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add -detach flag for 'ctr t start'

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Signed-off-by: Lifubang <lifubang@aliyun.com>
This commit is contained in:
Lifubang 2018-08-27 18:43:56 +08:00
parent 830363acac
commit 66f6dd8b3b
1 changed files with 18 additions and 7 deletions
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19
cmd/ctr/commands/tasks/start.go
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@ -18,6 +18,7 @@ package tasks
import ( import (
"github.com/containerd/console" "github.com/containerd/console"
"github.com/containerd/containerd"
"github.com/containerd/containerd/cio" "github.com/containerd/containerd/cio"
"github.com/containerd/containerd/cmd/ctr/commands" "github.com/containerd/containerd/cmd/ctr/commands"
"github.com/pkg/errors" "github.com/pkg/errors"
@ -42,11 +43,16 @@ var startCommand = cli.Command{
Name: "pid-file", Name: "pid-file",
Usage: "file path to write the task's pid", Usage: "file path to write the task's pid",
}, },
cli.BoolFlag{
Name: "detach,d",
Usage: "detach from the task after it has started execution",
},
}, },
Action: func(context *cli.Context) error { Action: func(context *cli.Context) error {
var ( var (
err error err error
id = context.Args().Get(0) id = context.Args().Get(0)
detach = context.Bool("detach")
) )
if id == "" { if id == "" {
return errors.New("container id must be provided") return errors.New("container id must be provided")
@ -83,20 +89,25 @@ var startCommand = cli.Command{
if err != nil { if err != nil {
return err return err
} }
var statusC <-chan containerd.ExitStatus
if !detach {
defer task.Delete(ctx) defer task.Delete(ctx)
if statusC, err = task.Wait(ctx); err != nil {
return err
}
}
if context.IsSet("pid-file") { if context.IsSet("pid-file") {
if err := commands.WritePidFile(context.String("pid-file"), int(task.Pid())); err != nil { if err := commands.WritePidFile(context.String("pid-file"), int(task.Pid())); err != nil {
return err return err
} }
} }
statusC, err := task.Wait(ctx)
if err != nil {
return err
}
if err := task.Start(ctx); err != nil { if err := task.Start(ctx); err != nil {
return err return err
} }
if detach {
return nil
}
if tty { if tty {
if err := HandleConsoleResize(ctx, task, con); err != nil { if err := HandleConsoleResize(ctx, task, con); err != nil {
logrus.WithError(err).Error("console resize") logrus.WithError(err).Error("console resize")