	specs "github.com/opencontainers/runtime-spec/specs-go"
-	"github.com/opencontainers/runtime-tools/generate"
-	"github.com/opencontainers/selinux/go-selinux/label"
-	"github.com/pkg/errors"
-	"github.com/sirupsen/logrus"
-	"golang.org/x/crypto/ssh/terminal"
-	"golang.org/x/sys/unix"
+	"github.com/opencontainers/runtime-spec/specs-go"
 )
 
 const (
@@ -203,34 +169,6 @@ type RunOptions struct {
 	DropCapabilities []string
 }
 
-// DefaultNamespaceOptions returns the default namespace settings from the
-// runtime-tools generator library.
-func DefaultNamespaceOptions() (NamespaceOptions, error) {
-	options := NamespaceOptions{
-		{Name: string(specs.CgroupNamespace), Host: true},
-		{Name: string(specs.IPCNamespace), Host: true},
-		{Name: string(specs.MountNamespace), Host: true},
-		{Name: string(specs.NetworkNamespace), Host: true},
-		{Name: string(specs.PIDNamespace), Host: true},
-		{Name: string(specs.UserNamespace), Host: true},
-		{Name: string(specs.UTSNamespace), Host: true},
-	}
-	g, err := generate.New("linux")
-	if err != nil {
-		return options, errors.Wrapf(err, "error generating new 'linux' runtime spec")
-	}
-	spec := g.Config
-	if spec.Linux != nil {
-		for _, ns := range spec.Linux.Namespaces {
-			options.AddOrReplace(NamespaceOption{
-				Name: string(ns.Type),
-				Path: ns.Path,
-			})
-		}
-	}
-	return options, nil
-}
-
 // Find the configuration for the namespace of the given type.  If there are
 // duplicates, find the _last_ one of the type, since we assume it was appended
 // more recently.
@@ -258,1959 +196,3 @@ nextOption:
 		*n = append(*n, option)
 	}
 }
-
-func addRlimits(ulimit []string, g *generate.Generator) error {
-	var (
-		ul  *units.Ulimit
-		err error
-	)
-
-	for _, u := range ulimit {
-		if ul, err = units.ParseUlimit(u); err != nil {
-			return errors.Wrapf(err, "ulimit option %q requires name=SOFT:HARD, failed to be parsed", u)
-		}
-
-		g.AddProcessRlimits("RLIMIT_"+strings.ToUpper(ul.Name), uint64(ul.Hard), uint64(ul.Soft))
-	}
-	return nil
-}
-
-func addCommonOptsToSpec(commonOpts *CommonBuildOptions, g *generate.Generator) error {
-	// Resources - CPU
-	if commonOpts.CPUPeriod != 0 {
-		g.SetLinuxResourcesCPUPeriod(commonOpts.CPUPeriod)
-	}
-	if commonOpts.CPUQuota != 0 {
-		g.SetLinuxResourcesCPUQuota(commonOpts.CPUQuota)
-	}
-	if commonOpts.CPUShares != 0 {
-		g.SetLinuxResourcesCPUShares(commonOpts.CPUShares)
-	}
-	if commonOpts.CPUSetCPUs != "" {
-		g.SetLinuxResourcesCPUCpus(commonOpts.CPUSetCPUs)
-	}
-	if commonOpts.CPUSetMems != "" {
-		g.SetLinuxResourcesCPUMems(commonOpts.CPUSetMems)
-	}
-
-	// Resources - Memory
-	if commonOpts.Memory != 0 {
-		g.SetLinuxResourcesMemoryLimit(commonOpts.Memory)
-	}
-	if commonOpts.MemorySwap != 0 {
-		g.SetLinuxResourcesMemorySwap(commonOpts.MemorySwap)
-	}
-
-	// cgroup membership
-	if commonOpts.CgroupParent != "" {
-		g.SetLinuxCgroupsPath(commonOpts.CgroupParent)
-	}
-
-	// Other process resource limits
-	if err := addRlimits(commonOpts.Ulimit, g); err != nil {
-		return err
-	}
-
-	logrus.Debugf("Resources: %#v", commonOpts)
-	return nil
-}
-
-func (b *Builder) setupMounts(mountPoint string, spec *specs.Spec, bundlePath string, optionMounts []specs.Mount, bindFiles map[string]string, builtinVolumes, volumeMounts []string, shmSize string, namespaceOptions NamespaceOptions) error {
-	// Start building a new list of mounts.
-	var mounts []specs.Mount
-	haveMount := func(destination string) bool {
-		for _, mount := range mounts {
-			if mount.Destination == destination {
-				// Already have something to mount there.
-				return true
-			}
-		}
-		return false
-	}
-
-	ipc := namespaceOptions.Find(string(specs.IPCNamespace))
-	hostIPC := ipc == nil || ipc.Host
-	net := namespaceOptions.Find(string(specs.NetworkNamespace))
-	hostNetwork := net == nil || net.Host
-	user := namespaceOptions.Find(string(specs.UserNamespace))
-	hostUser := user == nil || user.Host
-
-	// Copy mounts from the generated list.
-	mountCgroups := true
-	specMounts := []specs.Mount{}
-	for _, specMount := range spec.Mounts {
-		// Override some of the mounts from the generated list if we're doing different things with namespaces.
-		if specMount.Destination == "/dev/shm" {
-			specMount.Options = []string{"nosuid", "noexec", "nodev", "mode=1777", "size=" + shmSize}
-			if hostIPC && !hostUser {
-				if _, err := os.Stat("/dev/shm"); err != nil && os.IsNotExist(err) {
-					logrus.Debugf("/dev/shm is not present, not binding into container")
-					continue
-				}
-				specMount = specs.Mount{
-					Source:      "/dev/shm",
-					Type:        "bind",
-					Destination: "/dev/shm",
-					Options:     []string{bind.NoBindOption, "rbind", "nosuid", "noexec", "nodev"},
-				}
-			}
-		}
-		if specMount.Destination == "/dev/mqueue" {
-			if hostIPC && !hostUser {
-				if _, err := os.Stat("/dev/mqueue"); err != nil && os.IsNotExist(err) {
-					logrus.Debugf("/dev/mqueue is not present, not binding into container")
-					continue
-				}
-				specMount = specs.Mount{
-					Source:      "/dev/mqueue",
-					Type:        "bind",
-					Destination: "/dev/mqueue",
-					Options:     []string{bind.NoBindOption, "rbind", "nosuid", "noexec", "nodev"},
-				}
-			}
-		}
-		if specMount.Destination == "/sys" {
-			if hostNetwork && !hostUser {
-				mountCgroups = false
-				if _, err := os.Stat("/sys"); err != nil && os.IsNotExist(err) {
-					logrus.Debugf("/sys is not present, not binding into container")
-					continue
-				}
-				specMount = specs.Mount{
-					Source:      "/sys",
-					Type:        "bind",
-					Destination: "/sys",
-					Options:     []string{bind.NoBindOption, "rbind", "nosuid", "noexec", "nodev", "ro"},
-				}
-			}
-		}
-		specMounts = append(specMounts, specMount)
-	}
-
-	// Add a mount for the cgroups filesystem, unless we're already
-	// recursively bind mounting all of /sys, in which case we shouldn't
-	// bother with it.
-	sysfsMount := []specs.Mount{}
-	if mountCgroups {
-		sysfsMount = []specs.Mount{{
-			Destination: "/sys/fs/cgroup",
-			Type:        "cgroup",
-			Source:      "cgroup",
-			Options:     []string{bind.NoBindOption, "nosuid", "noexec", "nodev", "relatime", "ro"},
-		}}
-	}
-
-	// Get the list of files we need to bind into the container.
-	bindFileMounts, err := runSetupBoundFiles(bundlePath, bindFiles)
-	if err != nil {
-		return err
-	}
-
-	// After this point we need to know the per-container persistent storage directory.
-	cdir, err := b.store.ContainerDirectory(b.ContainerID)
-	if err != nil {
-		return errors.Wrapf(err, "error determining work directory for container %q", b.ContainerID)
-	}
-
-	// Figure out which UID and GID to tell the secrets package to use
-	// for files that it creates.
-	rootUID, rootGID, err := util.GetHostRootIDs(spec)
-	if err != nil {
-		return err
-	}
-
-	// Get the list of secrets mounts.
-	secretMounts := secrets.SecretMountsWithUIDGID(b.MountLabel, cdir, b.DefaultMountsFilePath, cdir, int(rootUID), int(rootGID), unshare.IsRootless())
-
-	// Add temporary copies of the contents of volume locations at the
-	// volume locations, unless we already have something there.
-	copyWithTar := b.copyWithTar(nil, nil)
-	builtins, err := runSetupBuiltinVolumes(b.MountLabel, mountPoint, cdir, copyWithTar, builtinVolumes, int(rootUID), int(rootGID))
-	if err != nil {
-		return err
-	}
-
-	// Get the list of explicitly-specified volume mounts.
-	volumes, err := runSetupVolumeMounts(spec.Linux.MountLabel, volumeMounts, optionMounts)
-	if err != nil {
-		return err
-	}
-
-	// Add them all, in the preferred order, except where they conflict with something that was previously added.
-	for _, mount := range append(append(append(append(append(volumes, builtins...), secretMounts...), bindFileMounts...), specMounts...), sysfsMount...) {
-		if haveMount(mount.Destination) {
-			// Already mounting something there, no need to bother with this one.
-			continue
-		}
-		// Add the mount.
-		mounts = append(mounts, mount)
-	}
-
-	// Set the list in the spec.
-	spec.Mounts = mounts
-	return nil
-}
-
-func runSetupBoundFiles(bundlePath string, bindFiles map[string]string) (mounts []specs.Mount, err error) {
-	for dest, src := range bindFiles {
-		options := []string{"rbind"}
-		if strings.HasPrefix(src, bundlePath) {
-			options = append(options, bind.NoBindOption)
-		}
-		mounts = append(mounts, specs.Mount{
-			Source:      src,
-			Destination: dest,
-			Type:        "bind",
-			Options:     options,
-		})
-	}
-	return mounts, nil
-}
-
-func runSetupBuiltinVolumes(mountLabel, mountPoint, containerDir string, copyWithTar func(srcPath, dstPath string) error, builtinVolumes []string, rootUID, rootGID int) ([]specs.Mount, error) {
-	var mounts []specs.Mount
-	hostOwner := idtools.IDPair{UID: rootUID, GID: rootGID}
-	// Add temporary copies of the contents of volume locations at the
-	// volume locations, unless we already have something there.
-	for _, volume := range builtinVolumes {
-		subdir := digest.Canonical.FromString(volume).Hex()
-		volumePath := filepath.Join(containerDir, "buildah-volumes", subdir)
-		srcPath := filepath.Join(mountPoint, volume)
-		initializeVolume := false
-		// If we need to, initialize the volume path's initial contents.
-		if _, err := os.Stat(volumePath); err != nil {
-			if !os.IsNotExist(err) {
-				return nil, errors.Wrapf(err, "failed to stat %q for volume %q", volumePath, volume)
-			}
-			logrus.Debugf("setting up built-in volume at %q", volumePath)
-			if err = os.MkdirAll(volumePath, 0755); err != nil {
-				return nil, errors.Wrapf(err, "error creating directory %q for volume %q", volumePath, volume)
-			}
-			if err = label.Relabel(volumePath, mountLabel, false); err != nil {
-				return nil, errors.Wrapf(err, "error relabeling directory %q for volume %q", volumePath, volume)
-			}
-			initializeVolume = true
-		}
-		stat, err := os.Stat(srcPath)
-		if err != nil {
-			if !os.IsNotExist(err) {
-				return nil, errors.Wrapf(err, "failed to stat %q for volume %q", srcPath, volume)
-			}
-			if err = idtools.MkdirAllAndChownNew(srcPath, 0755, hostOwner); err != nil {
-				return nil, errors.Wrapf(err, "error creating directory %q for volume %q", srcPath, volume)
-			}
-			if stat, err = os.Stat(srcPath); err != nil {
-				return nil, errors.Wrapf(err, "failed to stat %q for volume %q", srcPath, volume)
-			}
-		}
-		if initializeVolume {
-			if err = os.Chmod(volumePath, stat.Mode().Perm()); err != nil {
-				return nil, errors.Wrapf(err, "failed to chmod %q for volume %q", volumePath, volume)
-			}
-			if err = os.Chown(volumePath, int(stat.Sys().(*syscall.Stat_t).Uid), int(stat.Sys().(*syscall.Stat_t).Gid)); err != nil {
-				return nil, errors.Wrapf(err, "error chowning directory %q for volume %q", volumePath, volume)
-			}
-			if err = copyWithTar(srcPath, volumePath); err != nil && !os.IsNotExist(errors.Cause(err)) {
-				return nil, errors.Wrapf(err, "error populating directory %q for volume %q using contents of %q", volumePath, volume, srcPath)
-			}
-		}
-		// Add the bind mount.
-		mounts = append(mounts, specs.Mount{
-			Source:      volumePath,
-			Destination: volume,
-			Type:        "bind",
-			Options:     []string{"bind"},
-		})
-	}
-	return mounts, nil
-}
-
-func runSetupVolumeMounts(mountLabel string, volumeMounts []string, optionMounts []specs.Mount) ([]specs.Mount, error) {
-	var mounts []specs.Mount
-
-	parseMount := func(host, container string, options []string) (specs.Mount, error) {
-		var foundrw, foundro, foundz, foundZ bool
-		var rootProp string
-		for _, opt := range options {
-			switch opt {
-			case "rw":
-				foundrw = true
-			case "ro":
-				foundro = true
-			case "z":
-				foundz = true
-			case "Z":
-				foundZ = true
-			case "private", "rprivate", "slave", "rslave", "shared", "rshared":
-				rootProp = opt
-			}
-		}
-		if !foundrw && !foundro {
-			options = append(options, "rw")
-		}
-		if foundz {
-			if err := label.Relabel(host, mountLabel, true); err != nil {
-				return specs.Mount{}, errors.Wrapf(err, "relabeling %q failed", host)
-			}
-		}
-		if foundZ {
-			if err := label.Relabel(host, mountLabel, false); err != nil {
-				return specs.Mount{}, errors.Wrapf(err, "relabeling %q failed", host)
-			}
-		}
-		if rootProp == "" {
-			options = append(options, "private")
-		}
-		return specs.Mount{
-			Destination: container,
-			Type:        "bind",
-			Source:      host,
-			Options:     options,
-		}, nil
-	}
-	// Bind mount volumes specified for this particular Run() invocation
-	for _, i := range optionMounts {
-		logrus.Debugf("setting up mounted volume at %q", i.Destination)
-		mount, err := parseMount(i.Source, i.Destination, append(i.Options, "rbind"))
-		if err != nil {
-			return nil, err
-		}
-		mounts = append(mounts, mount)
-	}
-	// Bind mount volumes given by the user when the container was created
-	for _, i := range volumeMounts {
-		var options []string
-		spliti := strings.Split(i, ":")
-		if len(spliti) > 2 {
-			options = strings.Split(spliti[2], ",")
-		}
-		options = append(options, "rbind")
-		mount, err := parseMount(spliti[0], spliti[1], options)
-		if err != nil {
-			return nil, err
-		}
-		mounts = append(mounts, mount)
-	}
-	return mounts, nil
-}
-
-// addNetworkConfig copies files from host and sets them up to bind mount into container
-func (b *Builder) addNetworkConfig(rdir, hostPath string, chownOpts *idtools.IDPair, dnsServers, dnsSearch, dnsOptions []string) (string, error) {
-	stat, err := os.Stat(hostPath)
-	if err != nil {
-		return "", errors.Wrapf(err, "error statting %q for container %q", hostPath, b.ContainerID)
-	}
-	contents, err := ioutil.ReadFile(hostPath)
-	if err != nil {
-		return "", errors.Wrapf(err, "unable to read %s", hostPath)
-	}
-
-	search := resolvconf.GetSearchDomains(contents)
-	nameservers := resolvconf.GetNameservers(contents, types.IP)
-	options := resolvconf.GetOptions(contents)
-
-	if len(dnsSearch) > 0 {
-		search = dnsSearch
-	}
-	if len(dnsServers) != 0 {
-		dns, err := getDNSIP(dnsServers)
-		if err != nil {
-			return "", errors.Wrapf(err, "error getting dns servers")
-		}
-		nameservers = []string{}
-		for _, server := range dns {
-			nameservers = append(nameservers, server.String())
-		}
-	}
-
-	if len(dnsOptions) != 0 {
-		options = dnsOptions
-	}
-
-	cfile := filepath.Join(rdir, filepath.Base(hostPath))
-	if _, err = resolvconf.Build(cfile, nameservers, search, options); err != nil {
-		return "", errors.Wrapf(err, "error building resolv.conf for container %s", b.ContainerID)
-	}
-
-	uid := int(stat.Sys().(*syscall.Stat_t).Uid)
-	gid := int(stat.Sys().(*syscall.Stat_t).Gid)
-	if chownOpts != nil {
-		uid = chownOpts.UID
-		gid = chownOpts.GID
-	}
-	if err = os.Chown(cfile, uid, gid); err != nil {
-		return "", errors.Wrapf(err, "error chowning file %q for container %q", cfile, b.ContainerID)
-	}
-
-	if err := label.Relabel(cfile, b.MountLabel, false); err != nil {
-		return "", errors.Wrapf(err, "error relabeling %q in container %q", cfile, b.ContainerID)
-	}
-
-	return cfile, nil
-}
-
-func getDNSIP(dnsServers []string) (dns []net.IP, err error) {
-	for _, i := range dnsServers {
-		result := net.ParseIP(i)
-		if result == nil {
-			return dns, errors.Errorf("invalid IP address %s", i)
-		}
-		dns = append(dns, result)
-	}
-	return dns, nil
-}
-
-// generateHosts creates a containers hosts file
-func (b *Builder) generateHosts(rdir, hostname string, addHosts []string, chownOpts *idtools.IDPair) (string, error) {
-	hostPath := "/etc/hosts"
-	stat, err := os.Stat(hostPath)
-	if err != nil {
-		return "", errors.Wrapf(err, "error statting %q for container %q", hostPath, b.ContainerID)
-	}
-
-	hosts := bytes.NewBufferString("# Generated by Buildah\n")
-	orig, err := ioutil.ReadFile(hostPath)
-	if err != nil {
-		return "", errors.Wrapf(err, "unable to read %s", hostPath)
-	}
-	hosts.Write(orig)
-	for _, host := range addHosts {
-		// verify the host format
-		values := strings.SplitN(host, ":", 2)
-		if len(values) != 2 {
-			return "", errors.Errorf("unable to parse host entry %q: incorrect format", host)
-		}
-		if values[0] == "" {
-			return "", errors.Errorf("hostname in host entry %q is empty", host)
-		}
-		if values[1] == "" {
-			return "", errors.Errorf("IP address in host entry %q is empty", host)
-		}
-		hosts.Write([]byte(fmt.Sprintf("%s\t%s\n", values[1], values[0])))
-	}
-
-	if hostname != "" {
-		hosts.Write([]byte(fmt.Sprintf("127.0.0.1   %s\n", hostname)))
-		hosts.Write([]byte(fmt.Sprintf("::1         %s\n", hostname)))
-	}
-	cfile := filepath.Join(rdir, filepath.Base(hostPath))
-	if err = ioutils.AtomicWriteFile(cfile, hosts.Bytes(), stat.Mode().Perm()); err != nil {
-		return "", errors.Wrapf(err, "error writing /etc/hosts into the container")
-	}
-	uid := int(stat.Sys().(*syscall.Stat_t).Uid)
-	gid := int(stat.Sys().(*syscall.Stat_t).Gid)
-	if chownOpts != nil {
-		uid = chownOpts.UID
-		gid = chownOpts.GID
-	}
-	if err = os.Chown(cfile, uid, gid); err != nil {
-		return "", errors.Wrapf(err, "error chowning file %q for container %q", cfile, b.ContainerID)
-	}
-	if err := label.Relabel(cfile, b.MountLabel, false); err != nil {
-		return "", errors.Wrapf(err, "error relabeling %q in container %q", cfile, b.ContainerID)
-	}
-
-	return cfile, nil
-}
-
-func setupMaskedPaths(g *generate.Generator) {
-	for _, mp := range []string{
-		"/proc/acpi",
-		"/proc/kcore",
-		"/proc/keys",
-		"/proc/latency_stats",
-		"/proc/timer_list",
-		"/proc/timer_stats",
-		"/proc/sched_debug",
-		"/proc/scsi",
-		"/sys/firmware",
-	} {
-		g.AddLinuxMaskedPaths(mp)
-	}
-}
-
-func setupReadOnlyPaths(g *generate.Generator) {
-	for _, rp := range []string{
-		"/proc/asound",
-		"/proc/bus",
-		"/proc/fs",
-		"/proc/irq",
-		"/proc/sys",
-		"/proc/sysrq-trigger",
-	} {
-		g.AddLinuxReadonlyPaths(rp)
-	}
-}
-
-func setupCapAdd(g *generate.Generator, caps ...string) error {
-	for _, cap := range caps {
-		if err := g.AddProcessCapabilityBounding(cap); err != nil {
-			return errors.Wrapf(err, "error adding %q to the bounding capability set", cap)
-		}
-		if err := g.AddProcessCapabilityEffective(cap); err != nil {
-			return errors.Wrapf(err, "error adding %q to the effective capability set", cap)
-		}
-		if err := g.AddProcessCapabilityInheritable(cap); err != nil {
-			return errors.Wrapf(err, "error adding %q to the inheritable capability set", cap)
-		}
-		if err := g.AddProcessCapabilityPermitted(cap); err != nil {
-			return errors.Wrapf(err, "error adding %q to the permitted capability set", cap)
-		}
-		if err := g.AddProcessCapabilityAmbient(cap); err != nil {
-			return errors.Wrapf(err, "error adding %q to the ambient capability set", cap)
-		}
-	}
-	return nil
-}
-
-func setupCapDrop(g *generate.Generator, caps ...string) error {
-	for _, cap := range caps {
-		if err := g.DropProcessCapabilityBounding(cap); err != nil {
-			return errors.Wrapf(err, "error removing %q from the bounding capability set", cap)
-		}
-		if err := g.DropProcessCapabilityEffective(cap); err != nil {
-			return errors.Wrapf(err, "error removing %q from the effective capability set", cap)
-		}
-		if err := g.DropProcessCapabilityInheritable(cap); err != nil {
-			return errors.Wrapf(err, "error removing %q from the inheritable capability set", cap)
-		}
-		if err := g.DropProcessCapabilityPermitted(cap); err != nil {
-			return errors.Wrapf(err, "error removing %q from the permitted capability set", cap)
-		}
-		if err := g.DropProcessCapabilityAmbient(cap); err != nil {
-			return errors.Wrapf(err, "error removing %q from the ambient capability set", cap)
-		}
-	}
-	return nil
-}
-
-func setupCapabilities(g *generate.Generator, firstAdds, firstDrops, secondAdds, secondDrops []string) error {
-	g.ClearProcessCapabilities()
-	if err := setupCapAdd(g, util.DefaultCapabilities...); err != nil {
-		return err
-	}
-	if err := setupCapAdd(g, firstAdds...); err != nil {
-		return err
-	}
-	if err := setupCapDrop(g, firstDrops...); err != nil {
-		return err
-	}
-	if err := setupCapAdd(g, secondAdds...); err != nil {
-		return err
-	}
-	return setupCapDrop(g, secondDrops...)
-}
-
-func setupTerminal(g *generate.Generator, terminalPolicy TerminalPolicy, terminalSize *specs.Box) {
-	switch terminalPolicy {
-	case DefaultTerminal:
-		onTerminal := terminal.IsTerminal(unix.Stdin) && terminal.IsTerminal(unix.Stdout) && terminal.IsTerminal(unix.Stderr)
-		if onTerminal {
-			logrus.Debugf("stdio is a terminal, defaulting to using a terminal")
-		} else {
-			logrus.Debugf("stdio is not a terminal, defaulting to not using a terminal")
-		}
-		g.SetProcessTerminal(onTerminal)
-	case WithTerminal:
-		g.SetProcessTerminal(true)
-	case WithoutTerminal:
-		g.SetProcessTerminal(false)
-	}
-	if terminalSize != nil {
-		g.SetProcessConsoleSize(terminalSize.Width, terminalSize.Height)
-	}
-}
-
-func setupNamespaces(g *generate.Generator, namespaceOptions NamespaceOptions, idmapOptions IDMappingOptions, policy NetworkConfigurationPolicy) (configureNetwork bool, configureNetworks []string, configureUTS bool, err error) {
-	// Set namespace options in the container configuration.
-	configureUserns := false
-	specifiedNetwork := false
-	for _, namespaceOption := range namespaceOptions {
-		switch namespaceOption.Name {
-		case string(specs.UserNamespace):
-			configureUserns = false
-			if !namespaceOption.Host && namespaceOption.Path == "" {
-				configureUserns = true
-			}
-		case string(specs.NetworkNamespace):
-			specifiedNetwork = true
-			configureNetwork = false
-			if !namespaceOption.Host && (namespaceOption.Path == "" || !filepath.IsAbs(namespaceOption.Path)) {
-				if namespaceOption.Path != "" && !filepath.IsAbs(namespaceOption.Path) {
-					configureNetworks = strings.Split(namespaceOption.Path, ",")
-					namespaceOption.Path = ""
-				}
-				configureNetwork = (policy != NetworkDisabled)
-			}
-		case string(specs.UTSNamespace):
-			configureUTS = false
-			if !namespaceOption.Host && namespaceOption.Path == "" {
-				configureUTS = true
-			}
-		}
-		if namespaceOption.Host {
-			if err := g.RemoveLinuxNamespace(namespaceOption.Name); err != nil {
-				return false, nil, false, errors.Wrapf(err, "error removing %q namespace for run", namespaceOption.Name)
-			}
-		} else if err := g.AddOrReplaceLinuxNamespace(namespaceOption.Name, namespaceOption.Path); err != nil {
-			if namespaceOption.Path == "" {
-				return false, nil, false, errors.Wrapf(err, "error adding new %q namespace for run", namespaceOption.Name)
-			}
-			return false, nil, false, errors.Wrapf(err, "error adding %q namespace %q for run", namespaceOption.Name, namespaceOption.Path)
-		}
-	}
-
-	// If we've got mappings, we're going to have to create a user namespace.
-	if len(idmapOptions.UIDMap) > 0 || len(idmapOptions.GIDMap) > 0 || configureUserns {
-		if err := g.AddOrReplaceLinuxNamespace(specs.UserNamespace, ""); err != nil {
-			return false, nil, false, errors.Wrapf(err, "error adding new %q namespace for run", string(specs.UserNamespace))
-		}
-		hostUidmap, hostGidmap, err := unshare.GetHostIDMappings("")
-		if err != nil {
-			return false, nil, false, err
-		}
