diff options
72 files changed, 3240 insertions, 512 deletions
@@ -152,6 +152,12 @@ libpodimage: ## Build the libpod image dbuild: libpodimage ${CONTAINER_RUNTIME} run --name=${LIBPOD_INSTANCE} --privileged -v ${PWD}:/go/src/${PROJECT} --rm ${LIBPOD_IMAGE} make all +dbuild-podman-remote: libpodimage + ${CONTAINER_RUNTIME} run --name=${LIBPOD_INSTANCE} --privileged -v ${PWD}:/go/src/${PROJECT} --rm ${LIBPOD_IMAGE} go build -ldflags '$(LDFLAGS_PODMAN)' -tags "$(BUILDTAGS) remoteclient" -o bin/podman-remote $(PROJECT)/cmd/podman + +dbuild-podman-remote-darwin: libpodimage + ${CONTAINER_RUNTIME} run --name=${LIBPOD_INSTANCE} --privileged -v ${PWD}:/go/src/${PROJECT} --rm ${LIBPOD_IMAGE} env GOOS=darwin go build -ldflags '$(LDFLAGS_PODMAN)' -tags "remoteclient containers_image_openpgp exclude_graphdriver_devicemapper" -o bin/podman-remote-darwin $(PROJECT)/cmd/podman + test: libpodimage ## Run tests on built image ${CONTAINER_RUNTIME} run -e STORAGE_OPTIONS="--storage-driver=vfs" -e TESTFLAGS -e OCI_RUNTIME -e CGROUP_MANAGER=cgroupfs -e TRAVIS -t --privileged --rm -v ${CURDIR}:/go/src/${PROJECT} ${LIBPOD_IMAGE} make clean all localunit install.catatonit localintegration @@ -45,7 +45,11 @@ This project tests all builds against each supported version of Fedora, the late Podman can also generate Kubernetes YAML based on a container or Pod (see [podman-generate-kube](https://github.com/containers/libpod/blob/master/docs/podman-generate-kube.1.md)), which allows for an easy transition from a local development environment - to a production Kubernetes cluster. + to a production Kubernetes cluster. If Kubernetes does not fit your requirements, + there are other third-party tools that support the docker-compose format such as + [kompose](https://github.com/kubernetes/kompose/) and + [podman-compose](https://github.com/muayyad-alsadi/podman-compose) + that might be appropriate for your environment. ## OCI Projects Plans diff --git a/cmd/podman/commands.go b/cmd/podman/commands.go index c36452cfe..c43ecec5c 100644 --- a/cmd/podman/commands.go +++ b/cmd/podman/commands.go @@ -19,10 +19,8 @@ func getMainCommands() []*cobra.Command { _mountCommand, _portCommand, _refreshCommand, - _restartCommand, _searchCommand, _statsCommand, - _topCommand, } if len(_varlinkCommand.Use) > 0 { @@ -50,12 +48,10 @@ func getContainerSubCommands() []*cobra.Command { _portCommand, _pruneContainersCommand, _refreshCommand, - _restartCommand, _restoreCommand, _runlabelCommand, _statsCommand, _stopCommand, - _topCommand, _umountCommand, } } diff --git a/cmd/podman/container.go b/cmd/podman/container.go index 7733c8eef..52152d50e 100644 --- a/cmd/podman/container.go +++ b/cmd/podman/container.go @@ -60,9 +60,11 @@ var ( _listSubCommand, _logsCommand, _pauseCommand, + _restartCommand, _runCommand, _rmCommand, _startCommand, + _topCommand, _unpauseCommand, _waitCommand, } diff --git a/cmd/podman/images.go b/cmd/podman/images.go index f584c1131..41aa213a8 100644 --- a/cmd/podman/images.go +++ b/cmd/podman/images.go @@ -243,7 +243,7 @@ func getImagesTemplateOutput(ctx context.Context, images []*adapter.ContainerIma // If all is false and the image doesn't have a name, check to see if the top layer of the image is a parent // to another image's top layer. If it is, then it is an intermediate image so don't print out if the --all flag // is not set. - isParent, err := img.IsParent() + isParent, err := img.IsParent(ctx) if err != nil { logrus.Errorf("error checking if image is a parent %q: %v", img.ID(), err) } diff --git a/cmd/podman/images_prune.go b/cmd/podman/images_prune.go index 84181d0a2..c522c8b15 100644 --- a/cmd/podman/images_prune.go +++ b/cmd/podman/images_prune.go @@ -45,7 +45,7 @@ func pruneImagesCmd(c *cliconfig.PruneImagesValues) error { // Call prune; if any cids are returned, print them and then // return err in case an error also came up - pruneCids, err := runtime.PruneImages(c.All) + pruneCids, err := runtime.PruneImages(getContext(), c.All) if len(pruneCids) > 0 { for _, cid := range pruneCids { fmt.Println(cid) diff --git a/cmd/podman/main.go b/cmd/podman/main.go index 15f4a5d71..a0f1cf401 100644 --- a/cmd/podman/main.go +++ b/cmd/podman/main.go @@ -50,12 +50,14 @@ var mainCommands = []*cobra.Command{ &_psCommand, _pullCommand, _pushCommand, + _restartCommand, _rmCommand, &_rmiCommand, _runCommand, _saveCommand, _stopCommand, _tagCommand, + _topCommand, _umountCommand, _unpauseCommand, _versionCommand, diff --git a/cmd/podman/pull.go b/cmd/podman/pull.go index 04eb5bd46..521419e7a 100644 --- a/cmd/podman/pull.go +++ b/cmd/podman/pull.go @@ -46,7 +46,7 @@ func init() { pullCommand.SetHelpTemplate(HelpTemplate()) pullCommand.SetUsageTemplate(UsageTemplate()) flags := pullCommand.Flags() - flags.BoolVar(&pullCommand.AllTags, "all-tags", false, "All tagged images inthe repository will be pulled") + flags.BoolVar(&pullCommand.AllTags, "all-tags", false, "All tagged images in the repository will be pulled") flags.StringVar(&pullCommand.CertDir, "cert-dir", "", "`Pathname` of a directory containing TLS certificates and keys") flags.StringVar(&pullCommand.Creds, "creds", "", "`Credentials` (USERNAME:PASSWORD) to use for authenticating to a registry") flags.BoolVarP(&pullCommand.Quiet, "quiet", "q", false, "Suppress output information when pulling images") @@ -94,8 +94,9 @@ func pullCmd(c *cliconfig.PullValues) (retError error) { return