containerd/cmd/ctr/kill.go
Michael Crosby 00288bcb58 Update ctr containers and tasks command
This moves container and tasks commands under the containers and tasks
top level commands.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2017-08-07 14:45:21 -04:00

63 lines
1.2 KiB
Go

package main
import (
"github.com/pkg/errors"
"github.com/urfave/cli"
)
var taskKillCommand = cli.Command{
Name: "kill",
Usage: "signal a container (default: SIGTERM)",
ArgsUsage: "CONTAINER",
Flags: []cli.Flag{
cli.StringFlag{
Name: "signal, s",
Value: "SIGTERM",
Usage: "signal to send to the container",
},
cli.IntFlag{
Name: "pid",
Usage: "pid to kill",
Value: 0,
},
cli.BoolFlag{
Name: "all, a",
Usage: "send signal to all processes inside the container",
},
},
Action: func(context *cli.Context) error {
var (
id = context.Args().First()
ctx, cancel = appContext(context)
)
defer cancel()
if id == "" {
return errors.New("container id must be provided")
}
signal, err := parseSignal(context.String("signal"))
if err != nil {
return err
}
var (
pid = context.Int("pid")
all = context.Bool("all")
)
if pid > 0 && all {
return errors.New("enter a pid or all; not both")
}
client, err := newClient(context)
if err != nil {
return err
}
container, err := client.LoadContainer(ctx, id)
if err != nil {
return err
}
task, err := container.Task(ctx, nil)
if err != nil {
return err
}
return task.Kill(ctx, signal)
},
}