-		for _, m := range idmapOptions.UIDMap {
-			g.AddLinuxUIDMapping(m.HostID, m.ContainerID, m.Size)
-		}
-		if len(idmapOptions.UIDMap) == 0 {
-			for _, m := range hostUidmap {
-				g.AddLinuxUIDMapping(m.ContainerID, m.ContainerID, m.Size)
-			}
-		}
-		for _, m := range idmapOptions.GIDMap {
-			g.AddLinuxGIDMapping(m.HostID, m.ContainerID, m.Size)
-		}
-		if len(idmapOptions.GIDMap) == 0 {
-			for _, m := range hostGidmap {
-				g.AddLinuxGIDMapping(m.ContainerID, m.ContainerID, m.Size)
-			}
-		}
-		if !specifiedNetwork {
-			if err := g.AddOrReplaceLinuxNamespace(specs.NetworkNamespace, ""); err != nil {
-				return false, nil, false, errors.Wrapf(err, "error adding new %q namespace for run", string(specs.NetworkNamespace))
-			}
-			configureNetwork = (policy != NetworkDisabled)
-		}
-	} else {
-		if err := g.RemoveLinuxNamespace(specs.UserNamespace); err != nil {
-			return false, nil, false, errors.Wrapf(err, "error removing %q namespace for run", string(specs.UserNamespace))
-		}
-		if !specifiedNetwork {
-			if err := g.RemoveLinuxNamespace(specs.NetworkNamespace); err != nil {
-				return false, nil, false, errors.Wrapf(err, "error removing %q namespace for run", string(specs.NetworkNamespace))
-			}
-		}
-	}
-	if configureNetwork {
-		for name, val := range util.DefaultNetworkSysctl {
-			g.AddLinuxSysctl(name, val)
-		}
-	}
-	return configureNetwork, configureNetworks, configureUTS, nil
-}
-
-// Search for a command that isn't given as an absolute path using the $PATH
-// under the rootfs.  We can't resolve absolute symbolic links without
-// chroot()ing, which we may not be able to do, so just accept a link as a
-// valid resolution.
-func runLookupPath(g *generate.Generator, command []string) []string {
-	// Look for the configured $PATH.
-	spec := g.Config
-	envPath := ""
-	for i := range spec.Process.Env {
-		if strings.HasPrefix(spec.Process.Env[i], "PATH=") {
-			envPath = spec.Process.Env[i]
-		}
-	}
-	// If there is no configured $PATH, supply one.
-	if envPath == "" {
-		defaultPath := "/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin"
-		envPath = "PATH=" + defaultPath
-		g.AddProcessEnv("PATH", defaultPath)
-	}
-	// No command, nothing to do.
-	if len(command) == 0 {
-		return command
-	}
-	// Command is already an absolute path, use it as-is.
-	if filepath.IsAbs(command[0]) {
-		return command
-	}
-	// For each element in the PATH,
-	for _, pathEntry := range filepath.SplitList(envPath[5:]) {
-		// if it's the empty string, it's ".", which is the Cwd,
-		if pathEntry == "" {
-			pathEntry = spec.Process.Cwd
-		}
-		// build the absolute path which it might be,
-		candidate := filepath.Join(pathEntry, command[0])
-		// check if it's there,
-		if fi, err := os.Lstat(filepath.Join(spec.Root.Path, candidate)); fi != nil && err == nil {
-			// and if it's not a directory, and either a symlink or executable,
-			if !fi.IsDir() && ((fi.Mode()&os.ModeSymlink != 0) || (fi.Mode()&0111 != 0)) {
-				// use that.
-				return append([]string{candidate}, command[1:]...)
-			}
-		}
-	}
-	return command
-}
-
-func (b *Builder) configureUIDGID(g *generate.Generator, mountPoint string, options RunOptions) error {
-	// Set the user UID/GID/supplemental group list/capabilities lists.
-	user, err := b.user(mountPoint, options.User)
-	if err != nil {
-		return err
-	}
-	if err := setupCapabilities(g, b.AddCapabilities, b.DropCapabilities, options.AddCapabilities, options.DropCapabilities); err != nil {
-		return err
-	}
-	g.SetProcessUID(user.UID)
-	g.SetProcessGID(user.GID)
-	for _, gid := range user.AdditionalGids {
-		g.AddProcessAdditionalGid(gid)
-	}
-
-	// Remove capabilities if not running as root except Bounding set
-	if user.UID != 0 {
-		bounding := g.Config.Process.Capabilities.Bounding
-		g.ClearProcessCapabilities()
-		g.Config.Process.Capabilities.Bounding = bounding
-	}
-
-	return nil
-}
-
-func (b *Builder) configureEnvironment(g *generate.Generator, options RunOptions) {
-	g.ClearProcessEnv()
-	if b.CommonBuildOpts.HTTPProxy {
-		for _, envSpec := range []string{
-			"http_proxy",
-			"HTTP_PROXY",
-			"https_proxy",
-			"HTTPS_PROXY",
-			"ftp_proxy",
-			"FTP_PROXY",
-			"no_proxy",
-			"NO_PROXY",
-		} {
-			envVal := os.Getenv(envSpec)
-			if envVal != "" {
-				g.AddProcessEnv(envSpec, envVal)
-			}
-		}
-	}
-
-	for _, envSpec := range append(b.Env(), options.Env...) {
-		env := strings.SplitN(envSpec, "=", 2)
-		if len(env) > 1 {
-			g.AddProcessEnv(env[0], env[1])
-		}
-	}
-
-	for src, dest := range b.Args {
-		g.AddProcessEnv(src, dest)
-	}
-}
-
-func (b *Builder) configureNamespaces(g *generate.Generator, options RunOptions) (bool, []string, error) {
-	defaultNamespaceOptions, err := DefaultNamespaceOptions()
-	if err != nil {
-		return false, nil, err
-	}
-
-	namespaceOptions := defaultNamespaceOptions
-	namespaceOptions.AddOrReplace(b.NamespaceOptions...)
-	namespaceOptions.AddOrReplace(options.NamespaceOptions...)
-
-	networkPolicy := options.ConfigureNetwork
-	if networkPolicy == NetworkDefault {
-		networkPolicy = b.ConfigureNetwork
-	}
-
-	configureNetwork, configureNetworks, configureUTS, err := setupNamespaces(g, namespaceOptions, b.IDMappingOptions, networkPolicy)
-	if err != nil {
-		return false, nil, err
-	}
-
-	if configureUTS {
-		if options.Hostname != "" {
-			g.SetHostname(options.Hostname)
-		} else if b.Hostname() != "" {
-			g.SetHostname(b.Hostname())
-		} else {
-			g.SetHostname(stringid.TruncateID(b.ContainerID))
-		}
-	} else {
-		g.SetHostname("")
-	}
-
-	found := false
-	spec := g.Config
-	for i := range spec.Process.Env {
-		if strings.HasPrefix(spec.Process.Env[i], "HOSTNAME=") {
-			found = true
-			break
-		}
-	}
-	if !found {
-		spec.Process.Env = append(spec.Process.Env, fmt.Sprintf("HOSTNAME=%s", spec.Hostname))
-	}
-
-	return configureNetwork, configureNetworks, nil
-}
-
-// Run runs the specified command in the container's root filesystem.
-func (b *Builder) Run(command []string, options RunOptions) error {
-	p, err := ioutil.TempDir("", Package)
-	if err != nil {
-		return errors.Wrapf(err, "run: error creating temporary directory under %q", os.TempDir())
-	}
-	// On some hosts like AH, /tmp is a symlink and we need an
-	// absolute path.
-	path, err := filepath.EvalSymlinks(p)
-	if err != nil {
-		return errors.Wrapf(err, "run: error evaluating %q for symbolic links", p)
-	}
-	logrus.Debugf("using %q to hold bundle data", path)
-	defer func() {
-		if err2 := os.RemoveAll(path); err2 != nil {
-			logrus.Errorf("error removing %q: %v", path, err2)
-		}
-	}()
-
-	gp, err := generate.New("linux")
-	if err != nil {
-		return errors.Wrapf(err, "error generating new 'linux' runtime spec")
-	}
-	g := &gp
-
-	isolation := options.Isolation
-	if isolation == IsolationDefault {
-		isolation = b.Isolation
-		if isolation == IsolationDefault {
-			isolation = IsolationOCI
-		}
-	}
-	if err := checkAndOverrideIsolationOptions(isolation, &options); err != nil {
-		return err
-	}
-
-	b.configureEnvironment(g, options)
-
-	if b.CommonBuildOpts == nil {
-		return errors.Errorf("Invalid format on container you must recreate the container")
-	}
-
-	if err := addCommonOptsToSpec(b.CommonBuildOpts, g); err != nil {
-		return err
-	}
-
-	if options.WorkingDir != "" {
-		g.SetProcessCwd(options.WorkingDir)
-	} else if b.WorkDir() != "" {
-		g.SetProcessCwd(b.WorkDir())
-	}
-	setupSelinux(g, b.ProcessLabel, b.MountLabel)
-	mountPoint, err := b.Mount(b.MountLabel)
-	if err != nil {
-		return errors.Wrapf(err, "error mounting container %q", b.ContainerID)
-	}
-	defer func() {
-		if err := b.Unmount(); err != nil {
-			logrus.Errorf("error unmounting container: %v", err)
-		}
-	}()
-	g.SetRootPath(mountPoint)
-	if len(command) > 0 {
-		command = runLookupPath(g, command)
-		g.SetProcessArgs(command)
-	} else {
-		g.SetProcessArgs(nil)
-	}
-
-	setupMaskedPaths(g)
-	setupReadOnlyPaths(g)
-
-	setupTerminal(g, options.Terminal, options.TerminalSize)
-
-	configureNetwork, configureNetworks, err := b.configureNamespaces(g, options)
-	if err != nil {
-		return err
-	}
-
-	if err := b.configureUIDGID(g, mountPoint, options); err != nil {
-		return err
-	}
-
-	g.SetProcessApparmorProfile(b.CommonBuildOpts.ApparmorProfile)
-
-	// Now grab the spec from the generator.  Set the generator to nil so that future contributors
-	// will quickly be able to tell that they're supposed to be modifying the spec directly from here.
-	spec := g.Config
-	g = nil
-
-	logrus.Debugf("ensuring working directory %q exists", filepath.Join(mountPoint, spec.Process.Cwd))
-	if err = os.MkdirAll(filepath.Join(mountPoint, spec.Process.Cwd), 0755); err != nil {
-		return errors.Wrapf(err, "error ensuring working directory %q exists", spec.Process.Cwd)
-	}
-
-	// Set the seccomp configuration using the specified profile name.  Some syscalls are
-	// allowed if certain capabilities are to be granted (example: CAP_SYS_CHROOT and chroot),
-	// so we sorted out the capabilities lists first.
-	if err = setupSeccomp(spec, b.CommonBuildOpts.SeccompProfilePath); err != nil {
-		return err
-	}
-
-	// Figure out who owns files that will appear to be owned by UID/GID 0 in the container.
-	rootUID, rootGID, err := util.GetHostRootIDs(spec)
-	if err != nil {
-		return err
-	}
-	rootIDPair := &idtools.IDPair{UID: int(rootUID), GID: int(rootGID)}
-
-	bindFiles := make(map[string]string)
-	namespaceOptions := append(b.NamespaceOptions, options.NamespaceOptions...)
-	volumes := b.Volumes()
-
-	if !contains(volumes, "/etc/hosts") {
-		hostFile, err := b.generateHosts(path, spec.Hostname, b.CommonBuildOpts.AddHost, rootIDPair)
-		if err != nil {
-			return err
-		}
-		bindFiles["/etc/hosts"] = hostFile
-	}
-
-	if !contains(volumes, "/etc/resolv.conf") {
-		resolvFile, err := b.addNetworkConfig(path, "/etc/resolv.conf", rootIDPair, b.CommonBuildOpts.DNSServers, b.CommonBuildOpts.DNSSearch, b.CommonBuildOpts.DNSOptions)
-		if err != nil {
-			return err
-		}
-		bindFiles["/etc/resolv.conf"] = resolvFile
-	}
-
-	err = b.setupMounts(mountPoint, spec, path, options.Mounts, bindFiles, volumes, b.CommonBuildOpts.Volumes, b.CommonBuildOpts.ShmSize, namespaceOptions)
-	if err != nil {
-		return errors.Wrapf(err, "error resolving mountpoints for container %q", b.ContainerID)
-	}
-
-	if options.CNIConfigDir == "" {
-		options.CNIConfigDir = b.CNIConfigDir
-		if b.CNIConfigDir == "" {
-			options.CNIConfigDir = util.DefaultCNIConfigDir
-		}
-	}
-	if options.CNIPluginPath == "" {
-		options.CNIPluginPath = b.CNIPluginPath
-		if b.CNIPluginPath == "" {
-			options.CNIPluginPath = util.DefaultCNIPluginPath
-		}
-	}
-
-	switch isolation {
-	case IsolationOCI:
-		var moreCreateArgs []string
-		if options.NoPivot {
-			moreCreateArgs = []string{"--no-pivot"}
-		} else {
-			moreCreateArgs = nil
-		}
-		err = b.runUsingRuntimeSubproc(isolation, options, configureNetwork, configureNetworks, moreCreateArgs, spec, mountPoint, path, Package+"-"+filepath.Base(path))
-	case IsolationChroot:
-		err = chroot.RunUsingChroot(spec, path, options.Stdin, options.Stdout, options.Stderr)
-	case IsolationOCIRootless:
-		moreCreateArgs := []string{"--no-new-keyring"}
-		if options.NoPivot {
-			moreCreateArgs = append(moreCreateArgs, "--no-pivot")
-		}
-		if err := setupRootlessSpecChanges(spec, path, rootUID, rootGID); err != nil {
-			return err
-		}
-		err = b.runUsingRuntimeSubproc(isolation, options, configureNetwork, configureNetworks, moreCreateArgs, spec, mountPoint, path, Package+"-"+filepath.Base(path))
-	default:
-		err = errors.Errorf("don't know how to run this command")
-	}
-	return err
-}
-
-func contains(volumes []string, v string) bool {
-	for _, i := range volumes {
-		if i == v {
-			return true
-		}
-	}
-	return false
-}
-
-func checkAndOverrideIsolationOptions(isolation Isolation, options *RunOptions) error {
-	switch isolation {
-	case IsolationOCIRootless:
-		if ns := options.NamespaceOptions.Find(string(specs.IPCNamespace)); ns == nil || ns.Host {
-			logrus.Debugf("Forcing use of an IPC namespace.")
-		}
-		options.NamespaceOptions.AddOrReplace(NamespaceOption{Name: string(specs.IPCNamespace)})
-		_, err := exec.LookPath("slirp4netns")
-		hostNetworking := err != nil
-		networkNamespacePath := ""
-		if ns := options.NamespaceOptions.Find(string(specs.NetworkNamespace)); ns != nil {
-			hostNetworking = ns.Host
-			networkNamespacePath = ns.Path
-			if !hostNetworking && networkNamespacePath != "" && !filepath.IsAbs(networkNamespacePath) {
-				logrus.Debugf("Disabling network namespace configuration.")
-				networkNamespacePath = ""
-			}
-		}
-		options.NamespaceOptions.AddOrReplace(NamespaceOption{
-			Name: string(specs.NetworkNamespace),
-			Host: hostNetworking,
-			Path: networkNamespacePath,
-		})
-		if ns := options.NamespaceOptions.Find(string(specs.PIDNamespace)); ns == nil || ns.Host {
-			logrus.Debugf("Forcing use of a PID namespace.")
-		}
-		options.NamespaceOptions.AddOrReplace(NamespaceOption{Name: string(specs.PIDNamespace), Host: false})
-		if ns := options.NamespaceOptions.Find(string(specs.UserNamespace)); ns == nil || ns.Host {
-			logrus.Debugf("Forcing use of a user namespace.")
-		}
-		options.NamespaceOptions.AddOrReplace(NamespaceOption{Name: string(specs.UserNamespace)})
-		if ns := options.NamespaceOptions.Find(string(specs.UTSNamespace)); ns != nil && !ns.Host {
-			logrus.Debugf("Disabling UTS namespace.")
-		}
-		options.NamespaceOptions.AddOrReplace(NamespaceOption{Name: string(specs.UTSNamespace), Host: true})
-	case IsolationOCI:
-		pidns := options.NamespaceOptions.Find(string(specs.PIDNamespace))
-		userns := options.NamespaceOptions.Find(string(specs.UserNamespace))
-		if (pidns == nil || pidns.Host) && (userns != nil && !userns.Host) {
-			return fmt.Errorf("not allowed to mix host PID namespace with container user namespace")
-		}
-	}
-	return nil
-}
-
-func setupRootlessSpecChanges(spec *specs.Spec, bundleDir string, rootUID, rootGID uint32) error {
-	spec.Hostname = ""
-	spec.Process.User.AdditionalGids = nil
-	spec.Linux.Resources = nil
-
-	emptyDir := filepath.Join(bundleDir, "empty")
-	if err := os.Mkdir(emptyDir, 0); err != nil {
-		return errors.Wrapf(err, "error creating %q", emptyDir)
-	}
-
-	// Replace /sys with a read-only bind mount.
-	mounts := []specs.Mount{
-		{
-			Source:      "/dev",
-			Destination: "/dev",
-			Type:        "tmpfs",
-			Options:     []string{"private", "strictatime", "noexec", "nosuid", "mode=755", "size=65536k"},
-		},
-		{
-			Source:      "mqueue",
-			Destination: "/dev/mqueue",
-			Type:        "mqueue",
-			Options:     []string{"private", "nodev", "noexec", "nosuid"},
-		},
-		{
-			Source:      "pts",
-			Destination: "/dev/pts",
-			Type:        "devpts",
-			Options:     []string{"private", "noexec", "nosuid", "newinstance", "ptmxmode=0666", "mode=0620"},
-		},
-		{
-			Source:      "shm",
-			Destination: "/dev/shm",
-			Type:        "tmpfs",
-			Options:     []string{"private", "nodev", "noexec", "nosuid", "mode=1777", "size=65536k"},
-		},
-		{
-			Source:      "/proc",
-			Destination: "/proc",
-			Type:        "proc",
-			Options:     []string{"private", "nodev", "noexec", "nosuid"},
-		},
-		{
-			Source:      "/sys",
-			Destination: "/sys",
-			Type:        "bind",
-			Options:     []string{bind.NoBindOption, "rbind", "private", "nodev", "noexec", "nosuid", "ro"},
-		},
-	}
-	// Cover up /sys/fs/cgroup and /sys/fs/selinux, if they exist in our source for /sys.
-	if _, err := os.Stat("/sys/fs/cgroup"); err == nil {
-		spec.Linux.MaskedPaths = append(spec.Linux.MaskedPaths, "/sys/fs/cgroup")
-	}
-	if _, err := os.Stat("/sys/fs/selinux"); err == nil {
-		spec.Linux.MaskedPaths = append(spec.Linux.MaskedPaths, "/sys/fs/selinux")
-	}
-	// Keep anything that isn't under /dev, /proc, or /sys.
-	for i := range spec.Mounts {
-		if spec.Mounts[i].Destination == "/dev" || strings.HasPrefix(spec.Mounts[i].Destination, "/dev/") ||
-			spec.Mounts[i].Destination == "/proc" || strings.HasPrefix(spec.Mounts[i].Destination, "/proc/") ||
-			spec.Mounts[i].Destination == "/sys" || strings.HasPrefix(spec.Mounts[i].Destination, "/sys/") {
-			continue
-		}
-		mounts = append(mounts, spec.Mounts[i])
-	}
-	spec.Mounts = mounts
-	return nil
-}
-
-type runUsingRuntimeSubprocOptions struct {
-	Options           RunOptions
-	Spec              *specs.Spec
-	RootPath          string
-	BundlePath        string
-	ConfigureNetwork  bool
-	ConfigureNetworks []string
-	MoreCreateArgs    []string
-	ContainerName     string
-	Isolation         Isolation
-}
-
-func (b *Builder) runUsingRuntimeSubproc(isolation Isolation, options RunOptions, configureNetwork bool, configureNetworks, moreCreateArgs []string, spec *specs.Spec, rootPath, bundlePath, containerName string) (err error) {
-	var confwg sync.WaitGroup
-	config, conferr := json.Marshal(runUsingRuntimeSubprocOptions{
-		Options:           options,
-		Spec:              spec,
-		RootPath:          rootPath,
-		BundlePath:        bundlePath,
-		ConfigureNetwork:  configureNetwork,
-		ConfigureNetworks: configureNetworks,
-		MoreCreateArgs:    moreCreateArgs,
-		ContainerName:     containerName,
-		Isolation:         isolation,
-	})
-	if conferr != nil {
-		return errors.Wrapf(conferr, "error encoding configuration for %q", runUsingRuntimeCommand)
-	}
-	cmd := reexec.Command(runUsingRuntimeCommand)
-	cmd.Dir = bundlePath
-	cmd.Stdin = options.Stdin
-	if cmd.Stdin == nil {
-		cmd.Stdin = os.Stdin
-	}
-	cmd.Stdout = options.Stdout
-	if cmd.Stdout == nil {
-		cmd.Stdout = os.Stdout
-	}
-	cmd.Stderr = options.Stderr
-	if cmd.Stderr == nil {
-		cmd.Stderr = os.Stderr
-	}
-	cmd.Env = append(os.Environ(), fmt.Sprintf("LOGLEVEL=%d", logrus.GetLevel()))
-	preader, pwriter, err := os.Pipe()
-	if err != nil {
-		return errors.Wrapf(err, "error creating configuration pipe")
-	}
-	confwg.Add(1)
-	go func() {
-		_, conferr = io.Copy(pwriter, bytes.NewReader(config))
-		if conferr != nil {
-			conferr = errors.Wrapf(conferr, "error while copying configuration down pipe to child process")
-		}
-		confwg.Done()
-	}()
-	cmd.ExtraFiles = append([]*os.File{preader}, cmd.ExtraFiles...)
-	defer preader.Close()
-	defer pwriter.Close()
-	err = cmd.Run()
-	if err != nil {
-		err = errors.Wrapf(err, "error while running runtime")
-	}
-	confwg.Wait()
-	if err == nil {
-		return conferr
-	}
-	if conferr != nil {
-		logrus.Debugf("%v", conferr)
-	}
-	return err
-}
-
-func init() {
-	reexec.Register(runUsingRuntimeCommand, runUsingRuntimeMain)
-}
-
-func runUsingRuntimeMain() {
-	var options runUsingRuntimeSubprocOptions
-	// Set logging.
-	if level := os.Getenv("LOGLEVEL"); level != "" {
-		if ll, err := strconv.Atoi(level); err == nil {
-			logrus.SetLevel(logrus.Level(ll))
-		}
-	}
-	// Unpack our configuration.
-	confPipe := os.NewFile(3, "confpipe")
-	if confPipe == nil {
-		fmt.Fprintf(os.Stderr, "error reading options pipe\n")
-		os.Exit(1)
-	}
-	defer confPipe.Close()
-	if err := json.NewDecoder(confPipe).Decode(&options); err != nil {
-		fmt.Fprintf(os.Stderr, "error decoding options: %v\n", err)
-		os.Exit(1)
-	}
-	// Set ourselves up to read the container's exit status.  We're doing this in a child process
-	// so that we won't mess with the setting in a caller of the library. This stubs to OS specific
-	// calls
-	if err := setChildProcess(); err != nil {
-		os.Exit(1)
-	}
-	// Run the container, start to finish.
-	status, err := runUsingRuntime(options.Isolation, options.Options, options.ConfigureNetwork, options.ConfigureNetworks, options.MoreCreateArgs, options.Spec, options.RootPath, options.BundlePath, options.ContainerName)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "error running container: %v\n", err)
-		os.Exit(1)
-	}
-	// Pass the container's exit status back to the caller by exiting with the same status.
-	if status.Exited() {
-		os.Exit(status.ExitStatus())
-	} else if status.Signaled() {
-		fmt.Fprintf(os.Stderr, "container exited on %s\n", status.Signal())
-		os.Exit(1)
-	}
-	os.Exit(1)
-}
-
-func runUsingRuntime(isolation Isolation, options RunOptions, configureNetwork bool, configureNetworks, moreCreateArgs []string, spec *specs.Spec, rootPath, bundlePath, containerName string) (wstatus unix.WaitStatus, err error) {
-	// Lock the caller to a single OS-level thread.
-	runtime.LockOSThread()
-
-	// Set up bind mounts for things that a namespaced user might not be able to get to directly.
-	unmountAll, err := bind.SetupIntermediateMountNamespace(spec, bundlePath)
-	if unmountAll != nil {
-		defer func() {
-			if err := unmountAll(); err != nil {
-				logrus.Error(err)
-			}
-		}()
-	}
-	if err != nil {
-		return 1, err
-	}
-
-	// Write the runtime configuration.
-	specbytes, err := json.Marshal(spec)
-	if err != nil {
-		return 1, errors.Wrapf(err, "error encoding configuration %#v as json", spec)
-	}
-	if err = ioutils.AtomicWriteFile(filepath.Join(bundlePath, "config.json"), specbytes, 0600); err != nil {
-		return 1, errors.Wrapf(err, "error storing runtime configuration in %q", filepath.Join(bundlePath, "config.json"))
-	}
-
-	logrus.Debugf("config = %v", string(specbytes))
-
-	// Decide which runtime to use.
-	runtime := options.Runtime
-	if runtime == "" {
-		runtime = util.Runtime()
-	}
-
-	// Default to just passing down our stdio.
-	getCreateStdio := func() (io.ReadCloser, io.WriteCloser, io.WriteCloser) {
-		return os.Stdin, os.Stdout, os.Stderr
-	}
-
-	// Figure out how we're doing stdio handling, and create pipes and sockets.
-	var stdio sync.WaitGroup
-	var consoleListener *net.UnixListener
-	var errorFds, closeBeforeReadingErrorFds []int
-	stdioPipe := make([][]int, 3)
-	copyConsole := false
-	copyPipes := false
-	finishCopy := make([]int, 2)
-	if err = unix.Pipe(finishCopy); err != nil {
-		return 1, errors.Wrapf(err, "error creating pipe for notifying to stop stdio")
-	}
-	finishedCopy := make(chan struct{})
-	if spec.Process != nil {
-		if spec.Process.Terminal {
-			copyConsole = true
-			// Create a listening socket for accepting the container's terminal's PTY master.
-			socketPath := filepath.Join(bundlePath, "console.sock")
-			consoleListener, err = net.ListenUnix("unix", &net.UnixAddr{Name: socketPath, Net: "unix"})
-			if err != nil {
-				return 1, errors.Wrapf(err, "error creating socket %q to receive terminal descriptor", consoleListener.Addr())
-			}
-			// Add console socket arguments.
-			moreCreateArgs = append(moreCreateArgs, "--console-socket", socketPath)
-		} else {
-			copyPipes = true
-			// Figure out who should own the pipes.
-			uid, gid, err := util.GetHostRootIDs(spec)
-			if err != nil {
-				return 1, err
-			}
-			// Create stdio pipes.
-			if stdioPipe, err = runMakeStdioPipe(int(uid), int(gid)); err != nil {
-				return 1, err
-			}
-			errorFds = []int{stdioPipe[unix.Stdout][0], stdioPipe[unix.Stderr][0]}
-			closeBeforeReadingErrorFds = []int{stdioPipe[unix.Stdout][1], stdioPipe[unix.Stderr][1]}
-			// Set stdio to our pipes.
-			getCreateStdio = func() (io.ReadCloser, io.WriteCloser, io.WriteCloser) {
-				stdin := os.NewFile(uintptr(stdioPipe[unix.Stdin][0]), "/dev/stdin")
-				stdout := os.NewFile(uintptr(stdioPipe[unix.Stdout][1]), "/dev/stdout")