errors.Errorf("tag can't be used with --all-tags") } } + ctx := getContext() - img := args[0] + imgArg := args[0] var registryCreds *types.DockerAuthConfig @@ -122,68 +123,86 @@ func pullCmd(c *cliconfig.PullValues) (retError error) { dockerRegistryOptions.DockerInsecureSkipTLSVerify = types.NewOptionalBool(!c.TlsVerify) } - // Possible for docker-archive to have multiple tags, so use LoadFromArchiveReference instead - if strings.HasPrefix(img, dockerarchive.Transport.Name()+":") { - srcRef, err := alltransports.ParseImageName(img) + // Special-case for docker-archive which allows multiple tags. + if strings.HasPrefix(imgArg, dockerarchive.Transport.Name()+":") { + srcRef, err := alltransports.ParseImageName(imgArg) if err != nil { - return errors.Wrapf(err, "error parsing %q", img) + return errors.Wrapf(err, "error parsing %q", imgArg) } newImage, err := runtime.LoadFromArchiveReference(getContext(), srcRef, c.SignaturePolicy, writer) if err != nil { - return errors.Wrapf(err, "error pulling image from %q", img) + return errors.Wrapf(err, "error pulling image from %q", imgArg) } fmt.Println(newImage[0].ID()) - } else { - authfile := getAuthFile(c.String("authfile")) - spec := img - systemContext := image.GetSystemContext("", authfile, false) - srcRef, err := alltransports.ParseImageName(spec) + + return nil + } + + authfile := getAuthFile(c.String("authfile")) + + // FIXME: the default pull consults the registries.conf's search registries + // while the all-tags pull does not. This behavior must be fixed in the + // future and span across c/buildah, c/image and c/libpod to avoid redundant + // and error prone code. + // + // See https://bugzilla.redhat.com/show_bug.cgi?id=1701922 for background + // information. + if !c.Bool("all-tags") { + newImage, err := runtime.New(getContext(), imgArg, c.SignaturePolicy, authfile, writer, &dockerRegistryOptions, image.SigningOptions{}, true, nil) if err != nil { - dockerTransport := "docker://" - logrus.Debugf("error parsing image name %q, trying with transport %q: %v", spec, dockerTransport, err) - spec = dockerTransport + spec - srcRef2, err2 := alltransports.ParseImageName(spec) - if err2 != nil { - return errors.Wrapf(err2, "error parsing image name %q", img) - } - srcRef = srcRef2 - } - var names []string - if c.Bool("all-tags") { - if srcRef.DockerReference() == nil { - return errors.New("Non-docker transport is currently not supported") - } - tags, err := docker.GetRepositoryTags(ctx, systemContext, srcRef) - if err != nil { - return errors.Wrapf(err, "error getting repository tags") - } - for _, tag := range tags { - name := spec + ":" + tag - names = append(names, name) - } - } else { - names = append(names, spec) + return errors.Wrapf(err, "error pulling image %q", imgArg) } - var foundIDs []string - foundImage := true - for _, name := range names { - newImage, err := runtime.New(getContext(), name, c.String("signature-policy"), authfile, writer, &dockerRegistryOptions, image.SigningOptions{}, true, nil) - if err != nil { - logrus.Errorf("error pulling image %q", name) - foundImage = false - continue - } - foundIDs = append(foundIDs, newImage.ID()) - } - if len(names) == 1 && !foundImage { - return errors.Wrapf(err, "error pulling image %q", img) - } - if len(names) > 1 { - fmt.Println("Pulled Images:") + fmt.Println(newImage.ID()) + return nil + } + + // FIXME: all-tags should use the libpod backend instead of baking its own bread. + spec := imgArg + systemContext := image.GetSystemContext("", authfile, false) + srcRef, err := alltransports.ParseImageName(spec) + if err != nil { + dockerTransport := "docker://" + logrus.Debugf("error parsing image name %q, trying with transport %q: %v", spec, dockerTransport, err) + spec = dockerTransport + spec + srcRef2, err2 := alltransports.ParseImageName(spec) + if err2 != nil { + return errors.Wrapf(err2, "error parsing image name %q", imgArg) } - for _, id := range foundIDs { - fmt.Println(id) + srcRef = srcRef2 + } + var names []string + if srcRef.DockerReference() == nil { + return errors.New("Non-docker transport is currently not supported") + } + tags, err := docker.GetRepositoryTags(ctx, systemContext, srcRef) + if err != nil { + return errors.Wrapf(err, "error getting repository tags") + } + for _, tag := range tags { + name := spec + ":" + tag + names = append(names, name) + } + + var foundIDs []string + foundImage := true + for _, name := range names { + newImage, err := runtime.New(getContext(), name, c.String("signature-policy"), authfile, writer, &dockerRegistryOptions, image.SigningOptions{}, true, nil) + if err != nil { + logrus.Errorf("error pulling image %q", name) + foundImage = false + continue } - } // end else if strings.HasPrefix(img, dockerarchive.Transport.Name()+":") + foundIDs = append(foundIDs, newImage.ID()) + } + if len(names) == 1 && !foundImage { + return errors.Wrapf(err, "error pulling image %q", imgArg) + } + if len(names) > 1 { + fmt.Println("Pulled Images:") + } + for _, id := range foundIDs { + fmt.Println(id) + } + return nil } diff --git a/cmd/podman/restart.go b/cmd/podman/restart.go index 5a9f3043a..9ab2dd528 100644 --- a/cmd/podman/restart.go +++ b/cmd/podman/restart.go @@ -2,11 +2,9 @@ package main import ( "github.com/containers/libpod/cmd/podman/cliconfig" - "github.com/containers/libpod/cmd/podman/libpodruntime" - "github.com/containers/libpod/cmd/podman/shared" "github.com/containers/libpod/libpod" + "github.com/containers/libpod/pkg/adapter" "github.com/pkg/errors" - "github.com/sirupsen/logrus" "github.com/spf13/cobra" ) @@ -22,7 +20,6 @@ var ( RunE: func(cmd *cobra.Command, args []string) error { restartCommand.InputArgs = args restartCommand.GlobalFlags = MainGlobalOpts - restartCommand.Remote = remoteclient return restartCmd(&restartCommand) }, Args: func(cmd *cobra.Command, args []string) error { @@ -49,83 +46,30 @@ func init() { } func restartCmd(c *cliconfig.RestartValues) error { - var ( - restartFuncs []shared.ParallelWorkerInput - containers []*libpod.Container - restartContainers []*libpod.Container - ) - - args := c.InputArgs - runOnly := c.Running all := c.All - if len(args) < 1 && !c.Latest && !all { + if len(c.InputArgs) < 1 && !c.Latest && !all { return errors.Wrapf(libpod.ErrInvalidArg, "you must provide at least one container name or ID") } - runtime, err := libpodruntime.GetRuntime(&c.PodmanCommand) + runtime, err := adapter.GetRuntime(&c.PodmanCommand) if err != nil { return errors.Wrapf(err, "error creating libpod runtime") } defer runtime.Shutdown(false) - timeout := c.Timeout - useTimeout := c.Flag("timeout").Changed || c.Flag("time").Changed - - // Handle --latest - if c.Latest { - lastCtr, err := runtime.GetLatestContainer() - if err != nil { - return errors.Wrapf(err, "unable to get latest container") - } - restartContainers = append(restartContainers, lastCtr) - } else if runOnly { - containers, err = getAllOrLatestContainers(&c.PodmanCommand, runtime, libpod.ContainerStateRunning, "running") - if err != nil { - return err - } - restartContainers = append(restartContainers, containers...) - } else if all { - containers, err = runtime.GetAllContainers() - if err != nil { - return err - } - restartContainers = append(restartContainers, containers...) - } else { - for _, id := range args { - ctr, err := runtime.LookupContainer(id) - if err != nil { - return err + ok, failures, err := runtime.Restart(getContext(), c) + if err != nil { + if errors.Cause(err) == libpod.ErrNoSuchCtr { + if len(c.InputArgs) > 1 { + exitCode = 125 + } else { + exitCode = 1 } - restartContainers = append(restartContainers, ctr) } + return err } - - maxWorkers := shared.Parallelize("restart") - if c.GlobalIsSet("max-workers") { - maxWorkers = c.GlobalFlags.MaxWorks + if len(failures) > 0 { + exitCode = 125 } - - logrus.Debugf("Setting maximum workers to %d", maxWorkers) - - // We now have a slice of all the containers to be restarted. Iterate them to - // create restart Funcs with a timeout as needed - for _, ctr := range restartContainers { - con := ctr - ctrTimeout := ctr.StopTimeout() - if useTimeout { - ctrTimeout = timeout - } - - f := func() error { - return con.RestartWithTimeout(getContext(), ctrTimeout) - } - - restartFuncs = append(restartFuncs, shared.ParallelWorkerInput{ - ContainerID: con.ID(), - ParallelFunc: f, - }) - } - - restartErrors, errCount := shared.ParallelExecuteWorkerPool(maxWorkers, restartFuncs) - return printParallelOutput(restartErrors, errCount) + return printCmdResults(ok, failures) } diff --git a/cmd/podman/rmi.go b/cmd/podman/rmi.go index 7ec875d5b..be7c81dab 100644 --- a/cmd/podman/rmi.go +++ b/cmd/podman/rmi.go @@ -97,7 +97,7 @@ func rmiCmd(c *cliconfig.RmiValues) error { return errors.New("unable to delete all images; re-run the rmi command again.") } for _, i := range imagesToDelete { - isParent, err := i.IsParent() + isParent, err := i.IsParent(ctx) if err != nil { return err } diff --git a/cmd/podman/system_df.go b/cmd/podman/system_df.go index 16a8ad120..aa0ead022 100644 --- a/cmd/podman/system_df.go +++ b/cmd/podman/system_df.go @@ -201,7 +201,7 @@ func imageUniqueSize(ctx context.Context, images []*image.Image) (map[string]uin for _, img := range images { parentImg := img for { - next, err := parentImg.GetParent() + next, err := parentImg.GetParent(ctx) if err != nil { return nil, errors.Wrapf(err, "error getting parent of image %s", parentImg.ID()) } @@ -246,11 +246,11 @@ func getImageDiskUsage(ctx context.Context, images []*image.Image, imageUsedbyCi unreclaimableSize += imageUsedSize(img, imgUniqueSizeMap, imageUsedbyCintainerMap, imageUsedbyActiveContainerMap) - isParent, err := img.IsParent() + isParent, err := img.IsParent(ctx) if err != nil { return imageDiskUsage, err } - parent, err := img.GetParent() + parent, err := img.GetParent(ctx) if err != nil { return imageDiskUsage, errors.Wrapf(err, "error getting parent of image %s", img.ID()) } @@ -437,11 +437,11 @@ func getImageVerboseDiskUsage(ctx context.Context, images []*image.Image, images return imagesVerboseDiskUsage, errors.Wrapf(err, "error getting unique size of images") } for _, img := range images { - isParent, err := img.IsParent() + isParent, err := img.IsParent(ctx) if err != nil { return imagesVerboseDiskUsage, errors.Wrapf(err, "error checking if %s is a parent images", img.ID()) } - parent, err := img.GetParent() + parent, err := img.GetParent(ctx) if err != nil { return imagesVerboseDiskUsage, errors.Wrapf(err, "error getting parent of image %s", img.ID()) } diff --git a/cmd/podman/system_prune.go b/cmd/podman/system_prune.go index 8900e2644..2c1c5607a 100644 --- a/cmd/podman/system_prune.go +++ b/cmd/podman/system_prune.go @@ -110,7 +110,7 @@ Are you sure you want to continue? [y/N] `, volumeString) // Call prune; if any cids