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path: root/cmd/podman/create.go
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Diffstat (limited to 'cmd/podman/create.go')
-rw-r--r--cmd/podman/create.go856
1 files changed, 2 insertions, 854 deletions
diff --git a/cmd/podman/create.go b/cmd/podman/create.go
index 8a5d0cf73..bceb606f6 100644
--- a/cmd/podman/create.go
+++ b/cmd/podman/create.go
@@ -1,37 +1,15 @@
package main
import (
- "context"
- "encoding/json"
"fmt"
- "io"
- "io/ioutil"
"os"
- "path/filepath"
- "strconv"
- "strings"
- "syscall"
- "github.com/containers/image/manifest"
"github.com/containers/libpod/cmd/podman/cliconfig"
"github.com/containers/libpod/cmd/podman/libpodruntime"
"github.com/containers/libpod/cmd/podman/shared"
- "github.com/containers/libpod/libpod"
- "github.com/containers/libpod/libpod/image"
- ann "github.com/containers/libpod/pkg/annotations"
- "github.com/containers/libpod/pkg/inspect"
- ns "github.com/containers/libpod/pkg/namespaces"
"github.com/containers/libpod/pkg/rootless"
- cc "github.com/containers/libpod/pkg/spec"
- "github.com/containers/libpod/pkg/util"
- "github.com/docker/docker/pkg/signal"
- "github.com/docker/go-connections/nat"
- "github.com/docker/go-units"
- spec "github.com/opencontainers/runtime-spec/specs-go"
- "github.com/opencontainers/selinux/go-selinux/label"
- opentracing "github.com/opentracing/opentracing-go"
+ "github.com/opentracing/opentracing-go"
"github.com/pkg/errors"
- "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
)
@@ -53,11 +31,6 @@ var (
podman create --annotation HELLO=WORLD alpine ls
podman create -t -i --name myctr alpine ls`,
}
-
- defaultEnvVariables = map[string]string{
- "PATH": "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
- "TERM": "xterm",
- }
)
func init() {
@@ -91,7 +64,7 @@ func createCmd(c *cliconfig.CreateValues) error {
}
defer runtime.Shutdown(false)
- ctr, _, err := createContainer(&c.PodmanCommand, runtime)
+ ctr, _, err := shared.CreateContainer(getContext(), &c.PodmanCommand, runtime)
if err != nil {
return err
}
@@ -115,828 +88,3 @@ func createInit(c *cliconfig.PodmanCommand) error {
return nil
}
-
-func createContainer(c *cliconfig.PodmanCommand, runtime *libpod.Runtime) (*libpod.Container, *cc.CreateConfig, error) {
- var (
- hasHealthCheck bool
- healthCheck *manifest.Schema2HealthConfig
- )
- if c.Bool("trace") {
- span, _ := opentracing.StartSpanFromContext(Ctx, "createContainer")
- defer span.Finish()
- }
-
- rtc := runtime.GetConfig()
- ctx := getContext()
- rootfs := ""
- if c.Bool("rootfs") {
- rootfs = c.InputArgs[0]
- }
-
- var err error
- var cidFile *os.File
- if c.IsSet("cidfile") && os.Geteuid() == 0 {
- cidFile, err = libpod.OpenExclusiveFile(c.String("cidfile"))
- if err != nil && os.IsExist(err) {
- return nil, nil, errors.Errorf("container id file exists. Ensure another container is not using it or delete %s", c.String("cidfile"))
- }
- if err != nil {
- return nil, nil, errors.Errorf("error opening cidfile %s", c.String("cidfile"))
- }
- defer cidFile.Close()
- defer cidFile.Sync()
- }
-
- imageName := ""
- var data *inspect.ImageData = nil
-
- if rootfs == "" && !rootless.SkipStorageSetup() {
- var writer io.Writer
- if !c.Bool("quiet") {
- writer = os.Stderr
- }
-
- newImage, err := runtime.ImageRuntime().New(ctx, c.InputArgs[0], rtc.SignaturePolicyPath, "", writer, nil, image.SigningOptions{}, false, nil)
- if err != nil {
- return nil, nil, err
- }
- data, err = newImage.Inspect(ctx)
- names := newImage.Names()
- if len(names) > 0 {
- imageName = names[0]
- } else {
- imageName = newImage.ID()
- }
-
- // add healthcheck if it exists AND is correct mediatype
- _, mediaType, err := newImage.Manifest(ctx)
- if err != nil {
- return nil, nil, errors.Wrapf(err, "unable to determine mediatype of image %s", newImage.ID())
- }
- if mediaType == manifest.DockerV2Schema2MediaType {
- healthCheck, err = newImage.GetHealthCheck(ctx)
- if err != nil {
- return nil, nil, errors.Wrapf(err, "unable to get healthcheck for %s", c.InputArgs[0])
- }
- if healthCheck != nil {
- hasHealthCheck = true
- }
- }
- }
- createConfig, err := parseCreateOpts(ctx, c, runtime, imageName, data)
- if err != nil {
- return nil, nil, err
- }
-
- // Because parseCreateOpts does derive anything from the image, we add health check
- // at this point. The rest is done by WithOptions.