-				stderr := os.NewFile(uintptr(stdioPipe[unix.Stderr][1]), "/dev/stderr")
-				return stdin, stdout, stderr
-			}
-		}
-	} else {
-		if options.Quiet {
-			// Discard stdout.
-			getCreateStdio = func() (io.ReadCloser, io.WriteCloser, io.WriteCloser) {
-				return os.Stdin, nil, os.Stderr
-			}
-		}
-	}
-
-	// Build the commands that we'll execute.
-	pidFile := filepath.Join(bundlePath, "pid")
-	args := append(append(append(options.Args, "create", "--bundle", bundlePath, "--pid-file", pidFile), moreCreateArgs...), containerName)
-	create := exec.Command(runtime, args...)
-	create.Dir = bundlePath
-	stdin, stdout, stderr := getCreateStdio()
-	create.Stdin, create.Stdout, create.Stderr = stdin, stdout, stderr
-	if create.SysProcAttr == nil {
-		create.SysProcAttr = &syscall.SysProcAttr{}
-	}
-
-	args = append(options.Args, "start", containerName)
-	start := exec.Command(runtime, args...)
-	start.Dir = bundlePath
-	start.Stderr = os.Stderr
-
-	args = append(options.Args, "kill", containerName)
-	kill := exec.Command(runtime, args...)
-	kill.Dir = bundlePath
-	kill.Stderr = os.Stderr
-
-	args = append(options.Args, "delete", containerName)
-	del := exec.Command(runtime, args...)
-	del.Dir = bundlePath
-	del.Stderr = os.Stderr
-
-	// Actually create the container.
-	logrus.Debugf("Running %q", create.Args)
-	err = create.Run()
-	if err != nil {
-		return 1, errors.Wrapf(err, "error creating container for %v: %s", spec.Process.Args, runCollectOutput(errorFds, closeBeforeReadingErrorFds))
-	}
-	defer func() {
-		err2 := del.Run()
-		if err2 != nil {
-			if err == nil {
-				err = errors.Wrapf(err2, "error deleting container")
-			} else {
-				logrus.Infof("error deleting container: %v", err2)
-			}
-		}
-	}()
-
-	// Make sure we read the container's exit status when it exits.
-	pidValue, err := ioutil.ReadFile(pidFile)
-	if err != nil {
-		return 1, errors.Wrapf(err, "error reading pid from %q", pidFile)
-	}
-	pid, err := strconv.Atoi(strings.TrimSpace(string(pidValue)))
-	if err != nil {
-		return 1, errors.Wrapf(err, "error parsing pid %s as a number", string(pidValue))
-	}
-	var reaping sync.WaitGroup
-	reaping.Add(1)
-	go func() {
-		defer reaping.Done()
-		var err error
-		_, err = unix.Wait4(pid, &wstatus, 0, nil)
-		if err != nil {
-			wstatus = 0
-			logrus.Errorf("error waiting for container child process %d: %v\n", pid, err)
-		}
-	}()
-
-	if configureNetwork {
-		teardown, err := runConfigureNetwork(isolation, options, configureNetworks, pid, containerName, spec.Process.Args)
-		if teardown != nil {
-			defer teardown()
-		}
-		if err != nil {
-			return 1, err
-		}
-	}
-
-	if copyPipes {
-		// We don't need the ends of the pipes that belong to the container.
-		stdin.Close()
-		if stdout != nil {
-			stdout.Close()
-		}
-		stderr.Close()
-	}
-
-	// Handle stdio for the container in the background.
-	stdio.Add(1)
-	go runCopyStdio(&stdio, copyPipes, stdioPipe, copyConsole, consoleListener, finishCopy, finishedCopy, spec)
-
-	// Start the container.
-	logrus.Debugf("Running %q", start.Args)
-	err = start.Run()
-	if err != nil {
-		return 1, errors.Wrapf(err, "error starting container")
-	}
-	stopped := false
-	defer func() {
-		if !stopped {
-			err2 := kill.Run()
-			if err2 != nil {
-				if err == nil {
-					err = errors.Wrapf(err2, "error stopping container")
-				} else {
-					logrus.Infof("error stopping container: %v", err2)
-				}
-			}
-		}
-	}()
-
-	// Wait for the container to exit.
-	for {
-		now := time.Now()
-		var state specs.State
-		args = append(options.Args, "state", containerName)
-		stat := exec.Command(runtime, args...)
-		stat.Dir = bundlePath
-		stat.Stderr = os.Stderr
-		stateOutput, stateErr := stat.Output()
-		if stateErr != nil {
-			return 1, errors.Wrapf(stateErr, "error reading container state")
-		}
-		if err = json.Unmarshal(stateOutput, &state); err != nil {
-			return 1, errors.Wrapf(stateErr, "error parsing container state %q", string(stateOutput))
-		}
-		switch state.Status {
-		case "running":
-		case "stopped":
-			stopped = true
-		default:
-			return 1, errors.Errorf("container status unexpectedly changed to %q", state.Status)
-		}
-		if stopped {
-			break
-		}
-		select {
-		case <-finishedCopy:
-			stopped = true
-		case <-time.After(time.Until(now.Add(100 * time.Millisecond))):
-			continue
-		}
-		if stopped {
-			break
-		}
-	}
-
-	// Close the writing end of the stop-handling-stdio notification pipe.
-	unix.Close(finishCopy[1])
-	// Wait for the stdio copy goroutine to flush.
-	stdio.Wait()
-	// Wait until we finish reading the exit status.
-	reaping.Wait()
-
-	return wstatus, nil
-}
-
-func runCollectOutput(fds, closeBeforeReadingFds []int) string {
-	for _, fd := range closeBeforeReadingFds {
-		unix.Close(fd)
-	}
-	var b bytes.Buffer
-	buf := make([]byte, 8192)
-	for _, fd := range fds {
-		nread, err := unix.Read(fd, buf)
-		if err != nil {
-			if errno, isErrno := err.(syscall.Errno); isErrno {
-				switch errno {
-				default:
-					logrus.Errorf("error reading from pipe %d: %v", fd, err)
-				case syscall.EINTR, syscall.EAGAIN:
-				}
-			} else {
-				logrus.Errorf("unable to wait for data from pipe %d: %v", fd, err)
-			}
-			continue
-		}
-		for nread > 0 {
-			r := buf[:nread]
-			if nwritten, err := b.Write(r); err != nil || nwritten != len(r) {
-				if nwritten != len(r) {
-					logrus.Errorf("error buffering data from pipe %d: %v", fd, err)
-					break
-				}
-			}
-			nread, err = unix.Read(fd, buf)
-			if err != nil {
-				if errno, isErrno := err.(syscall.Errno); isErrno {
-					switch errno {
-					default:
-						logrus.Errorf("error reading from pipe %d: %v", fd, err)
-					case syscall.EINTR, syscall.EAGAIN:
-					}
-				} else {
-					logrus.Errorf("unable to wait for data from pipe %d: %v", fd, err)
-				}
-				break
-			}
-		}
-	}
-	return b.String()
-}
-func setupRootlessNetwork(pid int) (teardown func(), err error) {
-	slirp4netns, err := exec.LookPath("slirp4netns")
-	if err != nil {
-		return nil, errors.Wrapf(err, "cannot find slirp4netns")
-	}
-
-	rootlessSlirpSyncR, rootlessSlirpSyncW, err := os.Pipe()
-	if err != nil {
-		return nil, errors.Wrapf(err, "cannot create slirp4netns sync pipe")
-	}
-	defer rootlessSlirpSyncR.Close()
-
-	// Be sure there are no fds inherited to slirp4netns except the sync pipe
-	files, err := ioutil.ReadDir("/proc/self/fd")
-	if err != nil {
-		return nil, errors.Wrapf(err, "cannot list open fds")
-	}
-	for _, f := range files {
-		fd, err := strconv.Atoi(f.Name())
-		if err != nil {
-			return nil, errors.Wrapf(err, "cannot parse fd")
-		}
-		if fd == int(rootlessSlirpSyncW.Fd()) {
-			continue
-		}
-		unix.CloseOnExec(fd)
-	}
-
-	cmd := exec.Command(slirp4netns, "--mtu", "65520", "-r", "3", "-c", fmt.Sprintf("%d", pid), "tap0")
-	cmd.Stdin, cmd.Stdout, cmd.Stderr = nil, nil, nil
-	cmd.ExtraFiles = []*os.File{rootlessSlirpSyncW}
-
-	err = cmd.Start()
-	rootlessSlirpSyncW.Close()
-	if err != nil {
-		return nil, errors.Wrapf(err, "cannot start slirp4netns")
-	}
-
-	b := make([]byte, 1)
-	for {
-		if err := rootlessSlirpSyncR.SetDeadline(time.Now().Add(1 * time.Second)); err != nil {
-			return nil, errors.Wrapf(err, "error setting slirp4netns pipe timeout")
-		}
-		if _, err := rootlessSlirpSyncR.Read(b); err == nil {
-			break
-		} else {
-			if os.IsTimeout(err) {
-				// Check if the process is still running.
-				var status syscall.WaitStatus
-				_, err := syscall.Wait4(cmd.Process.Pid, &status, syscall.WNOHANG, nil)
-				if err != nil {
-					return nil, errors.Wrapf(err, "failed to read slirp4netns process status")
-				}
-				if status.Exited() || status.Signaled() {
-					return nil, errors.New("slirp4netns failed")
-				}
-
-				continue
-			}
-			return nil, errors.Wrapf(err, "failed to read from slirp4netns sync pipe")
-		}
-	}
-
-	return func() {
-		cmd.Process.Kill()
-		cmd.Wait()
-	}, nil
-}
-
-func runConfigureNetwork(isolation Isolation, options RunOptions, configureNetworks []string, pid int, containerName string, command []string) (teardown func(), err error) {
-	var netconf, undo []*libcni.NetworkConfigList
-
-	if isolation == IsolationOCIRootless {
-		if ns := options.NamespaceOptions.Find(string(specs.NetworkNamespace)); ns != nil && !ns.Host && ns.Path == "" {
-			return setupRootlessNetwork(pid)
-		}
-	}
-	// Scan for CNI configuration files.
-	confdir := options.CNIConfigDir
-	files, err := libcni.ConfFiles(confdir, []string{".conf"})
-	if err != nil {
-		return nil, errors.Wrapf(err, "error finding CNI networking configuration files named *.conf in directory %q", confdir)
-	}
-	lists, err := libcni.ConfFiles(confdir, []string{".conflist"})
-	if err != nil {
-		return nil, errors.Wrapf(err, "error finding CNI networking configuration list files named *.conflist in directory %q", confdir)
-	}
-	logrus.Debugf("CNI network configuration file list: %#v", append(files, lists...))
-	// Read the CNI configuration files.
-	for _, file := range files {
-		nc, err := libcni.ConfFromFile(file)
-		if err != nil {
-			return nil, errors.Wrapf(err, "error loading networking configuration from file %q for %v", file, command)
-		}
-		if len(configureNetworks) > 0 && nc.Network != nil && (nc.Network.Name == "" || !util.StringInSlice(nc.Network.Name, configureNetworks)) {
-			if nc.Network.Name == "" {
-				logrus.Debugf("configuration in %q has no name, skipping it", file)
-			} else {
-				logrus.Debugf("configuration in %q has name %q, skipping it", file, nc.Network.Name)
-			}
-			continue
-		}
-		cl, err := libcni.ConfListFromConf(nc)
-		if err != nil {
-			return nil, errors.Wrapf(err, "error converting networking configuration from file %q for %v", file, command)
-		}
-		logrus.Debugf("using network configuration from %q", file)
-		netconf = append(netconf, cl)
-	}
-	for _, list := range lists {
-		cl, err := libcni.ConfListFromFile(list)
-		if err != nil {
-			return nil, errors.Wrapf(err, "error loading networking configuration list from file %q for %v", list, command)
-		}
-		if len(configureNetworks) > 0 && (cl.Name == "" || !util.StringInSlice(cl.Name, configureNetworks)) {
-			if cl.Name == "" {
-				logrus.Debugf("configuration list in %q has no name, skipping it", list)
-			} else {
-				logrus.Debugf("configuration list in %q has name %q, skipping it", list, cl.Name)
-			}
-			continue
-		}
-		logrus.Debugf("using network configuration list from %q", list)
-		netconf = append(netconf, cl)
-	}
-	// Make sure we can access the container's network namespace,
-	// even after it exits, to successfully tear down the
-	// interfaces.  Ensure this by opening a handle to the network
-	// namespace, and using our copy to both configure and
-	// deconfigure it.
-	netns := fmt.Sprintf("/proc/%d/ns/net", pid)
-	netFD, err := unix.Open(netns, unix.O_RDONLY, 0)
-	if err != nil {
-		return nil, errors.Wrapf(err, "error opening network namespace for %v", command)
-	}
-	mynetns := fmt.Sprintf("/proc/%d/fd/%d", unix.Getpid(), netFD)
-	// Build our search path for the plugins.
-	pluginPaths := strings.Split(options.CNIPluginPath, string(os.PathListSeparator))
-	cni := libcni.CNIConfig{Path: pluginPaths}
-	// Configure the interfaces.
-	rtconf := make(map[*libcni.NetworkConfigList]*libcni.RuntimeConf)
-	teardown = func() {
-		for _, nc := range undo {
-			if err = cni.DelNetworkList(context.Background(), nc, rtconf[nc]); err != nil {
-				logrus.Errorf("error cleaning up network %v for %v: %v", rtconf[nc].IfName, command, err)
-			}
-		}
-		unix.Close(netFD)
-	}
-	for i, nc := range netconf {
-		// Build the runtime config for use with this network configuration.
-		rtconf[nc] = &libcni.RuntimeConf{
-			ContainerID:    containerName,
-			NetNS:          mynetns,
-			IfName:         fmt.Sprintf("if%d", i),
-			Args:           [][2]string{},
-			CapabilityArgs: map[string]interface{}{},
-		}
-		// Bring it up.
-		_, err := cni.AddNetworkList(context.Background(), nc, rtconf[nc])
-		if err != nil {
-			return teardown, errors.Wrapf(err, "error configuring network list %v for %v", rtconf[nc].IfName, command)
-		}
-		// Add it to the list of networks to take down when the container process exits.
-		undo = append([]*libcni.NetworkConfigList{nc}, undo...)
-	}
-	return teardown, nil
-}
-
-func runCopyStdio(stdio *sync.WaitGroup, copyPipes bool, stdioPipe [][]int, copyConsole bool, consoleListener *net.UnixListener, finishCopy []int, finishedCopy chan struct{}, spec *specs.Spec) {
-	defer func() {
-		unix.Close(finishCopy[0])
-		if copyPipes {
-			unix.Close(stdioPipe[unix.Stdin][1])
-			unix.Close(stdioPipe[unix.Stdout][0])
-			unix.Close(stdioPipe[unix.Stderr][0])
-		}
-		stdio.Done()
-		finishedCopy <- struct{}{}
-	}()
-	// Map describing where data on an incoming descriptor should go.
-	relayMap := make(map[int]int)
-	// Map describing incoming and outgoing descriptors.
-	readDesc := make(map[int]string)
-	writeDesc := make(map[int]string)
-	// Buffers.
-	relayBuffer := make(map[int]*bytes.Buffer)
-	// Set up the terminal descriptor or pipes for polling.
-	if copyConsole {
-		// Accept a connection over our listening socket.
-		fd, err := runAcceptTerminal(consoleListener, spec.Process.ConsoleSize)
-		if err != nil {
-			logrus.Errorf("%v", err)
-			return
-		}
-		terminalFD := fd
-		// Input from our stdin, output from the terminal descriptor.
-		relayMap[unix.Stdin] = terminalFD
-		readDesc[unix.Stdin] = "stdin"
-		relayBuffer[terminalFD] = new(bytes.Buffer)
-		writeDesc[terminalFD] = "container terminal input"
-		relayMap[terminalFD] = unix.Stdout
-		readDesc[terminalFD] = "container terminal output"
-		relayBuffer[unix.Stdout] = new(bytes.Buffer)
-		writeDesc[unix.Stdout] = "output"
-		// Set our terminal's mode to raw, to pass handling of special
-		// terminal input to the terminal in the container.
-		if terminal.IsTerminal(unix.Stdin) {
-			if state, err := terminal.MakeRaw(unix.Stdin); err != nil {
-				logrus.Warnf("error setting terminal state: %v", err)
-			} else {
-				defer func() {
-					if err = terminal.Restore(unix.Stdin, state); err != nil {
-						logrus.Errorf("unable to restore terminal state: %v", err)
-					}
-				}()
-			}
-		}
-	}
-	if copyPipes {
-		// Input from our stdin, output from the stdout and stderr pipes.
-		relayMap[unix.Stdin] = stdioPipe[unix.Stdin][1]
-		readDesc[unix.Stdin] = "stdin"
-		relayBuffer[stdioPipe[unix.Stdin][1]] = new(bytes.Buffer)
-		writeDesc[stdioPipe[unix.Stdin][1]] = "container stdin"
-		relayMap[stdioPipe[unix.Stdout][0]] = unix.Stdout
-		readDesc[stdioPipe[unix.Stdout][0]] = "container stdout"
-		relayBuffer[unix.Stdout] = new(bytes.Buffer)
-		writeDesc[unix.Stdout] = "stdout"
-		relayMap[stdioPipe[unix.Stderr][0]] = unix.Stderr
-		readDesc[stdioPipe[unix.Stderr][0]] = "container stderr"
-		relayBuffer[unix.Stderr] = new(bytes.Buffer)
-		writeDesc[unix.Stderr] = "stderr"
-	}
-	// Set our reading descriptors to non-blocking.
-	for rfd, wfd := range relayMap {
-		if err := unix.SetNonblock(rfd, true); err != nil {
-			logrus.Errorf("error setting %s to nonblocking: %v", readDesc[rfd], err)
-			return
-		}
-		if err := unix.SetNonblock(wfd, false); err != nil {
-			logrus.Errorf("error setting descriptor %d (%s) blocking: %v", wfd, writeDesc[wfd], err)
-		}
-	}
-	// Pass data back and forth.
-	pollTimeout := -1
-	for len(relayMap) > 0 {
-		// Start building the list of descriptors to poll.
-		pollFds := make([]unix.PollFd, 0, len(relayMap)+1)
-		// Poll for a notification that we should stop handling stdio.
-		pollFds = append(pollFds, unix.PollFd{Fd: int32(finishCopy[0]), Events: unix.POLLIN | unix.POLLHUP})
-		// Poll on our reading descriptors.
-		for rfd := range relayMap {
-			pollFds = append(pollFds, unix.PollFd{Fd: int32(rfd), Events: unix.POLLIN | unix.POLLHUP})
-		}
-		buf := make([]byte, 8192)
-		// Wait for new data from any input descriptor, or a notification that we're done.
-		_, err := unix.Poll(pollFds, pollTimeout)
-		if !util.LogIfNotRetryable(err, fmt.Sprintf("error waiting for stdio/terminal data to relay: %v", err)) {
-			return
-		}
-		removes := make(map[int]struct{})
-		for _, pollFd := range pollFds {
-			// If this descriptor's just been closed from the other end, mark it for
-			// removal from the set that we're checking for.
-			if pollFd.Revents&unix.POLLHUP == unix.POLLHUP {
-				removes[int(pollFd.Fd)] = struct{}{}
-			}
-			// If the descriptor was closed elsewhere, remove it from our list.
-			if pollFd.Revents&unix.POLLNVAL != 0 {
-				logrus.Debugf("error polling descriptor %s: closed?", readDesc[int(pollFd.Fd)])
-				removes[int(pollFd.Fd)] = struct{}{}
-			}
-			// If the POLLIN flag isn't set, then there's no data to be read from this descriptor.
-			if pollFd.Revents&unix.POLLIN == 0 {
-				// If we're using pipes and it's our stdin and it's closed, close the writing
-				// end of the corresponding pipe.
-				if copyPipes && int(pollFd.Fd) == unix.Stdin && pollFd.Revents&unix.POLLHUP != 0 {
-					unix.Close(stdioPipe[unix.Stdin][1])
-					stdioPipe[unix.Stdin][1] = -1
-				}
-				continue
-			}
-			// Read whatever there is to be read.
-			readFD := int(pollFd.Fd)
-			writeFD, needToRelay := relayMap[readFD]
-			if needToRelay {
-				n, err := unix.Read(readFD, buf)
-				if !util.LogIfNotRetryable(err, fmt.Sprintf("unable to read %s data: %v", readDesc[readFD], err)) {
-					return
-				}
-				// If it's zero-length on our stdin and we're
-				// using pipes, it's an EOF, so close the stdin
-				// pipe's writing end.
-				if n == 0 && copyPipes && int(pollFd.Fd) == unix.Stdin {
-					unix.Close(stdioPipe[unix.Stdin][1])
-					stdioPipe[unix.Stdin][1] = -1
-				}
-				if n > 0 {
-					// Buffer the data in case we get blocked on where they need to go.
-					nwritten, err := relayBuffer[writeFD].Write(buf[:n])
-					if err != nil {
-						logrus.Debugf("buffer: %v", err)
-						continue
-					}
-					if nwritten != n {
-						logrus.Debugf("buffer: expected to buffer %d bytes, wrote %d", n, nwritten)
-						continue
-					}
-					// If this is the last of the data we'll be able to read from this
-					// descriptor, read all that there is to read.
-					for pollFd.Revents&unix.POLLHUP == unix.POLLHUP {
-						nr, err := unix.Read(readFD, buf)
-						util.LogIfUnexpectedWhileDraining(err, fmt.Sprintf("read %s: %v", readDesc[readFD], err))
-						if nr <= 0 {
-							break
-						}
-						nwritten, err := relayBuffer[writeFD].Write(buf[:nr])
-						if err != nil {
-							logrus.Debugf("buffer: %v", err)
-							break
-						}
-						if nwritten != nr {
-							logrus.Debugf("buffer: expected to buffer %d bytes, wrote %d", nr, nwritten)
-							break
-						}
-					}
-				}
-			}
-		}
-		// Try to drain the output buffers.  Set the default timeout
-		// for the next poll() to 100ms if we still have data to write.
-		pollTimeout = -1
-		for writeFD := range relayBuffer {
-			if relayBuffer[writeFD].Len() > 0 {
-				n, err := unix.Write(writeFD, relayBuffer[writeFD].Bytes())
-				if !util.LogIfNotRetryable(err, fmt.Sprintf("unable to write %s data: %v", writeDesc[writeFD], err)) {
-					return
-				}
-				if n > 0 {
-					relayBuffer[writeFD].Next(n)
-				}
-			}
-			if relayBuffer[writeFD].Len() > 0 {
-				pollTimeout = 100
-			}
-		}
-		// Remove any descriptors which we don't need to poll any more from the poll descriptor list.
-		for remove := range removes {
-			delete(relayMap, remove)
-		}
-		// If the we-can-return pipe had anything for us, we're done.
-		for _, pollFd := range pollFds {
-			if int(pollFd.Fd) == finishCopy[0] && pollFd.Revents != 0 {
-				// The pipe is closed, indicating that we can stop now.
-				return
-			}
-		}
-	}
-}
-
-func runAcceptTerminal(consoleListener *net.UnixListener, terminalSize *specs.Box) (int, error) {
-	defer consoleListener.Close()
-	c, err := consoleListener.AcceptUnix()
-	if err != nil {
-		return -1, errors.Wrapf(err, "error accepting socket descriptor connection")
-	}
-	defer c.Close()
-	// Expect a control message over our new connection.
-	b := make([]byte, 8192)
-	oob := make([]byte, 8192)
-	n, oobn, _, _, err := c.ReadMsgUnix(b, oob)
-	if err != nil {
-		return -1, errors.Wrapf(err, "error reading socket descriptor")
-	}
-	if n > 0 {
-		logrus.Debugf("socket descriptor is for %q", string(b[:n]))
-	}
-	if oobn > len(oob) {
-		return -1, errors.Errorf("too much out-of-bounds data (%d bytes)", oobn)
-	}
-	// Parse the control message.
-	scm, err := unix.ParseSocketControlMessage(oob[:oobn])
-	if err != nil {
-		return -1, errors.Wrapf(err, "error parsing out-of-bound data as a socket control message")
-	}
-	logrus.Debugf("control messages: %v", scm)
-	// Expect to get a descriptor.
-	terminalFD := -1
-	for i := range scm {
-		fds, err := unix.ParseUnixRights(&scm[i])
-		if err != nil {
-			return -1, errors.Wrapf(err, "error parsing unix rights control message: %v", &scm[i])
-		}
-		logrus.Debugf("fds: %v", fds)
-		if len(fds) == 0 {
-			continue
-		}
-		terminalFD = fds[0]
-		break
-	}
-	if terminalFD == -1 {
-		return -1, errors.Errorf("unable to read terminal descriptor")
-	}
-	// Set the pseudoterminal's size to the configured size, or our own.
-	winsize := &unix.Winsize{}
-	if terminalSize != nil {
-		// Use configured sizes.
-		winsize.Row = uint16(terminalSize.Height)
-		winsize.Col = uint16(terminalSize.Width)
-	} else {
-		if terminal.IsTerminal(unix.Stdin) {
-			// Use the size of our terminal.
-			if winsize, err = unix.IoctlGetWinsize(unix.Stdin, unix.TIOCGWINSZ); err != nil {
-				logrus.Warnf("error reading size of controlling terminal: %v", err)
-				winsize.Row = 0
-				winsize.Col = 0
-			}
-		}
-	}
-	if winsize.Row != 0 && winsize.Col != 0 {
-		if err = unix.IoctlSetWinsize(terminalFD, unix.TIOCSWINSZ, winsize); err != nil {
-			logrus.Warnf("error setting size of container pseudoterminal: %v", err)
-		}
-		// FIXME - if we're connected to a terminal, we should
-		// be passing the updated terminal size down when we
-		// receive a SIGWINCH.
-	}
-	return terminalFD, nil
-}
-
-// Create pipes to use for relaying stdio.
-func runMakeStdioPipe(uid, gid int) ([][]int, error) {
-	stdioPipe := make([][]int, 3)
-	for i := range stdioPipe {
-		stdioPipe[i] = make([]int, 2)
-		if err := unix.Pipe(stdioPipe[i]); err != nil {
-			return nil, errors.Wrapf(err, "error creating pipe for container FD %d", i)
-		}
-	}
-	if err := unix.Fchown(stdioPipe[unix.Stdin][0], uid, gid); err != nil {
-		return nil, errors.Wrapf(err, "error setting owner of stdin pipe descriptor")
-	}
-	if err := unix.Fchown(stdioPipe[unix.Stdout][1], uid, gid); err != nil {
-		return nil, errors.Wrapf(err, "error setting owner of stdout pipe descriptor")
-	}
-	if err := unix.Fchown(stdioPipe[unix.Stderr][1], uid, gid); err != nil {
-		return nil, errors.Wrapf(err, "error setting owner of stderr pipe descriptor")
-	}
-	return stdioPipe, nil
-}
diff --git a/vendor/github.com/containers/buildah/run_linux.go b/vendor/github.com/containers/buildah/run_linux.go
index a7519a092..8597e3656 100644
--- a/vendor/github.com/containers/buildah/run_linux.go
+++ b/vendor/github.com/containers/buildah/run_linux.go
@@ -3,9 +3,44 @@
 package buildah
 
