mirror of
https://github.com/containers/podman.git
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4d895dcb54
add the ability to attach to a running container. the tunnel side of this is not enabled yet as we have work on the endpoints and plumbing to do yet. add the ability to exec a command in a running container. the tunnel side is also being deferred for same reason. Signed-off-by: Brent Baude <bbaude@redhat.com>
61 lines
2.1 KiB
Go
61 lines
2.1 KiB
Go
package containers
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import (
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"os"
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"github.com/containers/libpod/cmd/podmanV2/common"
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"github.com/containers/libpod/cmd/podmanV2/registry"
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"github.com/containers/libpod/pkg/domain/entities"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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)
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var (
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attachDescription = "The podman attach command allows you to attach to a running container using the container's ID or name, either to view its ongoing output or to control it interactively."
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attachCommand = &cobra.Command{
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Use: "attach [flags] CONTAINER",
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Short: "Attach to a running container",
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Long: attachDescription,
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RunE: attach,
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Args: func(cmd *cobra.Command, args []string) error {
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if len(args) > 1 || (len(args) == 0 && !cmd.Flag("latest").Changed) {
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return errors.Errorf("attach requires the name or id of one running container or the latest flag")
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}
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return nil
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},
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PreRunE: preRunE,
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Example: `podman attach ctrID
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podman attach 1234
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podman attach --no-stdin foobar`,
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}
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)
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var (
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attachOpts entities.AttachOptions
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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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Mode: []entities.EngineMode{entities.ABIMode},
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Command: attachCommand,
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})
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flags := attachCommand.Flags()
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flags.StringVar(&attachOpts.DetachKeys, "detach-keys", common.GetDefaultDetachKeys(), "Select the key sequence for detaching a container. Format is a single character `[a-Z]` or a comma separated sequence of `ctrl-<value>`, where `<value>` is one of: `a-z`, `@`, `^`, `[`, `\\`, `]`, `^` or `_`")
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flags.BoolVar(&attachOpts.NoStdin, "no-stdin", false, "Do not attach STDIN. The default is false")
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flags.BoolVar(&attachOpts.SigProxy, "sig-proxy", true, "Proxy received signals to the process")
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flags.BoolVarP(&attachOpts.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
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if registry.IsRemote() {
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_ = flags.MarkHidden("latest")
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}
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}
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func attach(cmd *cobra.Command, args []string) error {
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attachOpts.Stdin = os.Stdin
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if attachOpts.NoStdin {
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attachOpts.Stdin = nil
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}
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attachOpts.Stdout = os.Stdout
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attachOpts.Stderr = os.Stderr
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return registry.ContainerEngine().ContainerAttach(registry.GetContext(), args[0], attachOpts)
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}
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