are returned, print them and then // return err in case an error also came up - pruneCids, err := runtime.PruneImages(c.All) + pruneCids, err := runtime.PruneImages(ctx, c.All) if len(pruneCids) > 0 { fmt.Println("Deleted Images") for _, cid := range pruneCids { diff --git a/cmd/podman/top.go b/cmd/podman/top.go index 0b7da64a8..f1f594ebf 100644 --- a/cmd/podman/top.go +++ b/cmd/podman/top.go @@ -7,8 +7,8 @@ import ( "text/tabwriter" "github.com/containers/libpod/cmd/podman/cliconfig" - "github.com/containers/libpod/cmd/podman/libpodruntime" "github.com/containers/libpod/libpod" + "github.com/containers/libpod/pkg/adapter" "github.com/pkg/errors" "github.com/spf13/cobra" ) @@ -60,7 +60,6 @@ func init() { } func topCmd(c *cliconfig.TopValues) error { - var container *libpod.Container var err error args := c.InputArgs @@ -77,37 +76,16 @@ func topCmd(c *cliconfig.TopValues) error { return errors.Errorf("you must provide the name or id of a running container") } - runtime, err := libpodruntime.GetRuntime(&c.PodmanCommand) + runtime, err := adapter.GetRuntime(&c.PodmanCommand) if err != nil { return errors.Wrapf(err, "error creating libpod runtime") } defer runtime.Shutdown(false) - var descriptors []string - if c.Latest { - descriptors = args - container, err = runtime.GetLatestContainer() - } else { - descriptors = args[1:] - container, err = runtime.LookupContainer(args[0]) - } - - if err != nil { - return errors.Wrapf(err, "unable to lookup requested container") - } - - conStat, err := container.State() - if err != nil { - return errors.Wrapf(err, "unable to look up state for %s", args[0]) - } - if conStat != libpod.ContainerStateRunning { - return errors.Errorf("top can only be used on running containers") - } - psOutput, err := container.GetContainerPidInformation(descriptors) + psOutput, err := runtime.Top(c) if err != nil { return err } - w := tabwriter.NewWriter(os.Stdout, 5, 1, 3, ' ', 0) for _, proc := range psOutput { fmt.Fprintln(w, proc) diff --git a/cmd/podman/varlink/io.podman.varlink b/cmd/podman/varlink/io.podman.varlink index 1fde72164..17179d665 100644 --- a/cmd/podman/varlink/io.podman.varlink +++ b/cmd/podman/varlink/io.podman.varlink @@ -524,6 +524,8 @@ method Ps(opts: PsOpts) -> (containers: []PsContainer) method GetContainersByStatus(status: []string) -> (containerS: []Container) +method Top (nameOrID: string, descriptors: []string) -> (top: []string) + # GetContainer returns information about a single container. If a container # with the given id doesn't exist, a [ContainerNotFound](#ContainerNotFound) # error will be returned. See also [ListContainers](ListContainers) and diff --git a/contrib/cirrus/setup_environment.sh b/contrib/cirrus/setup_environment.sh index 3818abbc7..0d26f6c9a 100755 --- a/contrib/cirrus/setup_environment.sh +++ b/contrib/cirrus/setup_environment.sh @@ -55,6 +55,7 @@ then # Some setup needs to vary between distros case "${OS_RELEASE_ID}-${OS_RELEASE_VER}" in ubuntu-18) + sudo apt-get -qq -y install libsystemd-dev # Always install runc on Ubuntu install_runc_from_git ;; diff --git a/docs/podman-events.1.md b/docs/podman-events.1.md index 40f7e8457..da142c0fb 100644 --- a/docs/podman-events.1.md +++ b/docs/podman-events.1.md @@ -9,7 +9,9 @@ podman\-events - Monitor Podman events ## DESCRIPTION Monitor and print events that occur in Podman. Each event will include a timestamp, -a type, a status, name (if applicable), and image (if applicable). +a type, a status, name (if applicable), and image (if applicable). The default logging +mechanism is *journald*. This can be changed in libpod.conf by changing the `events_logger` +value to `file`. Only `file` and `journald` are the accepted. The *container* event type will report the follow statuses: * attach diff --git a/docs/podman-pull.1.md b/docs/podman-pull.1.md index 92740c3af..ab01bb40d 100644 --- a/docs/podman-pull.1.md +++ b/docs/podman-pull.1.md @@ -49,6 +49,8 @@ Image stored in local container/storage All tagged images in the repository will be pulled. +Note: When using the all-tags flag, Podman will not iterate over the search registries in the containers-registries.conf(5) but will always use docker.io for unqualified image names. + **--authfile** Path of the authentication file. Default is ${XDG_RUNTIME\_DIR}/containers/auth.json, which is set using `podman login`. diff --git a/libpod.conf b/libpod.conf index 80422e3dd..ca8d0fb36 100644 --- a/libpod.conf +++ b/libpod.conf @@ -113,3 +113,7 @@ runc = [ "/bin/runc", "/usr/lib/cri-o-runc/sbin/runc" ] + +# Selects which logging mechanism to use for Podman events. Valid values +# are `journald` or `file`. +events_logger = "journald" diff --git a/libpod/container_top_linux.go b/libpod/container_top_linux.go index 9b0f156b5..b370495fe 100644 --- a/libpod/container_top_linux.go +++ b/libpod/container_top_linux.go @@ -7,8 +7,22 @@ import ( "strings" "github.com/containers/psgo" + "github.com/pkg/errors" ) +// Top gathers statistics about the running processes in a container. It returns a +// []string for output +func (c *Container) Top(descriptors []string) ([]string, error) { + conStat, err := c.State() + if err != nil { + return nil, errors.Wrapf(err, "unable to look up state for %s", c.ID()) + } + if conStat != ContainerStateRunning { + return nil, errors.Errorf("top can only be used on running containers") + } + return