 import (
+	"bytes"
+	"context"
+	"encoding/json"
 	"fmt"
-	"golang.org/x/sys/unix"
+	"io"
+	"io/ioutil"
+	"net"
 	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strconv"
+	"strings"
+	"sync"
+	"syscall"
+	"time"
+
+	"github.com/containernetworking/cni/libcni"
+	"github.com/containers/buildah/bind"
+	"github.com/containers/buildah/chroot"
+	"github.com/containers/buildah/pkg/secrets"
+	"github.com/containers/buildah/pkg/unshare"
+	"github.com/containers/buildah/util"
+	"github.com/containers/storage/pkg/idtools"
+	"github.com/containers/storage/pkg/ioutils"
+	"github.com/containers/storage/pkg/reexec"
+	"github.com/containers/storage/pkg/stringid"
+	"github.com/docker/go-units"
+	"github.com/docker/libnetwork/resolvconf"
+	"github.com/docker/libnetwork/types"
+	"github.com/opencontainers/go-digest"
+	"github.com/opencontainers/runtime-spec/specs-go"
+	"github.com/opencontainers/runtime-tools/generate"
+	"github.com/opencontainers/selinux/go-selinux/label"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+	"golang.org/x/crypto/ssh/terminal"
+	"golang.org/x/sys/unix"
 )
 
