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Diffstat (limited to 'pkg/spec/createconfig.go')
-rw-r--r--pkg/spec/createconfig.go268
1 files changed, 22 insertions, 246 deletions
diff --git a/pkg/spec/createconfig.go b/pkg/spec/createconfig.go
index 80c7b586c..4d2d8304c 100644
--- a/pkg/spec/createconfig.go
+++ b/pkg/spec/createconfig.go
@@ -1,7 +1,6 @@
package createconfig
import (
- "fmt"
"net"
"os"
"strconv"
@@ -12,7 +11,6 @@ import (
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/pkg/namespaces"
"github.com/containers/storage"
- "github.com/containers/storage/pkg/stringid"
"github.com/cri-o/ocicni/pkg/ocicni"
"github.com/docker/go-connections/nat"
spec "github.com/opencontainers/runtime-spec/specs-go"
@@ -26,12 +24,6 @@ import (
const (
bps = iota
iops
- // TypeBind is the type for mounting host dir
- TypeBind = "bind"
- // TypeVolume is the type for remote storage volumes
- // TypeVolume = "volume" // re-enable upon use
- // TypeTmpfs is the type for mounting tmpfs
- TypeTmpfs = "tmpfs"
)
// CreateResourceConfig represents resource elements in CreateConfig
@@ -87,6 +79,8 @@ type CreateConfig struct {
HostAdd []string //add-host
Hostname string //hostname
HTTPProxy bool
+ Init bool // init
+ InitPath string //init-path
Image string
ImageID string
BuiltinImgVolumes map[string]struct{} // volumes defined in the image config
@@ -125,14 +119,16 @@ type CreateConfig struct {
UsernsMode namespaces.UsernsMode //userns
User string //user
UtsMode namespaces.UTSMode //uts
- Mounts []spec.Mount //mounts
- Volumes []string //volume
+ Mounts []spec.Mount
+ MountsFlag []string // mounts
+ NamedVolumes []*libpod.ContainerNamedVolume
+ Volumes []string //volume
VolumesFrom []string
- WorkDir string //workdir
- LabelOpts []string //SecurityOpts
- NoNewPrivs bool //SecurityOpts
- ApparmorProfile string //SecurityOpts
- SeccompProfilePath string //SecurityOpts
+ WorkDir string //workdir
+ LabelOpts []string //SecurityOpts
+ NoNewPrivs bool //SecurityOpts
+ ApparmorProfile string //SecurityOpts
+ SeccompProfilePath string //SecurityOpts
SecurityOpts []string
Rootfs string
Syslog bool // Whether to enable syslog on exit commands
@@ -146,222 +142,6 @@ func (c *CreateConfig) CreateBlockIO() (*spec.LinuxBlockIO, error) {
return c.createBlockIO()
}
-// 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.
-func (c *CreateConfig) AddContainerInitBinary(path string) error {
- if path == "" {
- return fmt.Errorf("please specify a path to the container-init binary")
- }
- if !c.PidMode.IsPrivate() {
- return fmt.Errorf("cannot add init binary as PID 1 (PID namespace isn't private)")
- }
- if c.Systemd {
- return fmt.Errorf("cannot use container-init binary with systemd")
- }
- if _, err := os.Stat(path); os.IsNotExist(err) {
- return errors.Wrap(err, "container-init binary not found on the host")
- }
- c.Command = append([]string{"/dev/init", "--"}, c.Command...)
- c.Mounts = append(c.Mounts, spec.Mount{
- Destination: "/dev/init",
- Type: TypeBind,
- Source: path,
- Options: []string{TypeBind, "ro"},
- })
- return nil
-}
-
-func processOptions(options []string) []string {
- var (
- foundrw, foundro bool
- rootProp string
- )
- options = append(options, "rbind")
- for _, opt := range options {
- switch opt {
- case "rw":
- foundrw = true
- case "ro":
- foundro = true
- case "private", "rprivate", "slave", "rslave", "shared", "rshared":
- rootProp = opt
- }
- }
- if !foundrw && !foundro {
- options = append(options, "rw")
- }
- if rootProp == "" {
- options = append(options, "rprivate")
- }
- return options
-}
-
-func (c *CreateConfig) initFSMounts() []spec.Mount {
- var mounts []spec.Mount
- for _, m := range c.Mounts {
- m.Options = processOptions(m.Options)
- if m.Type == "tmpfs" {
- m.Options = append(m.Options, "tmpcopyup")
- } else {
- mounts = append(mounts, m)
- }
- }
- return mounts
-}
-
-// GetVolumeMounts takes user provided input for bind mounts and creates Mount structs
-func (c *CreateConfig) GetVolumeMounts(specMounts []spec.Mount) ([]spec.Mount, error) {
- m := []spec.Mount{}
- for _, i := range c.Volumes {
- var options []string
- spliti := strings.Split(i, ":")
- if len(spliti) > 2 {
- options = strings.Split(spliti[2], ",")
- }
-
- m = append(m, spec.Mount{
- Destination: spliti[1],
- Type: string(TypeBind),
- Source: spliti[0],
- Options: processOptions(options),
- })
-
- logrus.Debugf("User mount %s:%s options %v", spliti[0], spliti[1], options)
- }
-
- if c.ImageVolumeType == "ignore" {
- return m, nil
- }
-
- for vol := range c.BuiltinImgVolumes {
- if libpod.MountExists(specMounts, vol) || libpod.MountExists(m, vol) {
- continue
- }
-
- mount := spec.Mount{
- Destination: vol,
- Type: c.ImageVolumeType,
- Options: []string{"rprivate", "rw", "nodev"},
- }
- if c.ImageVolumeType == "tmpfs" {
- mount.Source = "tmpfs"
- mount.Options = append(mount.Options, "tmpcopyup")
- } else {
- // TODO: Move support for this and tmpfs into libpod
- // Should tmpfs also be handled as named volumes? Wouldn't be hard
- // This will cause a new local Volume to be created on your system
- mount.Source = stringid.GenerateNonCryptoID()
- mount.Options = append(mount.Options, TypeBind)
- }
- m = append(m, mount)
- }
-
- return m, nil
-}
-
-// GetVolumesFrom reads the create-config artifact of the container to get volumes from
-// and adds it to c.Volumes of the current container.