- createConfig.HasHealthCheck = hasHealthCheck
- createConfig.HealthCheck = healthCheck
-
- ctr, err := createContainerFromCreateConfig(runtime, createConfig, ctx, nil)
- if err != nil {
- return nil, nil, err
- }
- if cidFile != nil {
- _, err = cidFile.WriteString(ctr.ID())
- if err != nil {
- logrus.Error(err)
- }
-
- }
-
- logrus.Debugf("New container created %q", ctr.ID())
- return ctr, createConfig, nil
-}
-
-func parseSecurityOpt(config *cc.CreateConfig, securityOpts []string) error {
- var (
- labelOpts []string
- )
-
- if config.PidMode.IsHost() {
- labelOpts = append(labelOpts, label.DisableSecOpt()...)
- } else if config.PidMode.IsContainer() {
- ctr, err := config.Runtime.LookupContainer(config.PidMode.Container())
- if err != nil {
- return errors.Wrapf(err, "container %q not found", config.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 config.IpcMode.IsHost() {
- labelOpts = append(labelOpts, label.DisableSecOpt()...)
- } else if config.IpcMode.IsContainer() {
- ctr, err := config.Runtime.LookupContainer(config.IpcMode.Container())
- if err != nil {
- return errors.Wrapf(err, "container %q not found", config.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...)
- }
-
- for _, opt := range securityOpts {
- if opt == "no-new-privileges" {
- config.NoNewPrivs = true
- } else {
- con := strings.SplitN(opt, "=", 2)
- if len(con) != 2 {
- return fmt.Errorf("Invalid --security-opt 1: %q", opt)
- }
-
- switch con[0] {
- case "label":
- labelOpts = append(labelOpts, con[1])
- case "apparmor":
- config.ApparmorProfile = con[1]
- case "seccomp":
- config.SeccompProfilePath = con[1]
- default:
- return fmt.Errorf("Invalid --security-opt 2: %q", opt)
- }
- }
- }
-
- if config.SeccompProfilePath == "" {
- if _, err := os.Stat(libpod.SeccompOverridePath); err == nil {
- config.SeccompProfilePath = libpod.SeccompOverridePath
- } else {
- if !os.IsNotExist(err) {
- return errors.Wrapf(err, "can't check if %q exists", libpod.SeccompOverridePath)
- }
- if _, err := os.Stat(libpod.SeccompDefaultPath); err != nil {
- if !os.IsNotExist(err) {
- return errors.Wrapf(err, "can't check if %q exists", libpod.SeccompDefaultPath)
- }
- } else {
- config.SeccompProfilePath = libpod.SeccompDefaultPath
- }
- }
- }
- config.LabelOpts = labelOpts
- return nil
-}
-
-// isPortInPortBindings determines if an exposed host port is in user
-// provided ports
-func isPortInPortBindings(pb map[nat.Port][]nat.PortBinding, port nat.Port) bool {
- var hostPorts []string
- for _, i := range pb {
- hostPorts = append(hostPorts, i[0].HostPort)
- }
- return util.StringInSlice(port.Port(), hostPorts)
-}
-
-// isPortInImagePorts determines if an exposed host port was given to us by metadata
-// in the image itself
-func isPortInImagePorts(exposedPorts map[string]struct{}, port string) bool {
- for i := range exposedPorts {
- fields := strings.Split(i, "/")
- if port == fields[0] {
- return true
- }
- }
- return false
-}
-
-func configureEntrypoint(c *cliconfig.PodmanCommand, data *inspect.ImageData) []string {
- entrypoint := []string{}
- if c.IsSet("entrypoint") {
- // Force entrypoint to ""
- if c.String("entrypoint") == "" {
- return entrypoint
- }
- // Check if entrypoint specified is json
- if err := json.Unmarshal([]byte(c.String("entrypoint")), &entrypoint); err == nil {
- return entrypoint
- }
- // Return entrypoint as a single command
- return []string{c.String("entrypoint")}
- }
- if data != nil {