c.GetContainerPidInformation(descriptors) +} + // GetContainerPidInformation returns process-related data of all processes in // the container. The output data can be controlled via the `descriptors` // argument which expects format descriptors and supports all AIXformat diff --git a/libpod/events.go b/libpod/events.go index b6a277789..1b5c3bd99 100644 --- a/libpod/events.go +++ b/libpod/events.go @@ -1,14 +1,19 @@ package libpod import ( - "os" - "github.com/containers/libpod/libpod/events" - "github.com/hpcloud/tail" - "github.com/pkg/errors" "github.com/sirupsen/logrus" ) +// newEventer returns an eventer that can be used to read/write events +func (r *Runtime) newEventer() (events.Eventer, error) { + options := events.EventerOptions{ + EventerType: r.config.EventsLogger, + LogFilePath: r.config.EventsLogFilePath, + } + return events.NewEventer(options) +} + // newContainerEvent creates a new event based on a container func (c *Container) newContainerEvent(status events.Status) { e := events.NewEvent(status) @@ -16,8 +21,8 @@ func (c *Container) newContainerEvent(status events.Status) { e.Name = c.Name() e.Image = c.config.RootfsImageName e.Type = events.Container - if err := e.Write(c.runtime.config.EventsLogFilePath); err != nil { - logrus.Errorf("unable to write event to %s", c.runtime.config.EventsLogFilePath) + if err := c.runtime.eventer.Write(e); err != nil { + logrus.Errorf("unable to write pod event: %q", err) } } @@ -29,8 +34,8 @@ func (c *Container) newContainerExitedEvent(exitCode int32) { e.Image = c.config.RootfsImageName e.Type = events.Container e.ContainerExitCode = int(exitCode) - if err := e.Write(c.runtime.config.EventsLogFilePath); err != nil { - logrus.Errorf("unable to write event to %s", c.runtime.config.EventsLogFilePath) + if err := c.runtime.eventer.Write(e); err != nil { + logrus.Errorf("unable to write pod event: %q", err) } } @@ -40,8 +45,8 @@ func (p *Pod) newPodEvent(status events.Status) { e.ID = p.ID() e.Name = p.Name() e.Type = events.Pod - if err := e.Write(p.runtime.config.EventsLogFilePath); err != nil { - logrus.Errorf("unable to write event to %s", p.runtime.config.EventsLogFilePath) + if err := p.runtime.eventer.Write(e); err != nil { + logrus.Errorf("unable to write pod event: %q", err) } } @@ -50,51 +55,17 @@ func (v *Volume) newVolumeEvent(status events.Status) { e := events.NewEvent(status) e.Name = v.Name() e.Type = events.Volume - if err := e.Write(v.runtime.config.EventsLogFilePath); err != nil { - logrus.Errorf("unable to write event to %s", v.runtime.config.EventsLogFilePath) + if err := v.runtime.eventer.Write(e); err != nil { + logrus.Errorf("unable to write volume event: %q", err) } } // Events is a wrapper function for everyone to begin tailing the events log // with options -func (r *Runtime) Events(fromStart, stream bool, options []events.EventFilter, eventChannel chan *events.Event) error { - if !r.valid { - return ErrRuntimeStopped - } - - t, err := r.getTail(fromStart, stream) +func (r *Runtime) Events(options events.ReadOptions) error { + eventer, err := r.newEventer() if err != nil { return err } - for line := range t.Lines { - event, err := events.NewEventFromString(line.Text) - if err != nil { - return err - } - switch event.Type { - case events.Image, events.Volume, events.Pod, events.Container: - // no-op - default: - return errors.Errorf("event type %s is not valid in %s", event.Type.String(), r.config.EventsLogFilePath) - } - include := true - for _, filter := range options { - include = include && filter(event) - } - if include { - eventChannel <- event - } - } - close(eventChannel) - return nil -} - -func (r *Runtime) getTail(fromStart, stream bool) (*tail.Tail, error) { - reopen := true - seek := tail.SeekInfo{Offset: 0, Whence: os.SEEK_END} - if fromStart || !stream { - seek.Whence = 0 - reopen = false - } - return tail.TailFile(r.config.EventsLogFilePath, tail.Config{ReOpen: reopen, Follow: stream, Location: &seek, Logger: tail.DiscardingLogger}) + return eventer.Read(options) } diff --git a/libpod/events/config.go b/libpod/events/config.go new file mode 100644 index 000000000..d3b6d8c50 --- /dev/null +++ b/libpod/events/config.go @@ -0,0 +1,149 @@ +package events + +import ( + "time" +) + +// EventerType ... +type EventerType int + +const ( + // LogFile indicates the event logger will be a logfile + LogFile EventerType = iota + // Journald indicates journald should be used to log events + Journald EventerType = iota +) + +// Event describes the attributes of a libpod event +type Event struct { + // ContainerExitCode is for storing the exit code of a container which can + // be used for "internal" event notification + ContainerExitCode int + // ID can be for the container, image, volume, etc + ID string + // Image used where applicable + Image string + // Name where applicable + Name string + // Status describes the event that occurred + Status Status + // Time the event occurred + Time time.Time + // Type of event that occurred + Type Type +} + +// EventerOptions describe options that need to be passed to create +// an eventer +type EventerOptions struct { + // EventerType describes whether to use journald or a file + EventerType string + // LogFilePath is the path to where the log file should reside if using + // the file logger + LogFilePath string +} + +// Eventer is the interface for journald or file event logging +type Eventer interface { + // Write