Merge pull request #19416 from mlaventure/warn-on-rm-detach

Print an info message when detaching a container started with --rm

api/client/run.go

@@ -13,6 +13,7 @@ import (
 	"github.com/docker/docker/opts"
 	"github.com/docker/docker/pkg/promise"
 	"github.com/docker/docker/pkg/signal"
+	"github.com/docker/docker/pkg/stringid"
 	runconfigopts "github.com/docker/docker/runconfig/opts"
 	"github.com/docker/engine-api/types"
 	"github.com/docker/libnetwork/resolvconf/dns"
@@ -260,6 +261,16 @@ func (cli *DockerCli) CmdRun(args ...string) error {
 
 	// Attached mode
 	if *flAutoRemove {
+		// Warn user if they detached us
+		js, err := cli.client.ContainerInspect(createResponse.ID)
+		if err != nil {
+			return runStartContainerErr(err)
+		}
+		if js.State.Running == true || js.State.Paused == true {
+			fmt.Fprintf(cli.out, "Detached from %s, awaiting its termination in order to uphold \"--rm\".\n",
+				stringid.TruncateID(createResponse.ID))
+		}
+
 		// Autoremove: wait for the container to finish, retrieve
 		// the exit code and remove the container
 		if status, err = cli.client.ContainerWait(createResponse.ID); err != nil {