- return data.Config.Entrypoint
- }
- return entrypoint
-}
-
-func configurePod(c *cliconfig.PodmanCommand, runtime *libpod.Runtime, namespaces map[string]string, podName string) (map[string]string, error) {
- pod, err := runtime.LookupPod(podName)
- if err != nil {
- return namespaces, err
- }
- podInfraID, err := pod.InfraContainerID()
- if err != nil {
- return namespaces, err
- }
- if (namespaces["pid"] == cc.Pod) || (!c.IsSet("pid") && pod.SharesPID()) {
- namespaces["pid"] = fmt.Sprintf("container:%s", podInfraID)
- }
- if (namespaces["net"] == cc.Pod) || (!c.IsSet("net") && !c.IsSet("network") && pod.SharesNet()) {
- namespaces["net"] = fmt.Sprintf("container:%s", podInfraID)
- }
- if (namespaces["user"] == cc.Pod) || (!c.IsSet("user") && pod.SharesUser()) {
- namespaces["user"] = fmt.Sprintf("container:%s", podInfraID)
- }
- if (namespaces["ipc"] == cc.Pod) || (!c.IsSet("ipc") && pod.SharesIPC()) {
- namespaces["ipc"] = fmt.Sprintf("container:%s", podInfraID)
- }
- if (namespaces["uts"] == cc.Pod) || (!c.IsSet("uts") && pod.SharesUTS()) {
- namespaces["uts"] = fmt.Sprintf("container:%s", podInfraID)
- }
- return namespaces, nil
-}
-
-// Parses CLI options related to container creation into a config which can be
-// parsed into an OCI runtime spec
-func parseCreateOpts(ctx context.Context, c *cliconfig.PodmanCommand, runtime *libpod.Runtime, imageName string, data *inspect.ImageData) (*cc.CreateConfig, error) {
- var (
- inputCommand, command []string
- memoryLimit, memoryReservation, memorySwap, memoryKernel int64
- blkioWeight uint16
- namespaces map[string]string
- )
- if c.IsSet("restart") {
- return nil, errors.Errorf("--restart option is not supported.\nUse systemd unit files for restarting containers")
- }
-
- idmappings, err := util.ParseIDMapping(c.StringSlice("uidmap"), c.StringSlice("gidmap"), c.String("subuidname"), c.String("subgidname"))
- if err != nil {
- return nil, err
- }
-
- if c.String("mac-address") != "" {
- return nil, errors.Errorf("--mac-address option not currently supported")
- }
-
- imageID := ""
-
- inputCommand = c.InputArgs[1:]
- if data != nil {
- imageID = data.ID
- }
-
- rootfs := ""
- if c.Bool("rootfs") {
- rootfs = c.InputArgs[0]
- }
-
- sysctl, err := validateSysctl(c.StringSlice("sysctl"))
- if err != nil {
- return nil, errors.Wrapf(err, "invalid value for sysctl")
- }
-
- if c.String("memory") != "" {
- memoryLimit, err = units.RAMInBytes(c.String("memory"))
- if err != nil {
- return nil, errors.Wrapf(err, "invalid value for memory")
- }
- }
- if c.String("memory-reservation") != "" {
- memoryReservation, err = units.RAMInBytes(c.String("memory-reservation"))
- if err != nil {
- return nil, errors.Wrapf(err, "invalid value for memory-reservation")
- }
- }
- if c.String("memory-swap") != "" {
- memorySwap, err = units.RAMInBytes(c.String("memory-swap"))
- if err != nil {
- return nil, errors.Wrapf(err, "invalid value for memory-swap")
- }
- }
- if c.String("kernel-memory") != "" {
- memoryKernel, err = units.RAMInBytes(c.String("kernel-memory"))
- if err != nil {
- return nil, errors.Wrapf(err, "invalid value for kernel-memory")
- }
- }
- if c.String("blkio-weight") != "" {
- u, err := strconv.ParseUint(c.String("blkio-weight"), 10, 16)
- if err != nil {
- return nil, errors.Wrapf(err, "invalid value for blkio-weight")
- }
- 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")
-
- if c.Flag("cpu-period").Changed && c.Flag("cpus").Changed {
