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-rw-r--r--pkg/specgen/config_linux.go93
-rw-r--r--pkg/specgen/config_linux_cgo.go1
-rw-r--r--pkg/specgen/container_validate.go4
-rw-r--r--pkg/specgen/generate/container.go168
-rw-r--r--pkg/specgen/generate/container_create.go (renamed from pkg/specgen/container_create.go)19
-rw-r--r--pkg/specgen/namespaces.go7
-rw-r--r--pkg/specgen/oci.go2
-rw-r--r--pkg/specgen/security.go165
-rw-r--r--pkg/specgen/specgen.go13
-rw-r--r--pkg/specgen/storage.go885
10 files changed, 1341 insertions, 16 deletions
diff --git a/pkg/specgen/config_linux.go b/pkg/specgen/config_linux.go
new file mode 100644
index 000000000..82a371492
--- /dev/null
+++ b/pkg/specgen/config_linux.go
@@ -0,0 +1,93 @@
+package specgen
+
+//func createBlockIO() (*spec.LinuxBlockIO, error) {
+// var ret *spec.LinuxBlockIO
+// bio := &spec.LinuxBlockIO{}
+// if c.Resources.BlkioWeight > 0 {
+// ret = bio
+// bio.Weight = &c.Resources.BlkioWeight
+// }
+// if len(c.Resources.BlkioWeightDevice) > 0 {
+// var lwds []spec.LinuxWeightDevice
+// ret = bio
+// for _, i := range c.Resources.BlkioWeightDevice {
+// wd, err := ValidateweightDevice(i)
+// if err != nil {
+// return ret, errors.Wrapf(err, "invalid values for blkio-weight-device")
+// }
+// wdStat, err := GetStatFromPath(wd.Path)
+// if err != nil {
+// return ret, errors.Wrapf(err, "error getting stat from path %q", wd.Path)
+// }
+// lwd := spec.LinuxWeightDevice{
+// Weight: &wd.Weight,
+// }
+// lwd.Major = int64(unix.Major(wdStat.Rdev))
+// lwd.Minor = int64(unix.Minor(wdStat.Rdev))
+// lwds = append(lwds, lwd)
+// }
+// bio.WeightDevice = lwds
+// }
+// if len(c.Resources.DeviceReadBps) > 0 {
+// ret = bio
+// readBps, err := makeThrottleArray(c.Resources.DeviceReadBps, bps)
+// if err != nil {
+// return ret, err
+// }
+// bio.ThrottleReadBpsDevice = readBps
+// }
+// if len(c.Resources.DeviceWriteBps) > 0 {
+// ret = bio
+// writeBpds, err := makeThrottleArray(c.Resources.DeviceWriteBps, bps)
+// if err != nil {
+// return ret, err
+// }
+// bio.ThrottleWriteBpsDevice = writeBpds
+// }
+// if len(c.Resources.DeviceReadIOps) > 0 {
+// ret = bio
+// readIOps, err := makeThrottleArray(c.Resources.DeviceReadIOps, iops)
+// if err != nil {
+// return ret, err
+// }
+// bio.ThrottleReadIOPSDevice = readIOps
+// }
+// if len(c.Resources.DeviceWriteIOps) > 0 {
+// ret = bio
+// writeIOps, err := makeThrottleArray(c.Resources.DeviceWriteIOps, iops)
+// if err != nil {
+// return ret, err
+// }
+// bio.ThrottleWriteIOPSDevice = writeIOps
+// }
+// return ret, nil
+//}
+
+//func makeThrottleArray(throttleInput []string, rateType int) ([]spec.LinuxThrottleDevice, error) {
+// var (
+// ltds []spec.LinuxThrottleDevice
+// t *throttleDevice
+// err error
+// )
+// for _, i := range throttleInput {
+// if rateType == bps {
+// t, err = validateBpsDevice(i)
+// } else {
+// t, err = validateIOpsDevice(i)
+// }
+// if err != nil {
+// return []spec.LinuxThrottleDevice{}, err
+// }
+// ltdStat, err := GetStatFromPath(t.path)
+// if err != nil {
+// return ltds, errors.Wrapf(err, "error getting stat from path %q", t.path)
+// }
+// ltd := spec.LinuxThrottleDevice{
+// Rate: t.rate,
+// }
+// ltd.Major = int64(unix.Major(ltdStat.Rdev))
+// ltd.Minor = int64(unix.Minor(ltdStat.Rdev))
+// ltds = append(ltds, ltd)
+// }
+// return ltds, nil
+//}
diff --git a/pkg/specgen/config_linux_cgo.go b/pkg/specgen/config_linux_cgo.go
index 6f547a40d..ef6c6e951 100644
--- a/pkg/specgen/config_linux_cgo.go
+++ b/pkg/specgen/config_linux_cgo.go
@@ -17,7 +17,6 @@ import (
func (s *SpecGenerator) getSeccompConfig(configSpec *spec.Spec, img *image.Image) (*spec.LinuxSeccomp, error) {
var seccompConfig *spec.LinuxSeccomp
var err error
-
scp, err := seccomp.LookupPolicy(s.SeccompPolicy)
if err != nil {
return nil, err
diff --git a/pkg/specgen/container_validate.go b/pkg/specgen/container_validate.go
index b27659f5f..aad14ddcb 100644
--- a/pkg/specgen/container_validate.go
+++ b/pkg/specgen/container_validate.go
@@ -14,7 +14,7 @@ var (
// SystemDValues describes the only values that SystemD can be
SystemDValues = []string{"true", "false", "always"}
// ImageVolumeModeValues describes the only values that ImageVolumeMode can be
- ImageVolumeModeValues = []string{"ignore", "tmpfs", "anonymous"}
+ ImageVolumeModeValues = []string{"ignore", "tmpfs", "bind"}
)
func exclusiveOptions(opt1, opt2 string) error {
@@ -23,7 +23,7 @@ func exclusiveOptions(opt1, opt2 string) error {
// Validate verifies that the given SpecGenerator is valid and satisfies required
// input for creating a container.
