Merge pull request #2959 from mheon/merge_volume_flags

Merge volume flags implementation

2 files changed, 19 insertions, 223 deletions

diff --git a/cmd/podman/shared/create.go b/cmd/podman/shared/create.go
index eac2d044d..81566326b 100644
--- a/cmd/podman/shared/create.go
+++ b/cmd/podman/shared/create.go
@@ -25,7 +25,6 @@ import (
 	"github.com/docker/go-connections/nat"
 	"github.com/docker/go-units"
 	"github.com/google/shlex"
-	spec "github.com/opencontainers/runtime-spec/specs-go"
 	"github.com/opencontainers/selinux/go-selinux/label"
 	"github.com/opentracing/opentracing-go"
 	"github.com/pkg/errors"
@@ -114,6 +113,7 @@ func CreateContainer(ctx context.Context, c *GenericCLIResults, runtime *libpod.
 			}
 		}
 	}
+
 	createConfig, err := ParseCreateOpts(ctx, c, runtime, imageName, data)
 	if err != nil {
 		return nil, nil, err
@@ -123,7 +123,16 @@ func CreateContainer(ctx context.Context, c *GenericCLIResults, runtime *libpod.
 	// at this point. The rest is done by WithOptions.
 	createConfig.HealthCheck = healthCheck
 
-	ctr, err := CreateContainerFromCreateConfig(runtime, createConfig, ctx, nil)
+	// TODO: Should be able to return this from ParseCreateOpts
+	var pod *libpod.Pod
+	if createConfig.Pod != "" {
+		pod, err = runtime.LookupPod(createConfig.Pod)
+		if err != nil {
+			return nil, nil, errors.Wrapf(err, "error looking up pod to join")
+		}
+	}
+
+	ctr, err := CreateContainerFromCreateConfig(runtime, createConfig, ctx, pod)
 	if err != nil {
 		return nil, nil, err
 	}
@@ -139,7 +148,7 @@ func CreateContainer(ctx context.Context, c *GenericCLIResults, runtime *libpod.
 	return ctr, createConfig, nil
 }
 
-func parseSecurityOpt(config *cc.CreateConfig, securityOpts []string) error {
+func parseSecurityOpt(config *cc.CreateConfig, securityOpts []string, runtime *libpod.Runtime) error {
 	var (
 		labelOpts []string
 	)
@@ -147,7 +156,7 @@ func parseSecurityOpt(config *cc.CreateConfig, securityOpts []string) error {
 	if config.PidMode.IsHost() {
 		labelOpts = append(labelOpts, label.DisableSecOpt()...)
 	} else if config.PidMode.IsContainer() {
-		ctr, err := config.Runtime.LookupContainer(config.PidMode.Container())
+		ctr, err := runtime.LookupContainer(config.PidMode.Container())
 		if err != nil {
 			return errors.Wrapf(err, "container %q not found", config.PidMode.Container())
 		}
@@ -161,7 +170,7 @@ func parseSecurityOpt(config *cc.CreateConfig, securityOpts []string) error {
 	if config.IpcMode.IsHost() {
 		labelOpts = append(labelOpts, label.DisableSecOpt()...)
 	} else if config.IpcMode.IsContainer() {
-		ctr, err := config.Runtime.LookupContainer(config.IpcMode.Container())
+		ctr, err := runtime.LookupContainer(config.IpcMode.Container())
 		if err != nil {
 			return errors.Wrapf(err, "container %q not found", config.IpcMode.Container())
 		}
@@ -331,18 +340,6 @@ func ParseCreateOpts(ctx context.Context, c *GenericCLIResults, runtime *libpod.
 		}
 		blkioWeight = uint16(u)
 	}
-	var mountList []spec.Mount
-	if mountList, err = parseMounts(c.StringArray("mount")); err != nil {
-		return nil, err
-	}
-
-	if err = parseVolumes(c.StringArray("volume")); err != nil {
-		return nil, err
-	}
-
-	if err = parseVolumesFrom(c.StringSlice("volumes-from")); err != nil {
-		return nil, err
-	}
 
 	tty := c.Bool("tty")
 
@@ -604,7 +601,6 @@ func ParseCreateOpts(ctx context.Context, c *GenericCLIResults, runtime *libpod.
 	memorySwappiness := c.Int64("memory-swappiness")
 