- return nil, errors.Errorf("--cpu-period and --cpus cannot be set together")
- }
- if c.Flag("cpu-quota").Changed && c.Flag("cpus").Changed {
- return nil, errors.Errorf("--cpu-quota and --cpus cannot be set together")
- }
-
- // EXPOSED PORTS
- var portBindings map[nat.Port][]nat.PortBinding
- if data != nil {
- portBindings, err = cc.ExposedPorts(c.StringSlice("expose"), c.StringSlice("publish"), c.Bool("publish-all"), data.Config.ExposedPorts)
- if err != nil {
- return nil, err
- }
- }
-
- // Kernel Namespaces
- // TODO Fix handling of namespace from pod
- // Instead of integrating here, should be done in libpod
- // However, that also involves setting up security opts
- // when the pod's namespace is integrated
- namespaceNet := c.String("network")
- if c.Flag("net").Changed {
- namespaceNet = c.String("net")
- }
- namespaces = map[string]string{
- "pid": c.String("pid"),
- "net": namespaceNet,
- "ipc": c.String("ipc"),
- "user": c.String("userns"),
- "uts": c.String("uts"),
- }
-
- originalPodName := c.String("pod")
- podName := strings.Replace(originalPodName, "new:", "", 1)
- // after we strip out :new, make sure there is something left for a pod name
- if len(podName) < 1 && c.IsSet("pod") {
- return nil, errors.Errorf("new pod name must be at least one character")
- }
- if c.IsSet("pod") {
- if strings.HasPrefix(originalPodName, "new:") {
- if rootless.IsRootless() {
- // To create a new pod, we must immediately create the userns.
- became, ret, err := rootless.BecomeRootInUserNS()
- if err != nil {
- return nil, err
- }
- if became {
- os.Exit(ret)
- }
- }
- // pod does not exist; lets make it
- var podOptions []libpod.PodCreateOption
- podOptions = append(podOptions, libpod.WithPodName(podName), libpod.WithInfraContainer(), libpod.WithPodCgroups())
- if len(portBindings) > 0 {
- ociPortBindings, err := cc.NatToOCIPortBindings(portBindings)
- if err != nil {
- return nil, err
- }
- podOptions = append(podOptions, libpod.WithInfraContainerPorts(ociPortBindings))
- }
-
- podNsOptions, err := shared.GetNamespaceOptions(strings.Split(DefaultKernelNamespaces, ","))
- if err != nil {
- return nil, err
- }
- podOptions = append(podOptions, podNsOptions...)
- // make pod
- pod, err := runtime.NewPod(ctx, podOptions...)
- if err != nil {
- return nil, err
- }
- logrus.Debugf("pod %s created by new container request", pod.ID())
-
- // The container now cannot have port bindings; so we reset the map
- portBindings = make(map[nat.Port][]nat.PortBinding)
- }
- namespaces, err = configurePod(c, runtime, namespaces, podName)
- if err != nil {
- return nil, err
- }
- }
-
- pidMode := ns.PidMode(namespaces["pid"])
- if !cc.Valid(string(pidMode), pidMode) {
- return nil, errors.Errorf("--pid %q is not valid", c.String("pid"))
- }
-
- usernsMode := ns.UsernsMode(namespaces["user"])
- if !cc.Valid(string(usernsMode), usernsMode) {
- return nil, errors.Errorf("--userns %q is not valid", namespaces["user"])
- }
-
- utsMode := ns.UTSMode(namespaces["uts"])
- if !cc.Valid(string(utsMode), utsMode) {
- return nil, errors.Errorf("--uts %q is not valid", namespaces["uts"])
- }
-
- ipcMode := ns.IpcMode(namespaces["ipc"])
- if !cc.Valid(string(ipcMode), ipcMode) {
- return nil, errors.Errorf("--ipc %q is not valid", ipcMode)
- }
-
- // Make sure if network is set to container namespace, port binding is not also being asked for
- netMode := ns.NetworkMode(namespaces["net"])