-func (s *SpecGenerator) validate() error {
+func (s *SpecGenerator) Validate() error {
//
// ContainerBasicConfig
diff --git a/pkg/specgen/generate/container.go b/pkg/specgen/generate/container.go
new file mode 100644
index 000000000..78c77fec1
--- /dev/null
+++ b/pkg/specgen/generate/container.go
@@ -0,0 +1,168 @@
+package generate
+
+import (
+ "context"
+
+ "github.com/containers/libpod/libpod"
+ ann "github.com/containers/libpod/pkg/annotations"
+ envLib "github.com/containers/libpod/pkg/env"
+ "github.com/containers/libpod/pkg/signal"
+ "github.com/containers/libpod/pkg/specgen"
+ "github.com/pkg/errors"
+ "golang.org/x/sys/unix"
+)
+
+func CompleteSpec(ctx context.Context, r *libpod.Runtime, s *specgen.SpecGenerator) error {
+
+ newImage, err := r.ImageRuntime().NewFromLocal(s.Image)
+ if err != nil {
+ return err
+ }
+
+ // Image stop signal
+ if s.StopSignal == nil && newImage.Config != nil {
+ sig, err := signal.ParseSignalNameOrNumber(newImage.Config.StopSignal)
+ if err != nil {
+ return err
+ }
+ s.StopSignal = &sig
+ }
+ // Image envs from the image if they don't exist
+ // already
+ if newImage.Config != nil && len(newImage.Config.Env) > 0 {
+ envs, err := envLib.ParseSlice(newImage.Config.Env)
+ if err != nil {
+ return err
+ }
+ for k, v := range envs {
+ if _, exists := s.Env[k]; !exists {
+ s.Env[v] = k
+ }
+ }
+ }
+
+ // labels from the image that dont exist already
+ if config := newImage.Config; config != nil {
+ for k, v := range config.Labels {
+ if _, exists := s.Labels[k]; !exists {
+ s.Labels[k] = v
+ }
+ }
+ }
+
+ // annotations
+ // in the event this container is in a pod, and the pod has an infra container
+ // we will want to configure it as a type "container" instead defaulting to
+ // the behavior of a "sandbox" container
+ // In Kata containers:
+ // - "sandbox" is the annotation that denotes the container should use its own
+ // VM, which is the default behavior
+ // - "container" denotes the container should join the VM of the SandboxID
+ // (the infra container)
+ s.Annotations = make(map[string]string)
+ if len(s.Pod) > 0 {
+ s.Annotations[ann.SandboxID] = s.Pod
+ s.Annotations[ann.ContainerType] = ann.ContainerTypeContainer
+ }
+ //
+ // Next, add annotations from the image
+ annotations, err := newImage.Annotations(ctx)
+ if err != nil {
+ return err
+ }
+ for k, v := range annotations {
+ annotations[k] = v
+ }
+
+ // entrypoint
+ if config := newImage.Config; config != nil {
+ if len(s.Entrypoint) < 1 && len(config.Entrypoint) > 0 {
+ s.Entrypoint = config.Entrypoint
+ }
+ if len(s.Command) < 1 && len(config.Cmd) > 0 {
+ s.Command = config.Cmd
+ }
+ if len(s.Command) < 1 && len(s.Entrypoint) < 1 {
+ return errors.Errorf("No command provided or as CMD or ENTRYPOINT in this image")
+ }
+ // workdir
+ if len(s.WorkDir) < 1 && len(config.WorkingDir) > 1 {
+ s.WorkDir = config.WorkingDir
+ }
+ }
+
+ if len(s.SeccompProfilePath) < 1 {
+ p, err := libpod.DefaultSeccompPath()
+ if err != nil {
+ return err
+ }
+ s.SeccompProfilePath = p
+ }
+
+ if user := s.User; len(user) == 0 {
+ switch {
+ // TODO This should be enabled when namespaces actually work
+ //case usernsMode.IsKeepID():
+ // user = fmt.Sprintf("%d:%d", rootless.GetRootlessUID(), rootless.GetRootlessGID())
+ case newImage.Config == nil || (newImage.Config != nil && len(newImage.Config.User) == 0):
+ s.User = "0"
+ default:
+ s.User = newImage.Config.User
+ }
+ }
+ if err := finishThrottleDevices(s); err != nil {
+ return err
+ }
+ return nil
+}
+
+// finishThrottleDevices takes the temporary representation of the throttle
+// devices in the specgen and looks up the major and major minors. it then
+// sets the throttle devices proper in the specgen
+func finishThrottleDevices(s *specgen.SpecGenerator) error {
+ if bps := s.ThrottleReadBpsDevice; len(bps) > 0 {
+ for k, v := range bps {
+ statT := unix.Stat_t{}
+ if err := unix.Stat(k, &statT); err != nil {
+ return err
+ }
+ v.Major = (int64(unix.Major(statT.Rdev)))
+ v.Minor = (int64(unix.Minor(statT.Rdev)))
+ s.ResourceLimits.BlockIO.ThrottleReadBpsDevice = append(s.ResourceLimits.BlockIO.ThrottleReadBpsDevice, v)
+ }
+ }
+ if bps := s.ThrottleWriteBpsDevice; len(bps) > 0 {
+ for k, v := range bps {
+ statT := unix.Stat_t{}
+ if err := unix.Stat(k, &statT); err != nil {
+ return err
+ }
+ v.Major = (int64(unix.Major(statT.Rdev)))
+ v.Minor = (int64(unix.Minor(statT.Rdev)))
+ s.ResourceLimits.BlockIO.ThrottleWriteBpsDevice = append(s.ResourceLimits.BlockIO.ThrottleWriteBpsDevice, v)
+ }
+ }
+ if iops := s.ThrottleReadIOPSDevice; len(iops) > 0 {
+ for k, v := range iops {
+ statT := unix.Stat_t{}
+ if err := unix.Stat(k, &statT); err != nil {
+ return err
+ }
+ v.Major = (int64(unix.Major(statT.Rdev)))
+ v.Minor = (int64(unix.Minor(statT.Rdev)))
+ s.ResourceLimits.BlockIO.ThrottleReadIOPSDevice = append(s.ResourceLimits.BlockIO.ThrottleReadIOPSDevice, v)
+ }
+ }
+ if iops := s.ThrottleWriteBpsDevice; len(iops) > 0 {
+ for k, v := range iops {
+ statT := unix.Stat_t{}
+ if err := unix.Stat(k, &statT); err != nil {
+ return err
+ }
+ v.Major = (int64(unix.Major(statT.Rdev)))
+ v.Minor = (int64(unix.Minor(statT.Rdev)))
+ s.ResourceLimits.BlockIO.ThrottleWriteIOPSDevice = append(s.ResourceLimits.BlockIO.ThrottleWriteIOPSDevice, v)
+ }
+ }
+ return nil
+}
diff --git a/pkg/specgen/container_create.go b/pkg/specgen/generate/container_create.go
index b4039bb91..aad59a861 100644
--- a/pkg/specgen/container_create.go
+++ b/pkg/specgen/generate/container_create.go
@@ -1,4 +1,4 @@
-package specgen
+package generate
import (
"context"
@@ -7,14 +7,15 @@ import (
"github.com/containers/common/pkg/config"
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/libpod/define"
+ "github.com/containers/libpod/pkg/specgen"
"github.com/containers/storage"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
// MakeContainer creates a container based on the SpecGenerator
-func (s *SpecGenerator) MakeContainer(rt *libpod.Runtime) (*libpod.Container, error) {
- if err := s.validate(); err != nil {
+func MakeContainer(rt *libpod.Runtime, s *specgen.SpecGenerator) (*libpod.Container, error) {
+ if err := s.Validate(); err != nil {
return nil, errors.Wrap(err, "invalid config provided")
}
rtc, err := rt.GetConfig()
@@ -22,7 +23,7 @@ func (s *SpecGenerator) MakeContainer(rt *libpod.Runtime) (*libpod.Container, er
return nil, err
}
- options, err := s.createContainerOptions(rt)
+ options, err := createContainerOptions(rt, s)
if err != nil {
return nil, err
}
@@ -31,7 +32,7 @@ func (s *SpecGenerator) MakeContainer(rt *libpod.Runtime) (*libpod.Container, er
if err != nil {
return nil, err
}
- options = append(options, s.createExitCommandOption(rt.StorageConfig(), rtc, podmanPath))
+ options = append(options, createExitCommandOption(s, rt.StorageConfig(), rtc, podmanPath))
newImage, err := rt.ImageRuntime().NewFromLocal(s.Image)
if err != nil {
return nil, err
@@ -39,14 +40,14 @@ func (s *SpecGenerator) MakeContainer(rt *libpod.Runtime) (*libpod.Container, er
options = append(options, libpod.WithRootFSFromImage(newImage.ID(), s.Image, s.RawImageName))
- runtimeSpec, err := s.toOCISpec(rt, newImage)
+ runtimeSpec, err := s.ToOCISpec(rt, newImage)
if err != nil {
return nil, err
}
return rt.NewContainer(context.Background(), runtimeSpec, options...)
