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add flag -d for ctr t exec to run a service in container

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Signed-off-by: Lifubang <lifubang@acmcoder.com>
This commit is contained in:
Lifubang 2018-11-16 14:29:45 +08:00
parent a3c2f00c50
commit 01f5aa3878
1 changed files with 19 additions and 9 deletions
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10
cmd/ctr/commands/tasks/exec.go
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@ -40,6 +40,10 @@ var execCommand = cli.Command{
Name: "tty,t", Name: "tty,t",
Usage: "allocate a TTY for the container", Usage: "allocate a TTY for the container",
}, },
cli.BoolFlag{
Name: "detach,d",
Usage: "detach from the task after it has started execution",
},
cli.StringFlag{ cli.StringFlag{
Name: "exec-id", Name: "exec-id",
Usage: "exec specific id for the process", Usage: "exec specific id for the process",
@ -54,6 +58,7 @@ var execCommand = cli.Command{
id = context.Args().First() id = context.Args().First()
args = context.Args().Tail() args = context.Args().Tail()
tty = context.Bool("tty") tty = context.Bool("tty")
detach = context.Bool("detach")
) )
if id == "" { if id == "" {
return errors.New("container id must be provided") return errors.New("container id must be provided")
@ -104,6 +109,7 @@ var execCommand = cli.Command{
return err return err
} }
} }
if !detach {
if tty { if tty {
if err := HandleConsoleResize(ctx, process, con); err != nil { if err := HandleConsoleResize(ctx, process, con); err != nil {
logrus.WithError(err).Error("console resize") logrus.WithError(err).Error("console resize")
@ -112,10 +118,14 @@ var execCommand = cli.Command{
sigc := commands.ForwardAllSignals(ctx, process) sigc := commands.ForwardAllSignals(ctx, process)
defer commands.StopCatch(sigc) defer commands.StopCatch(sigc)
} }
}
if err := process.Start(ctx); err != nil { if err := process.Start(ctx); err != nil {
return err return err
} }
if detach {
return nil
}
status := <-statusC status := <-statusC
code, _, err := status.Result() code, _, err := status.Result()
if err != nil { if err != nil {