- if netMode.IsContainer() {
- if len(portBindings) > 0 {
- return nil, errors.Errorf("cannot set port bindings on an existing container network namespace")
- }
- }
-
- // USER
- user := c.String("user")
- if user == "" {
- if data == nil {
- user = "0"
- } else {
- user = data.Config.User
- }
- }
-
- // STOP SIGNAL
- stopSignal := syscall.SIGTERM
- signalString := ""
- if data != nil {
- signalString = data.Config.StopSignal
- }
- if c.IsSet("stop-signal") {
- signalString = c.String("stop-signal")
- }
- if signalString != "" {
- stopSignal, err = signal.ParseSignal(signalString)
- if err != nil {
- return nil, err
- }
- }
-
- // ENVIRONMENT VARIABLES
- env := defaultEnvVariables
- if data != nil {
- for _, e := range data.Config.Env {
- split := strings.SplitN(e, "=", 2)
- if len(split) > 1 {
- env[split[0]] = split[1]
- } else {
- env[split[0]] = ""
- }
- }
- }
- if err := readKVStrings(env, c.StringSlice("env-file"), c.StringSlice("env")); err != nil {
- return nil, errors.Wrapf(err, "unable to process environment variables")
- }
-
- // LABEL VARIABLES
- labels, err := getAllLabels(c.StringSlice("label-file"), c.StringArray("label"))
- if err != nil {
- return nil, errors.Wrapf(err, "unable to process labels")
- }
- if data != nil {
- for key, val := range data.Config.Labels {
- if _, ok := labels[key]; !ok {
- labels[key] = val
- }
- }
- }
-
- // ANNOTATIONS
- annotations := make(map[string]string)
- // First, add our default annotations
- annotations[ann.ContainerType] = "sandbox"
- annotations[ann.TTY] = "false"
- if tty {
- annotations[ann.TTY] = "true"
- }
- if data != nil {
- // Next, add annotations from the image
- for key, value := range data.Annotations {
- annotations[key] = value
- }
- }
- // Last, add user annotations
- for _, annotation := range c.StringSlice("annotation") {
- splitAnnotation := strings.SplitN(annotation, "=", 2)
- if len(splitAnnotation) < 2 {
- return nil, errors.Errorf("Annotations must be formatted KEY=VALUE")
- }
- annotations[splitAnnotation[0]] = splitAnnotation[1]
- }
-
- // WORKING DIRECTORY
- workDir := "/"
- if c.IsSet("workdir") || c.IsSet("w") {
- workDir = c.String("workdir")
- } else if data != nil && data.Config.WorkingDir != "" {
- workDir = data.Config.WorkingDir
- }
-
- entrypoint := configureEntrypoint(c, data)
- // Build the command
- // If we have an entry point, it goes first
- if len(entrypoint) > 0 {
- command = entrypoint
- }
- if len(inputCommand) > 0 {
- // User command overrides data CMD
- command = append(command, inputCommand...)
- } else if data != nil && len(data.Config.Cmd) > 0 && !c.IsSet("entrypoint") {
- // If not user command, add CMD
- command = append(command, data.Config.Cmd...)
- }
-
- if data != nil && len(command) == 0 {
- return nil, errors.Errorf("No command specified on command line or as CMD or ENTRYPOINT in this image")
- }
-
- // SHM Size
- shmSize, err := units.FromHumanSize(c.String("shm-size"))
- if err != nil {
- return nil, errors.Wrapf(err, "unable to translate --shm-size")
- }
-
- // Verify the additional hosts are in correct format
- for _, host := range c.StringSlice("add-host") {
- if _, err := validateExtraHost(host); err != nil {
- return nil, err
- }
- }
-
- // Check for . and dns-search domains
- if util.StringInSlice(".", c.StringSlice("dns-search")) && len(c.StringSlice("dns-search")) > 1 {
- return nil, errors.Errorf("cannot pass additional search domains when also specifying '.'")
