Backports for v2.1.1

RELEASE_NOTES.md

@@ -1,5 +1,25 @@
 # Release Notes
 
+## 2.1.1
+### Changes
+- The `podman info` command now includes the cgroup manager Podman is using.
+
+### Bugfixes
+- Fixed a bug where Podman would not build with the `varlink` build tag enabled.
+- Fixed a bug where the `podman save` command could, when asked to save multiple images, write its progress bar to the archive instead of the terminal, producing a corrupted archive.
+- Fixed a bug where the `json-file` log driver did not write logs.
+- Fixed a bug where `podman-remote start --attach` did not properly handle detaching using the detach keys.
+- Fixed a bug where `podman pod ps --filter label=...` did not work.
+- Fixed a bug where the `podman build` command did not respect the `--runtime` flag.
+
+### API
+- The REST API now includes a Server header in all responses.
+- Fixed a bug where the Libpod and Compat Attach endpoints could terminate early, before sending all output from the container.
+- Fixed a bug where the Compat Create endpoint for containers did not properly handle the Interactive parameter.
+- Fixed a bug where the Compat Kill endpoint for containers could continue to run after a fatal error.
+- Fixed a bug where the Limit parameter of the Compat List endpoint for Containers did not properly handle a limit of 0 (returning nothing, instead of all containers) ([#7722](https://github.com/containers/podman/issues/7722)).
+- The Libpod Stats endpoint for containers is being deprecated and will be replaced by a similar endpoint with additional features in a future release.
+
 ## 2.1.0
 ### Features
 - A new command, `podman image mount`, has been added. This allows for an image to be mounted, read-only, to inspect its contents without creating a container from it ([#1433](https://github.com/containers/podman/issues/1433)).

cmd/podman/images/build.go

@@ -436,6 +436,7 @@ func buildFlagsWrapperToOptions(c *cobra.Command, contextDir string, flags *buil
 		Quiet:                   flags.Quiet,
 		RemoveIntermediateCtrs:  flags.Rm,
 		ReportWriter:            reporter,
+		Runtime:                 containerConfig.RuntimePath,
 		RuntimeArgs:             runtimeFlags,
 		SignBy:                  flags.SignBy,
 		SignaturePolicyPath:     flags.SignaturePolicy,

cmd/podman/images/save.go

@@ -94,6 +94,7 @@ func save(cmd *cobra.Command, args []string) (finalErr error) {
 		return errors.Errorf("--compress can only be set when --format is either 'oci-dir' or 'docker-dir'")
 	}
 	if len(saveOpts.Output) == 0 {
+		saveOpts.Quiet = true
 		fi := os.Stdout
 		if terminal.IsTerminal(int(fi.Fd())) {
 			return errors.Errorf("refusing to save to terminal. Use -o flag or redirect")
@@ -122,12 +123,6 @@ func save(cmd *cobra.Command, args []string) (finalErr error) {
 		tags = args[1:]
 	}
 
-	// Decide whether c/image's progress bars should use stderr or stdout.
-	// If the output is set of stdout, any log message there would corrupt
-	// the tarfile.
-	if saveOpts.Output == os.Stdout.Name() {
-		saveOpts.Quiet = true
-	}
 	err := registry.ImageEngine().Save(context.Background(), args[0], tags, saveOpts)
 	if err == nil {
 		succeeded = true

cmd/podman/pods/ps.go

@@ -73,7 +73,7 @@ func pods(cmd *cobra.Command, _ []string) error {
 	if cmd.Flag("filter").Changed {
 		psInput.Filters = make(map[string][]string)
 		for _, f := range inputFilters {
-			split := strings.Split(f, "=")
+			split := strings.SplitN(f, "=", 2)
 			if len(split) < 2 {
 				return errors.Errorf("filter input must be in the form of filter=value: %s is invalid", f)
 			}

docs/source/markdown/podman-load.1.md

@@ -9,9 +9,11 @@ podman\-load - Load an image from a container image archive into container stora
 **podman image load** [*options*] [*name*[:*tag*]]
 
 ## DESCRIPTION
-**podman load** loads an image from either an **oci-archive** or **docker-archive** stored on the local machine into container storage. **podman load** reads from stdin by default or a file if the **input** option is set.
+**podman load** loads an image from either an **oci-archive** or a **docker-archive** stored on the local machine into container storage. **podman load** reads from stdin by default or a file if the **input** option is set.
 You can also specify a name for the image if the archive does not contain a named reference, of if you want an additional name for the local image.
 