 	config := &cc.CreateConfig{
-		Runtime:           runtime,
 		Annotations:       annotations,
 		BuiltinImgVolumes: ImageVolumes,
 		ConmonPidFile:     c.String("conmon-pidfile"),
@@ -627,6 +623,8 @@ func ParseCreateOpts(ctx context.Context, c *GenericCLIResults, runtime *libpod.
 		HTTPProxy:   c.Bool("http-proxy"),
 		NoHosts:     c.Bool("no-hosts"),
 		IDMappings:  idmappings,
+		Init:        c.Bool("init"),
+		InitPath:    c.String("init-path"),
 		Image:       imageName,
 		ImageID:     imageID,
 		Interactive: c.Bool("interactive"),
@@ -687,31 +685,18 @@ func ParseCreateOpts(ctx context.Context, c *GenericCLIResults, runtime *libpod.
 		Tty:         tty,
 		User:        user,
 		UsernsMode:  usernsMode,
-		Mounts:      mountList,
+		MountsFlag:  c.StringArray("mount"),
 		Volumes:     c.StringArray("volume"),
 		WorkDir:     workDir,
 		Rootfs:      rootfs,
 		VolumesFrom: c.StringSlice("volumes-from"),
 		Syslog:      c.Bool("syslog"),
 	}
-	if c.Bool("init") {
-		initPath := c.String("init-path")
-		if initPath == "" {
-			rtc, err := runtime.GetConfig()
-			if err != nil {
-				return nil, err
-			}
-			initPath = rtc.InitPath
-		}
-		if err := config.AddContainerInitBinary(initPath); err != nil {
-			return nil, err
-		}
-	}
 
 	if config.Privileged {
 		config.LabelOpts = label.DisableSecOpt()
 	} else {
-		if err := parseSecurityOpt(config, c.StringArray("security-opt")); err != nil {
+		if err := parseSecurityOpt(config, c.StringArray("security-opt"), runtime); err != nil {
 			return nil, err
 		}
 	}
@@ -727,12 +712,7 @@ func ParseCreateOpts(ctx context.Context, c *GenericCLIResults, runtime *libpod.
 }
 
 func CreateContainerFromCreateConfig(r *libpod.Runtime, createConfig *cc.CreateConfig, ctx context.Context, pod *libpod.Pod) (*libpod.Container, error) {
-	runtimeSpec, err := cc.CreateConfigToOCISpec(createConfig)
-	if err != nil {
-		return nil, err
-	}
-
-	options, err := createConfig.GetContainerCreateOptions(r, pod)
+	runtimeSpec, options, err := createConfig.MakeContainerConfig(r, pod)
 	if err != nil {
 		return nil, err
 	}
diff --git a/cmd/podman/shared/create_cli.go b/cmd/podman/shared/create_cli.go
index 4f9cb1699..f731e8db5 100644
--- a/cmd/podman/shared/create_cli.go
+++ b/cmd/podman/shared/create_cli.go
@@ -2,15 +2,11 @@ package shared
 
 import (
 	"fmt"
-	"os"
-	"path/filepath"
 	"strings"
 
 	"github.com/containers/libpod/cmd/podman/shared/parse"
 	cc "github.com/containers/libpod/pkg/spec"
 	"github.com/containers/libpod/pkg/sysinfo"
-	"github.com/docker/go-units"
-	spec "github.com/opencontainers/runtime-spec/specs-go"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
 )
@@ -78,186 +74,6 @@ func addWarning(warnings []string, msg string) []string {
 	return append(warnings, msg)
 }
 
