mirror of
https://github.com/containers/podman.git
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050f3291b9
podman update allows users to change the cgroup configuration of an existing container using the already defined resource limits flags from podman create/run. The supported flags in crun are: this command is also now supported in the libpod api via the /libpod/containers/<CID>/update endpoint where the resource limits are passed inthe request body and follow the OCI resource spec format –memory –cpus –cpuset-cpus –cpuset-mems –memory-swap –memory-reservation –cpu-shares –cpu-quota –cpu-period –blkio-weight –cpu-rt-period –cpu-rt-runtime -device-read-bps -device-write-bps -device-read-iops -device-write-iops -memory-swappiness -blkio-weight-device resolves #15067 Signed-off-by: Charlie Doern <cdoern@redhat.com>
93 lines
2.6 KiB
Go
93 lines
2.6 KiB
Go
package pods
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import (
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"context"
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"fmt"
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"github.com/containers/common/pkg/completion"
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"github.com/containers/podman/v4/cmd/podman/common"
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"github.com/containers/podman/v4/cmd/podman/registry"
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"github.com/containers/podman/v4/libpod/define"
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"github.com/containers/podman/v4/pkg/domain/entities"
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"github.com/spf13/cobra"
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)
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var (
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podCloneDescription = `Create an exact copy of a pod and the containers within it`
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podCloneCommand = &cobra.Command{
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Use: "clone [options] POD NAME",
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Short: "Clone an existing pod",
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Long: podCloneDescription,
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RunE: clone,
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Args: cobra.RangeArgs(1, 2),
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ValidArgsFunction: common.AutocompleteClone,
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Example: `podman pod clone pod_name new_name`,
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}
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)
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var (
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podClone entities.PodCloneOptions
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)
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func cloneFlags(cmd *cobra.Command) {
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flags := cmd.Flags()
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destroyFlagName := "destroy"
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flags.BoolVar(&podClone.Destroy, destroyFlagName, false, "destroy the original pod")
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startFlagName := "start"
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flags.BoolVar(&podClone.Start, startFlagName, false, "start the new pod")
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nameFlagName := "name"
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flags.StringVarP(&podClone.CreateOpts.Name, nameFlagName, "n", "", "name the new pod")
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_ = podCloneCommand.RegisterFlagCompletionFunc(nameFlagName, completion.AutocompleteNone)
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common.DefineCreateDefaults(&podClone.InfraOptions)
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common.DefineCreateFlags(cmd, &podClone.InfraOptions, entities.InfraMode)
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podClone.InfraOptions.MemorySwappiness = -1 // this is not implemented for pods yet, need to set -1 default manually
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// need to fill an empty ctr create option for each container for sane defaults
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// for now, these cannot be used. The flag names conflict too much
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// this makes sense since this is a pod command not a container command
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// TODO: add support for container specific arguments/flags
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common.DefineCreateDefaults(&podClone.PerContainerOptions)
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}
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func init() {
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registry.Commands = append(registry.Commands, registry.CliCommand{
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Command: podCloneCommand,
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Parent: podCmd,
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})
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cloneFlags(podCloneCommand)
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}
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func clone(cmd *cobra.Command, args []string) error {
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switch len(args) {
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case 0:
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return fmt.Errorf("must specify at least 1 argument: %w", define.ErrInvalidArg)
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case 2:
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podClone.CreateOpts.Name = args[1]
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}
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podClone.ID = args[0]
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if cmd.Flag("shm-size").Changed {
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podClone.InfraOptions.ShmSize = cmd.Flag("shm-size").Value.String()
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}
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podClone.PerContainerOptions.IsClone = true
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rep, err := registry.ContainerEngine().PodClone(context.Background(), podClone)
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if err != nil {
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if rep != nil {
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fmt.Printf("pod %s created but error after creation\n", rep.Id)
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}
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return err
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}
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fmt.Println(rep.Id)
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return nil
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}
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