traefik/vendor/github.com/opencontainers/runc/start.go
Emile Vauge aeb17182b4
Merge v1.2.1-master
Signed-off-by: Emile Vauge <emile@vauge.com>
2017-04-11 22:36:56 +02:00

43 lines
1.1 KiB
Go

package main
import (
"errors"
"fmt"
"github.com/opencontainers/runc/libcontainer"
"github.com/urfave/cli"
)
var startCommand = cli.Command{
Name: "start",
Usage: "executes the user defined process in a created container",
ArgsUsage: `<container-id>
Where "<container-id>" is your name for the instance of the container that you
are starting. The name you provide for the container instance must be unique on
your host.`,
Description: `The start command executes the user defined process in a created container.`,
Action: func(context *cli.Context) error {
if err := checkArgs(context, 1, exactArgs); err != nil {
return err
}
container, err := getContainer(context)
if err != nil {
return err
}
status, err := container.Status()
if err != nil {
return err
}
switch status {
case libcontainer.Created:
return container.Exec()
case libcontainer.Stopped:
return errors.New("cannot start a container that has stopped")
case libcontainer.Running:
return errors.New("cannot start an already running container")
default:
return fmt.Errorf("cannot start a container in the %s state\n", status)
}
},
}