Merge pull request #2319 from mheon/unconditional_cleanup

Fix manual detach from containers to not wait for exit

cmd/podman/attach.go

@@ -74,7 +74,7 @@ func attachCmd(c *cliconfig.AttachValues) error {
 		inputStream = nil
 	}
 
-	if err := startAttachCtr(ctr, os.Stdout, os.Stderr, inputStream, c.DetachKeys, c.SigProxy, false); err != nil {
+	if err := startAttachCtr(ctr, os.Stdout, os.Stderr, inputStream, c.DetachKeys, c.SigProxy, false); err != nil && errors.Cause(err) != libpod.ErrDetach {
 		return errors.Wrapf(err, "error attaching to container %s", ctr.ID())
 	}
 

cmd/podman/cleanup.go

@@ -37,6 +37,7 @@ func init() {
 
 	flags.BoolVarP(&cleanupCommand.All, "all", "a", false, "Cleans up all containers")
 	flags.BoolVarP(&cleanupCommand.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
+	flags.BoolVar(&cleanupCommand.Remove, "rm", false, "After cleanup, remove the container entirely")
 }
 
 func cleanupCmd(c *cliconfig.CleanupValues) error {
@@ -55,12 +56,25 @@ func cleanupCmd(c *cliconfig.CleanupValues) error {
 	ctx := getContext()
 
 	for _, ctr := range cleanupContainers {
-		if err = ctr.Cleanup(ctx); err != nil {
-			if lastError != nil {
-				fmt.Fprintln(os.Stderr, lastError)
+		hadError := false
+		if c.Remove {
+			if err := runtime.RemoveContainer(ctx, ctr, false); err != nil {
+				if lastError != nil {
+					fmt.Fprintln(os.Stderr, lastError)
+				}
+				lastError = errors.Wrapf(err, "failed to cleanup and remove container %v", ctr.ID())
+				hadError = true
 			}
-			lastError = errors.Wrapf(err, "failed to cleanup container %v", ctr.ID())
 		} else {
+			if err := ctr.Cleanup(ctx); err != nil {
+				if lastError != nil {
+					fmt.Fprintln(os.Stderr, lastError)
+				}
+				lastError = errors.Wrapf(err, "failed to cleanup container %v", ctr.ID())
+				hadError = true
+			}
+		}
+		if !hadError {
 			fmt.Println(ctr.ID())
 		}
 	}

cmd/podman/cliconfig/config.go

@@ -531,6 +531,7 @@ type CleanupValues struct {
 	PodmanCommand
 	All    bool
 	Latest bool
+	Remove bool
 }
 
 type SystemPruneValues struct {

cmd/podman/run.go

@@ -118,6 +118,14 @@ func runCmd(c *cliconfig.RunValues) error {
 		}
 	}
 	if err := startAttachCtr(ctr, outputStream, errorStream, inputStream, c.String("detach-keys"), c.Bool("sig-proxy"), true); err != nil {
+		// We've manually detached from the container
+		// Do not perform cleanup, or wait for container exit code
+		// Just exit immediately
+		if errors.Cause(err) == libpod.ErrDetach {
+			exitCode = 0
+			return nil
+		}
+
 		// This means the command did not exist
 		exitCode = 127
 		if strings.Index(err.Error(), "permission denied") > -1 {
@@ -147,28 +155,12 @@ func runCmd(c *cliconfig.RunValues) error {
 		exitCode = int(ecode)
 	}
 
-	if createConfig.Rm {
-		return runtime.RemoveContainer(ctx, ctr, true)
-	}
-
-	if err := ctr.Cleanup(ctx); err != nil {
-		// If the container has been removed already, no need to error on cleanup
-		// Also, if it was restarted, don't error either
-		if errors.Cause(err) == libpod.ErrNoSuchCtr ||
-			errors.Cause(err) == libpod.ErrCtrRemoved ||
-			errors.Cause(err) == libpod.ErrCtrStateInvalid {
-			return nil
-		}
-
-		return err
-	}
-
 	return nil
 }
 
 // Read a container's exit file
 func readExitFile(runtimeTmp, ctrID string) (int, error) {
-	exitFile := filepath.Join(runtimeTmp, "exits", ctrID)
+	exitFile := filepath.Join(runtimeTmp, "exits", fmt.Sprintf("%s-old", ctrID))
 
 	logrus.Debugf("Attempting to read container %s exit code from file %s", ctrID, exitFile)
 

cmd/podman/start.go

@@ -108,6 +108,13 @@ func startCmd(c *cliconfig.StartValues) error {
 
 			// attach to the container and also start it not already running
 			err = startAttachCtr(ctr, os.Stdout, os.Stderr, inputStream, c.DetachKeys, sigProxy, !ctrRunning)
+			if errors.Cause(err) == libpod.ErrDetach {
+				// User manually detached
+				// Exit cleanly immediately
+				exitCode = 0
+				return nil
+			}
+
 			if ctrRunning {
 				return err
 			}