}
-func (s *SpecGenerator) createContainerOptions(rt *libpod.Runtime) ([]libpod.CtrCreateOption, error) {
+func createContainerOptions(rt *libpod.Runtime, s *specgen.SpecGenerator) ([]libpod.CtrCreateOption, error) {
var options []libpod.CtrCreateOption
var err error
@@ -114,7 +115,7 @@ func (s *SpecGenerator) createContainerOptions(rt *libpod.Runtime) ([]libpod.Ctr
options = append(options, libpod.WithPrivileged(s.Privileged))
// Get namespace related options
- namespaceOptions, err := s.generateNamespaceContainerOpts(rt)
+ namespaceOptions, err := s.GenerateNamespaceContainerOpts(rt)
if err != nil {
return nil, err
}
@@ -149,7 +150,7 @@ func (s *SpecGenerator) createContainerOptions(rt *libpod.Runtime) ([]libpod.Ctr
return options, nil
}
-func (s *SpecGenerator) createExitCommandOption(storageConfig storage.StoreOptions, config *config.Config, podmanPath string) libpod.CtrCreateOption {
+func createExitCommandOption(s *specgen.SpecGenerator, storageConfig storage.StoreOptions, config *config.Config, podmanPath string) libpod.CtrCreateOption {
// We need a cleanup process for containers in the current model.
// But we can't assume that the caller is Podman - it could be another
// user of the API.
diff --git a/pkg/specgen/namespaces.go b/pkg/specgen/namespaces.go
index fa2dee77d..2a7bb3495 100644
--- a/pkg/specgen/namespaces.go
+++ b/pkg/specgen/namespaces.go
@@ -16,6 +16,9 @@ import (
type NamespaceMode string
const (
+ // Default indicates the spec generator should determine
+ // a sane default
+ Default NamespaceMode = "default"
// Host means the the namespace is derived from
// the host
Host NamespaceMode = "host"
@@ -83,7 +86,7 @@ func validateNetNS(n *Namespace) error {
return nil
}
-// validate perform simple validation on the namespace to make sure it is not
+// Validate perform simple validation on the namespace to make sure it is not
// invalid from the get-go
func (n *Namespace) validate() error {
if n == nil {
@@ -103,7 +106,7 @@ func (n *Namespace) validate() error {
return nil
}
-func (s *SpecGenerator) generateNamespaceContainerOpts(rt *libpod.Runtime) ([]libpod.CtrCreateOption, error) {
+func (s *SpecGenerator) GenerateNamespaceContainerOpts(rt *libpod.Runtime) ([]libpod.CtrCreateOption, error) {
var portBindings []ocicni.PortMapping
options := make([]libpod.CtrCreateOption, 0)
diff --git a/pkg/specgen/oci.go b/pkg/specgen/oci.go
index db60dc25e..0756782b4 100644
--- a/pkg/specgen/oci.go
+++ b/pkg/specgen/oci.go
@@ -11,7 +11,7 @@ import (
"github.com/opencontainers/runtime-tools/generate"
)
-func (s *SpecGenerator) toOCISpec(rt *libpod.Runtime, newImage *image.Image) (*spec.Spec, error) {
+func (s *SpecGenerator) ToOCISpec(rt *libpod.Runtime, newImage *image.Image) (*spec.Spec, error) {
var (
inUserNS bool
)
diff --git a/pkg/specgen/security.go b/pkg/specgen/security.go
new file mode 100644
index 000000000..158e4a7b3
--- /dev/null
+++ b/pkg/specgen/security.go
@@ -0,0 +1,165 @@
+package specgen
+
+// ToCreateOptions convert the SecurityConfig to a slice of container create
+// options.
+/*
+func (c *SecurityConfig) ToCreateOptions() ([]libpod.CtrCreateOption, error) {
+ options := make([]libpod.CtrCreateOption, 0)
+ options = append(options, libpod.WithSecLabels(c.LabelOpts))
+ options = append(options, libpod.WithPrivileged(c.Privileged))
+ return options, nil
+}
+*/
+
+// SetLabelOpts sets the label options of the SecurityConfig according to the
+// input.
+/*
+func (c *SecurityConfig) SetLabelOpts(runtime *libpod.Runtime, pidConfig *PidConfig, ipcConfig *IpcConfig) error {
+ if c.Privileged {
+ c.LabelOpts = label.DisableSecOpt()
+ return nil
+ }
+
+ var labelOpts []string
+ if pidConfig.PidMode.IsHost() {
+ labelOpts = append(labelOpts, label.DisableSecOpt()...)
+ } else if pidConfig.PidMode.IsContainer() {
+ ctr, err := runtime.LookupContainer(pidConfig.PidMode.Container())
+ if err != nil {
+ return errors.Wrapf(err, "container %q not found", pidConfig.PidMode.Container())
+ }
+ secopts, err := label.DupSecOpt(ctr.ProcessLabel())
+ if err != nil {
+ return errors.Wrapf(err, "failed to duplicate label %q ", ctr.ProcessLabel())
+ }
+ labelOpts = append(labelOpts, secopts...)
+ }
+
+ if ipcConfig.IpcMode.IsHost() {
+ labelOpts = append(labelOpts, label.DisableSecOpt()...)
+ } else if ipcConfig.IpcMode.IsContainer() {
+ ctr, err := runtime.LookupContainer(ipcConfig.IpcMode.Container())
+ if err != nil {
+ return errors.Wrapf(err, "container %q not found", ipcConfig.IpcMode.Container())
+ }
+ secopts, err := label.DupSecOpt(ctr.ProcessLabel())
+ if err != nil {
+ return errors.Wrapf(err, "failed to duplicate label %q ", ctr.ProcessLabel())
+ }
+ labelOpts = append(labelOpts, secopts...)
+ }
+
+ c.LabelOpts = append(c.LabelOpts, labelOpts...)
+ return nil
+}
+*/
+
+// SetSecurityOpts the the security options (labels, apparmor, seccomp, etc.).
+func SetSecurityOpts(securityOpts []string) error {
+ return nil
+}
+
+// ConfigureGenerator configures the generator according to the input.