+The local client further supports loading an **oci-dir** or a **docker-dir** as created with **podman save** (1).
+
 The **quiet** option suppresses the progress output when set.
 Note: `:` is a restricted character and cannot be part of the file name.
 

libpod/define/info.go

@@ -15,6 +15,7 @@ type Info struct {
 type HostInfo struct {
 	Arch           string                 `json:"arch"`
 	BuildahVersion string                 `json:"buildahVersion"`
+	CgroupManager  string                 `json:"cgroupManager"`
 	CGroupsVersion string                 `json:"cgroupVersion"`
 	Conmon         *ConmonInfo            `json:"conmon"`
 	CPUs           int                    `json:"cpus"`

libpod/info.go

@@ -87,6 +87,7 @@ func (r *Runtime) hostInfo() (*define.HostInfo, error) {
 	info := define.HostInfo{
 		Arch:           runtime.GOARCH,
 		BuildahVersion: buildah.Version,
+		CgroupManager:  r.config.Engine.CgroupManager,
 		Linkmode:       linkmode.Linkmode(),
 		CPUs:           runtime.NumCPU(),
 		Distribution:   hostDistributionInfo,

libpod/oci_conmon_exec_linux.go

@@ -537,9 +537,6 @@ func attachExecHTTP(c *Container, sessionID string, r *http.Request, w http.Resp
 		}
 	}()
 
-	// Make a channel to pass errors back
-	errChan := make(chan error)
-
 	attachStdout := true
 	attachStderr := true
 	attachStdin := true
@@ -580,13 +577,16 @@ func attachExecHTTP(c *Container, sessionID string, r *http.Request, w http.Resp
 		hijackWriteErrorAndClose(deferredErr, c.ID(), isTerminal, httpCon, httpBuf)
 	}()
 
+	stdoutChan := make(chan error)
+	stdinChan := make(chan error)
+
 	// Next, STDIN. Avoid entirely if attachStdin unset.
 	if attachStdin {
 		go func() {
 			logrus.Debugf("Beginning STDIN copy")
 			_, err := utils.CopyDetachable(conn, httpBuf, detachKeys)
 			logrus.Debugf("STDIN copy completed")
-			errChan <- err
+			stdinChan <- err
 		}()
 	}
 
@@ -613,19 +613,24 @@ func attachExecHTTP(c *Container, sessionID string, r *http.Request, w http.Resp
 			logrus.Debugf("Performing non-terminal HTTP attach for container %s", c.ID())
 			err = httpAttachNonTerminalCopy(conn, httpBuf, c.ID(), attachStdin, attachStdout, attachStderr)
 		}
-		errChan <- err
+		stdoutChan <- err
 		logrus.Debugf("STDOUT/ERR copy completed")
 	}()
 
-	if cancel != nil {
+	for {
 		select {
-		case err := <-errChan:
-			return err
+		case err := <-stdoutChan:
+			if err != nil {
+				return err
+			}
+
+			return nil
+		case err := <-stdinChan:
+			if err != nil {
+				return err
+			}
 		case <-cancel:
 			return nil
 		}
-	} else {
-		var connErr error = <-errChan
-		return connErr
 	}
 }

libpod/oci_conmon_linux.go

@@ -555,9 +555,6 @@ func (r *ConmonOCIRuntime) HTTPAttach(ctr *Container, req *http.Request, w http.
 		return err
 	}
 
-	// Make a channel to pass errors back
-	errChan := make(chan error)
-
 	attachStdout := true
 	attachStderr := true
 	attachStdin := true
@@ -672,6 +669,9 @@ func (r *ConmonOCIRuntime) HTTPAttach(ctr *Container, req *http.Request, w http.
 
 	logrus.Debugf("Forwarding attach output for container %s", ctr.ID())
 
+	stdoutChan := make(chan error)
+	stdinChan := make(chan error)
+
 	// Handle STDOUT/STDERR
 	go func() {
 		var err error
@@ -690,28 +690,33 @@ func (r *ConmonOCIRuntime) HTTPAttach(ctr *Container, req *http.Request, w http.
 			logrus.Debugf("Performing non-terminal HTTP attach for container %s", ctr.ID())
 			err = httpAttachNonTerminalCopy(conn, httpBuf, ctr.ID(), attachStdin, attachStdout, attachStderr)
 		}
-		errChan <- err
+		stdoutChan <- err
 		logrus.Debugf("STDOUT/ERR copy completed")
 	}()
 	// Next, STDIN. Avoid entirely if attachStdin unset.
 	if attachStdin {
 		go func() {
 			_, err := utils.CopyDetachable(conn, httpBuf, detach)
 			logrus.Debugf("STDIN copy completed")
-			errChan <- err
+			stdinChan <- err
 		}()
 	}
 