 func setChildProcess() error {
@@ -15,3 +50,1988 @@ func setChildProcess() error {
 	}
 	return nil
 }
+
+// Run runs the specified command in the container's root filesystem.
+func (b *Builder) Run(command []string, options RunOptions) error {
+	p, err := ioutil.TempDir("", Package)
+	if err != nil {
+		return errors.Wrapf(err, "run: error creating temporary directory under %q", os.TempDir())
+	}
+	// On some hosts like AH, /tmp is a symlink and we need an
+	// absolute path.
+	path, err := filepath.EvalSymlinks(p)
+	if err != nil {
+		return errors.Wrapf(err, "run: error evaluating %q for symbolic links", p)
+	}
+	logrus.Debugf("using %q to hold bundle data", path)
+	defer func() {
+		if err2 := os.RemoveAll(path); err2 != nil {
+			logrus.Errorf("error removing %q: %v", path, err2)
+		}
+	}()
+
+	gp, err := generate.New("linux")
+	if err != nil {
+		return errors.Wrapf(err, "error generating new 'linux' runtime spec")
+	}
+	g := &gp
+
+	isolation := options.Isolation
+	if isolation == IsolationDefault {
+		isolation = b.Isolation
+		if isolation == IsolationDefault {
+			isolation = IsolationOCI
+		}
+	}
+	if err := checkAndOverrideIsolationOptions(isolation, &options); err != nil {
+		return err
+	}
+
+	b.configureEnvironment(g, options)
+
+	if b.CommonBuildOpts == nil {
+		return errors.Errorf("Invalid format on container you must recreate the container")
+	}
+
+	if err := addCommonOptsToSpec(b.CommonBuildOpts, g); err != nil {
+		return err
+	}
+
+	if options.WorkingDir != "" {
+		g.SetProcessCwd(options.WorkingDir)
+	} else if b.WorkDir() != "" {
+		g.SetProcessCwd(b.WorkDir())
+	}
+	setupSelinux(g, b.ProcessLabel, b.MountLabel)
+	mountPoint, err := b.Mount(b.MountLabel)
+	if err != nil {
+		return errors.Wrapf(err, "error mounting container %q", b.ContainerID)
+	}
+	defer func() {
+		if err := b.Unmount(); err != nil {
+			logrus.Errorf("error unmounting container: %v", err)
+		}
+	}()
+	g.SetRootPath(mountPoint)
+	if len(command) > 0 {
+		command = runLookupPath(g, command)
+		g.SetProcessArgs(command)
+	} else {
+		g.SetProcessArgs(nil)
+	}
+
+	setupMaskedPaths(g)
+	setupReadOnlyPaths(g)
+
+	setupTerminal(g, options.Terminal, options.TerminalSize)
+
+	configureNetwork, configureNetworks, err := b.configureNamespaces(g, options)
+	if err != nil {
+		return err
+	}
+
+	if err := b.configureUIDGID(g, mountPoint, options); err != nil {
+		return err
+	}
+
+	g.SetProcessApparmorProfile(b.CommonBuildOpts.ApparmorProfile)
+
+	// Now grab the spec from the generator.  Set the generator to nil so that future contributors
+	// will quickly be able to tell that they're supposed to be modifying the spec directly from here.
+	spec := g.Config
+	g = nil
+
+	logrus.Debugf("ensuring working directory %q exists", filepath.Join(mountPoint, spec.Process.Cwd))
+	if err = os.MkdirAll(filepath.Join(mountPoint, spec.Process.Cwd), 0755); err != nil {
+		return errors.Wrapf(err, "error ensuring working directory %q exists", spec.Process.Cwd)
+	}
+
+	// Set the seccomp configuration using the specified profile name.  Some syscalls are
+	// allowed if certain capabilities are to be granted (example: CAP_SYS_CHROOT and chroot),
+	// so we sorted out the capabilities lists first.
+	if err = setupSeccomp(spec, b.CommonBuildOpts.SeccompProfilePath); err != nil {
+		return err
+	}
+
+	// Figure out who owns files that will appear to be owned by UID/GID 0 in the container.
+	rootUID, rootGID, err := util.GetHostRootIDs(spec)
+	if err != nil {
+		return err
+	}
+	rootIDPair := &idtools.IDPair{UID: int(rootUID), GID: int(rootGID)}
+
+	bindFiles := make(map[string]string)
+	namespaceOptions := append(b.NamespaceOptions, options.NamespaceOptions...)
+	volumes := b.Volumes()
+
+	if !contains(volumes, "/etc/hosts") {
+		hostFile, err := b.generateHosts(path, spec.Hostname, b.CommonBuildOpts.AddHost, rootIDPair)
+		if err != nil {
+			return err
+		}
+		bindFiles["/etc/hosts"] = hostFile
+	}
+
+	if !contains(volumes, "/etc/resolv.conf") {
+		resolvFile, err := b.addNetworkConfig(path, "/etc/resolv.conf", rootIDPair, b.CommonBuildOpts.DNSServers, b.CommonBuildOpts.DNSSearch, b.CommonBuildOpts.DNSOptions)
+		if err != nil {
+			return err
+		}
+		bindFiles["/etc/resolv.conf"] = resolvFile
+	}
+
+	err = b.setupMounts(mountPoint, spec, path, options.Mounts, bindFiles, volumes, b.CommonBuildOpts.Volumes, b.CommonBuildOpts.ShmSize, namespaceOptions)
+	if err != nil {
+		return errors.Wrapf(err, "error resolving mountpoints for container %q", b.ContainerID)
+	}
+
+	if options.CNIConfigDir == "" {
+		options.CNIConfigDir = b.CNIConfigDir
+		if b.CNIConfigDir == "" {
+			options.CNIConfigDir = util.DefaultCNIConfigDir
+		}
+	}
+	if options.CNIPluginPath == "" {
+		options.CNIPluginPath = b.CNIPluginPath
+		if b.CNIPluginPath == "" {
+			options.CNIPluginPath = util.DefaultCNIPluginPath
+		}
+	}
+
+	switch isolation {
+	case IsolationOCI:
+		var moreCreateArgs []string
+		if options.NoPivot {
+			moreCreateArgs = []string{"--no-pivot"}
+		} else {
+			moreCreateArgs = nil
+		}
+		err = b.runUsingRuntimeSubproc(isolation, options, configureNetwork, configureNetworks, moreCreateArgs, spec, mountPoint, path, Package+"-"+filepath.Base(path))
+	case IsolationChroot:
+		err = chroot.RunUsingChroot(spec, path, options.Stdin, options.Stdout, options.Stderr)
+	case IsolationOCIRootless:
+		moreCreateArgs := []string{"--no-new-keyring"}
+		if options.NoPivot {
+			moreCreateArgs = append(moreCreateArgs, "--no-pivot")
+		}
+		if err := setupRootlessSpecChanges(spec, path, rootUID, rootGID); err != nil {
+			return err
+		}
+		err = b.runUsingRuntimeSubproc(isolation, options, configureNetwork, configureNetworks, moreCreateArgs, spec, mountPoint, path, Package+"-"+filepath.Base(path))
+	default:
+		err = errors.Errorf("don't know how to run this command")
+	}
+	return err
+}
+
+func addCommonOptsToSpec(commonOpts *CommonBuildOptions, g *generate.Generator) error {
+	// Resources - CPU
+	if commonOpts.CPUPeriod != 0 {
+		g.SetLinuxResourcesCPUPeriod(commonOpts.CPUPeriod)
+	}
+	if commonOpts.CPUQuota != 0 {
+		g.SetLinuxResourcesCPUQuota(commonOpts.CPUQuota)
+	}
+	if commonOpts.CPUShares != 0 {
+		g.SetLinuxResourcesCPUShares(commonOpts.CPUShares)
+	}
+	if commonOpts.CPUSetCPUs != "" {
+		g.SetLinuxResourcesCPUCpus(commonOpts.CPUSetCPUs)
+	}
+	if commonOpts.CPUSetMems != "" {
+		g.SetLinuxResourcesCPUMems(commonOpts.CPUSetMems)
+	}
+
+	// Resources - Memory
+	if commonOpts.Memory != 0 {
+		g.SetLinuxResourcesMemoryLimit(commonOpts.Memory)
+	}
+	if commonOpts.MemorySwap != 0 {
+		g.SetLinuxResourcesMemorySwap(commonOpts.MemorySwap)
+	}
+
+	// cgroup membership
+	if commonOpts.CgroupParent != "" {
+		g.SetLinuxCgroupsPath(commonOpts.CgroupParent)
+	}
+
+	// Other process resource limits
+	if err := addRlimits(commonOpts.Ulimit, g); err != nil {
+		return err
+	}
+
+	logrus.Debugf("Resources: %#v", commonOpts)
+	return nil
+}
+
+func runSetupBuiltinVolumes(mountLabel, mountPoint, containerDir string, copyWithTar func(srcPath, dstPath string) error, builtinVolumes []string, rootUID, rootGID int) ([]specs.Mount, error) {
+	var mounts []specs.Mount
+	hostOwner := idtools.IDPair{UID: rootUID, GID: rootGID}
+	// Add temporary copies of the contents of volume locations at the
+	// volume locations, unless we already have something there.
+	for _, volume := range builtinVolumes {
+		subdir := digest.Canonical.FromString(volume).Hex()
+		volumePath := filepath.Join(containerDir, "buildah-volumes", subdir)
+		srcPath := filepath.Join(mountPoint, volume)
+		initializeVolume := false
+		// If we need to, initialize the volume path's initial contents.
+		if _, err := os.Stat(volumePath); err != nil {
+			if !os.IsNotExist(err) {
+				return nil, errors.Wrapf(err, "failed to stat %q for volume %q", volumePath, volume)
+			}
+			logrus.Debugf("setting up built-in volume at %q", volumePath)
+			if err = os.MkdirAll(volumePath, 0755); err != nil {
+				return nil, errors.Wrapf(err, "error creating directory %q for volume %q", volumePath, volume)
+			}
+			if err = label.Relabel(volumePath, mountLabel, false); err != nil {
+				return nil, errors.Wrapf(err, "error relabeling directory %q for volume %q", volumePath, volume)
+			}
+			initializeVolume = true
+		}
+		stat, err := os.Stat(srcPath)
+		if err != nil {
+			if !os.IsNotExist(err) {
+				return nil, errors.Wrapf(err, "failed to stat %q for volume %q", srcPath, volume)
+			}
+			if err = idtools.MkdirAllAndChownNew(srcPath, 0755, hostOwner); err != nil {
+				return nil, errors.Wrapf(err, "error creating directory %q for volume %q", srcPath, volume)
+			}
+			if stat, err = os.Stat(srcPath); err != nil {
+				return nil, errors.Wrapf(err, "failed to stat %q for volume %q", srcPath, volume)
+			}
+		}
+		if initializeVolume {
+			if err = os.Chmod(volumePath, stat.Mode().Perm()); err != nil {
+				return nil, errors.Wrapf(err, "failed to chmod %q for volume %q", volumePath, volume)
+			}
+			if err = os.Chown(volumePath, int(stat.Sys().(*syscall.Stat_t).Uid), int(stat.Sys().(*syscall.Stat_t).Gid)); err != nil {
+				return nil, errors.Wrapf(err, "error chowning directory %q for volume %q", volumePath, volume)
+			}
+			if err = copyWithTar(srcPath, volumePath); err != nil && !os.IsNotExist(errors.Cause(err)) {
+				return nil, errors.Wrapf(err, "error populating directory %q for volume %q using contents of %q", volumePath, volume, srcPath)
+			}
+		}
+		// Add the bind mount.
+		mounts = append(mounts, specs.Mount{
+			Source:      volumePath,
+			Destination: volume,
+			Type:        "bind",
+			Options:     []string{"bind"},
+		})
+	}
+	return mounts, nil
+}
+
+func (b *Builder) setupMounts(mountPoint string, spec *specs.Spec, bundlePath string, optionMounts []specs.Mount, bindFiles map[string]string, builtinVolumes, volumeMounts []string, shmSize string, namespaceOptions NamespaceOptions) error {
+	// Start building a new list of mounts.
+	var mounts []specs.Mount
+	haveMount := func(destination string) bool {
+		for _, mount := range mounts {
+			if mount.Destination == destination {
+				// Already have something to mount there.
+				return true
+			}
+		}
+		return false
+	}
+
+	ipc := namespaceOptions.Find(string(specs.IPCNamespace))
+	hostIPC := ipc == nil || ipc.Host
+	net := namespaceOptions.Find(string(specs.NetworkNamespace))
+	hostNetwork := net == nil || net.Host
+	user := namespaceOptions.Find(string(specs.UserNamespace))
+	hostUser := user == nil || user.Host
+
+	// Copy mounts from the generated list.
+	mountCgroups := true
+	specMounts := []specs.Mount{}
+	for _, specMount := range spec.Mounts {
+		// Override some of the mounts from the generated list if we're doing different things with namespaces.
+		if specMount.Destination == "/dev/shm" {
+			specMount.Options = []string{"nosuid", "noexec", "nodev", "mode=1777", "size=" + shmSize}
+			if hostIPC && !hostUser {
+				if _, err := os.Stat("/dev/shm"); err != nil && os.IsNotExist(err) {
+					logrus.Debugf("/dev/shm is not present, not binding into container")
+					continue
+				}
+				specMount = specs.Mount{
+					Source:      "/dev/shm",
+					Type:        "bind",
+					Destination: "/dev/shm",
+					Options:     []string{bind.NoBindOption, "rbind", "nosuid", "noexec", "nodev"},
+				}
+			}
+		}
+		if specMount.Destination == "/dev/mqueue" {
+			if hostIPC && !hostUser {
+				if _, err := os.Stat("/dev/mqueue"); err != nil && os.IsNotExist(err) {
+					logrus.Debugf("/dev/mqueue is not present, not binding into container")
+					continue
+				}
+				specMount = specs.Mount{
+					Source:      "/dev/mqueue",
+					Type:        "bind",
+					Destination: "/dev/mqueue",
+					Options:     []string{bind.NoBindOption, "rbind", "nosuid", "noexec", "nodev"},
+				}
+			}
+		}
+		if specMount.Destination == "/sys" {
+			if hostNetwork && !hostUser {
+				mountCgroups = false
+				if _, err := os.Stat("/sys"); err != nil && os.IsNotExist(err) {
+					logrus.Debugf("/sys is not present, not binding into container")
+					continue
+				}
+				specMount = specs.Mount{
+					Source:      "/sys",
+					Type:        "bind",
+					Destination: "/sys",
+					Options:     []string{bind.NoBindOption, "rbind", "nosuid", "noexec", "nodev", "ro"},
+				}
+			}
+		}
+		specMounts = append(specMounts, specMount)
+	}
+
+	// Add a mount for the cgroups filesystem, unless we're already
+	// recursively bind mounting all of /sys, in which case we shouldn't
+	// bother with it.
+	sysfsMount := []specs.Mount{}
+	if mountCgroups {
+		sysfsMount = []specs.Mount{{
+			Destination: "/sys/fs/cgroup",
+			Type:        "cgroup",
+			Source:      "cgroup",
+			Options:     []string{bind.NoBindOption, "nosuid", "noexec", "nodev", "relatime", "ro"},
+		}}
+	}
+
+	// Get the list of files we need to bind into the container.
+	bindFileMounts, err := runSetupBoundFiles(bundlePath, bindFiles)
+	if err != nil {
+		return err
+	}
+
+	// After this point we need to know the per-container persistent storage directory.
+	cdir, err := b.store.ContainerDirectory(b.ContainerID)
+	if err != nil {
+		return errors.Wrapf(err, "error determining work directory for container %q", b.ContainerID)
+	}
+
+	// Figure out which UID and GID to tell the secrets package to use
+	// for files that it creates.
+	rootUID, rootGID, err := util.GetHostRootIDs(spec)
+	if err != nil {
+		return err
+	}
+
+	// Get the list of secrets mounts.
+	secretMounts := secrets.SecretMountsWithUIDGID(b.MountLabel, cdir, b.DefaultMountsFilePath, cdir, int(rootUID), int(rootGID), unshare.IsRootless())
+
+	// Add temporary copies of the contents of volume locations at the
+	// volume locations, unless we already have something there.
+	copyWithTar := b.copyWithTar(nil, nil)
+	builtins, err := runSetupBuiltinVolumes(b.MountLabel, mountPoint, cdir, copyWithTar, builtinVolumes, int(rootUID), int(rootGID))
+	if err != nil {
+		return err
+	}
+
+	// Get the list of explicitly-specified volume mounts.
+	volumes, err := runSetupVolumeMounts(spec.Linux.MountLabel, volumeMounts, optionMounts)
+	if err != nil {
+		return err
+	}
+
+	// Add them all, in the preferred order, except where they conflict with something that was previously added.
+	for _, mount := range append(append(append(append(append(volumes, builtins...), secretMounts...), bindFileMounts...), specMounts...), sysfsMount...) {
+		if haveMount(mount.Destination) {
+			// Already mounting something there, no need to bother with this one.
+			continue
+		}
+		// Add the mount.
+		mounts = append(mounts, mount)
+	}
+
+	// Set the list in the spec.
+	spec.Mounts = mounts
+	return nil
+}
+
+// addNetworkConfig copies files from host and sets them up to bind mount into container
+func (b *Builder) addNetworkConfig(rdir, hostPath string, chownOpts *idtools.IDPair, dnsServers, dnsSearch, dnsOptions []string) (string, error) {
+	stat, err := os.Stat(hostPath)
+	if err != nil {
+		return "", errors.Wrapf(err, "error statting %q for container %q", hostPath, b.ContainerID)
+	}
+	contents, err := ioutil.ReadFile(hostPath)
+	if err != nil {
+		return "", errors.Wrapf(err, "unable to read %s", hostPath)
+	}
+
+	search := resolvconf.GetSearchDomains(contents)
+	nameservers := resolvconf.GetNameservers(contents, types.IP)
+	options := resolvconf.GetOptions(contents)
+
+	if len(dnsSearch) > 0 {
+		search = dnsSearch
+	}
+	if len(dnsServers) != 0 {
+		dns, err := getDNSIP(dnsServers)
+		if err != nil {
+			return "", errors.Wrapf(err, "error getting dns servers")
+		}
+		nameservers = []string{}
+		for _, server := range dns {
+			nameservers = append(nameservers, server.String())
+		}
+	}
+
+	if len(dnsOptions) != 0 {
+		options = dnsOptions
+	}
+
+	cfile := filepath.Join(rdir, filepath.Base(hostPath))
+	if _, err = resolvconf.Build(cfile, nameservers, search, options); err != nil {
+		return "", errors.Wrapf(err, "error building resolv.conf for container %s", b.ContainerID)
+	}
+
+	uid := int(stat.Sys().(*syscall.Stat_t).Uid)
+	gid := int(stat.Sys().(*syscall.Stat_t).Gid)
+	if chownOpts != nil {
+		uid = chownOpts.UID
+		gid = chownOpts.GID
+	}
+	if err = os.Chown(cfile, uid, gid); err != nil {
+		return "", errors.Wrapf(err, "error chowning file %q for container %q", cfile, b.ContainerID)
+	}
+
+	if err := label.Relabel(cfile, b.MountLabel, false); err != nil {
+		return "", errors.Wrapf(err, "error relabeling %q in container %q", cfile, b.ContainerID)
+	}
+
+	return cfile, nil
+}
+
+// generateHosts creates a containers hosts file
+func (b *Builder) generateHosts(rdir, hostname string, addHosts []string, chownOpts *idtools.IDPair) (string, error) {
+	hostPath := "/etc/hosts"
+	stat, err := os.Stat(hostPath)
+	if err != nil {
+		return "", errors.Wrapf(err, "error statting %q for container %q", hostPath, b.ContainerID)
+	}
+
+	hosts := bytes.NewBufferString("# Generated by Buildah\n")
+	orig, err := ioutil.ReadFile(hostPath)
+	if err != nil {
+		return "", errors.Wrapf(err, "unable to read %s", hostPath)
+	}
+	hosts.Write(orig)
+	for _, host := range addHosts {
+		// verify the host format
+		values := strings.SplitN(host, ":", 2)
+		if len(values) != 2 {
+			return "", errors.Errorf("unable to parse host entry %q: incorrect format", host)
+		}
+		if values[0] == "" {
+			return "", errors.Errorf("hostname in host entry %q is empty", host)
+		}
+		if values[1] == "" {
+			return "", errors.Errorf("IP address in host entry %q is empty", host)
+		}
+		hosts.Write([]byte(fmt.Sprintf("%s\t%s\n", values[1], values[0])))
+	}
+
+	if hostname != "" {
+		hosts.Write([]byte(fmt.Sprintf("127.0.0.1   %s\n", hostname)))
+		hosts.Write([]byte(fmt.Sprintf("::1         %s\n", hostname)))
+	}
+	cfile := filepath.Join(rdir, filepath.Base(hostPath))
+	if err = ioutils.AtomicWriteFile(cfile, hosts.Bytes(), stat.Mode().Perm()); err != nil {
+		return "", errors.Wrapf(err, "error writing /etc/hosts into the container")
+	}
+	uid := int(stat.Sys().(*syscall.Stat_t).Uid)
+	gid := int(stat.Sys().(*syscall.Stat_t).Gid)
+	if chownOpts != nil {
+		uid = chownOpts.UID
+		gid = chownOpts.GID
+	}
+	if err = os.Chown(cfile, uid, gid); err != nil {
+		return "", errors.Wrapf(err, "error chowning file %q for container %q", cfile, b.ContainerID)
+	}
+	if err := label.Relabel(cfile, b.MountLabel, false); err != nil {
+		return "", errors.Wrapf(err, "error relabeling %q in container %q", cfile, b.ContainerID)
+	}
+
+	return cfile, nil
+}
+
+func setupTerminal(g *generate.Generator, terminalPolicy TerminalPolicy, terminalSize *specs.Box) {
+	switch terminalPolicy {
+	case DefaultTerminal:
+		onTerminal := terminal.IsTerminal(unix.Stdin) && terminal.IsTerminal(unix.Stdout) && terminal.IsTerminal(unix.Stderr)
+		if onTerminal {
+			logrus.Debugf("stdio is a terminal, defaulting to using a terminal")
+		} else {
+			logrus.Debugf("stdio is not a terminal, defaulting to not using a terminal")
+		}
+		g.SetProcessTerminal(onTerminal)
+	case WithTerminal:
+		g.SetProcessTerminal(true)
+	case WithoutTerminal:
+		g.SetProcessTerminal(false)
+	}
+	if terminalSize != nil {
+		g.SetProcessConsoleSize(terminalSize.Width, terminalSize.Height)
+	}
+}
+
+func runUsingRuntime(isolation Isolation, options RunOptions, configureNetwork bool, configureNetworks, moreCreateArgs []string, spec *specs.Spec, rootPath, bundlePath, containerName string) (wstatus unix.WaitStatus, err error) {
+	// Lock the caller to a single OS-level thread.
+	runtime.LockOSThread()
+
+	// Set up bind mounts for things that a namespaced user might not be able to get to directly.
+	unmountAll, err := bind.SetupIntermediateMountNamespace(spec, bundlePath)
+	if unmountAll != nil {
+		defer func() {
+			if err := unmountAll(); err != nil {
+				logrus.Error(err)
+			}
+		}()
+	}
+	if err != nil {
+		return 1, err
+	}
+
+	// Write the runtime configuration.
+	specbytes, err := json.Marshal(spec)
+	if err != nil {
+		return 1, errors.Wrapf(err, "error encoding configuration %#v as json", spec)
+	}
+	if err = ioutils.AtomicWriteFile(filepath.Join(bundlePath, "config.json"), specbytes, 0600); err != nil {
+		return 1, errors.Wrapf(err, "error storing runtime configuration in %q", filepath.Join(bundlePath, "config.json"))
+	}
+
+	logrus.Debugf("config = %v", string(specbytes))
+
+	// Decide which runtime to use.
+	runtime := options.Runtime
+	if runtime == "" {
+		runtime = util.Runtime()
+	}
+
+	// Default to just passing down our stdio.
+	getCreateStdio := func() (io.ReadCloser, io.WriteCloser, io.WriteCloser) {
+		return os.Stdin, os.Stdout, os.Stderr
+	}
+
+	// Figure out how we're doing stdio handling, and create pipes and sockets.
+	var stdio sync.WaitGroup
+	var consoleListener *net.UnixListener
+	var errorFds, closeBeforeReadingErrorFds []int
+	stdioPipe := make([][]int, 3)
+	copyConsole := false
+	copyPipes := false
+	finishCopy := make([]int, 2)
+	if err = unix.Pipe(finishCopy); err != nil {
+		return 1, errors.Wrapf(err, "error creating pipe for notifying to stop stdio")
+	}
+	finishedCopy := make(chan struct{})
+	if spec.Process != nil {
+		if spec.Process.Terminal {
+			copyConsole = true
+			// Create a listening socket for accepting the container's terminal's PTY master.
+			socketPath := filepath.Join(bundlePath, "console.sock")
+			consoleListener, err = net.ListenUnix("unix", &net.UnixAddr{Name: socketPath, Net: "unix"})
+			if err != nil {
+				return 1, errors.Wrapf(err, "error creating socket %q to receive terminal descriptor", consoleListener.Addr())
+			}
+			// Add console socket arguments.
+			moreCreateArgs = append(moreCreateArgs, "--console-socket", socketPath)
+		} else {
+			copyPipes = true
+			// Figure out who should own the pipes.
+			uid, gid, err := util.GetHostRootIDs(spec)
+			if err != nil {
+				return 1, err
+			}
+			// Create stdio pipes.
+			if stdioPipe, err = runMakeStdioPipe(int(uid), int(gid)); err != nil {
+				return 1, err
+			}
+			errorFds = []int{stdioPipe[unix.Stdout][0], stdioPipe[unix.Stderr][0]}
+			closeBeforeReadingErrorFds = []int{stdioPipe[unix.Stdout][1], stdioPipe[unix.Stderr][1]}
+			// Set stdio to our pipes.
+			getCreateStdio = func() (io.ReadCloser, io.WriteCloser, io.WriteCloser) {
+				stdin := os.NewFile(uintptr(stdioPipe[unix.Stdin][0]), "/dev/stdin")
+				stdout := os.NewFile(uintptr(stdioPipe[unix.Stdout][1]), "/dev/stdout")
+				stderr := os.NewFile(uintptr(stdioPipe[unix.Stderr][1]), "/dev/stderr")
+				return stdin, stdout, stderr
+			}
+		}
+	} else {
+		if options.Quiet {
+			// Discard stdout.
+			getCreateStdio = func() (io.ReadCloser, io.WriteCloser, io.WriteCloser) {
+				return os.Stdin, nil, os.Stderr
+			}
+		}
+	}
+
+	// Build the commands that we'll execute.
+	pidFile := filepath.Join(bundlePath, "pid")
+	args := append(append(append(options.Args, "create", "--bundle", bundlePath, "--pid-file", pidFile), moreCreateArgs...), containerName)
+	create := exec.Command(runtime, args...)
+	create.Dir = bundlePath
+	stdin, stdout, stderr := getCreateStdio()
+	create.Stdin, create.Stdout, create.Stderr = stdin, stdout, stderr
+	if create.SysProcAttr == nil {
+		create.SysProcAttr = &syscall.SysProcAttr{}
+	}
+
+	args = append(options.Args, "start", containerName)
+	start := exec.Command(runtime, args...)
+	start.Dir = bundlePath
+	start.Stderr = os.Stderr
+
+	args = append(options.Args, "kill", containerName)
+	kill := exec.Command(runtime, args...)
+	kill.Dir = bundlePath
+	kill.Stderr = os.Stderr
+
+	args = append(options.Args, "delete", containerName)