- }
-
- // Validate domains are good
- for _, dom := range c.StringSlice("dns-search") {
- if _, err := validateDomain(dom); err != nil {
- return nil, err
- }
- }
-
- var ImageVolumes map[string]struct{}
- if data != nil && c.String("image-volume") != "ignore" {
- ImageVolumes = data.Config.Volumes
- }
-
- var imageVolType = map[string]string{
- "bind": "",
- "tmpfs": "",
- "ignore": "",
- }
- if _, ok := imageVolType[c.String("image-volume")]; !ok {
- return nil, errors.Errorf("invalid image-volume type %q. Pick one of bind, tmpfs, or ignore", c.String("image-volume"))
- }
-
- var systemd bool
- if command != nil && c.Bool("systemd") && ((filepath.Base(command[0]) == "init") || (filepath.Base(command[0]) == "systemd")) {
- systemd = true
- if signalString == "" {
- stopSignal, err = signal.ParseSignal("RTMIN+3")
- if err != nil {
- return nil, errors.Wrapf(err, "error parsing systemd signal")
- }
- }
- }
- // This is done because cobra cannot have two aliased flags. So we have to check
- // both
- network := c.String("network")
- if c.Flag("net").Changed {
- network = c.String("net")
- }
-
- var memorySwappiness int64
- if c.Flags().Lookup("memory-swappiness") != nil {
- memorySwappiness, _ = c.Flags().GetInt64("memory-swappiness")
- }
- config := &cc.CreateConfig{
- Runtime: runtime,
- Annotations: annotations,
- BuiltinImgVolumes: ImageVolumes,
- ConmonPidFile: c.String("conmon-pidfile"),
- ImageVolumeType: c.String("image-volume"),
- CapAdd: c.StringSlice("cap-add"),
- CapDrop: c.StringSlice("cap-drop"),
- CgroupParent: c.String("cgroup-parent"),
- Command: command,
- Detach: c.Bool("detach"),
- Devices: c.StringSlice("device"),
- DNSOpt: c.StringSlice("dns-opt"),
- DNSSearch: c.StringSlice("dns-search"),
- DNSServers: c.StringSlice("dns"),
- Entrypoint: entrypoint,
- Env: env,
- //ExposedPorts: ports,
- GroupAdd: c.StringSlice("group-add"),
- Hostname: c.String("hostname"),
- HostAdd: c.StringSlice("add-host"),
- IDMappings: idmappings,
- Image: imageName,
- ImageID: imageID,
- Interactive: c.Bool("interactive"),
- //IP6Address: c.String("ipv6"), // Not implemented yet - needs CNI support for static v6
- IPAddress: c.String("ip"),
- Labels: labels,
- //LinkLocalIP: c.StringSlice("link-local-ip"), // Not implemented yet
- LogDriver: c.String("log-driver"),
- LogDriverOpt: c.StringSlice("log-opt"),
- MacAddress: c.String("mac-address"),
- Name: c.String("name"),
- Network: network,
- //NetworkAlias: c.StringSlice("network-alias"), // Not implemented - does this make sense in Podman?
- IpcMode: ipcMode,
- NetMode: netMode,
- UtsMode: utsMode,
- PidMode: pidMode,
- Pod: podName,
- Privileged: c.Bool("privileged"),
- Publish: c.StringSlice("publish"),
- PublishAll: c.Bool("publish-all"),
- PortBindings: portBindings,
- Quiet: c.Bool("quiet"),
- ReadOnlyRootfs: c.Bool("read-only"),
- Resources: cc.CreateResourceConfig{
- BlkioWeight: blkioWeight,
- BlkioWeightDevice: c.StringSlice("blkio-weight-device"),
- CPUShares: c.Uint64("cpu-shares"),
- CPUPeriod: c.Uint64("cpu-period"),
- CPUsetCPUs: c.String("cpuset-cpus"),
- CPUsetMems: c.String("cpuset-mems"),
- CPUQuota: c.Int64("cpu-quota"),
- CPURtPeriod: c.Uint64("cpu-rt-period"),
- CPURtRuntime: c.Int64("cpu-rt-runtime"),
- CPUs: c.Float64("cpus"),
- DeviceReadBps: c.StringSlice("device-read-bps"),
- DeviceReadIOps: c.StringSlice("device-read-iops"),
- DeviceWriteBps: c.StringSlice("device-write-bps"),
- DeviceWriteIOps: c.StringSlice("device-write-iops"),
- DisableOomKiller: c.Bool("oom-kill-disable"),
- ShmSize: shmSize,
- Memory: memoryLimit,
- MemoryReservation: memoryReservation,
- MemorySwap: memorySwap,
- MemorySwappiness: int(memorySwappiness),
- KernelMemory: memoryKernel,
- OomScoreAdj: c.Int("oom-score-adj"),
- PidsLimit: c.Int64("pids-limit"),
- Ulimit: c.StringSlice("ulimit"),