+/*
+func (c *SecurityConfig) ConfigureGenerator(g *generate.Generator, user *UserConfig) error {
+ // HANDLE CAPABILITIES
+ // NOTE: Must happen before SECCOMP
+ if c.Privileged {
+ g.SetupPrivileged(true)
+ }
+
+ useNotRoot := func(user string) bool {
+ if user == "" || user == "root" || user == "0" {
+ return false
+ }
+ return true
+ }
+
+ configSpec := g.Config
+ var err error
+ var defaultCaplist []string
+ bounding := configSpec.Process.Capabilities.Bounding
+ if useNotRoot(user.User) {
+ configSpec.Process.Capabilities.Bounding = defaultCaplist
+ }
+ defaultCaplist, err = capabilities.MergeCapabilities(configSpec.Process.Capabilities.Bounding, c.CapAdd, c.CapDrop)
+ if err != nil {
+ return err
+ }
+
+ privCapRequired := []string{}
+
+ if !c.Privileged && len(c.CapRequired) > 0 {
+ // Pass CapRequired in CapAdd field to normalize capabilities names
+ capRequired, err := capabilities.MergeCapabilities(nil, c.CapRequired, nil)
+ if err != nil {
+ logrus.Errorf("capabilities requested by user or image are not valid: %q", strings.Join(c.CapRequired, ","))
+ } else {
+ // Verify all capRequiered are in the defaultCapList
+ for _, cap := range capRequired {
+ if !util.StringInSlice(cap, defaultCaplist) {
+ privCapRequired = append(privCapRequired, cap)
+ }
+ }
+ }
+ if len(privCapRequired) == 0 {
+ defaultCaplist = capRequired
+ } else {
+ logrus.Errorf("capabilities requested by user or image are not allowed by default: %q", strings.Join(privCapRequired, ","))
+ }
+ }
+ configSpec.Process.Capabilities.Bounding = defaultCaplist
+ configSpec.Process.Capabilities.Permitted = defaultCaplist
+ configSpec.Process.Capabilities.Inheritable = defaultCaplist
+ configSpec.Process.Capabilities.Effective = defaultCaplist
+ configSpec.Process.Capabilities.Ambient = defaultCaplist
+ if useNotRoot(user.User) {
+ defaultCaplist, err = capabilities.MergeCapabilities(bounding, c.CapAdd, c.CapDrop)
+ if err != nil {
+ return err
+ }
+ }
+ configSpec.Process.Capabilities.Bounding = defaultCaplist
+
+ // HANDLE SECCOMP
+ if c.SeccompProfilePath != "unconfined" {
+ seccompConfig, err := getSeccompConfig(c, configSpec)
+ if err != nil {
+ return err
+ }
+ configSpec.Linux.Seccomp = seccompConfig
+ }
+
+ // Clear default Seccomp profile from Generator for privileged containers
+ if c.SeccompProfilePath == "unconfined" || c.Privileged {
+ configSpec.Linux.Seccomp = nil
+ }
+
+ for _, opt := range c.SecurityOpts {
+ // Split on both : and =
+ splitOpt := strings.Split(opt, "=")
+ if len(splitOpt) == 1 {
+ splitOpt = strings.Split(opt, ":")
+ }
+ if len(splitOpt) < 2 {
+ continue
+ }
+ switch splitOpt[0] {
+ case "label":
+ configSpec.Annotations[libpod.InspectAnnotationLabel] = splitOpt[1]
+ case "seccomp":
+ configSpec.Annotations[libpod.InspectAnnotationSeccomp] = splitOpt[1]
+ case "apparmor":
+ configSpec.Annotations[libpod.InspectAnnotationApparmor] = splitOpt[1]
+ }
+ }
+
+ g.SetRootReadonly(c.ReadOnlyRootfs)
+ for sysctlKey, sysctlVal := range c.Sysctl {
+ g.AddLinuxSysctl(sysctlKey, sysctlVal)
+ }
+
+ return nil
+}
+
+*/
diff --git a/pkg/specgen/specgen.go b/pkg/specgen/specgen.go
index 89c76c273..2e6dd9c1d 100644
--- a/pkg/specgen/specgen.go
+++ b/pkg/specgen/specgen.go
@@ -4,8 +4,9 @@ import (
"net"
"syscall"
- "github.com/containers/image/v5/manifest"
"github.com/containers/libpod/libpod"
+
+ "github.com/containers/image/v5/manifest"
"github.com/containers/libpod/pkg/rootless"
"github.com/containers/storage"
"github.com/cri-o/ocicni/pkg/ocicni"
@@ -371,6 +372,16 @@ type ContainerResourceConfig struct {
// processes to kill for the container's process.
// Optional.
OOMScoreAdj *int `json:"oom_score_adj,omitempty"`
+ // Weight per cgroup per device, can override BlkioWeight
+ WeightDevice map[string]spec.LinuxWeightDevice `json:"weightDevice,omitempty"`
+ // IO read rate limit per cgroup per device, bytes per second
+ ThrottleReadBpsDevice map[string]spec.LinuxThrottleDevice `json:"throttleReadBpsDevice,omitempty"`
+ // IO write rate limit per cgroup per device, bytes per second
+ ThrottleWriteBpsDevice map[string]spec.LinuxThrottleDevice `json:"throttleWriteBpsDevice,omitempty"`
+ // IO read rate limit per cgroup per device, IO per second
+ ThrottleReadIOPSDevice map[string]spec.LinuxThrottleDevice `json:"throttleReadIOPSDevice,omitempty"`
+ // IO write rate limit per cgroup per device, IO per second
+ ThrottleWriteIOPSDevice map[string]spec.LinuxThrottleDevice `json:"throttleWriteIOPSDevice,omitempty"`
}
// ContainerHealthCheckConfig describes a container healthcheck with attributes
diff --git a/pkg/specgen/storage.go b/pkg/specgen/storage.go
new file mode 100644
index 000000000..1b903f608
--- /dev/null
+++ b/pkg/specgen/storage.go
@@ -0,0 +1,885 @@
+package specgen
+
+//nolint
+
+import (
+ "fmt"
+ "path"
+ "path/filepath"
+ "strings"
+
+ "github.com/containers/libpod/libpod"
+
+ "github.com/containers/buildah/pkg/parse"
+ "github.com/containers/libpod/pkg/util"
+ spec "github.com/opencontainers/runtime-spec/specs-go"
+ "github.com/pkg/errors"
+ "github.com/sirupsen/logrus"
+)
+
+const (
+ // TypeBind is the type for mounting host dir
+ TypeBind = "bind"
+ // TypeVolume is the type for named volumes
+ TypeVolume = "volume"
+ // TypeTmpfs is the type for mounting tmpfs
+ TypeTmpfs = "tmpfs"
+)
+
+var (
+ errDuplicateDest = errors.Errorf("duplicate mount destination") //nolint
+ optionArgError = errors.Errorf("must provide an argument for option") //nolint
+ noDestError = errors.Errorf("must set volume destination") //nolint
+)
+
+// Parse all volume-related options in the create config into a set of mounts
+// and named volumes to add to the container.
+// Handles --volumes-from, --volumes, --tmpfs, --init, and --init-path flags.
+// TODO: Named volume options - should we default to rprivate? It bakes into a
+// bind mount under the hood...
+// TODO: handle options parsing/processing via containers/storage/pkg/mount
+func (s *SpecGenerator) parseVolumes(mounts, volMounts, tmpMounts []string) error { //nolint
+
+ // TODO this needs to come from the image and erquires a runtime
+
+ // Add image volumes.
+ //baseMounts, baseVolumes, err := config.getImageVolumes()
+ //if err != nil {
+ // return nil, nil, err
+ //}
+
+ // Add --volumes-from.
+ // Overrides image volumes unconditionally.
+ //vFromMounts, vFromVolumes, err := config.getVolumesFrom(runtime)
+ //if err != nil {
+ // return nil, nil, err
+ //}
+ //for dest, mount := range vFromMounts {
+ // baseMounts[dest] = mount
+ //}
+ //for dest, volume := range vFromVolumes {
+ // baseVolumes[dest] = volume
+ //}
+
+ // Next mounts from the --mounts flag.
+ // Do not override yet.
+ //unifiedMounts, _, err := getMounts(mounts)
+ //if err != nil {
+ // return err
+ //}
+ //
+ //// Next --volumes flag.
+ //// Do not override yet.
+ //volumeMounts, _ , err := getVolumeMounts(volMounts)
+ //if err != nil {
+ // return err
+ //}
+ //
+ //// Next --tmpfs flag.
+ //// Do not override yet.
+ //tmpfsMounts, err := getTmpfsMounts(tmpMounts)
+ //if err != nil {
+ // return err
+ //}
+
+ //// Unify mounts from --mount, --volume, --tmpfs.
+ //// Also add mounts + volumes directly from createconfig.
+ //// Start with --volume.