+	del := exec.Command(runtime, args...)
+	del.Dir = bundlePath
+	del.Stderr = os.Stderr
+
+	// Actually create the container.
+	logrus.Debugf("Running %q", create.Args)
+	err = create.Run()
+	if err != nil {
+		return 1, errors.Wrapf(err, "error creating container for %v: %s", spec.Process.Args, runCollectOutput(errorFds, closeBeforeReadingErrorFds))
+	}
+	defer func() {
+		err2 := del.Run()
+		if err2 != nil {
+			if err == nil {
+				err = errors.Wrapf(err2, "error deleting container")
+			} else {
+				logrus.Infof("error deleting container: %v", err2)
+			}
+		}
+	}()
+
+	// Make sure we read the container's exit status when it exits.
+	pidValue, err := ioutil.ReadFile(pidFile)
+	if err != nil {
+		return 1, errors.Wrapf(err, "error reading pid from %q", pidFile)
+	}
+	pid, err := strconv.Atoi(strings.TrimSpace(string(pidValue)))
+	if err != nil {
+		return 1, errors.Wrapf(err, "error parsing pid %s as a number", string(pidValue))
+	}
+	var reaping sync.WaitGroup
+	reaping.Add(1)
+	go func() {
+		defer reaping.Done()
+		var err error
+		_, err = unix.Wait4(pid, &wstatus, 0, nil)
+		if err != nil {
+			wstatus = 0
+			logrus.Errorf("error waiting for container child process %d: %v\n", pid, err)
+		}
+	}()
+
+	if configureNetwork {
+		teardown, err := runConfigureNetwork(isolation, options, configureNetworks, pid, containerName, spec.Process.Args)
+		if teardown != nil {
+			defer teardown()
+		}
+		if err != nil {
+			return 1, err
+		}
+	}
+
+	if copyPipes {
+		// We don't need the ends of the pipes that belong to the container.
+		stdin.Close()
+		if stdout != nil {
+			stdout.Close()
+		}
+		stderr.Close()
+	}
+
+	// Handle stdio for the container in the background.
+	stdio.Add(1)
+	go runCopyStdio(&stdio, copyPipes, stdioPipe, copyConsole, consoleListener, finishCopy, finishedCopy, spec)
+
+	// Start the container.
+	logrus.Debugf("Running %q", start.Args)
+	err = start.Run()
+	if err != nil {
+		return 1, errors.Wrapf(err, "error starting container")
+	}
+	stopped := false
+	defer func() {
+		if !stopped {
+			err2 := kill.Run()
+			if err2 != nil {
+				if err == nil {
+					err = errors.Wrapf(err2, "error stopping container")
+				} else {
+					logrus.Infof("error stopping container: %v", err2)
+				}
+			}
+		}
+	}()
+
+	// Wait for the container to exit.
+	for {
+		now := time.Now()
+		var state specs.State
+		args = append(options.Args, "state", containerName)
+		stat := exec.Command(runtime, args...)
+		stat.Dir = bundlePath
+		stat.Stderr = os.Stderr
+		stateOutput, stateErr := stat.Output()
+		if stateErr != nil {
+			return 1, errors.Wrapf(stateErr, "error reading container state")
+		}
+		if err = json.Unmarshal(stateOutput, &state); err != nil {
+			return 1, errors.Wrapf(stateErr, "error parsing container state %q", string(stateOutput))
+		}
+		switch state.Status {
+		case "running":
+		case "stopped":
+			stopped = true
+		default:
+			return 1, errors.Errorf("container status unexpectedly changed to %q", state.Status)
+		}
+		if stopped {
+			break
+		}
+		select {
+		case <-finishedCopy:
+			stopped = true
+		case <-time.After(time.Until(now.Add(100 * time.Millisecond))):
+			continue
+		}
+		if stopped {
+			break
+		}
+	}
+
+	// Close the writing end of the stop-handling-stdio notification pipe.
+	unix.Close(finishCopy[1])
+	// Wait for the stdio copy goroutine to flush.
+	stdio.Wait()
+	// Wait until we finish reading the exit status.
+	reaping.Wait()
+
+	return wstatus, nil
+}
+
+func runCollectOutput(fds, closeBeforeReadingFds []int) string {
+	for _, fd := range closeBeforeReadingFds {
+		unix.Close(fd)
+	}
+	var b bytes.Buffer
+	buf := make([]byte, 8192)
+	for _, fd := range fds {
+		nread, err := unix.Read(fd, buf)
+		if err != nil {
+			if errno, isErrno := err.(syscall.Errno); isErrno {
+				switch errno {
+				default:
+					logrus.Errorf("error reading from pipe %d: %v", fd, err)
+				case syscall.EINTR, syscall.EAGAIN:
+				}
+			} else {
+				logrus.Errorf("unable to wait for data from pipe %d: %v", fd, err)
+			}
+			continue
+		}
+		for nread > 0 {
+			r := buf[:nread]
+			if nwritten, err := b.Write(r); err != nil || nwritten != len(r) {
+				if nwritten != len(r) {
+					logrus.Errorf("error buffering data from pipe %d: %v", fd, err)
+					break
+				}
+			}
+			nread, err = unix.Read(fd, buf)
+			if err != nil {
+				if errno, isErrno := err.(syscall.Errno); isErrno {
+					switch errno {
+					default:
+						logrus.Errorf("error reading from pipe %d: %v", fd, err)
+					case syscall.EINTR, syscall.EAGAIN:
+					}
+				} else {
+					logrus.Errorf("unable to wait for data from pipe %d: %v", fd, err)
+				}
+				break
+			}
+		}
+	}
+	return b.String()
+}
+
+func setupRootlessNetwork(pid int) (teardown func(), err error) {
+	slirp4netns, err := exec.LookPath("slirp4netns")
+	if err != nil {
+		return nil, errors.Wrapf(err, "cannot find slirp4netns")
+	}
+
+	rootlessSlirpSyncR, rootlessSlirpSyncW, err := os.Pipe()
+	if err != nil {
+		return nil, errors.Wrapf(err, "cannot create slirp4netns sync pipe")
+	}
+	defer rootlessSlirpSyncR.Close()
+
+	// Be sure there are no fds inherited to slirp4netns except the sync pipe
+	files, err := ioutil.ReadDir("/proc/self/fd")
+	if err != nil {
+		return nil, errors.Wrapf(err, "cannot list open fds")
+	}
+	for _, f := range files {
+		fd, err := strconv.Atoi(f.Name())
+		if err != nil {
+			return nil, errors.Wrapf(err, "cannot parse fd")
+		}
+		if fd == int(rootlessSlirpSyncW.Fd()) {
+			continue
+		}
+		unix.CloseOnExec(fd)
+	}
+
+	cmd := exec.Command(slirp4netns, "--mtu", "65520", "-r", "3", "-c", fmt.Sprintf("%d", pid), "tap0")
+	cmd.Stdin, cmd.Stdout, cmd.Stderr = nil, nil, nil
+	cmd.ExtraFiles = []*os.File{rootlessSlirpSyncW}
+
+	err = cmd.Start()
+	rootlessSlirpSyncW.Close()
+	if err != nil {
+		return nil, errors.Wrapf(err, "cannot start slirp4netns")
+	}
+
+	b := make([]byte, 1)
+	for {
+		if err := rootlessSlirpSyncR.SetDeadline(time.Now().Add(1 * time.Second)); err != nil {
+			return nil, errors.Wrapf(err, "error setting slirp4netns pipe timeout")
+		}
+		if _, err := rootlessSlirpSyncR.Read(b); err == nil {
+			break
+		} else {
+			if os.IsTimeout(err) {
+				// Check if the process is still running.
+				var status syscall.WaitStatus
+				_, err := syscall.Wait4(cmd.Process.Pid, &status, syscall.WNOHANG, nil)
+				if err != nil {
+					return nil, errors.Wrapf(err, "failed to read slirp4netns process status")
+				}
+				if status.Exited() || status.Signaled() {
+					return nil, errors.New("slirp4netns failed")
+				}
+
+				continue
+			}
+			return nil, errors.Wrapf(err, "failed to read from slirp4netns sync pipe")
+		}
+	}
+
+	return func() {
+		cmd.Process.Kill()
+		cmd.Wait()
+	}, nil
+}
+
+func runConfigureNetwork(isolation Isolation, options RunOptions, configureNetworks []string, pid int, containerName string, command []string) (teardown func(), err error) {
+	var netconf, undo []*libcni.NetworkConfigList
+
+	if isolation == IsolationOCIRootless {
+		if ns := options.NamespaceOptions.Find(string(specs.NetworkNamespace)); ns != nil && !ns.Host && ns.Path == "" {
+			return setupRootlessNetwork(pid)
+		}
+	}
+	// Scan for CNI configuration files.
+	confdir := options.CNIConfigDir
+	files, err := libcni.ConfFiles(confdir, []string{".conf"})
+	if err != nil {
+		return nil, errors.Wrapf(err, "error finding CNI networking configuration files named *.conf in directory %q", confdir)
+	}
+	lists, err := libcni.ConfFiles(confdir, []string{".conflist"})
+	if err != nil {
+		return nil, errors.Wrapf(err, "error finding CNI networking configuration list files named *.conflist in directory %q", confdir)
+	}
+	logrus.Debugf("CNI network configuration file list: %#v", append(files, lists...))
+	// Read the CNI configuration files.
+	for _, file := range files {
+		nc, err := libcni.ConfFromFile(file)
+		if err != nil {
+			return nil, errors.Wrapf(err, "error loading networking configuration from file %q for %v", file, command)
+		}
+		if len(configureNetworks) > 0 && nc.Network != nil && (nc.Network.Name == "" || !util.StringInSlice(nc.Network.Name, configureNetworks)) {
+			if nc.Network.Name == "" {
+				logrus.Debugf("configuration in %q has no name, skipping it", file)
+			} else {
+				logrus.Debugf("configuration in %q has name %q, skipping it", file, nc.Network.Name)
+			}
+			continue
+		}
+		cl, err := libcni.ConfListFromConf(nc)
+		if err != nil {
+			return nil, errors.Wrapf(err, "error converting networking configuration from file %q for %v", file, command)
+		}
+		logrus.Debugf("using network configuration from %q", file)
+		netconf = append(netconf, cl)
+	}
+	for _, list := range lists {
+		cl, err := libcni.ConfListFromFile(list)
+		if err != nil {
+			return nil, errors.Wrapf(err, "error loading networking configuration list from file %q for %v", list, command)
+		}
+		if len(configureNetworks) > 0 && (cl.Name == "" || !util.StringInSlice(cl.Name, configureNetworks)) {
+			if cl.Name == "" {
+				logrus.Debugf("configuration list in %q has no name, skipping it", list)
+			} else {
+				logrus.Debugf("configuration list in %q has name %q, skipping it", list, cl.Name)
+			}
+			continue
+		}
+		logrus.Debugf("using network configuration list from %q", list)
+		netconf = append(netconf, cl)
+	}
+	// Make sure we can access the container's network namespace,
+	// even after it exits, to successfully tear down the
+	// interfaces.  Ensure this by opening a handle to the network
+	// namespace, and using our copy to both configure and
+	// deconfigure it.
+	netns := fmt.Sprintf("/proc/%d/ns/net", pid)
+	netFD, err := unix.Open(netns, unix.O_RDONLY, 0)
+	if err != nil {
+		return nil, errors.Wrapf(err, "error opening network namespace for %v", command)
+	}
+	mynetns := fmt.Sprintf("/proc/%d/fd/%d", unix.Getpid(), netFD)
+	// Build our search path for the plugins.
+	pluginPaths := strings.Split(options.CNIPluginPath, string(os.PathListSeparator))
+	cni := libcni.CNIConfig{Path: pluginPaths}
+	// Configure the interfaces.
+	rtconf := make(map[*libcni.NetworkConfigList]*libcni.RuntimeConf)
+	teardown = func() {
+		for _, nc := range undo {
+			if err = cni.DelNetworkList(context.Background(), nc, rtconf[nc]); err != nil {
+				logrus.Errorf("error cleaning up network %v for %v: %v", rtconf[nc].IfName, command, err)
+			}
+		}
+		unix.Close(netFD)
+	}
+	for i, nc := range netconf {
+		// Build the runtime config for use with this network configuration.
+		rtconf[nc] = &libcni.RuntimeConf{
+			ContainerID:    containerName,
+			NetNS:          mynetns,
+			IfName:         fmt.Sprintf("if%d", i),
+			Args:           [][2]string{},
+			CapabilityArgs: map[string]interface{}{},
+		}
+		// Bring it up.
+		_, err := cni.AddNetworkList(context.Background(), nc, rtconf[nc])
+		if err != nil {
+			return teardown, errors.Wrapf(err, "error configuring network list %v for %v", rtconf[nc].IfName, command)
+		}
+		// Add it to the list of networks to take down when the container process exits.
+		undo = append([]*libcni.NetworkConfigList{nc}, undo...)
+	}
+	return teardown, nil
+}
+
+func runCopyStdio(stdio *sync.WaitGroup, copyPipes bool, stdioPipe [][]int, copyConsole bool, consoleListener *net.UnixListener, finishCopy []int, finishedCopy chan struct{}, spec *specs.Spec) {
+	defer func() {
+		unix.Close(finishCopy[0])
+		if copyPipes {
+			unix.Close(stdioPipe[unix.Stdin][1])
+			unix.Close(stdioPipe[unix.Stdout][0])
+			unix.Close(stdioPipe[unix.Stderr][0])
+		}
+		stdio.Done()
+		finishedCopy <- struct{}{}
+	}()
+	// Map describing where data on an incoming descriptor should go.
+	relayMap := make(map[int]int)
+	// Map describing incoming and outgoing descriptors.
+	readDesc := make(map[int]string)
+	writeDesc := make(map[int]string)
+	// Buffers.
+	relayBuffer := make(map[int]*bytes.Buffer)
+	// Set up the terminal descriptor or pipes for polling.
+	if copyConsole {
+		// Accept a connection over our listening socket.
+		fd, err := runAcceptTerminal(consoleListener, spec.Process.ConsoleSize)
+		if err != nil {
+			logrus.Errorf("%v", err)
+			return
+		}
+		terminalFD := fd
+		// Input from our stdin, output from the terminal descriptor.
+		relayMap[unix.Stdin] = terminalFD
+		readDesc[unix.Stdin] = "stdin"
+		relayBuffer[terminalFD] = new(bytes.Buffer)
+		writeDesc[terminalFD] = "container terminal input"
+		relayMap[terminalFD] = unix.Stdout
+		readDesc[terminalFD] = "container terminal output"
+		relayBuffer[unix.Stdout] = new(bytes.Buffer)
+		writeDesc[unix.Stdout] = "output"
+		// Set our terminal's mode to raw, to pass handling of special
+		// terminal input to the terminal in the container.
+		if terminal.IsTerminal(unix.Stdin) {
+			if state, err := terminal.MakeRaw(unix.Stdin); err != nil {
+				logrus.Warnf("error setting terminal state: %v", err)
+			} else {
+				defer func() {
+					if err = terminal.Restore(unix.Stdin, state); err != nil {
+						logrus.Errorf("unable to restore terminal state: %v", err)
+					}
+				}()
+			}
+		}
+	}
+	if copyPipes {
+		// Input from our stdin, output from the stdout and stderr pipes.
+		relayMap[unix.Stdin] = stdioPipe[unix.Stdin][1]
+		readDesc[unix.Stdin] = "stdin"
+		relayBuffer[stdioPipe[unix.Stdin][1]] = new(bytes.Buffer)
+		writeDesc[stdioPipe[unix.Stdin][1]] = "container stdin"
+		relayMap[stdioPipe[unix.Stdout][0]] = unix.Stdout
+		readDesc[stdioPipe[unix.Stdout][0]] = "container stdout"
+		relayBuffer[unix.Stdout] = new(bytes.Buffer)
+		writeDesc[unix.Stdout] = "stdout"
+		relayMap[stdioPipe[unix.Stderr][0]] = unix.Stderr
+		readDesc[stdioPipe[unix.Stderr][0]] = "container stderr"
+		relayBuffer[unix.Stderr] = new(bytes.Buffer)
+		writeDesc[unix.Stderr] = "stderr"
+	}
+	// Set our reading descriptors to non-blocking.
+	for rfd, wfd := range relayMap {
+		if err := unix.SetNonblock(rfd, true); err != nil {
+			logrus.Errorf("error setting %s to nonblocking: %v", readDesc[rfd], err)
+			return
+		}
+		if err := unix.SetNonblock(wfd, false); err != nil {
+			logrus.Errorf("error setting descriptor %d (%s) blocking: %v", wfd, writeDesc[wfd], err)
+		}
+	}
+	// Pass data back and forth.
+	pollTimeout := -1
+	for len(relayMap) > 0 {
+		// Start building the list of descriptors to poll.
+		pollFds := make([]unix.PollFd, 0, len(relayMap)+1)
+		// Poll for a notification that we should stop handling stdio.
+		pollFds = append(pollFds, unix.PollFd{Fd: int32(finishCopy[0]), Events: unix.POLLIN | unix.POLLHUP})
+		// Poll on our reading descriptors.
+		for rfd := range relayMap {
+			pollFds = append(pollFds, unix.PollFd{Fd: int32(rfd), Events: unix.POLLIN | unix.POLLHUP})
+		}
+		buf := make([]byte, 8192)
+		// Wait for new data from any input descriptor, or a notification that we're done.
+		_, err := unix.Poll(pollFds, pollTimeout)
+		if !util.LogIfNotRetryable(err, fmt.Sprintf("error waiting for stdio/terminal data to relay: %v", err)) {
+			return
+		}
+		removes := make(map[int]struct{})
+		for _, pollFd := range pollFds {
+			// If this descriptor's just been closed from the other end, mark it for
+			// removal from the set that we're checking for.
+			if pollFd.Revents&unix.POLLHUP == unix.POLLHUP {
+				removes[int(pollFd.Fd)] = struct{}{}
+			}
+			// If the descriptor was closed elsewhere, remove it from our list.
+			if pollFd.Revents&unix.POLLNVAL != 0 {
+				logrus.Debugf("error polling descriptor %s: closed?", readDesc[int(pollFd.Fd)])
+				removes[int(pollFd.Fd)] = struct{}{}
+			}
+			// If the POLLIN flag isn't set, then there's no data to be read from this descriptor.
+			if pollFd.Revents&unix.POLLIN == 0 {
+				// If we're using pipes and it's our stdin and it's closed, close the writing
+				// end of the corresponding pipe.
+				if copyPipes && int(pollFd.Fd) == unix.Stdin && pollFd.Revents&unix.POLLHUP != 0 {
+					unix.Close(stdioPipe[unix.Stdin][1])
+					stdioPipe[unix.Stdin][1] = -1
+				}
+				continue
+			}
+			// Read whatever there is to be read.
+			readFD := int(pollFd.Fd)
+			writeFD, needToRelay := relayMap[readFD]
+			if needToRelay {
+				n, err := unix.Read(readFD, buf)
+				if !util.LogIfNotRetryable(err, fmt.Sprintf("unable to read %s data: %v", readDesc[readFD], err)) {
+					return
+				}
+				// If it's zero-length on our stdin and we're
+				// using pipes, it's an EOF, so close the stdin
+				// pipe's writing end.
+				if n == 0 && copyPipes && int(pollFd.Fd) == unix.Stdin {
+					unix.Close(stdioPipe[unix.Stdin][1])
+					stdioPipe[unix.Stdin][1] = -1
+				}
+				if n > 0 {
+					// Buffer the data in case we get blocked on where they need to go.
+					nwritten, err := relayBuffer[writeFD].Write(buf[:n])
+					if err != nil {
+						logrus.Debugf("buffer: %v", err)
+						continue
+					}
+					if nwritten != n {
+						logrus.Debugf("buffer: expected to buffer %d bytes, wrote %d", n, nwritten)
+						continue
+					}
+					// If this is the last of the data we'll be able to read from this
+					// descriptor, read all that there is to read.
+					for pollFd.Revents&unix.POLLHUP == unix.POLLHUP {
+						nr, err := unix.Read(readFD, buf)
+						util.LogIfUnexpectedWhileDraining(err, fmt.Sprintf("read %s: %v", readDesc[readFD], err))
+						if nr <= 0 {
+							break
+						}
+						nwritten, err := relayBuffer[writeFD].Write(buf[:nr])
+						if err != nil {
+							logrus.Debugf("buffer: %v", err)
+							break
+						}
+						if nwritten != nr {
+							logrus.Debugf("buffer: expected to buffer %d bytes, wrote %d", nr, nwritten)
+							break
+						}
+					}
+				}
+			}
+		}
+		// Try to drain the output buffers.  Set the default timeout
+		// for the next poll() to 100ms if we still have data to write.
+		pollTimeout = -1
+		for writeFD := range relayBuffer {
+			if relayBuffer[writeFD].Len() > 0 {
+				n, err := unix.Write(writeFD, relayBuffer[writeFD].Bytes())
+				if !util.LogIfNotRetryable(err, fmt.Sprintf("unable to write %s data: %v", writeDesc[writeFD], err)) {
+					return
+				}
+				if n > 0 {
+					relayBuffer[writeFD].Next(n)
+				}
+			}
+			if relayBuffer[writeFD].Len() > 0 {
+				pollTimeout = 100
+			}
+		}
+		// Remove any descriptors which we don't need to poll any more from the poll descriptor list.
+		for remove := range removes {
+			delete(relayMap, remove)
+		}
+		// If the we-can-return pipe had anything for us, we're done.
+		for _, pollFd := range pollFds {
+			if int(pollFd.Fd) == finishCopy[0] && pollFd.Revents != 0 {
+				// The pipe is closed, indicating that we can stop now.
+				return
+			}
+		}
+	}
+}
+
+func runAcceptTerminal(consoleListener *net.UnixListener, terminalSize *specs.Box) (int, error) {
+	defer consoleListener.Close()
+	c, err := consoleListener.AcceptUnix()
+	if err != nil {
+		return -1, errors.Wrapf(err, "error accepting socket descriptor connection")
+	}
+	defer c.Close()
+	// Expect a control message over our new connection.
+	b := make([]byte, 8192)
+	oob := make([]byte, 8192)
+	n, oobn, _, _, err := c.ReadMsgUnix(b, oob)
+	if err != nil {
+		return -1, errors.Wrapf(err, "error reading socket descriptor")
+	}
+	if n > 0 {
+		logrus.Debugf("socket descriptor is for %q", string(b[:n]))
+	}
+	if oobn > len(oob) {
+		return -1, errors.Errorf("too much out-of-bounds data (%d bytes)", oobn)
+	}
+	// Parse the control message.
+	scm, err := unix.ParseSocketControlMessage(oob[:oobn])
+	if err != nil {
+		return -1, errors.Wrapf(err, "error parsing out-of-bound data as a socket control message")
+	}
+	logrus.Debugf("control messages: %v", scm)
+	// Expect to get a descriptor.
+	terminalFD := -1
+	for i := range scm {
+		fds, err := unix.ParseUnixRights(&scm[i])
+		if err != nil {
+			return -1, errors.Wrapf(err, "error parsing unix rights control message: %v", &scm[i])
+		}
+		logrus.Debugf("fds: %v", fds)
+		if len(fds) == 0 {
+			continue
+		}
+		terminalFD = fds[0]
+		break
+	}
+	if terminalFD == -1 {
+		return -1, errors.Errorf("unable to read terminal descriptor")
+	}
+	// Set the pseudoterminal's size to the configured size, or our own.
+	winsize := &unix.Winsize{}
+	if terminalSize != nil {
+		// Use configured sizes.
+		winsize.Row = uint16(terminalSize.Height)
+		winsize.Col = uint16(terminalSize.Width)
+	} else {
+		if terminal.IsTerminal(unix.Stdin) {
+			// Use the size of our terminal.
+			if winsize, err = unix.IoctlGetWinsize(unix.Stdin, unix.TIOCGWINSZ); err != nil {
+				logrus.Warnf("error reading size of controlling terminal: %v", err)
+				winsize.Row = 0
+				winsize.Col = 0
+			}
+		}
+	}
+	if winsize.Row != 0 && winsize.Col != 0 {
+		if err = unix.IoctlSetWinsize(terminalFD, unix.TIOCSWINSZ, winsize); err != nil {
+			logrus.Warnf("error setting size of container pseudoterminal: %v", err)
+		}
+		// FIXME - if we're connected to a terminal, we should
+		// be passing the updated terminal size down when we
+		// receive a SIGWINCH.
+	}
+	return terminalFD, nil
+}
+
+// Create pipes to use for relaying stdio.
+func runMakeStdioPipe(uid, gid int) ([][]int, error) {
+	stdioPipe := make([][]int, 3)
+	for i := range stdioPipe {
+		stdioPipe[i] = make([]int, 2)
+		if err := unix.Pipe(stdioPipe[i]); err != nil {
+			return nil, errors.Wrapf(err, "error creating pipe for container FD %d", i)
+		}
+	}
+	if err := unix.Fchown(stdioPipe[unix.Stdin][0], uid, gid); err != nil {
+		return nil, errors.Wrapf(err, "error setting owner of stdin pipe descriptor")
+	}
+	if err := unix.Fchown(stdioPipe[unix.Stdout][1], uid, gid); err != nil {
+		return nil, errors.Wrapf(err, "error setting owner of stdout pipe descriptor")
+	}
+	if err := unix.Fchown(stdioPipe[unix.Stderr][1], uid, gid); err != nil {
+		return nil, errors.Wrapf(err, "error setting owner of stderr pipe descriptor")
+	}
+	return stdioPipe, nil
+}
+
+func runUsingRuntimeMain() {
+	var options runUsingRuntimeSubprocOptions
+	// Set logging.
+	if level := os.Getenv("LOGLEVEL"); level != "" {
+		if ll, err := strconv.Atoi(level); err == nil {
+			logrus.SetLevel(logrus.Level(ll))
+		}
+	}
+	// Unpack our configuration.
+	confPipe := os.NewFile(3, "confpipe")
+	if confPipe == nil {
+		fmt.Fprintf(os.Stderr, "error reading options pipe\n")
+		os.Exit(1)
+	}
+	defer confPipe.Close()
+	if err := json.NewDecoder(confPipe).Decode(&options); err != nil {
+		fmt.Fprintf(os.Stderr, "error decoding options: %v\n", err)
+		os.Exit(1)
+	}
+	// Set ourselves up to read the container's exit status.  We're doing this in a child process
+	// so that we won't mess with the setting in a caller of the library. This stubs to OS specific
+	// calls
+	if err := setChildProcess(); err != nil {
+		os.Exit(1)
+	}
+	// Run the container, start to finish.
+	status, err := runUsingRuntime(options.Isolation, options.Options, options.ConfigureNetwork, options.ConfigureNetworks, options.MoreCreateArgs, options.Spec, options.RootPath, options.BundlePath, options.ContainerName)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "error running container: %v\n", err)
+		os.Exit(1)
+	}
+	// Pass the container's exit status back to the caller by exiting with the same status.
+	if status.Exited() {
+		os.Exit(status.ExitStatus())
+	} else if status.Signaled() {
+		fmt.Fprintf(os.Stderr, "container exited on %s\n", status.Signal())
+		os.Exit(1)
+	}
+	os.Exit(1)
+}
+
+func setupNamespaces(g *generate.Generator, namespaceOptions NamespaceOptions, idmapOptions IDMappingOptions, policy NetworkConfigurationPolicy) (configureNetwork bool, configureNetworks []string, configureUTS bool, err error) {
+	// Set namespace options in the container configuration.
