containerd/cmd/ctr/start.go
Michael Crosby fa9e9bdf46 Fetch current container info before operations
This makes sure the client is always in sync with the server before
performing any type of operations on the container metadata.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2017-10-04 15:29:57 -04:00

89 lines
1.6 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 taskStartCommand = 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(ctx)
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, err := task.Wait(ctx)
if err != nil {
return err
}
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
code, _, err := status.Result()
if err != nil {
return err
}
if _, err := task.Delete(ctx); err != nil {
return err
}
if code != 0 {
return cli.NewExitError("", int(code))
}
return nil
},
}