an event to a backend + Write(event Event) error + // Read an event from the backend + Read(options ReadOptions) error +} + +// ReadOptions describe the attributes needed to read event logs +type ReadOptions struct { + // EventChannel is the comm path back to user + EventChannel chan *Event + // Filters are key/value pairs that describe to limit output + Filters []string + // FromStart means you start reading from the start of the logs + FromStart bool + // Since reads "since" the given time + Since string + // Stream is follow + Stream bool + // Until reads "until" the given time + Until string +} + +// Type of event that occurred (container, volume, image, pod, etc) +type Type string + +// Status describes the actual event action (stop, start, create, kill) +type Status string + +const ( + // If you add or subtract any values to the following lists, make sure you also update + // the switch statements below and the enums for EventType or EventStatus in the + // varlink description file. + + // Container - event is related to containers + Container Type = "container" + // Image - event is related to images + Image Type = "image" + // Pod - event is related to pods + Pod Type = "pod" + // Volume - event is related to volumes + Volume Type = "volume" + + // Attach ... + Attach Status = "attach" + // Checkpoint ... + Checkpoint Status = "checkpoint" + // Cleanup ... + Cleanup Status = "cleanup" + // Commit ... + Commit Status = "commit" + // Create ... + Create Status = "create" + // Exec ... + Exec Status = "exec" + // Exited indicates that a container's process died + Exited Status = "died" + // Export ... + Export Status = "export" + // History ... + History Status = "history" + // Import ... + Import Status = "import" + // Init ... + Init Status = "init" + // Kill ... + Kill Status = "kill" + // LoadFromArchive ... + LoadFromArchive Status = "loadfromarchive" + // Mount ... + Mount Status = "mount" + // Pause ... + Pause Status = "pause" + // Prune ... + Prune Status = "prune" + // Pull ... + Pull Status = "pull" + // Push ... + Push Status = "push" + // Remove ... + Remove Status = "remove" + // Restore ... + Restore Status = "restore" + // Save ... + Save Status = "save" + // Start ... + Start Status = "start" + // Stop ... + Stop Status = "stop" + // Sync ... + Sync Status = "sync" + // Tag ... + Tag Status = "tag" + // Unmount ... + Unmount Status = "unmount" + // Unpause ... + Unpause Status = "unpause" + // Untag ... + Untag Status = "untag" +) + +// EventFilter for filtering events +type EventFilter func(*Event) bool diff --git a/libpod/events/events.go b/libpod/events/events.go index 074a3ba5b..e8c61faa0 100644 --- a/libpod/events/events.go +++ b/libpod/events/events.go @@ -6,109 +6,18 @@ import ( "os" "time" - "github.com/containers/storage" + "github.com/hpcloud/tail" "github.com/pkg/errors" ) -// Event describes the attributes of a libpod event -type Event struct { - // ContainerExitCode is for storing the exit code of a container which can - // be used for "internal" event notification - ContainerExitCode int - // ID can be for the container, image, volume, etc - ID string - // Image used where applicable - Image string - // Name where applicable - Name string - // Status describes the event that occurred - Status Status - // Time the event occurred - Time time.Time - // Type of event that occurred - Type Type -} - -// Type of event that occurred (container, volume, image, pod, etc) -type Type string - -// Status describes the actual event action (stop, start, create, kill) -type Status string - -const ( - // If you add or subtract any values to the following lists, make sure you also update - // the switch statements below and the enums for EventType or EventStatus in the - // varlink description file. - - // Container - event is related to containers - Container Type = "container" - // Image - event is related to images - Image Type = "image" - // Pod - event is related to pods - Pod Type = "pod" - // Volume - event is related to volumes - Volume Type = "volume" +// String returns a string representation of EventerType +func (et EventerType) String() string { + if et == LogFile { + return "file" - // Attach ... - Attach Status = "attach" - // Checkpoint ... - Checkpoint Status = "checkpoint" - // Cleanup ... - Cleanup Status = "cleanup" - // Commit ... - Commit Status = "commit" - // Create ... - Create Status = "create" - // Exec ... - Exec Status = "exec" - // Exited indicates that a container's process died - Exited Status = "died" - // Export ... - Export Status = "export" - // History ... - History Status = "history" - // Import ... - Import Status = "import" - // Init ... - Init Status = "init" - // Kill ... - Kill Status = "kill" - // LoadFromArchive ... - LoadFromArchive Status = "status" - // Mount ... - Mount Status = "mount" - // Pause ... - Pause Status = "pause" - // Prune ... - Prune Status = "prune" - // Pull ... - Pull Status = "pull" - // Push ... - Push Status = "push" - // Remove ... - Remove Status = "remove" - // Restore ... - Restore Status = "restore" - // Save ... - Save Status = "save" - // Start ... - Start Status = "start" - // Stop ... - Stop Status = "stop" - // Sync ... - Sync Status = "sync" - // Tag ... - Tag Status = "tag" - // Unmount ... - Unmount Status = "unmount" - // Unpause ... - Unpause Status = "unpause" - // Untag ... - Untag Status = "untag" -) - -// EventFilter for filtering events -type EventFilter func(*Event) bool + } + return "journald" +} // NewEvent creates a event struct and populates with // the given status and time. @@ -119,30 +28,6 @@ func NewEvent(status Status) Event { } } -// Write will record the event to the given path -func (e *Event) Write(path string) error { - // We need to lock events file - lock, err := storage.GetLockfile(path + ".lock") - if err != nil { - return err - } - lock.Lock() - defer lock.Unlock() - f, err := os.OpenFile(path, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0700) - if err != nil { - return err - } - defer f.Close() - eventJSONString, err := e.ToJSONString() - if err != nil { - return err - } - if _, err := f.WriteString(fmt.Sprintf("%s\n", eventJSONString)); err != nil { - return err - } - return nil -} - // Recycle checks if the event log has reach a limit and if so // renames the current log and starts a new one. The remove bool // indicates the old log file should be deleted. @@ -172,7 +57,7 @@ func (e *Event) ToHumanReadable() string { // NewEventFromString takes stringified json and converts // it to an event -func NewEventFromString(event string) (*Event, error) { +func newEventFromJSONString(event string) (*Event, error) { e := Event{} if err := json.Unmarshal([]byte(event), &e); err != nil { return nil, err @@ -222,6 +107,7 @@ func StringToStatus(name string) (Status, error) { case Commit.String(): return Commit, nil case Create.String(): + return Create, nil case Exec.String(): return Exec, nil @@ -270,3 +156,17 @@ func StringToStatus(name string) (Status, error) { } return "", errors.Errorf("unknown event status %s", name) } + +func (e EventLogFile) getTail(options ReadOptions) (*tail.Tail, error) { + reopen := true + seek := tail.SeekInfo{Offset: 0, Whence: os.SEEK_END} + if options.FromStart || !options.Stream { + seek.Whence = 0 + reopen = false + } + stream := options.Stream + if len(options.Until) > 0 { + stream = false + } + return tail.TailFile(e.options.LogFilePath, tail.Config{ReOpen: reopen, Follow: stream, Location: &seek, Logger: tail.DiscardingLogger}) +} diff --git a/libpod/events/events_linux.go b/libpod/events/events_linux.go new file mode 100644 index 000000000..d6898145c --- /dev/null +++ b/libpod/events/events_linux.go @@ -0,0 +1,20 @@ +package events + +import ( + "github.com/pkg/errors" + "strings" +) + +// NewEventer creates an eventer based on the eventer type +func NewEventer(options EventerOptions) (Eventer, error) { + var eventer Eventer + switch strings.ToUpper(options.EventerType) { + case strings.ToUpper(Journald.String()): + eventer = EventJournalD{options} + case strings.ToUpper(LogFile.String()): + eventer = EventLogFile{options} + default: + return eventer, errors.Errorf("unknown event logger type: %s", strings.ToUpper(options.EventerType)) + } + return eventer, nil +} diff --git a/libpod/events/events_unsupported.go b/libpod/events/events_unsupported.go new file mode 100644 index 000000000..5b32a1b4b --- /dev/null +++ b/libpod/events/events_unsupported.go @@ -0,0 +1,10 @@ +// +build !linux + +package events + +import "github.com/pkg/errors" + +// NewEventer creates an eventer based on the eventer type +func NewEventer(options EventerOptions) (Eventer, error) { + return nil, errors.New("this function is not available for your platform") +} diff --git a/cmd/podman/shared/events.go b/libpod/events/filters.go index c62044271..9a64082d1 100644 --- a/cmd/podman/shared/events.go +++ b/libpod/events/filters.go @@ -1,20 +1,19 @@ -package shared +package events import ( "fmt" "strings" "time" - "github.com/containers/libpod/libpod/events" "github.com/containers/libpod/pkg/util" "github.com/pkg/errors" ) -func generateEventFilter(filter, filterValue string) (func(e *events.Event) bool, error) { +func generateEventFilter(filter, filterValue string) (func(e *Event) bool, error) { switch strings.ToUpper(filter) { case "CONTAINER": - return func(e *events.Event) bool { - if e.Type != events.Container { + return func(e *Event) bool { + if e.Type != Container { return false } if e.Name == filterValue { @@ -23,12 +22,12 @@ func generateEventFilter(filter, filterValue string) (func(e *events.Event) bool return strings.HasPrefix(e.ID, filterValue) }, nil case "EVENT", "STATUS": - return func(e *events.Event) bool { + return func(e *Event) bool { return fmt.Sprintf("%s", e.Status) == filterValue }, nil case "IMAGE": - return func(e *events.Event) bool { - if e.Type != events.Image { + return func(e *Event) bool { + if e.Type != Image { return false } if e.Name == filterValue { @@ -37,8 +36,8 @@ func generateEventFilter(filter, filterValue string) (func(e *events.Event) bool return strings.HasPrefix(e.ID, filterValue) }, nil case "POD": - return func(e *events.Event) bool { - if e.Type != events.Pod { + return func(e *Event) bool { + if e.Type != Pod { return false } if e.Name == filterValue { @@ -47,28 +46,28 @@ func generateEventFilter(filter, filterValue string) (func(e *events.Event) bool return strings.HasPrefix(e.ID, filterValue) }, nil case "VOLUME": - return func(e *events.Event) bool { - if e.Type != events.Volume { + return func(e *Event) bool { + if e.Type != Volume { return false } return strings.HasPrefix(e.ID, filterValue) }, nil case "TYPE": - return func(e *events.Event) bool { + return func(e *Event) bool { return