+ //for dest, mount := range volumeMounts {
+ // if _, ok := unifiedMounts[dest]; ok {
+ // return nil, nil, errors.Wrapf(errDuplicateDest, dest)
+ // }
+ // unifiedMounts[dest] = mount
+ //}
+ //for dest, volume := range volumeVolumes {
+ // if _, ok := unifiedVolumes[dest]; ok {
+ // return nil, nil, errors.Wrapf(errDuplicateDest, dest)
+ // }
+ // unifiedVolumes[dest] = volume
+ //}
+ //// Now --tmpfs
+ //for dest, tmpfs := range tmpfsMounts {
+ // if _, ok := unifiedMounts[dest]; ok {
+ // return nil, nil, errors.Wrapf(errDuplicateDest, dest)
+ // }
+ // unifiedMounts[dest] = tmpfs
+ //}
+ //// Now spec mounts and volumes
+ //for _, mount := range config.Mounts {
+ // dest := mount.Destination
+ // if _, ok := unifiedMounts[dest]; ok {
+ // return nil, nil, errors.Wrapf(errDuplicateDest, dest)
+ // }
+ // unifiedMounts[dest] = mount
+ //}
+ //for _, volume := range config.NamedVolumes {
+ // dest := volume.Dest
+ // if _, ok := unifiedVolumes[dest]; ok {
+ // return nil, nil, errors.Wrapf(errDuplicateDest, dest)
+ // }
+ // unifiedVolumes[dest] = volume
+ //}
+ //
+ //// If requested, add container init binary
+ //if config.Init {
+ // initPath := config.InitPath
+ // if initPath == "" {
+ // rtc, err := runtime.GetConfig()
+ // if err != nil {
+ // return nil, nil, err
+ // }
+ // initPath = rtc.Engine.InitPath
+ // }
+ // initMount, err := config.addContainerInitBinary(initPath)
+ // if err != nil {
+ // return nil, nil, err
+ // }
+ // if _, ok := unifiedMounts[initMount.Destination]; ok {
+ // return nil, nil, errors.Wrapf(errDuplicateDest, "conflict with mount added by --init to %q", initMount.Destination)
+ // }
+ // unifiedMounts[initMount.Destination] = initMount
+ //}
+ //
+ //// Before superseding, we need to find volume mounts which conflict with
+ //// named volumes, and vice versa.
+ //// We'll delete the conflicts here as we supersede.
+ //for dest := range unifiedMounts {
+ // if _, ok := baseVolumes[dest]; ok {
+ // delete(baseVolumes, dest)
+ // }
+ //}
+ //for dest := range unifiedVolumes {
+ // if _, ok := baseMounts[dest]; ok {
+ // delete(baseMounts, dest)
+ // }
+ //}
+ //
+ //// Supersede volumes-from/image volumes with unified volumes from above.
+ //// This is an unconditional replacement.
+ //for dest, mount := range unifiedMounts {
+ // baseMounts[dest] = mount
+ //}
+ //for dest, volume := range unifiedVolumes {
+ // baseVolumes[dest] = volume
+ //}
+ //
+ //// If requested, add tmpfs filesystems for read-only containers.
+ //if config.Security.ReadOnlyRootfs && config.Security.ReadOnlyTmpfs {
+ // readonlyTmpfs := []string{"/tmp", "/var/tmp", "/run"}
+ // options := []string{"rw", "rprivate", "nosuid", "nodev", "tmpcopyup"}
+ // for _, dest := range readonlyTmpfs {
+ // if _, ok := baseMounts[dest]; ok {
+ // continue
+ // }
+ // if _, ok := baseVolumes[dest]; ok {
+ // continue
+ // }
+ // localOpts := options
+ // if dest == "/run" {
+ // localOpts = append(localOpts, "noexec", "size=65536k")
+ // } else {
+ // localOpts = append(localOpts, "exec")
+ // }
+ // baseMounts[dest] = spec.Mount{
+ // Destination: dest,
+ // Type: "tmpfs",
+ // Source: "tmpfs",
+ // Options: localOpts,
+ // }
+ // }
+ //}
+ //
+ //// Check for conflicts between named volumes and mounts
+ //for dest := range baseMounts {
+ // if _, ok := baseVolumes[dest]; ok {
+ // return nil, nil, errors.Wrapf(errDuplicateDest, "conflict at mount destination %v", dest)
+ // }
+ //}
+ //for dest := range baseVolumes {
+ // if _, ok := baseMounts[dest]; ok {
+ // return nil, nil, errors.Wrapf(errDuplicateDest, "conflict at mount destination %v", dest)
+ // }
+ //}
+ //
+ //// Final step: maps to arrays
+ //finalMounts := make([]spec.Mount, 0, len(baseMounts))
+ //for _, mount := range baseMounts {
+ // if mount.Type == TypeBind {
+ // absSrc, err := filepath.Abs(mount.Source)
+ // if err != nil {
+ // return nil, nil, errors.Wrapf(err, "error getting absolute path of %s", mount.Source)
+ // }
+ // mount.Source = absSrc
+ // }
+ // finalMounts = append(finalMounts, mount)
+ //}
+ //finalVolumes := make([]*define.ContainerNamedVolume, 0, len(baseVolumes))
+ //for _, volume := range baseVolumes {
+ // finalVolumes = append(finalVolumes, volume)
+ //}
+
+ //return finalMounts, finalVolumes, nil
+ return nil
+}
+
+// Parse volumes from - a set of containers whose volumes we will mount in.
+// Grab the containers, retrieve any user-created spec mounts and all named
+// volumes, and return a list of them.
+// Conflicts are resolved simply - the last container specified wins.
+// Container names may be suffixed by mount options after a colon.
+// TODO: We should clean these paths if possible
+// TODO deferred baude
+func getVolumesFrom() (map[string]spec.Mount, map[string]*libpod.ContainerNamedVolume, error) { //nolint
+ // Both of these are maps of mount destination to mount type.
+ // We ensure that each destination is only mounted to once in this way.
+ //finalMounts := make(map[string]spec.Mount)
+ //finalNamedVolumes := make(map[string]*define.ContainerNamedVolume)
+ //
+ //for _, vol := range config.VolumesFrom {
+ // var (
+ // options = []string{}
+ // err error
+ // splitVol = strings.SplitN(vol, ":", 2)
+ // )
+ // if len(splitVol) == 2 {
+ // splitOpts := strings.Split(splitVol[1], ",")
+ // for _, checkOpt := range splitOpts {
+ // switch checkOpt {
+ // case "z", "ro", "rw":
+ // // Do nothing, these are valid options
+ // default:
+ // return nil, nil, errors.Errorf("invalid options %q, can only specify 'ro', 'rw', and 'z'", splitVol[1])
+ // }
+ // }
+ //
+ // if options, err = parse.ValidateVolumeOpts(splitOpts); err != nil {
+ // return nil, nil, err
+ // }
+ // }
+ // ctr, err := runtime.LookupContainer(splitVol[0])
+ // if err != nil {
+ // return nil, nil, errors.Wrapf(err, "error looking up container %q for volumes-from", splitVol[0])
+ // }
+ //
+ // logrus.Debugf("Adding volumes from container %s", ctr.ID())
+ //
+ // // Look up the container's user volumes. This gets us the
+ // // destinations of all mounts the user added to the container.
+ // userVolumesArr := ctr.UserVolumes()
+ //
+ // // We're going to need to access them a lot, so convert to a map
+ // // to reduce looping.
+ // // We'll also use the map to indicate if we missed any volumes along the way.
+ // userVolumes := make(map[string]bool)
+ // for _, dest := range userVolumesArr {
+ // userVolumes[dest] = false
+ // }
+ //
+ // // Now we get the container's spec and loop through its volumes
+ // // and append them in if we can find them.