-// Format supported.
-// podman run --mount type=bind,src=/etc/resolv.conf,target=/etc/resolv.conf ...
-// podman run --mount type=tmpfs,target=/dev/shm ..
-func parseMounts(mounts []string) ([]spec.Mount, error) {
-	// TODO(vrothberg): the manual parsing can be replaced with a regular expression
-	//                  to allow a more robust parsing of the mount format and to give
-	//                  precise errors regarding supported format versus suppored options.
-	var mountList []spec.Mount
-	errInvalidSyntax := errors.Errorf("incorrect mount format: should be --mount type=<bind|tmpfs>,[src=<host-dir>,]target=<ctr-dir>[,options]")
-	for _, mount := range mounts {
-		var tokenCount int
-		var mountInfo spec.Mount
-
-		arr := strings.SplitN(mount, ",", 2)
-		if len(arr) < 2 {
-			return nil, errors.Wrapf(errInvalidSyntax, "%q", mount)
-		}
-		kv := strings.Split(arr[0], "=")
-		if kv[0] != "type" {
-			return nil, errors.Wrapf(errInvalidSyntax, "%q", mount)
-		}
-		switch kv[1] {
-		case "bind":
-			mountInfo.Type = string(cc.TypeBind)
-		case "tmpfs":
-			mountInfo.Type = string(cc.TypeTmpfs)
-			mountInfo.Source = string(cc.TypeTmpfs)
-			mountInfo.Options = append(mountInfo.Options, []string{"rprivate", "noexec", "nosuid", "nodev", "size=65536k"}...)
-
-		default:
-			return nil, errors.Errorf("invalid filesystem type %q", kv[1])
-		}
-
-		tokens := strings.Split(arr[1], ",")
-		for i, val := range tokens {
-			if i == (tokenCount - 1) {
-				//Parse tokens before options.
-				break
-			}
-			kv := strings.Split(val, "=")
-			switch kv[0] {
-			case "ro", "nosuid", "nodev", "noexec":
-				mountInfo.Options = append(mountInfo.Options, kv[0])
-			case "shared", "rshared", "private", "rprivate", "slave", "rslave", "Z", "z":
-				if mountInfo.Type != "bind" {
-					return nil, errors.Errorf("%s can only be used with bind mounts", kv[0])
-				}
-				mountInfo.Options = append(mountInfo.Options, kv[0])
-			case "tmpfs-mode":
-				if mountInfo.Type != "tmpfs" {
-					return nil, errors.Errorf("%s can only be used with tmpfs mounts", kv[0])
-				}
-				mountInfo.Options = append(mountInfo.Options, fmt.Sprintf("mode=%s", kv[1]))
-			case "tmpfs-size":
-				if mountInfo.Type != "tmpfs" {
-					return nil, errors.Errorf("%s can only be used with tmpfs mounts", kv[0])
-				}
-				shmSize, err := units.FromHumanSize(kv[1])
-				if err != nil {
-					return nil, errors.Wrapf(err, "unable to translate tmpfs-size")
-				}
-
-				mountInfo.Options = append(mountInfo.Options, fmt.Sprintf("size=%d", shmSize))
-
-			case "bind-propagation":
-				if mountInfo.Type != "bind" {
-					return nil, errors.Errorf("%s can only be used with bind mounts", kv[0])
-				}
-				mountInfo.Options = append(mountInfo.Options, kv[1])
-			case "src", "source":
-				if mountInfo.Type == "tmpfs" {
-					return nil, errors.Errorf("cannot use src= on a tmpfs file system")
-				}
-				if err := ValidateVolumeHostDir(kv[1]); err != nil {
-					return nil, err
-				}
-				mountInfo.Source = kv[1]
-			case "target", "dst", "destination":
-				if err := ValidateVolumeCtrDir(kv[1]); err != nil {
-					return nil, err
-				}
-				mountInfo.Destination = kv[1]
-			default:
-				return nil, errors.Errorf("incorrect mount option : %s", kv[0])
-			}
-		}
-		mountList = append(mountList, mountInfo)
-	}
-	return mountList, nil
-}
-
-func parseVolumes(volumes []string) error {
-	for _, volume := range volumes {
-		arr := strings.SplitN(volume, ":", 3)
-		if len(arr) < 2 {
-			return errors.Errorf("incorrect volume format %q, should be host-dir:ctr-dir[:option]", volume)
-		}
-		if err := ValidateVolumeHostDir(arr[0]); err != nil {
-			return err
-		}
-		if err := ValidateVolumeCtrDir(arr[1]); err != nil {
-			return err
-		}
-		if len(arr) > 2 {
-			if err := validateVolumeOpts(arr[2]); err != nil {
-				return err
-			}
-		}
-	}
-	return nil
-}
-
-func parseVolumesFrom(volumesFrom []string) error {
-	for _, vol := range volumesFrom {
-		arr := strings.SplitN(vol, ":", 2)
-		if len(arr) == 2 {
-			if strings.Contains(arr[1], "Z") || strings.Contains(arr[1], "private") || strings.Contains(arr[1], "slave") || strings.Contains(arr[1], "shared") {
-				return errors.Errorf("invalid options %q, can only specify 'ro', 'rw', and 'z", arr[1])
-			}
-			if err := validateVolumeOpts(arr[1]); err != nil {
-				return err
-			}
-		}
-	}
-	return nil
-}
-
-// ValidateVolumeHostDir ...
-func ValidateVolumeHostDir(hostDir string) error {
-	if len(hostDir) == 0 {
-		return errors.Errorf("host directory cannot be empty")
-	}
-	if filepath.IsAbs(hostDir) {
-		if _, err := os.Stat(hostDir); err != nil {
-			return errors.Wrapf(err, "error checking path %q", hostDir)
-		}
-	}
-	// If hostDir is not an absolute path, that means the user wants to create a
-	// named volume. This will be done later on in the code.
-	return nil
-}
-
-// ValidateVolumeCtrDir ...
-func ValidateVolumeCtrDir(ctrDir string) error {
-	if len(ctrDir) == 0 {
-		return errors.Errorf("container directory cannot be empty")
-	}
-	if !filepath.IsAbs(ctrDir) {
-		return errors.Errorf("invalid container path, must be an absolute path %q", ctrDir)
-	}
-	return nil
-}
-
-func validateVolumeOpts(option string) error {
-	var foundRootPropagation, foundRWRO, foundLabelChange int
-	options := strings.Split(option, ",")
-	for _, opt := range options {
-		switch opt {
-		case "rw", "ro":
-			foundRWRO++
-			if foundRWRO > 1 {
-				return errors.Errorf("invalid options %q, can only specify 1 'rw' or 'ro' option", option)
-			}
-		case "z", "Z":
-			foundLabelChange++
-			if foundLabelChange > 1 {
-				return errors.Errorf("invalid options %q, can only specify 1 'z' or 'Z' option", option)
-			}
-		case "private", "rprivate", "shared", "rshared", "slave", "rslave":
-			foundRootPropagation++
-			if foundRootPropagation > 1 {
-				return errors.Errorf("invalid options %q, can only specify 1 '[r]shared', '[r]private' or '[r]slave' option", option)
-			}
-		default:
-			return errors.Errorf("invalid option type %q", option)
-		}
-	}
-	return nil
-}
-
 func verifyContainerResources(config *cc.CreateConfig, update bool) ([]string, error) {
 	warnings := []string{}
 	sysInfo := sysinfo.New(true)