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package containers
import (
"os"
"github.com/containers/libpod/cmd/podman/common"
"github.com/containers/libpod/cmd/podman/registry"
"github.com/containers/libpod/pkg/domain/entities"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
var (
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."
attachCommand = &cobra.Command{
Use: "attach [flags] CONTAINER",
Short: "Attach to a running container",
Long: attachDescription,
RunE: attach,
Args: func(cmd *cobra.Command, args []string) error {
if len(args) > 1 || (len(args) == 0 && !cmd.Flag("latest").Changed) {
return errors.Errorf("attach requires the name or id of one running container or the latest flag")
}
return nil
},
Example: `podman attach ctrID
podman attach 1234
podman attach --no-stdin foobar`,
}
)
var (
attachOpts entities.AttachOptions
)
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode},
Command: attachCommand,
})
flags := attachCommand.Flags()
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 `_`")
flags.BoolVar(&attachOpts.NoStdin, "no-stdin", false, "Do not attach STDIN. The default is false")
flags.BoolVar(&attachOpts.SigProxy, "sig-proxy", true, "Proxy received signals to the process")
flags.BoolVarP(&attachOpts.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
if registry.IsRemote() {
_ = flags.MarkHidden("latest")
}
}
func attach(cmd *cobra.Command, args []string) error {
attachOpts.Stdin = os.Stdin
if attachOpts.NoStdin {
attachOpts.Stdin = nil
}
attachOpts.Stdout = os.Stdout
attachOpts.Stderr = os.Stderr
return registry.ContainerEngine().ContainerAttach(registry.GetContext(), args[0], attachOpts)
}
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