+ // spec := ctr.Spec()
+ // if spec == nil {
+ // return nil, nil, errors.Errorf("error retrieving container %s spec for volumes-from", ctr.ID())
+ // }
+ // for _, mnt := range spec.Mounts {
+ // if mnt.Type != TypeBind {
+ // continue
+ // }
+ // if _, exists := userVolumes[mnt.Destination]; exists {
+ // userVolumes[mnt.Destination] = true
+ //
+ // if len(options) != 0 {
+ // mnt.Options = options
+ // }
+ //
+ // if _, ok := finalMounts[mnt.Destination]; ok {
+ // logrus.Debugf("Overriding mount to %s with new mount from container %s", mnt.Destination, ctr.ID())
+ // }
+ // finalMounts[mnt.Destination] = mnt
+ // }
+ // }
+ //
+ // // We're done with the spec mounts. Add named volumes.
+ // // Add these unconditionally - none of them are automatically
+ // // part of the container, as some spec mounts are.
+ // namedVolumes := ctr.NamedVolumes()
+ // for _, namedVol := range namedVolumes {
+ // if _, exists := userVolumes[namedVol.Dest]; exists {
+ // userVolumes[namedVol.Dest] = true
+ // }
+ //
+ // if len(options) != 0 {
+ // namedVol.Options = options
+ // }
+ //
+ // if _, ok := finalMounts[namedVol.Dest]; ok {
+ // logrus.Debugf("Overriding named volume mount to %s with new named volume from container %s", namedVol.Dest, ctr.ID())
+ // }
+ // finalNamedVolumes[namedVol.Dest] = namedVol
+ // }
+ //
+ // // Check if we missed any volumes
+ // for volDest, found := range userVolumes {
+ // if !found {
+ // logrus.Warnf("Unable to match volume %s from container %s for volumes-from", volDest, ctr.ID())
+ // }
+ // }
+ //}
+ //
+ //return finalMounts, finalNamedVolumes, nil
+ return nil, nil, nil
+}
+
+// getMounts takes user-provided input from the --mount flag and creates OCI
+// spec mounts and Libpod named volumes.
+// podman run --mount type=bind,src=/etc/resolv.conf,target=/etc/resolv.conf ...
+// podman run --mount type=tmpfs,target=/dev/shm ...
+// podman run --mount type=volume,source=test-volume, ...
+func getMounts(mounts []string) (map[string]spec.Mount, map[string]*libpod.ContainerNamedVolume, error) { //nolint
+ finalMounts := make(map[string]spec.Mount)
+ finalNamedVolumes := make(map[string]*libpod.ContainerNamedVolume)
+
+ errInvalidSyntax := errors.Errorf("incorrect mount format: should be --mount type=<bind|tmpfs|volume>,[src=<host-dir|volume-name>,]target=<ctr-dir>[,options]")
+
+ // 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 supported options.
+ for _, mount := range mounts {
+ arr := strings.SplitN(mount, ",", 2)
+ if len(arr) < 2 {
+ return nil, nil, errors.Wrapf(errInvalidSyntax, "%q", mount)
+ }
+ kv := strings.Split(arr[0], "=")
+ // TODO: type is not explicitly required in Docker.
+ // If not specified, it defaults to "volume".
+ if len(kv) != 2 || kv[0] != "type" {
+ return nil, nil, errors.Wrapf(errInvalidSyntax, "%q", mount)
+ }
+
+ tokens := strings.Split(arr[1], ",")
+ switch kv[1] {
+ case TypeBind:
+ mount, err := getBindMount(tokens)
+ if err != nil {
+ return nil, nil, err
+ }
+ if _, ok := finalMounts[mount.Destination]; ok {
+ return nil, nil, errors.Wrapf(errDuplicateDest, mount.Destination)
+ }
+ finalMounts[mount.Destination] = mount
+ case TypeTmpfs:
+ mount, err := getTmpfsMount(tokens)
+ if err != nil {
+ return nil, nil, err
+ }
+ if _, ok := finalMounts[mount.Destination]; ok {
+ return nil, nil, errors.Wrapf(errDuplicateDest, mount.Destination)
+ }
+ finalMounts[mount.Destination] = mount
+ case "volume":
+ volume, err := getNamedVolume(tokens)
+ if err != nil {
+ return nil, nil, err
+ }
+ if _, ok := finalNamedVolumes[volume.Dest]; ok {
+ return nil, nil, errors.Wrapf(errDuplicateDest, volume.Dest)
+ }
+ finalNamedVolumes[volume.Dest] = volume
+ default:
+ return nil, nil, errors.Errorf("invalid filesystem type %q", kv[1])
+ }
+ }
+
+ return finalMounts, finalNamedVolumes, nil
+}
+
+// Parse a single bind mount entry from the --mount flag.
+func getBindMount(args []string) (spec.Mount, error) { //nolint
+ newMount := spec.Mount{
+ Type: TypeBind,
+ }
+
+ var setSource, setDest, setRORW, setSuid, setDev, setExec, setRelabel bool
+
+ for _, val := range args {
+ kv := strings.Split(val, "=")
+ switch kv[0] {
+ case "bind-nonrecursive":
+ newMount.Options = append(newMount.Options, "bind")
+ case "ro", "rw":
+ if setRORW {
+ return newMount, errors.Wrapf(optionArgError, "cannot pass 'ro' or 'rw' options more than once")
+ }
+ setRORW = true
+ // Can be formatted as one of:
+ // ro
+ // ro=[true|false]
+ // rw
+ // rw=[true|false]
+ switch len(kv) {
+ case 1:
+ newMount.Options = append(newMount.Options, kv[0])
+ case 2:
+ switch strings.ToLower(kv[1]) {
+ case "true":
+ newMount.Options = append(newMount.Options, kv[0])
+ case "false":
+ // Set the opposite only for rw
+ // ro's opposite is the default
+ if kv[0] == "rw" {
+ newMount.Options = append(newMount.Options, "ro")
+ }
+ default:
+ return newMount, errors.Wrapf(optionArgError, "%s must be set to true or false, instead received %q", kv[0], kv[1])
+ }
+ default:
+ return newMount, errors.Wrapf(optionArgError, "badly formatted option %q", val)
+ }
+ case "nosuid", "suid":
+ if setSuid {
+ return newMount, errors.Wrapf(optionArgError, "cannot pass 'nosuid' and 'suid' options more than once")
+ }
+ setSuid = true
+ newMount.Options = append(newMount.Options, kv[0])
+ case "nodev", "dev":
+ if setDev {
+ return newMount, errors.Wrapf(optionArgError, "cannot pass 'nodev' and 'dev' options more than once")
+ }
+ setDev = true
+ newMount.Options = append(newMount.Options, kv[0])
+ case "noexec", "exec":
+ if setExec {
+ return newMount, errors.Wrapf(optionArgError, "cannot pass 'noexec' and 'exec' options more than once")
+ }
+ setExec = true
+ newMount.Options = append(newMount.Options, kv[0])
+ case "shared", "rshared", "private", "rprivate", "slave", "rslave", "Z", "z":
+ newMount.Options = append(newMount.Options, kv[0])
+ case "bind-propagation":
+ if len(kv) == 1 {
+ return newMount, errors.Wrapf(optionArgError, kv[0])
+ }
+ newMount.Options = append(newMount.Options, kv[1])
+ case "src", "source":
+ if len(kv) == 1 {
+ return newMount, errors.Wrapf(optionArgError, kv[0])
+ }
+ if err := parse.ValidateVolumeHostDir(kv[1]); err != nil {
+ return newMount, err
+ }
+ newMount.Source = kv[1]
+ setSource = true
