spiegel_podman/cmd/podman/containers/clone.go
Aditya R efe1176dd9
specgen,run: support running container from valid manifest list
Following PR adds support for running containers from a manifest list
present on localstorage. Before this PR podman only supports running
containers from valid images but not from manifest list.

So `podman run -it --platform <some> <manifest-list> command` should
become functional now and users should be able to resolve images on the
bases of provided `--platform` string.

Example
```
podman manifest create test
podman build --platform linux/amd64,linux/arm64 --manifest test .
podman run --rm --platform linux/arm64/v8 test uname -a
```

Closes: https://github.com/containers/podman/issues/14773

Signed-off-by: Aditya R <arajan@redhat.com>
2022-07-05 12:39:37 +05:30

86 lines
2.3 KiB
Go

package containers
import (
"fmt"
"github.com/containers/podman/v4/cmd/podman/common"
"github.com/containers/podman/v4/cmd/podman/registry"
"github.com/containers/podman/v4/libpod/define"
"github.com/containers/podman/v4/pkg/domain/entities"
"github.com/spf13/cobra"
)
var (
cloneDescription = `Creates a copy of an existing container.`
containerCloneCommand = &cobra.Command{
Use: "clone [options] CONTAINER NAME IMAGE",
Short: "Clone an existing container",
Long: cloneDescription,
RunE: clone,
Args: cobra.RangeArgs(1, 3),
ValidArgsFunction: common.AutocompleteClone,
Example: `podman container clone container_name new_name image_name`,
}
)
var (
ctrClone entities.ContainerCloneOptions
)
func cloneFlags(cmd *cobra.Command) {
flags := cmd.Flags()
destroyFlagName := "destroy"
flags.BoolVar(&ctrClone.Destroy, destroyFlagName, false, "destroy the original container")
runFlagName := "run"
flags.BoolVar(&ctrClone.Run, runFlagName, false, "run the new container")
forceFlagName := "force"
flags.BoolVarP(&ctrClone.Force, forceFlagName, "f", false, "force the existing container to be destroyed")
common.DefineCreateDefaults(&ctrClone.CreateOpts)
common.DefineCreateFlags(cmd, &ctrClone.CreateOpts, false, true)
}
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Command: containerCloneCommand,
Parent: containerCmd,
})
cloneFlags(containerCloneCommand)
}
func clone(cmd *cobra.Command, args []string) error {
switch len(args) {
case 0:
return fmt.Errorf("must specify at least 1 argument: %w", define.ErrInvalidArg)
case 2:
ctrClone.CreateOpts.Name = args[1]
case 3:
ctrClone.CreateOpts.Name = args[1]
ctrClone.Image = args[2]
if !cliVals.RootFS {
rawImageName := args[0]
name, err := PullImage(ctrClone.Image, &ctrClone.CreateOpts)
if err != nil {
return err
}
ctrClone.Image = name
ctrClone.RawImageName = rawImageName
}
}
if ctrClone.Force && !ctrClone.Destroy {
return fmt.Errorf("cannot set --force without --destroy: %w", define.ErrInvalidArg)
}
ctrClone.ID = args[0]
ctrClone.CreateOpts.IsClone = true
rep, err := registry.ContainerEngine().ContainerClone(registry.GetContext(), ctrClone)
if err != nil {
return err
}
fmt.Println(rep.Id)
return nil
}