+	configureUserns := false
+	specifiedNetwork := false
+	for _, namespaceOption := range namespaceOptions {
+		switch namespaceOption.Name {
+		case string(specs.UserNamespace):
+			configureUserns = false
+			if !namespaceOption.Host && namespaceOption.Path == "" {
+				configureUserns = true
+			}
+		case string(specs.NetworkNamespace):
+			specifiedNetwork = true
+			configureNetwork = false
+			if !namespaceOption.Host && (namespaceOption.Path == "" || !filepath.IsAbs(namespaceOption.Path)) {
+				if namespaceOption.Path != "" && !filepath.IsAbs(namespaceOption.Path) {
+					configureNetworks = strings.Split(namespaceOption.Path, ",")
+					namespaceOption.Path = ""
+				}
+				configureNetwork = (policy != NetworkDisabled)
+			}
+		case string(specs.UTSNamespace):
+			configureUTS = false
+			if !namespaceOption.Host && namespaceOption.Path == "" {
+				configureUTS = true
+			}
+		}
+		if namespaceOption.Host {
+			if err := g.RemoveLinuxNamespace(namespaceOption.Name); err != nil {
+				return false, nil, false, errors.Wrapf(err, "error removing %q namespace for run", namespaceOption.Name)
+			}
+		} else if err := g.AddOrReplaceLinuxNamespace(namespaceOption.Name, namespaceOption.Path); err != nil {
+			if namespaceOption.Path == "" {
+				return false, nil, false, errors.Wrapf(err, "error adding new %q namespace for run", namespaceOption.Name)
+			}
+			return false, nil, false, errors.Wrapf(err, "error adding %q namespace %q for run", namespaceOption.Name, namespaceOption.Path)
+		}
+	}
+
+	// If we've got mappings, we're going to have to create a user namespace.
+	if len(idmapOptions.UIDMap) > 0 || len(idmapOptions.GIDMap) > 0 || configureUserns {
+		if err := g.AddOrReplaceLinuxNamespace(specs.UserNamespace, ""); err != nil {
+			return false, nil, false, errors.Wrapf(err, "error adding new %q namespace for run", string(specs.UserNamespace))
+		}
+		hostUidmap, hostGidmap, err := unshare.GetHostIDMappings("")
+		if err != nil {
+			return false, nil, false, err
+		}
+		for _, m := range idmapOptions.UIDMap {
+			g.AddLinuxUIDMapping(m.HostID, m.ContainerID, m.Size)
+		}
+		if len(idmapOptions.UIDMap) == 0 {
+			for _, m := range hostUidmap {
+				g.AddLinuxUIDMapping(m.ContainerID, m.ContainerID, m.Size)
+			}
+		}
+		for _, m := range idmapOptions.GIDMap {
+			g.AddLinuxGIDMapping(m.HostID, m.ContainerID, m.Size)
+		}
+		if len(idmapOptions.GIDMap) == 0 {
+			for _, m := range hostGidmap {
+				g.AddLinuxGIDMapping(m.ContainerID, m.ContainerID, m.Size)
+			}
+		}
+		if !specifiedNetwork {
+			if err := g.AddOrReplaceLinuxNamespace(specs.NetworkNamespace, ""); err != nil {
+				return false, nil, false, errors.Wrapf(err, "error adding new %q namespace for run", string(specs.NetworkNamespace))
+			}
+			configureNetwork = (policy != NetworkDisabled)
+		}
+	} else {
+		if err := g.RemoveLinuxNamespace(specs.UserNamespace); err != nil {
+			return false, nil, false, errors.Wrapf(err, "error removing %q namespace for run", string(specs.UserNamespace))
+		}
+		if !specifiedNetwork {
+			if err := g.RemoveLinuxNamespace(specs.NetworkNamespace); err != nil {
+				return false, nil, false, errors.Wrapf(err, "error removing %q namespace for run", string(specs.NetworkNamespace))
+			}
+		}
+	}
+	if configureNetwork {
+		for name, val := range util.DefaultNetworkSysctl {
+			g.AddLinuxSysctl(name, val)
+		}
+	}
+	return configureNetwork, configureNetworks, configureUTS, nil
+}
+
+func (b *Builder) configureNamespaces(g *generate.Generator, options RunOptions) (bool, []string, error) {
+	defaultNamespaceOptions, err := DefaultNamespaceOptions()
+	if err != nil {
+		return false, nil, err
+	}
+
+	namespaceOptions := defaultNamespaceOptions
+	namespaceOptions.AddOrReplace(b.NamespaceOptions...)
+	namespaceOptions.AddOrReplace(options.NamespaceOptions...)
+
+	networkPolicy := options.ConfigureNetwork
+	if networkPolicy == NetworkDefault {
+		networkPolicy = b.ConfigureNetwork
+	}
+
+	configureNetwork, configureNetworks, configureUTS, err := setupNamespaces(g, namespaceOptions, b.IDMappingOptions, networkPolicy)
+	if err != nil {
+		return false, nil, err
+	}
+
+	if configureUTS {
+		if options.Hostname != "" {
+			g.SetHostname(options.Hostname)
+		} else if b.Hostname() != "" {
+			g.SetHostname(b.Hostname())
+		} else {
+			g.SetHostname(stringid.TruncateID(b.ContainerID))
+		}
+	} else {
+		g.SetHostname("")
+	}
+
+	found := false
+	spec := g.Config
+	for i := range spec.Process.Env {
+		if strings.HasPrefix(spec.Process.Env[i], "HOSTNAME=") {
+			found = true
+			break
+		}
+	}
+	if !found {
+		spec.Process.Env = append(spec.Process.Env, fmt.Sprintf("HOSTNAME=%s", spec.Hostname))
+	}
+
+	return configureNetwork, configureNetworks, nil
+}
+
+func runSetupBoundFiles(bundlePath string, bindFiles map[string]string) (mounts []specs.Mount, err error) {
+	for dest, src := range bindFiles {
+		options := []string{"rbind"}
+		if strings.HasPrefix(src, bundlePath) {
+			options = append(options, bind.NoBindOption)
+		}
+		mounts = append(mounts, specs.Mount{
+			Source:      src,
+			Destination: dest,
+			Type:        "bind",
+			Options:     options,
+		})
+	}
+	return mounts, nil
+}
+
+func addRlimits(ulimit []string, g *generate.Generator) error {
+	var (
+		ul  *units.Ulimit
+		err error
+	)
+
+	for _, u := range ulimit {
+		if ul, err = units.ParseUlimit(u); err != nil {
+			return errors.Wrapf(err, "ulimit option %q requires name=SOFT:HARD, failed to be parsed", u)
+		}
+
+		g.AddProcessRlimits("RLIMIT_"+strings.ToUpper(ul.Name), uint64(ul.Hard), uint64(ul.Soft))
+	}
+	return nil
+}
+
+func runSetupVolumeMounts(mountLabel string, volumeMounts []string, optionMounts []specs.Mount) ([]specs.Mount, error) {
+	var mounts []specs.Mount
+
+	parseMount := func(host, container string, options []string) (specs.Mount, error) {
+		var foundrw, foundro, foundz, foundZ bool
+		var rootProp string
+		for _, opt := range options {
+			switch opt {
+			case "rw":
+				foundrw = true
+			case "ro":
+				foundro = true
+			case "z":
+				foundz = true
+			case "Z":
+				foundZ = true
+			case "private", "rprivate", "slave", "rslave", "shared", "rshared":
+				rootProp = opt
+			}
+		}
+		if !foundrw && !foundro {
+			options = append(options, "rw")
+		}
+		if foundz {
+			if err := label.Relabel(host, mountLabel, true); err != nil {
+				return specs.Mount{}, errors.Wrapf(err, "relabeling %q failed", host)
+			}
+		}
+		if foundZ {
+			if err := label.Relabel(host, mountLabel, false); err != nil {
+				return specs.Mount{}, errors.Wrapf(err, "relabeling %q failed", host)
+			}
+		}
+		if rootProp == "" {
+			options = append(options, "private")
+		}
+		return specs.Mount{
+			Destination: container,
+			Type:        "bind",
+			Source:      host,
+			Options:     options,
+		}, nil
+	}
+	// Bind mount volumes specified for this particular Run() invocation
+	for _, i := range optionMounts {
+		logrus.Debugf("setting up mounted volume at %q", i.Destination)
+		mount, err := parseMount(i.Source, i.Destination, append(i.Options, "rbind"))
+		if err != nil {
+			return nil, err
+		}
+		mounts = append(mounts, mount)
+	}
+	// Bind mount volumes given by the user when the container was created
+	for _, i := range volumeMounts {
+		var options []string
+		spliti := strings.Split(i, ":")
+		if len(spliti) > 2 {
+			options = strings.Split(spliti[2], ",")
+		}
+		options = append(options, "rbind")
+		mount, err := parseMount(spliti[0], spliti[1], options)
+		if err != nil {
+			return nil, err
+		}
+		mounts = append(mounts, mount)
+	}
+	return mounts, nil
+}
+
+func setupMaskedPaths(g *generate.Generator) {
+	for _, mp := range []string{
+		"/proc/acpi",
+		"/proc/kcore",
+		"/proc/keys",
+		"/proc/latency_stats",
+		"/proc/timer_list",
+		"/proc/timer_stats",
+		"/proc/sched_debug",
+		"/proc/scsi",
+		"/sys/firmware",
+	} {
+		g.AddLinuxMaskedPaths(mp)
+	}
+}
+
+func setupReadOnlyPaths(g *generate.Generator) {
+	for _, rp := range []string{
+		"/proc/asound",
+		"/proc/bus",
+		"/proc/fs",
+		"/proc/irq",
+		"/proc/sys",
+		"/proc/sysrq-trigger",
+	} {
+		g.AddLinuxReadonlyPaths(rp)
+	}
+}
+
+func setupCapAdd(g *generate.Generator, caps ...string) error {
+	for _, cap := range caps {
+		if err := g.AddProcessCapabilityBounding(cap); err != nil {
+			return errors.Wrapf(err, "error adding %q to the bounding capability set", cap)
+		}
+		if err := g.AddProcessCapabilityEffective(cap); err != nil {
+			return errors.Wrapf(err, "error adding %q to the effective capability set", cap)
+		}
+		if err := g.AddProcessCapabilityInheritable(cap); err != nil {
+			return errors.Wrapf(err, "error adding %q to the inheritable capability set", cap)
+		}
+		if err := g.AddProcessCapabilityPermitted(cap); err != nil {
+			return errors.Wrapf(err, "error adding %q to the permitted capability set", cap)
+		}
+		if err := g.AddProcessCapabilityAmbient(cap); err != nil {
+			return errors.Wrapf(err, "error adding %q to the ambient capability set", cap)
+		}
+	}
+	return nil
+}
+
+func setupCapDrop(g *generate.Generator, caps ...string) error {
+	for _, cap := range caps {
+		if err := g.DropProcessCapabilityBounding(cap); err != nil {
+			return errors.Wrapf(err, "error removing %q from the bounding capability set", cap)
+		}
+		if err := g.DropProcessCapabilityEffective(cap); err != nil {
+			return errors.Wrapf(err, "error removing %q from the effective capability set", cap)
+		}
+		if err := g.DropProcessCapabilityInheritable(cap); err != nil {
+			return errors.Wrapf(err, "error removing %q from the inheritable capability set", cap)
+		}
+		if err := g.DropProcessCapabilityPermitted(cap); err != nil {
+			return errors.Wrapf(err, "error removing %q from the permitted capability set", cap)
+		}
+		if err := g.DropProcessCapabilityAmbient(cap); err != nil {
+			return errors.Wrapf(err, "error removing %q from the ambient capability set", cap)
+		}
+	}
+	return nil
+}
+
+func setupCapabilities(g *generate.Generator, firstAdds, firstDrops, secondAdds, secondDrops []string) error {
+	g.ClearProcessCapabilities()
+	if err := setupCapAdd(g, util.DefaultCapabilities...); err != nil {
+		return err
+	}
+	if err := setupCapAdd(g, firstAdds...); err != nil {
+		return err
+	}
+	if err := setupCapDrop(g, firstDrops...); err != nil {
+		return err
+	}
+	if err := setupCapAdd(g, secondAdds...); err != nil {
+		return err
+	}
+	return setupCapDrop(g, secondDrops...)
+}
+
+// Search for a command that isn't given as an absolute path using the $PATH
+// under the rootfs.  We can't resolve absolute symbolic links without
+// chroot()ing, which we may not be able to do, so just accept a link as a
+// valid resolution.
+func runLookupPath(g *generate.Generator, command []string) []string {
+	// Look for the configured $PATH.
+	spec := g.Config
+	envPath := ""
+	for i := range spec.Process.Env {
+		if strings.HasPrefix(spec.Process.Env[i], "PATH=") {
+			envPath = spec.Process.Env[i]
+		}
+	}
+	// If there is no configured $PATH, supply one.
+	if envPath == "" {
+		defaultPath := "/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin"
+		envPath = "PATH=" + defaultPath
+		g.AddProcessEnv("PATH", defaultPath)
+	}
+	// No command, nothing to do.
+	if len(command) == 0 {
+		return command
+	}
+	// Command is already an absolute path, use it as-is.
+	if filepath.IsAbs(command[0]) {
+		return command
+	}
+	// For each element in the PATH,
+	for _, pathEntry := range filepath.SplitList(envPath[5:]) {
+		// if it's the empty string, it's ".", which is the Cwd,
+		if pathEntry == "" {
+			pathEntry = spec.Process.Cwd
+		}
+		// build the absolute path which it might be,
+		candidate := filepath.Join(pathEntry, command[0])
+		// check if it's there,
+		if fi, err := os.Lstat(filepath.Join(spec.Root.Path, candidate)); fi != nil && err == nil {
+			// and if it's not a directory, and either a symlink or executable,
+			if !fi.IsDir() && ((fi.Mode()&os.ModeSymlink != 0) || (fi.Mode()&0111 != 0)) {
+				// use that.
+				return append([]string{candidate}, command[1:]...)
+			}
+		}
+	}
+	return command
+}
+
+func getDNSIP(dnsServers []string) (dns []net.IP, err error) {
+	for _, i := range dnsServers {
+		result := net.ParseIP(i)
+		if result == nil {
+			return dns, errors.Errorf("invalid IP address %s", i)
+		}
+		dns = append(dns, result)
+	}
+	return dns, nil
+}
+
+func (b *Builder) configureUIDGID(g *generate.Generator, mountPoint string, options RunOptions) error {
+	// Set the user UID/GID/supplemental group list/capabilities lists.
+	user, err := b.user(mountPoint, options.User)
+	if err != nil {
+		return err
+	}
+	if err := setupCapabilities(g, b.AddCapabilities, b.DropCapabilities, options.AddCapabilities, options.DropCapabilities); err != nil {
+		return err
+	}
+	g.SetProcessUID(user.UID)
+	g.SetProcessGID(user.GID)
+	for _, gid := range user.AdditionalGids {
+		g.AddProcessAdditionalGid(gid)
+	}
+
+	// Remove capabilities if not running as root except Bounding set
+	if user.UID != 0 {
+		bounding := g.Config.Process.Capabilities.Bounding
+		g.ClearProcessCapabilities()
+		g.Config.Process.Capabilities.Bounding = bounding
+	}
+
+	return nil
+}
+
+func (b *Builder) configureEnvironment(g *generate.Generator, options RunOptions) {
+	g.ClearProcessEnv()
+	if b.CommonBuildOpts.HTTPProxy {
+		for _, envSpec := range []string{
+			"http_proxy",
+			"HTTP_PROXY",
+			"https_proxy",
+			"HTTPS_PROXY",
+			"ftp_proxy",
+			"FTP_PROXY",
+			"no_proxy",
+			"NO_PROXY",
+		} {
+			envVal := os.Getenv(envSpec)
+			if envVal != "" {
+				g.AddProcessEnv(envSpec, envVal)
+			}
+		}
+	}
+
+	for _, envSpec := range append(b.Env(), options.Env...) {
+		env := strings.SplitN(envSpec, "=", 2)
+		if len(env) > 1 {
+			g.AddProcessEnv(env[0], env[1])
+		}
+	}
+
+	for src, dest := range b.Args {
+		g.AddProcessEnv(src, dest)
+	}
+}
+
+func setupRootlessSpecChanges(spec *specs.Spec, bundleDir string, rootUID, rootGID uint32) error {
+	spec.Hostname = ""
+	spec.Process.User.AdditionalGids = nil
+	spec.Linux.Resources = nil
+
+	emptyDir := filepath.Join(bundleDir, "empty")
+	if err := os.Mkdir(emptyDir, 0); err != nil {
+		return errors.Wrapf(err, "error creating %q", emptyDir)
+	}
+
+	// Replace /sys with a read-only bind mount.
+	mounts := []specs.Mount{
+		{
+			Source:      "/dev",
+			Destination: "/dev",
+			Type:        "tmpfs",
+			Options:     []string{"private", "strictatime", "noexec", "nosuid", "mode=755", "size=65536k"},
+		},
+		{
+			Source:      "mqueue",
+			Destination: "/dev/mqueue",
+			Type:        "mqueue",
+			Options:     []string{"private", "nodev", "noexec", "nosuid"},
+		},
+		{
+			Source:      "pts",
+			Destination: "/dev/pts",
+			Type:        "devpts",
+			Options:     []string{"private", "noexec", "nosuid", "newinstance", "ptmxmode=0666", "mode=0620"},
+		},
+		{
+			Source:      "shm",
+			Destination: "/dev/shm",
+			Type:        "tmpfs",
+			Options:     []string{"private", "nodev", "noexec", "nosuid", "mode=1777", "size=65536k"},
+		},
+		{
+			Source:      "/proc",
+			Destination: "/proc",
+			Type:        "proc",
+			Options:     []string{"private", "nodev", "noexec", "nosuid"},
+		},
+		{
+			Source:      "/sys",
+			Destination: "/sys",
+			Type:        "bind",
+			Options:     []string{bind.NoBindOption, "rbind", "private", "nodev", "noexec", "nosuid", "ro"},
+		},
+	}
+	// Cover up /sys/fs/cgroup and /sys/fs/selinux, if they exist in our source for /sys.
+	if _, err := os.Stat("/sys/fs/cgroup"); err == nil {
+		spec.Linux.MaskedPaths = append(spec.Linux.MaskedPaths, "/sys/fs/cgroup")
+	}
+	if _, err := os.Stat("/sys/fs/selinux"); err == nil {
+		spec.Linux.MaskedPaths = append(spec.Linux.MaskedPaths, "/sys/fs/selinux")
+	}
+	// Keep anything that isn't under /dev, /proc, or /sys.
+	for i := range spec.Mounts {
+		if spec.Mounts[i].Destination == "/dev" || strings.HasPrefix(spec.Mounts[i].Destination, "/dev/") ||
+			spec.Mounts[i].Destination == "/proc" || strings.HasPrefix(spec.Mounts[i].Destination, "/proc/") ||
+			spec.Mounts[i].Destination == "/sys" || strings.HasPrefix(spec.Mounts[i].Destination, "/sys/") {
+			continue
+		}
+		mounts = append(mounts, spec.Mounts[i])
+	}
+	spec.Mounts = mounts
+	return nil
+}
+
+func (b *Builder) runUsingRuntimeSubproc(isolation Isolation, options RunOptions, configureNetwork bool, configureNetworks, moreCreateArgs []string, spec *specs.Spec, rootPath, bundlePath, containerName string) (err error) {
+	var confwg sync.WaitGroup
+	config, conferr := json.Marshal(runUsingRuntimeSubprocOptions{
+		Options:           options,
+		Spec:              spec,
+		RootPath:          rootPath,
+		BundlePath:        bundlePath,
+		ConfigureNetwork:  configureNetwork,
+		ConfigureNetworks: configureNetworks,
+		MoreCreateArgs:    moreCreateArgs,
+		ContainerName:     containerName,
+		Isolation:         isolation,
+	})
+	if conferr != nil {
+		return errors.Wrapf(conferr, "error encoding configuration for %q", runUsingRuntimeCommand)
+	}
+	cmd := reexec.Command(runUsingRuntimeCommand)
+	cmd.Dir = bundlePath
+	cmd.Stdin = options.Stdin
+	if cmd.Stdin == nil {
+		cmd.Stdin = os.Stdin
+	}
+	cmd.Stdout = options.Stdout
+	if cmd.Stdout == nil {
+		cmd.Stdout = os.Stdout
+	}
+	cmd.Stderr = options.Stderr
+	if cmd.Stderr == nil {
+		cmd.Stderr = os.Stderr
+	}
+	cmd.Env = append(os.Environ(), fmt.Sprintf("LOGLEVEL=%d", logrus.GetLevel()))
+	preader, pwriter, err := os.Pipe()
+	if err != nil {
+		return errors.Wrapf(err, "error creating configuration pipe")
+	}
+	confwg.Add(1)
+	go func() {
+		_, conferr = io.Copy(pwriter, bytes.NewReader(config))
+		if conferr != nil {
+			conferr = errors.Wrapf(conferr, "error while copying configuration down pipe to child process")
+		}
+		confwg.Done()
+	}()
+	cmd.ExtraFiles = append([]*os.File{preader}, cmd.ExtraFiles...)
+	defer preader.Close()
+	defer pwriter.Close()
+	err = cmd.Run()
+	if err != nil {
+		err = errors.Wrapf(err, "error while running runtime")
+	}
+	confwg.Wait()
+	if err == nil {
+		return conferr
+	}
+	if conferr != nil {
+		logrus.Debugf("%v", conferr)
+	}
+	return err
+}
+
+func checkAndOverrideIsolationOptions(isolation Isolation, options *RunOptions) error {
+	switch isolation {
+	case IsolationOCIRootless:
+		if ns := options.NamespaceOptions.Find(string(specs.IPCNamespace)); ns == nil || ns.Host {
+			logrus.Debugf("Forcing use of an IPC namespace.")
+		}
+		options.NamespaceOptions.AddOrReplace(NamespaceOption{Name: string(specs.IPCNamespace)})
+		_, err := exec.LookPath("slirp4netns")
+		hostNetworking := err != nil
+		networkNamespacePath := ""
+		if ns := options.NamespaceOptions.Find(string(specs.NetworkNamespace)); ns != nil {
+			hostNetworking = ns.Host
+			networkNamespacePath = ns.Path
+			if !hostNetworking && networkNamespacePath != "" && !filepath.IsAbs(networkNamespacePath) {
+				logrus.Debugf("Disabling network namespace configuration.")
+				networkNamespacePath = ""
+			}
+		}
+		options.NamespaceOptions.AddOrReplace(NamespaceOption{
+			Name: string(specs.NetworkNamespace),
+			Host: hostNetworking,
+			Path: networkNamespacePath,
+		})
+		if ns := options.NamespaceOptions.Find(string(specs.PIDNamespace)); ns == nil || ns.Host {
+			logrus.Debugf("Forcing use of a PID namespace.")
+		}
+		options.NamespaceOptions.AddOrReplace(NamespaceOption{Name: string(specs.PIDNamespace), Host: false})
+		if ns := options.NamespaceOptions.Find(string(specs.UserNamespace)); ns == nil || ns.Host {
+			logrus.Debugf("Forcing use of a user namespace.")
+		}
+		options.NamespaceOptions.AddOrReplace(NamespaceOption{Name: string(specs.UserNamespace)})
+		if ns := options.NamespaceOptions.Find(string(specs.UTSNamespace)); ns != nil && !ns.Host {
+			logrus.Debugf("Disabling UTS namespace.")
+		}
+		options.NamespaceOptions.AddOrReplace(NamespaceOption{Name: string(specs.UTSNamespace), Host: true})
+	case IsolationOCI:
+		pidns := options.NamespaceOptions.Find(string(specs.PIDNamespace))
+		userns := options.NamespaceOptions.Find(string(specs.UserNamespace))
+		if (pidns == nil || pidns.Host) && (userns != nil && !userns.Host) {
+			return fmt.Errorf("not allowed to mix host PID namespace with container user namespace")
+		}
+	}
+	return nil
+}
+
+// DefaultNamespaceOptions returns the default namespace settings from the
+// runtime-tools generator library.
+func DefaultNamespaceOptions() (NamespaceOptions, error) {
+	options := NamespaceOptions{
+		{Name: string(specs.CgroupNamespace), Host: true},
+		{Name: string(specs.IPCNamespace), Host: true},
+		{Name: string(specs.MountNamespace), Host: true},
+		{Name: string(specs.NetworkNamespace), Host: true},
+		{Name: string(specs.PIDNamespace), Host: true},
+		{Name: string(specs.UserNamespace), Host: true},
+		{Name: string(specs.UTSNamespace), Host: true},
+	}
+	g, err := generate.New("linux")
+	if err != nil {
+		return options, errors.Wrapf(err, "error generating new 'linux' runtime spec")
+	}
+	spec := g.Config
+	if spec.Linux != nil {
+		for _, ns := range spec.Linux.Namespaces {
+			options.AddOrReplace(NamespaceOption{
+				Name: string(ns.Type),
+				Path: ns.Path,
+			})
+		}
+	}
+	return options, nil
+}
+
+func contains(volumes []string, v string) bool {
+	for _, i := range volumes {
+		if i == v {
+			return true
+		}
+	}
+	return false
+}
+
+type runUsingRuntimeSubprocOptions struct {
+	Options           RunOptions
+	Spec              *specs.Spec
+	RootPath          string
+	BundlePath        string
+	ConfigureNetwork  bool
+	ConfigureNetworks []string
+	MoreCreateArgs    []string
+	ContainerName     string
+	Isolation         Isolation
+}
+
+func init() {
+	reexec.Register(runUsingRuntimeCommand, runUsingRuntimeMain)
+}
diff --git a/vendor/github.com/containers/buildah/run_unsupport.go b/vendor/github.com/containers/buildah/run_unsupport.go
deleted file mode 100644
index 4824a0c4e..000000000
--- a/vendor/github.com/containers/buildah/run_unsupport.go
+++ /dev/null
@@ -1,11 +0,0 @@
-// +build !linux
-
-package buildah
-
-import (
-	"github.com/pkg/errors"
-)
-
-func setChildProcess() error {
-	return errors.New("function not supported on non-linux systems")
-}
diff --git a/vendor/github.com/containers/buildah/run_unsupported.go b/vendor/github.com/containers/buildah/run_unsupported.go
new file mode 100644
index 000000000..d8ff46cf6
--- /dev/null
+++ b/vendor/github.com/containers/buildah/run_unsupported.go
@@ -0,0 +1,20 @@
+// +build !linux
+
+package buildah
+
+import (
+	"github.com/pkg/errors"
+)
+
+func setChildProcess() error {
+	return errors.New("function not supported on non-linux systems")
+}
+
+func runUsingRuntimeMain() {}
+
+func (b *Builder) Run(command []string, options RunOptions) error {
+	return errors.New("function not supported on non-linux systems")
+}
+func DefaultNamespaceOptions() (NamespaceOptions, error) {
+	return NamespaceOptions{}, errors.New("function not supported on non-linux systems")
+}
diff --git a/vendor/github.com/varlink/go/varlink/bridge_windows.go b/vendor/github.com/varlink/go/varlink/bridge_windows.go
index 220ae3156..751224ec8 100644
--- a/vendor/github.com/varlink/go/varlink/bridge_windows.go
+++ b/vendor/github.com/varlink/go/varlink/bridge_windows.go
@@ -44,8 +44,8 @@ func NewBridge(bridge string) (*Connection, error) {
 	}
 	c.conn = PipeCon{nil, cmd, &r, &w}
 	c.address = ""
-	c.reader = bufio.NewReader(r)
-	c.writer = bufio.NewWriter(w)
+	c.Reader = bufio.NewReader(r)
+	c.Writer = bufio.NewWriter(w)
 