+ case "target", "dst", "destination":
+ if len(kv) == 1 {
+ return newMount, errors.Wrapf(optionArgError, kv[0])
+ }
+ if err := parse.ValidateVolumeCtrDir(kv[1]); err != nil {
+ return newMount, err
+ }
+ newMount.Destination = filepath.Clean(kv[1])
+ setDest = true
+ case "relabel":
+ if setRelabel {
+ return newMount, errors.Wrapf(optionArgError, "cannot pass 'relabel' option more than once")
+ }
+ setRelabel = true
+ if len(kv) != 2 {
+ return newMount, errors.Wrapf(util.ErrBadMntOption, "%s mount option must be 'private' or 'shared'", kv[0])
+ }
+ switch kv[1] {
+ case "private":
+ newMount.Options = append(newMount.Options, "z")
+ case "shared":
+ newMount.Options = append(newMount.Options, "Z")
+ default:
+ return newMount, errors.Wrapf(util.ErrBadMntOption, "%s mount option must be 'private' or 'shared'", kv[0])
+ }
+ default:
+ return newMount, errors.Wrapf(util.ErrBadMntOption, kv[0])
+ }
+ }
+
+ if !setDest {
+ return newMount, noDestError
+ }
+
+ if !setSource {
+ newMount.Source = newMount.Destination
+ }
+
+ options, err := parse.ValidateVolumeOpts(newMount.Options)
+ if err != nil {
+ return newMount, err
+ }
+ newMount.Options = options
+ return newMount, nil
+}
+
+// Parse a single tmpfs mount entry from the --mount flag
+func getTmpfsMount(args []string) (spec.Mount, error) { //nolint
+ newMount := spec.Mount{
+ Type: TypeTmpfs,
+ Source: TypeTmpfs,
+ }
+
+ var setDest, setRORW, setSuid, setDev, setExec, setTmpcopyup bool
+
+ for _, val := range args {
+ kv := strings.Split(val, "=")
+ switch kv[0] {
+ case "tmpcopyup", "notmpcopyup":
+ if setTmpcopyup {
+ return newMount, errors.Wrapf(optionArgError, "cannot pass 'tmpcopyup' and 'notmpcopyup' options more than once")
+ }
+ setTmpcopyup = true
+ newMount.Options = append(newMount.Options, kv[0])
+ case "ro", "rw":
+ if setRORW {
+ return newMount, errors.Wrapf(optionArgError, "cannot pass 'ro' and 'rw' options more than once")
+ }
+ setRORW = true
+ newMount.Options = append(newMount.Options, kv[0])
+ case "nosuid", "suid":
+ if setSuid {
+ return newMount, errors.Wrapf(optionArgError, "cannot pass 'nosuid' and 'suid' options more than once")
+ }
+ setSuid = true
+ newMount.Options = append(newMount.Options, kv[0])
+ case "nodev", "dev":
+ if setDev {
+ return newMount, errors.Wrapf(optionArgError, "cannot pass 'nodev' and 'dev' options more than once")
+ }
+ setDev = true
+ newMount.Options = append(newMount.Options, kv[0])
+ case "noexec", "exec":
+ if setExec {
+ return newMount, errors.Wrapf(optionArgError, "cannot pass 'noexec' and 'exec' options more than once")
+ }
+ setExec = true
+ newMount.Options = append(newMount.Options, kv[0])
+ case "tmpfs-mode":
+ if len(kv) == 1 {
+ return newMount, errors.Wrapf(optionArgError, kv[0])
+ }
+ newMount.Options = append(newMount.Options, fmt.Sprintf("mode=%s", kv[1]))
+ case "tmpfs-size":
+ if len(kv) == 1 {
+ return newMount, errors.Wrapf(optionArgError, kv[0])
+ }
+ newMount.Options = append(newMount.Options, fmt.Sprintf("size=%s", kv[1]))
+ case "src", "source":
+ return newMount, errors.Errorf("source is not supported with tmpfs mounts")
+ case "target", "dst", "destination":
+ if len(kv) == 1 {
+ return newMount, errors.Wrapf(optionArgError, kv[0])
+ }
+ if err := parse.ValidateVolumeCtrDir(kv[1]); err != nil {
+ return newMount, err
+ }
+ newMount.Destination = filepath.Clean(kv[1])
+ setDest = true
+ default:
+ return newMount, errors.Wrapf(util.ErrBadMntOption, kv[0])
+ }
+ }
+
+ if !setDest {
+ return newMount, noDestError
+ }
+
+ return newMount, nil
+}
+
+// Parse a single volume mount entry from the --mount flag.
+// Note that the volume-label option for named volumes is currently NOT supported.
+// TODO: add support for --volume-label
+func getNamedVolume(args []string) (*libpod.ContainerNamedVolume, error) { //nolint
+ newVolume := new(libpod.ContainerNamedVolume)
+
+ var setSource, setDest, setRORW, setSuid, setDev, setExec bool
+
+ for _, val := range args {
+ kv := strings.Split(val, "=")
+ switch kv[0] {
+ case "ro", "rw":
+ if setRORW {
+ return nil, errors.Wrapf(optionArgError, "cannot pass 'ro' and 'rw' options more than once")
+ }
+ setRORW = true
+ newVolume.Options = append(newVolume.Options, kv[0])
+ case "nosuid", "suid":
+ if setSuid {
+ return nil, errors.Wrapf(optionArgError, "cannot pass 'nosuid' and 'suid' options more than once")
+ }
+ setSuid = true
+ newVolume.Options = append(newVolume.Options, kv[0])
+ case "nodev", "dev":
+ if setDev {
+ return nil, errors.Wrapf(optionArgError, "cannot pass 'nodev' and 'dev' options more than once")
+ }
+ setDev = true
+ newVolume.Options = append(newVolume.Options, kv[0])
+ case "noexec", "exec":
+ if setExec {
+ return nil, errors.Wrapf(optionArgError, "cannot pass 'noexec' and 'exec' options more than once")
+ }
+ setExec = true
+ newVolume.Options = append(newVolume.Options, kv[0])
+ case "volume-label":
+ return nil, errors.Errorf("the --volume-label option is not presently implemented")
+ case "src", "source":
+ if len(kv) == 1 {
+ return nil, errors.Wrapf(optionArgError, kv[0])
+ }
+ newVolume.Name = kv[1]
+ setSource = true
+ case "target", "dst", "destination":
+ if len(kv) == 1 {
+ return nil, errors.Wrapf(optionArgError, kv[0])
+ }
+ if err := parse.ValidateVolumeCtrDir(kv[1]); err != nil {
+ return nil, err
+ }
+ newVolume.Dest = filepath.Clean(kv[1])
+ setDest = true
+ default:
+ return nil, errors.Wrapf(util.ErrBadMntOption, kv[0])
+ }
+ }
+
+ if !setSource {
+ return nil, errors.Errorf("must set source volume")
+ }
+ if !setDest {
+ return nil, noDestError
+ }
+
+ return newVolume, nil
+}
+
+func getVolumeMounts(vols []string) (map[string]spec.Mount, map[string]*libpod.ContainerNamedVolume, error) { //nolint
+ mounts := make(map[string]spec.Mount)
+ volumes := make(map[string]*libpod.ContainerNamedVolume)
+
+ volumeFormatErr := errors.Errorf("incorrect volume format, should be [host-dir:]ctr-dir[:option]")
+
+ for _, vol := range vols {
+ var (
+ options []string
+ src string
+ dest string
+ err error
+ )
+
+ splitVol := strings.Split(vol, ":")
+ if len(splitVol) > 3 {
+ return nil, nil, errors.Wrapf(volumeFormatErr, vol)
+ }
+
+ src = splitVol[0]
+ if len(splitVol) == 1 {
+ // This is an anonymous named volume. Only thing given
+ // is destination.