- },
- Rm: c.Bool("rm"),
- StopSignal: stopSignal,
- StopTimeout: c.Uint("stop-timeout"),
- Sysctl: sysctl,
- Systemd: systemd,
- Tmpfs: c.StringSlice("tmpfs"),
- Tty: tty,
- User: user,
- UsernsMode: usernsMode,
- Mounts: mountList,
- Volumes: c.StringArray("volume"),
- WorkDir: workDir,
- Rootfs: rootfs,
- VolumesFrom: c.StringSlice("volumes-from"),
- Syslog: c.GlobalFlags.Syslog,
- }
- if c.Bool("init") {
- initPath := c.String("init-path")
- if initPath == "" {
- initPath = runtime.GetConfig().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 {
- return nil, err
- }
- }
- config.SecurityOpts = c.StringArray("security-opt")
- warnings, err := verifyContainerResources(config, false)
- if err != nil {
- return nil, err
- }
- for _, warning := range warnings {
- fmt.Fprintln(os.Stderr, warning)
- }
- return config, nil
-}
-
-type namespace interface {
- IsContainer() bool
- Container() string
-}
-
-func joinOrCreateRootlessUserNamespace(createConfig *cc.CreateConfig, runtime *libpod.Runtime) (bool, int, error) {
- if os.Geteuid() == 0 {
- return false, 0, nil
- }
-
- if createConfig.Pod != "" {
- pod, err := runtime.LookupPod(createConfig.Pod)
- if err != nil {
- return false, -1, err
- }
- inspect, err := pod.Inspect()
- for _, ctr := range inspect.Containers {
- prevCtr, err := runtime.LookupContainer(ctr.ID)
- if err != nil {
- return false, -1, err
- }
- s, err := prevCtr.State()
- if err != nil {
- return false, -1, err
- }
- if s != libpod.ContainerStateRunning && s != libpod.ContainerStatePaused {
- continue
- }
- data, err := ioutil.ReadFile(prevCtr.Config().ConmonPidFile)
- if err != nil {
- return false, -1, errors.Wrapf(err, "cannot read conmon PID file %q", prevCtr.Config().ConmonPidFile)
- }
- conmonPid, err := strconv.Atoi(string(data))
- if err != nil {
- return false, -1, errors.Wrapf(err, "cannot parse PID %q", data)
- }
- return rootless.JoinDirectUserAndMountNS(uint(conmonPid))
- }
- }
-
- namespacesStr := []string{string(createConfig.IpcMode), string(createConfig.NetMode), string(createConfig.UsernsMode), string(createConfig.PidMode), string(createConfig.UtsMode)}
- for _, i := range namespacesStr {
- if cc.IsNS(i) {
- return rootless.JoinNSPath(cc.NS(i))
- }
- }
-
- namespaces := []namespace{createConfig.IpcMode, createConfig.NetMode, createConfig.UsernsMode, createConfig.PidMode, createConfig.UtsMode}
- for _, i := range namespaces {
- if i.IsContainer() {
- ctr, err := runtime.LookupContainer(i.Container())
- if err != nil {
- return false, -1, err
- }
- pid, err := ctr.PID()
- if err != nil {
- return false, -1, err
- }
- if pid == 0 {
- if createConfig.Pod != "" {
- continue
- }
- return false, -1, errors.Errorf("dependency container %s is not running", ctr.ID())
- }
-
- data, err := ioutil.ReadFile(ctr.Config().ConmonPidFile)
- if err != nil {
- return false, -1, errors.Wrapf(err, "cannot read conmon PID file %q", ctr.Config().ConmonPidFile)
- }
- conmonPid, err := strconv.Atoi(string(data))
- if err != nil {
- return false, -1, errors.Wrapf(err, "cannot parse PID %q", data)
- }
- return rootless.JoinDirectUserAndMountNS(uint(conmonPid))
- }
- }
- return rootless.BecomeRootInUserNS()
-}
-
-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)
- if err != nil {
- return nil, err
- }
- became, ret, err := joinOrCreateRootlessUserNamespace(createConfig, r)
- if err != nil {
- return nil, err
- }
- if became {
- os.Exit(ret)
- }
-
- ctr, err := r.NewContainer(ctx, runtimeSpec, options...)
- if err != nil {
- return nil, err
- }
-
- createConfigJSON, err := json.Marshal(createConfig)
- if err != nil {
- return nil, err
- }
- if err := ctr.AddArtifact("create-config", createConfigJSON); err != nil {
- return nil, err
- }
- return ctr, nil
-}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-05 15:19:17 +0000