-	if cancel != nil {
+	for {
 		select {
-		case err := <-errChan:
-			return err
+		case err := <-stdoutChan:
+			if err != nil {
+				return err
+			}
+
+			return nil
+		case err := <-stdinChan:
+			if err != nil {
+				return err
+			}
 		case <-cancel:
 			return nil
 		}
-	} else {
-		var connErr error = <-errChan
-		return connErr
 	}
 }
 
@@ -1330,10 +1335,10 @@ func (r *ConmonOCIRuntime) sharedConmonArgs(ctr *Container, cuuid, bundlePath, p
 	switch logDriver {
 	case define.JournaldLogging:
 		logDriverArg = define.JournaldLogging
-	case define.JSONLogging:
-		fallthrough
 	case define.NoLogging:
 		logDriverArg = define.NoLogging
+	case define.JSONLogging:
+		fallthrough
 	default: //nolint-stylecheck
 		// No case here should happen except JSONLogging, but keep this here in case the options are extended
 		logrus.Errorf("%s logging specified but not supported. Choosing k8s-file logging instead", ctr.LogDriver())

pkg/api/handlers/compat/containers.go

@@ -17,6 +17,7 @@ import (
 	"github.com/docker/go-connections/nat"
 	"github.com/gorilla/schema"
 	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
 )
 
 func RemoveContainer(w http.ResponseWriter, r *http.Request) {
@@ -44,8 +45,25 @@ func RemoveContainer(w http.ResponseWriter, r *http.Request) {
 	runtime := r.Context().Value("runtime").(*libpod.Runtime)
 	name := utils.GetName(r)
 	con, err := runtime.LookupContainer(name)
-	if err != nil {
-		utils.ContainerNotFound(w, name, err)
+	if err != nil && errors.Cause(err) == define.ErrNoSuchCtr {
+		// Failed to get container. If force is specified, get the container's ID
+		// and evict it
+		if !query.Force {
+			utils.ContainerNotFound(w, name, err)
+			return
+		}
+
+		if _, err := runtime.EvictContainer(r.Context(), name, query.Vols); err != nil {
+			if errors.Cause(err) == define.ErrNoSuchCtr {
+				logrus.Debugf("Ignoring error (--allow-missing): %q", err)
+				w.WriteHeader(http.StatusNoContent)
+				return
+			}
+			logrus.Warn(errors.Wrapf(err, "Failed to evict container: %q", name))
+			utils.InternalServerError(w, err)
+			return
+		}
+		w.WriteHeader(http.StatusNoContent)
 		return
 	}
 
@@ -85,7 +103,7 @@ func ListContainers(w http.ResponseWriter, r *http.Request) {
 		utils.InternalServerError(w, err)
 		return
 	}
-	if _, found := r.URL.Query()["limit"]; found && query.Limit != -1 {
+	if _, found := r.URL.Query()["limit"]; found && query.Limit > 0 {
 		last := query.Limit
 		if len(containers) > last {
 			containers = containers[len(containers)-last:]
@@ -175,6 +193,7 @@ func KillContainer(w http.ResponseWriter, r *http.Request) {
 	err = con.Kill(signal)
 	if err != nil {
 		utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrapf(err, "unable to kill Container %s", name))
+		return
 	}
 
 	// Docker waits for the container to stop if the signal is 0 or

pkg/api/handlers/compat/containers_create.go

@@ -210,7 +210,7 @@ func makeCreateConfig(ctx context.Context, containerConfig *config.Config, input
 		ImageID:           newImage.ID(),
 		BuiltinImgVolumes: nil, // podman
 		ImageVolumeType:   "",  // podman
-		Interactive:       false,
+		Interactive:       input.OpenStdin,
 		// IpcMode:           input.HostConfig.IpcMode,
 		Labels:    input.Labels,
 		LogDriver: input.HostConfig.LogConfig.Type, // is this correct

pkg/api/server/handler_api.go

@@ -34,15 +34,18 @@ func (s *APIServer) APIHandler(h http.HandlerFunc) http.HandlerFunc {
 			}
 