 	err = cmd.Start()
 	if err != nil {
diff --git a/vendor/github.com/varlink/go/varlink/call.go b/vendor/github.com/varlink/go/varlink/call.go
index d6e046f1d..0eaf24aca 100644
--- a/vendor/github.com/varlink/go/varlink/call.go
+++ b/vendor/github.com/varlink/go/varlink/call.go
@@ -5,6 +5,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"net"
 	"strings"
 )
 
@@ -14,36 +15,38 @@ import (
 type Call struct {
 	*bufio.Reader
 	*bufio.Writer
-	in        *serviceCall
+	Conn      *net.Conn
+	Request   *[]byte
+	In        *serviceCall
 	Continues bool
 	Upgrade   bool
 }
 
 // WantsMore indicates if the calling client accepts more than one reply to this method call.
 func (c *Call) WantsMore() bool {
-	return c.in.More
+	return c.In.More
 }
 
 // WantsUpgrade indicates that the calling client wants the connection to be upgraded.
 func (c *Call) WantsUpgrade() bool {
-	return c.in.Upgrade
+	return c.In.Upgrade
 }
 
 // IsOneway indicate that the calling client does not expect a reply.
 func (c *Call) IsOneway() bool {
-	return c.in.Oneway
+	return c.In.Oneway
 }
 
 // GetParameters retrieves the method call parameters.
 func (c *Call) GetParameters(p interface{}) error {
-	if c.in.Parameters == nil {
+	if c.In.Parameters == nil {
 		return fmt.Errorf("empty parameters")
 	}
-	return json.Unmarshal(*c.in.Parameters, p)
+	return json.Unmarshal(*c.In.Parameters, p)
 }
 
 func (c *Call) sendMessage(r *serviceReply) error {
-	if c.in.Oneway {
+	if c.In.Oneway {
 		return nil
 	}
 
@@ -75,7 +78,7 @@ func (c *Call) Reply(parameters interface{}) error {
 		})
 	}
 
-	if !c.in.More {
+	if !c.In.More {
 		return fmt.Errorf("call did not set more, it does not expect continues")
 	}
 
diff --git a/vendor/github.com/varlink/go/varlink/service.go b/vendor/github.com/varlink/go/varlink/service.go
index abccffe6a..bf13aa1de 100644
--- a/vendor/github.com/varlink/go/varlink/service.go
+++ b/vendor/github.com/varlink/go/varlink/service.go
@@ -74,7 +74,7 @@ func (s *Service) getInterfaceDescription(c Call, name string) error {
 	return c.replyGetInterfaceDescription(description)
 }
 
-func (s *Service) handleMessage(reader *bufio.Reader, writer *bufio.Writer, request []byte) error {
+func (s *Service) HandleMessage(conn *net.Conn, reader *bufio.Reader, writer *bufio.Writer, request []byte) error {
 	var in serviceCall
 
 	err := json.Unmarshal(request, &in)
@@ -84,9 +84,11 @@ func (s *Service) handleMessage(reader *bufio.Reader, writer *bufio.Writer, requ
 	}
 
 	c := Call{
-		Reader: reader,
-		Writer: writer,
-		in:     &in,
+		Conn:    conn,
+		Reader:  reader,
+		Writer:  writer,
+		In:      &in,
+		Request: &request,
 	}
 
 	r := strings.LastIndex(in.Method, ".")
@@ -131,7 +133,7 @@ func (s *Service) handleConnection(conn net.Conn, wg *sync.WaitGroup) {
 			break
 		}
 
-		err = s.handleMessage(reader, writer, request[:len(request)-1])
+		err = s.HandleMessage(&conn, reader, writer, request[:len(request)-1])
 		if err != nil {
 			// FIXME: report error
 			//fmt.Fprintf(os.Stderr, "handleMessage: %v", err)
@@ -179,25 +181,36 @@ func (s *Service) parseAddress(address string) error {
 	return nil
 }
 
-func getListener(protocol string, address string) (net.Listener, error) {
+func (s *Service) GetListener() (*net.Listener, error) {
+	s.mutex.Lock()
+	l := s.listener
+	s.mutex.Unlock()
+	return &l, nil
+}
+
+func (s *Service) setListener() error {
 	l := activationListener()
 	if l == nil {
-		if protocol == "unix" && address[0] != '@' {
-			os.Remove(address)
+		if s.protocol == "unix" && s.address[0] != '@' {
+			os.Remove(s.address)
 		}
 
 		var err error
-		l, err = net.Listen(protocol, address)
+		l, err = net.Listen(s.protocol, s.address)
 		if err != nil {
-			return nil, err
+			return err
 		}
 
-		if protocol == "unix" && address[0] != '@' {
+		if s.protocol == "unix" && s.address[0] != '@' {
 			l.(*net.UnixListener).SetUnlinkOnClose(true)
 		}
 	}
 
-	return l, nil
+	s.mutex.Lock()
+	s.listener = l
+	s.mutex.Unlock()
+
+	return nil
 }
 
 func (s *Service) refreshTimeout(timeout time.Duration) error {
@@ -216,26 +229,84 @@ func (s *Service) refreshTimeout(timeout time.Duration) error {
 }
 
 // Listen starts a Service.
-func (s *Service) Listen(address string, timeout time.Duration) error {
-	var wg sync.WaitGroup
-	defer func() { s.teardown(); wg.Wait() }()
-
+func (s *Service) Bind(address string) error {
 	s.mutex.Lock()
 	if s.running {
 		s.mutex.Unlock()
-		return fmt.Errorf("Listen(): already running")
+		return fmt.Errorf("Init(): already running")
 	}
 	s.mutex.Unlock()
 
 	s.parseAddress(address)
 
-	l, err := getListener(s.protocol, s.address)
+	err := s.setListener()
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// Listen starts a Service.
+func (s *Service) Listen(address string, timeout time.Duration) error {
+	var wg sync.WaitGroup
+	defer func() { s.teardown(); wg.Wait() }()
+
+	err := s.Bind(address)
 	if err != nil {
 		return err
 	}
 
 	s.mutex.Lock()
-	s.listener = l
+	s.running = true
+	l := s.listener
+	s.mutex.Unlock()
+
+	for s.running {
+		if timeout != 0 {
+			if err := s.refreshTimeout(timeout); err != nil {
+				return err
+			}
+		}
+		conn, err := l.Accept()
+		if err != nil {
+			if err.(net.Error).Timeout() {
+				s.mutex.Lock()
+				if s.conncounter == 0 {
+					s.mutex.Unlock()
+					return ServiceTimeoutError{}
+				}
+				s.mutex.Unlock()
+				continue
+			}
+			if !s.running {
+				return nil
+			}
+			return err
+		}
+		s.mutex.Lock()
+		s.conncounter++
+		s.mutex.Unlock()
+		wg.Add(1)
+		go s.handleConnection(conn, &wg)
+	}
+
+	return nil
+}
+
+// Listen starts a Service.
+func (s *Service) DoListen(timeout time.Duration) error {
+	var wg sync.WaitGroup
+	defer func() { s.teardown(); wg.Wait() }()
+
+	s.mutex.Lock()
+	l := s.listener
+	s.mutex.Unlock()
+
+	if l == nil {
+		return fmt.Errorf("No listener set")
+	}
+
+	s.mutex.Lock()
 	s.running = true
 	s.mutex.Unlock()
 
diff --git a/vendor/github.com/varlink/go/varlink/varlink_test.go b/vendor/github.com/varlink/go/varlink/varlink_test.go
index 9dd4ddc63..9e6d0a1f4 100644
--- a/vendor/github.com/varlink/go/varlink/varlink_test.go
+++ b/vendor/github.com/varlink/go/varlink/varlink_test.go
@@ -31,7 +31,7 @@ func TestService(t *testing.T) {
 		r := bufio.NewReader(&br)
 		var b bytes.Buffer
 		w := bufio.NewWriter(&b)
-		if err := service.handleMessage(r, w, []byte{0}); err == nil {
+		if err := service.HandleMessage(nil, r, w, []byte{0}); err == nil {
 			t.Fatal("HandleMessage returned non-error")
 		}
 	})
@@ -42,7 +42,7 @@ func TestService(t *testing.T) {
 		var b bytes.Buffer
 		w := bufio.NewWriter(&b)
 		msg := []byte(`{"method":"foo.GetInterfaceDescription" fdgdfg}`)
-		if err := service.handleMessage(r, w, msg); err == nil {
+		if err := service.HandleMessage(nil, r, w, msg); err == nil {
 			t.Fatal("HandleMessage returned no error on invalid json")
 		}
 	})
@@ -53,7 +53,7 @@ func TestService(t *testing.T) {
 		var b bytes.Buffer
 		w := bufio.NewWriter(&b)
 		msg := []byte(`{"method":"foo.GetInterfaceDescription"}`)
-		if err := service.handleMessage(r, w, msg); err != nil {
+		if err := service.HandleMessage(nil, r, w, msg); err != nil {
 			t.Fatal("HandleMessage returned error on wrong interface")
 		}
 		expect(t, `{"parameters":{"interface":"foo"},"error":"org.varlink.service.InterfaceNotFound"}`+"\000",
@@ -66,7 +66,7 @@ func TestService(t *testing.T) {
 		var b bytes.Buffer
 		w := bufio.NewWriter(&b)
 		msg := []byte(`{"method":"InvalidMethod"}`)
-		if err := service.handleMessage(r, w, msg); err != nil {
+		if err := service.HandleMessage(nil, r, w, msg); err != nil {
 			t.Fatal("HandleMessage returned error on invalid method")
 		}
 		expect(t, `{"parameters":{"parameter":"method"},"error":"org.varlink.service.InvalidParameter"}`+"\000",
@@ -79,7 +79,7 @@ func TestService(t *testing.T) {
 		var b bytes.Buffer
 		w := bufio.NewWriter(&b)
 		msg := []byte(`{"method":"org.varlink.service.WrongMethod"}`)
-		if err := service.handleMessage(r, w, msg); err != nil {
+		if err := service.HandleMessage(nil, r, w, msg); err != nil {
 			t.Fatal("HandleMessage returned error on wrong method")
 		}
 		expect(t, `{"parameters":{"method":"WrongMethod"},"error":"org.varlink.service.MethodNotFound"}`+"\000",
@@ -92,7 +92,7 @@ func TestService(t *testing.T) {
 		var b bytes.Buffer
 		w := bufio.NewWriter(&b)
 		msg := []byte(`{"method":"org.varlink.service.GetInterfaceDescription","parameters": null}`)
-		if err := service.handleMessage(r, w, msg); err != nil {
+		if err := service.HandleMessage(nil, r, w, msg); err != nil {
 			t.Fatalf("HandleMessage returned error: %v", err)
 		}
 		expect(t, `{"parameters":{"parameter":"parameters"},"error":"org.varlink.service.InvalidParameter"}`+"\000",
@@ -105,7 +105,7 @@ func TestService(t *testing.T) {
 		var b bytes.Buffer
 		w := bufio.NewWriter(&b)
 		msg := []byte(`{"method":"org.varlink.service.GetInterfaceDescription","parameters":{}}`)
-		if err := service.handleMessage(r, w, msg); err != nil {
+		if err := service.HandleMessage(nil, r, w, msg); err != nil {
 			t.Fatalf("HandleMessage returned error: %v", err)
 		}
 		expect(t, `{"parameters":{"parameter":"interface"},"error":"org.varlink.service.InvalidParameter"}`+"\000",
@@ -118,7 +118,7 @@ func TestService(t *testing.T) {
 		var b bytes.Buffer
 		w := bufio.NewWriter(&b)
 		msg := []byte(`{"method":"org.varlink.service.GetInterfaceDescription","parameters":{"interface":"foo"}}`)
-		if err := service.handleMessage(r, w, msg); err != nil {
+		if err := service.HandleMessage(nil, r, w, msg); err != nil {
 			t.Fatalf("HandleMessage returned error: %v", err)
 		}
 		expect(t, `{"parameters":{"parameter":"interface"},"error":"org.varlink.service.InvalidParameter"}`+"\000",
@@ -131,7 +131,7 @@ func TestService(t *testing.T) {
 		var b bytes.Buffer
 		w := bufio.NewWriter(&b)
 		msg := []byte(`{"method":"org.varlink.service.GetInterfaceDescription","parameters":{"interface":"org.varlink.service"}}`)
-		if err := service.handleMessage(r, w, msg); err != nil {
+		if err := service.HandleMessage(nil, r, w, msg); err != nil {
 			t.Fatalf("HandleMessage returned error: %v", err)
 		}
 		expect(t, `{"parameters":{"description":"# The Varlink Service Interface is provided by every varlink service. It\n# describes the service and the interfaces it implements.\ninterface org.varlink.service\n\n# Get a list of all the interfaces a service provides and information\n# about the implementation.\nmethod GetInfo() -\u003e (\n  vendor: string,\n  product: string,\n  version: string,\n  url: string,\n  interfaces: []string\n)\n\n# Get the description of an interface that is implemented by this service.\nmethod GetInterfaceDescription(interface: string) -\u003e (description: string)\n\n# The requested interface was not found.\nerror InterfaceNotFound (interface: string)\n\n# The requested method was not found\nerror MethodNotFound (method: string)\n\n# The interface defines the requested method, but the service does not\n# implement it.\nerror MethodNotImplemented (method: string)\n\n# One of the passed parameters is invalid.\nerror InvalidParameter (parameter: string)"}}`+"\000",
@@ -144,7 +144,7 @@ func TestService(t *testing.T) {
 		var b bytes.Buffer
 		w := bufio.NewWriter(&b)
 		msg := []byte(`{"method":"org.varlink.service.GetInfo"}`)
-		if err := service.handleMessage(r, w, msg); err != nil {
+		if err := service.HandleMessage(nil, r, w, msg); err != nil {
 			t.Fatalf("HandleMessage returned error: %v", err)
 		}
 		expect(t, `{"parameters":{"vendor":"Varlink","product":"Varlink Test","version":"1","url":"https://github.com/varlink/go/varlink","interfaces":["org.varlink.service"]}}`+"\000",
@@ -224,7 +224,7 @@ func TestMoreService(t *testing.T) {
 		var b bytes.Buffer
 		w := bufio.NewWriter(&b)
 		msg := []byte(`{"method":"org.example.test.Pingf"}`)
-		if err := service.handleMessage(r, w, msg); err != nil {
+		if err := service.HandleMessage(nil, r, w, msg); err != nil {
 			t.Fatalf("HandleMessage returned error: %v", err)
 		}
 		expect(t, `{"parameters":{"method":"Pingf"},"error":"org.varlink.service.MethodNotImplemented"}`+"\000",
@@ -237,7 +237,7 @@ func TestMoreService(t *testing.T) {
 		var b bytes.Buffer
 		w := bufio.NewWriter(&b)
 		msg := []byte(`{"method":"org.example.test.PingError", "more" : true}`)
-		if err := service.handleMessage(r, w, msg); err != nil {
+		if err := service.HandleMessage(nil, r, w, msg); err != nil {
 			t.Fatalf("HandleMessage returned error: %v", err)
 		}
 		expect(t, `{"error":"org.example.test.PingError"}`+"\000",
@@ -249,7 +249,7 @@ func TestMoreService(t *testing.T) {
 		var b bytes.Buffer
 		w := bufio.NewWriter(&b)
 		msg := []byte(`{"method":"org.example.test.Ping", "more" : true}`)
-		if err := service.handleMessage(r, w, msg); err != nil {
+		if err := service.HandleMessage(nil, r, w, msg); err != nil {
 			t.Fatalf("HandleMessage returned error: %v", err)
 		}
 		expect(t, `{"continues":true}`+"\000"+`{"continues":true}`+"\000"+`{}`+"\000",