+ // Name/source will be blank, and populated by libpod.
+ src = ""
+ dest = splitVol[0]
+ } else if len(splitVol) > 1 {
+ dest = splitVol[1]
+ }
+ if len(splitVol) > 2 {
+ if options, err = parse.ValidateVolumeOpts(strings.Split(splitVol[2], ",")); err != nil {
+ return nil, nil, err
+ }
+ }
+
+ // Do not check source dir for anonymous volumes
+ if len(splitVol) > 1 {
+ if err := parse.ValidateVolumeHostDir(src); err != nil {
+ return nil, nil, err
+ }
+ }
+ if err := parse.ValidateVolumeCtrDir(dest); err != nil {
+ return nil, nil, err
+ }
+
+ cleanDest := filepath.Clean(dest)
+
+ if strings.HasPrefix(src, "/") || strings.HasPrefix(src, ".") {
+ // This is not a named volume
+ newMount := spec.Mount{
+ Destination: cleanDest,
+ Type: string(TypeBind),
+ Source: src,
+ Options: options,
+ }
+ if _, ok := mounts[newMount.Destination]; ok {
+ return nil, nil, errors.Wrapf(errDuplicateDest, newMount.Destination)
+ }
+ mounts[newMount.Destination] = newMount
+ } else {
+ // This is a named volume
+ newNamedVol := new(libpod.ContainerNamedVolume)
+ newNamedVol.Name = src
+ newNamedVol.Dest = cleanDest
+ newNamedVol.Options = options
+
+ if _, ok := volumes[newNamedVol.Dest]; ok {
+ return nil, nil, errors.Wrapf(errDuplicateDest, newNamedVol.Dest)
+ }
+ volumes[newNamedVol.Dest] = newNamedVol
+ }
+
+ logrus.Debugf("User mount %s:%s options %v", src, dest, options)
+ }
+
+ return mounts, volumes, nil
+}
+
+// Get mounts for container's image volumes
+// TODO deferred baude
+func getImageVolumes() (map[string]spec.Mount, map[string]*libpod.ContainerNamedVolume, error) { //nolint
+ //mounts := make(map[string]spec.Mount)
+ //volumes := make(map[string]*define.ContainerNamedVolume)
+ //
+ //if config.ImageVolumeType == "ignore" {
+ // return mounts, volumes, nil
+ //}
+ //
+ //for vol := range config.BuiltinImgVolumes {
+ // cleanDest := filepath.Clean(vol)
+ // logrus.Debugf("Adding image volume at %s", cleanDest)
+ // if config.ImageVolumeType == "tmpfs" {
+ // // Tmpfs image volumes are handled as mounts
+ // mount := spec.Mount{
+ // Destination: cleanDest,
+ // Source: TypeTmpfs,
+ // Type: TypeTmpfs,
+ // Options: []string{"rprivate", "rw", "nodev", "exec"},
+ // }
+ // mounts[cleanDest] = mount
+ // } else {
+ // // Anonymous volumes have no name.
+ // namedVolume := new(define.ContainerNamedVolume)
+ // namedVolume.Options = []string{"rprivate", "rw", "nodev", "exec"}
+ // namedVolume.Dest = cleanDest
+ // volumes[cleanDest] = namedVolume
+ // }
+ //}
+ //
+ //return mounts, volumes, nil
+ return nil, nil, nil
+}
+
+// GetTmpfsMounts creates spec.Mount structs for user-requested tmpfs mounts
+func getTmpfsMounts(mounts []string) (map[string]spec.Mount, error) { //nolint
+ m := make(map[string]spec.Mount)
+ for _, i := range mounts {
+ // Default options if nothing passed
+ var options []string
+ spliti := strings.Split(i, ":")
+ destPath := spliti[0]
+ if err := parse.ValidateVolumeCtrDir(spliti[0]); err != nil {
+ return nil, err
+ }
+ if len(spliti) > 1 {
+ options = strings.Split(spliti[1], ",")
+ }
+
+ if _, ok := m[destPath]; ok {
+ return nil, errors.Wrapf(errDuplicateDest, destPath)
+ }
+
+ mount := spec.Mount{
+ Destination: filepath.Clean(destPath),
+ Type: string(TypeTmpfs),
+ Options: options,
+ Source: string(TypeTmpfs),
+ }
+ m[destPath] = mount
+ }
+ return m, nil
+}
+
+// AddContainerInitBinary adds the init binary specified by path iff the
+// container will run in a private PID namespace that is not shared with the
+// host or another pre-existing container, where an init-like process is
+// already running.
+//
+// Note that AddContainerInitBinary prepends "/dev/init" "--" to the command
+// to execute the bind-mounted binary as PID 1.
+// TODO this needs to be worked on to work in new env
+func addContainerInitBinary(path string) (spec.Mount, error) { //nolint
+ mount := spec.Mount{
+ Destination: "/dev/init",
+ Type: TypeBind,
+ Source: path,
+ Options: []string{TypeBind, "ro"},
+ }
+
+ //if path == "" {
+ // return mount, fmt.Errorf("please specify a path to the container-init binary")
+ //}
+ //if !config.Pid.PidMode.IsPrivate() {
+ // return mount, fmt.Errorf("cannot add init binary as PID 1 (PID namespace isn't private)")
+ //}
+ //if config.Systemd {
+ // return mount, fmt.Errorf("cannot use container-init binary with systemd")
+ //}
+ //if _, err := os.Stat(path); os.IsNotExist(err) {
+ // return mount, errors.Wrap(err, "container-init binary not found on the host")
+ //}
+ //config.Command = append([]string{"/dev/init", "--"}, config.Command...)
+ return mount, nil
+}
+
+// Supersede existing mounts in the spec with new, user-specified mounts.
+// TODO: Should we unmount subtree mounts? E.g., if /tmp/ is mounted by
+// one mount, and we already have /tmp/a and /tmp/b, should we remove
+// the /tmp/a and /tmp/b mounts in favor of the more general /tmp?
+func SupercedeUserMounts(mounts []spec.Mount, configMount []spec.Mount) []spec.Mount {
+ if len(mounts) > 0 {
+ // If we have overlappings mounts, remove them from the spec in favor of
+ // the user-added volume mounts
+ destinations := make(map[string]bool)
+ for _, mount := range mounts {
+ destinations[path.Clean(mount.Destination)] = true
+ }
+ // Copy all mounts from spec to defaultMounts, except for
+ // - mounts overridden by a user supplied mount;
+ // - all mounts under /dev if a user supplied /dev is present;
+ mountDev := destinations["/dev"]
+ for _, mount := range configMount {
+ if _, ok := destinations[path.Clean(mount.Destination)]; !ok {
+ if mountDev && strings.HasPrefix(mount.Destination, "/dev/") {
+ // filter out everything under /dev if /dev is user-mounted
+ continue
+ }
+
+ logrus.Debugf("Adding mount %s", mount.Destination)
+ mounts = append(mounts, mount)
+ }
+ }
+ return mounts
+ }
+ return configMount
+}
+
+func InitFSMounts(mounts []spec.Mount) error {
+ for i, m := range mounts {
+ switch {
+ case m.Type == TypeBind:
+ opts, err := util.ProcessOptions(m.Options, false, m.Source)
+ if err != nil {
+ return err
+ }
+ mounts[i].Options = opts
+ case m.Type == TypeTmpfs && filepath.Clean(m.Destination) != "/dev":
+ opts, err := util.ProcessOptions(m.Options, true, "")
+ if err != nil {
+ return err
+ }
+ mounts[i].Options = opts
+ }
+ }
+ return nil
+}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-06 06:30:35 +0000