-func (c *CreateConfig) GetVolumesFrom(runtime *libpod.Runtime) error {
- if os.Geteuid() != 0 {
- return nil
- }
-
- for _, vol := range c.VolumesFrom {
- options := ""
- splitVol := strings.SplitN(vol, ":", 2)
- if len(splitVol) == 2 {
- options = splitVol[1]
- }
- ctr, err := runtime.LookupContainer(splitVol[0])
- if err != nil {
- return errors.Wrapf(err, "error looking up container %q", 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 errors.Errorf("error retrieving container %s spec", ctr.ID())
- }
- for _, mnt := range spec.Mounts {
- if mnt.Type != TypeBind {
- continue
- }
- if _, exists := userVolumes[mnt.Destination]; exists {
- userVolumes[mnt.Destination] = true
- localOptions := options
- if localOptions == "" {
- localOptions = strings.Join(mnt.Options, ",")
- }
- c.Volumes = append(c.Volumes, fmt.Sprintf("%s:%s:%s", mnt.Source, mnt.Destination, localOptions))
- }
- }
-
- // 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
- }
- localOptions := options
- if localOptions == "" {
- localOptions = strings.Join(namedVol.Options, ",")
- }
- c.Volumes = append(c.Volumes, fmt.Sprintf("%s:%s:%s", namedVol.Name, namedVol.Dest, localOptions))
- }
-
- // 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 nil
-}
-
-//GetTmpfsMounts takes user provided input for Tmpfs mounts and creates Mount structs
-func (c *CreateConfig) GetTmpfsMounts() []spec.Mount {
- var m []spec.Mount
- for _, i := range c.Tmpfs {
- // Default options if nothing passed
- options := []string{"rprivate", "rw", "noexec", "nosuid", "nodev", "size=65536k"}
- spliti := strings.Split(i, ":")
- destPath := spliti[0]
- if len(spliti) > 1 {
- options = strings.Split(spliti[1], ",")
- }
- m = append(m, spec.Mount{
- Destination: destPath,
- Type: string(TypeTmpfs),
- Options: options,
- Source: string(TypeTmpfs),
- })
- }
- return m
-}
-
func (c *CreateConfig) createExitCommand(runtime *libpod.Runtime) ([]string, error) {
config, err := runtime.GetConfig()
if err != nil {
@@ -395,7 +175,7 @@ func (c *CreateConfig) createExitCommand(runtime *libpod.Runtime) ([]string, err
}
// GetContainerCreateOptions takes a CreateConfig and returns a slice of CtrCreateOptions
-func (c *CreateConfig) getContainerCreateOptions(runtime *libpod.Runtime, pod *libpod.Pod, namedVolumes []*libpod.ContainerNamedVolume) ([]libpod.CtrCreateOption, error) {
+func (c *CreateConfig) getContainerCreateOptions(runtime *libpod.Runtime, pod *libpod.Pod, mounts []spec.Mount, namedVolumes []*libpod.ContainerNamedVolume) ([]libpod.CtrCreateOption, error) {
var options []libpod.CtrCreateOption
var portBindings []ocicni.PortMapping
var err error
@@ -422,22 +202,18 @@ func (c *CreateConfig) getContainerCreateOptions(runtime *libpod.Runtime, pod *l
}
}
- if len(c.Volumes) != 0 {
- // Volumes consist of multiple, comma-delineated fields
- // The image spec only includes one part of that, so drop the
- // others, if they are included
- volumes := make([]string, 0, len(c.Volumes))
- for _, vol := range c.Volumes {
- // We always want the volume destination
- splitVol := strings.SplitN(vol, ":", 3)
- if len(splitVol) > 1 {
- volumes = append(volumes, splitVol[1])
- } else {
- volumes = append(volumes, splitVol[0])
- }
+ if len(mounts) != 0 || len(namedVolumes) != 0 {
+ destinations := []string{}
+
+ // Take all mount and named volume destinations.
+ for _, mount := range mounts {
+ destinations = append(destinations, mount.Destination)
+ }
+ for _, volume := range namedVolumes {
+ destinations = append(destinations, volume.Dest)
}
- options = append(options, libpod.WithUserVolumes(volumes))
+ options = append(options, libpod.WithUserVolumes(destinations))
}
if len(namedVolumes) != 0 {
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-17 04:48:43 +0000