containerd/cmd/ctr/start.go
Yanqiang Miao ac72bbab26 Add start subcommand in ctr.
Signed-off-by: Yanqiang Miao <miao.yanqiang@zte.com.cn>
2017-08-05 09:39:11 +08:00

88 lines
1.7 KiB
Go

package main
import (
"github.com/containerd/console"
"github.com/opencontainers/go-digest"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/urfave/cli"
)
var startCommand = cli.Command{
Name: "start",
Usage: "start a container that have been created",
ArgsUsage: "CONTAINER",
Action: func(context *cli.Context) error {
var (
err error
ctx, cancel = appContext(context)
id = context.Args().Get(0)
)
defer cancel()
if id == "" {
return errors.New("container id must be provided")
}
client, err := newClient(context)
if err != nil {
return err
}
container, err := client.LoadContainer(ctx, id)
if err != nil {
return err
}
spec, err := container.Spec()
if err != nil {
return err
}
tty := spec.Process.Terminal
task, err := newTask(ctx, container, digest.Digest(""), tty)
if err != nil {
return err
}
defer task.Delete(ctx)
statusC := make(chan uint32, 1)
go func() {
status, err := task.Wait(ctx)
if err != nil {
logrus.WithError(err).Error("wait process")
}
statusC <- status
}()
var con console.Console
if tty {
con = console.Current()
defer con.Reset()
if err := con.SetRaw(); err != nil {
return err
}
}
if err := task.Start(ctx); err != nil {
return err
}
if tty {
if err := handleConsoleResize(ctx, task, con); err != nil {
logrus.WithError(err).Error("console resize")
}
} else {
sigc := forwardAllSignals(ctx, task)
defer stopCatch(sigc)
}
status := <-statusC
if _, err := task.Delete(ctx); err != nil {
return err
}
if status != 0 {
return cli.NewExitError("", int(status))
}
return nil
},
}