 			// TODO: Use r.ConnContext when ported to go 1.13
-			c := context.WithValue(r.Context(), "decoder", s.Decoder) //nolint
-			c = context.WithValue(c, "runtime", s.Runtime)            //nolint
-			c = context.WithValue(c, "shutdownFunc", s.Shutdown)      //nolint
-			c = context.WithValue(c, "idletracker", s.idleTracker)    //nolint
+			c := context.WithValue(r.Context(), "decoder", s.Decoder) // nolint
+			c = context.WithValue(c, "runtime", s.Runtime)            // nolint
+			c = context.WithValue(c, "shutdownFunc", s.Shutdown)      // nolint
+			c = context.WithValue(c, "idletracker", s.idleTracker)    // nolint
 			r = r.WithContext(c)
 
-			v := utils.APIVersion[utils.CompatTree][utils.CurrentAPIVersion]
-			w.Header().Set("API-Version", fmt.Sprintf("%d.%d", v.Major, v.Minor))
-			w.Header().Set("Libpod-API-Version", utils.APIVersion[utils.LibpodTree][utils.CurrentAPIVersion].String())
+			cv := utils.APIVersion[utils.CompatTree][utils.CurrentAPIVersion]
+			w.Header().Set("API-Version", fmt.Sprintf("%d.%d", cv.Major, cv.Minor))
+
+			lv := utils.APIVersion[utils.LibpodTree][utils.CurrentAPIVersion].String()
+			w.Header().Set("Libpod-API-Version", lv)
+			w.Header().Set("Server", "Libpod/"+lv+" ("+runtime.GOOS+")")
 
 			h(w, r)
 		}

pkg/domain/infra/tunnel/containers.go

@@ -481,27 +481,67 @@ func startAndAttach(ic *ContainerEngine, name string, detachKeys *string, input,
 
 func (ic *ContainerEngine) ContainerStart(ctx context.Context, namesOrIds []string, options entities.ContainerStartOptions) ([]*entities.ContainerStartReport, error) {
 	reports := []*entities.ContainerStartReport{}
-	for _, name := range namesOrIds {
+	var exitCode = define.ExecErrorCodeGeneric
+	ctrs, err := getContainersByContext(ic.ClientCxt, false, false, namesOrIds)
+	if err != nil {
+		return nil, err
+	}
+	// There can only be one container if attach was used
+	for i, ctr := range ctrs {
+		name := ctr.ID
 		report := entities.ContainerStartReport{
 			Id:       name,
-			RawInput: name,
-			ExitCode: 125,
+			RawInput: namesOrIds[i],
+			ExitCode: exitCode,
 		}
+		ctrRunning := ctr.State == define.ContainerStateRunning.String()
 		if options.Attach {
-			report.Err = startAndAttach(ic, name, &options.DetachKeys, options.Stdin, options.Stdout, options.Stderr)
-			if report.Err == nil {
-				exitCode, err := containers.Wait(ic.ClientCxt, name, nil)
-				if err == nil {
-					report.ExitCode = int(exitCode)
+			err = startAndAttach(ic, name, &options.DetachKeys, options.Stdin, options.Stdout, options.Stderr)
+			if err == define.ErrDetach {
+				// User manually detached
+				// Exit cleanly immediately
+				report.Err = err
+				reports = append(reports, &report)
+				return reports, nil
+			}
+			if ctrRunning {
+				reports = append(reports, &report)
+				return reports, nil
+			}
+
+			if err != nil {
+				report.ExitCode = define.ExitCode(report.Err)
+				report.Err = err
+				reports = append(reports, &report)
+				return reports, errors.Wrapf(report.Err, "unable to start container %s", name)
+			}
+			exitCode, err := containers.Wait(ic.ClientCxt, name, nil)
+			if err == define.ErrNoSuchCtr {
+				// Check events
+				event, err := ic.GetLastContainerEvent(ctx, name, events.Exited)
+				if err != nil {
+					logrus.Errorf("Cannot get exit code: %v", err)
+					report.ExitCode = define.ExecErrorCodeNotFound
+				} else {
+					report.ExitCode = event.ContainerExitCode
 				}
 			} else {
-				report.ExitCode = define.ExitCode(report.Err)
+				report.ExitCode = int(exitCode)
 			}
 			reports = append(reports, &report)
 			return reports, nil
 		}
-		report.Err = containers.Start(ic.ClientCxt, name, &options.DetachKeys)
-		report.ExitCode = define.ExitCode(report.Err)
+		// Start the container if it's not running already.
+		if !ctrRunning {
+			err = containers.Start(ic.ClientCxt, name, &options.DetachKeys)
+			if err != nil {
+				report.Err = errors.Wrapf(err, "unable to start container %q", name)
+				report.ExitCode = define.ExitCode(err)
+				reports = append(reports, &report)
+				continue
+			}
+		}
+		report.ExitCode = 0
 		reports = append(reports, &report)
 	}
 	return reports, nil