fmt.Sprintf("%s", e.Type) == filterValue }, nil } return nil, errors.Errorf("%s is an invalid filter", filter) } -func generateEventSinceOption(timeSince time.Time) func(e *events.Event) bool { - return func(e *events.Event) bool { +func generateEventSinceOption(timeSince time.Time) func(e *Event) bool { + return func(e *Event) bool { return e.Time.After(timeSince) } } -func generateEventUntilOption(timeUntil time.Time) func(e *events.Event) bool { - return func(e *events.Event) bool { +func generateEventUntilOption(timeUntil time.Time) func(e *Event) bool { + return func(e *Event) bool { return e.Time.Before(timeUntil) } @@ -82,8 +81,8 @@ func parseFilter(filter string) (string, string, error) { return filterSplit[0], filterSplit[1], nil } -func GenerateEventOptions(filters []string, since, until string) ([]events.EventFilter, error) { - var options []events.EventFilter +func generateEventOptions(filters []string, since, until string) ([]EventFilter, error) { + var options []EventFilter for _, filter := range filters { key, val, err := parseFilter(filter) if err != nil { diff --git a/libpod/events/journal_linux.go b/libpod/events/journal_linux.go new file mode 100644 index 000000000..e6b54db1d --- /dev/null +++ b/libpod/events/journal_linux.go @@ -0,0 +1,131 @@ +package events + +import ( + "fmt" + "time" + + "github.com/coreos/go-systemd/journal" + "github.com/coreos/go-systemd/sdjournal" + "github.com/pkg/errors" +) + +// EventJournalD is the journald implementation of an eventer +type EventJournalD struct { + options EventerOptions +} + +// Write to journald +func (e EventJournalD) Write(ee Event) error { + m := make(map[string]string) + m["SYSLOG_IDENTIFIER"] = "podman" + m["PODMAN_EVENT"] = ee.Status.String() + m["PODMAN_TYPE"] = ee.Type.String() + m["PODMAN_TIME"] = ee.Time.Format(time.RFC3339Nano) + + // Add specialized information based on the podman type + switch ee.Type { + case Image: + m["PODMAN_NAME"] = ee.Name + m["PODMAN_ID"] = ee.ID + case Container, Pod: + m["PODMAN_IMAGE"] = ee.Image + m["PODMAN_NAME"] = ee.Name + m["PODMAN_ID"] = ee.ID + case Volume: + m["PODMAN_NAME"] = ee.Name + } + return journal.Send(fmt.Sprintf("%s", ee.ToHumanReadable()), journal.PriInfo, m) +} + +// Read reads events from the journal and sends qualified events to the event channel +func (e EventJournalD) Read(options ReadOptions) error { + eventOptions, err := generateEventOptions(options.Filters, options.Since, options.Until) + if err != nil { + return errors.Wrapf(err, "failed to generate event options") + } + podmanJournal := sdjournal.Match{Field: "SYSLOG_IDENTIFIER", Value: "podman"} //nolint + j, err := sdjournal.NewJournal() //nolint + if err != nil { + return err + } + if err := j.AddMatch(podmanJournal.String()); err != nil { + return errors.Wrap(err, "failed to add filter for event log") + } + if len(options.Since) == 0 && len(options.Until) == 0 && options.Stream { + if err := j.SeekTail(); err != nil { + return errors.Wrap(err, "failed to seek end of journal") + } + } + // the api requires a next|prev before getting a cursor + if _, err := j.Next(); err != nil { + return err + } + prevCursor, err := j.GetCursor() + if err != nil { + return err + } + defer close(options.EventChannel) + for { + if _, err := j.Next(); err != nil { + return err + } + newCursor, err := j.GetCursor() + if err != nil { + return err + } + if prevCursor == newCursor { + if len(options.Until) > 0 || !options.Stream { + break + } + _ = j.Wait(sdjournal.IndefiniteWait) //nolint + continue + } + prevCursor = newCursor + entry, err := j.GetEntry() + if err != nil { + return err + } + newEvent, err := newEventFromJournalEntry(entry) + if err != nil { + return err + } + include := true + for _, filter := range eventOptions { + include = include && filter(newEvent) + } + if include { + options.EventChannel <- newEvent + } + } + return nil + +} + +func newEventFromJournalEntry(entry *sdjournal.JournalEntry) (*Event, error) { //nolint + newEvent := Event{} + eventType, err := StringToType(entry.Fields["PODMAN_TYPE"]) + if err != nil { + return nil, err + } + eventTime, err := time.Parse(time.RFC3339Nano, entry.Fields["PODMAN_TIME"]) + if err != nil { + return nil, err + } + eventStatus, err := StringToStatus(entry.Fields["PODMAN_EVENT"]) + if err != nil { + return nil, err + } + newEvent.Type = eventType + newEvent.Time = eventTime + newEvent.Status = eventStatus + newEvent.Name = entry.Fields["PODMAN_NAME"] + + switch eventType { + case Container, Pod: + newEvent.ID = entry.Fields["PODMAN_ID"] + newEvent.Image = entry.Fields["PODMAN_IMAGE"] + case Image: + newEvent.ID = entry.Fields["PODMAN_ID"] + } + return &newEvent, nil +} diff --git a/libpod/events/logfile.go b/libpod/events/logfile.go new file mode 100644 index 000000000..3232b86d0 --- /dev/null +++ b/libpod/events/logfile.go @@ -0,0 +1,65 @@ +package events + +import ( + "fmt" + "os" + + "github.com/pkg/errors" +) + +// EventLogFile is the structure for event writing to a logfile. It contains the eventer +// options and the event itself. Methods for reading and writing are also defined from it. +type EventLogFile struct { + options EventerOptions +} + +// Writes to the log file +func (e EventLogFile) Write(ee Event) error { + f, err := os.OpenFile(e.options.LogFilePath, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0700) + if err != nil { + return err + } + defer f.Close() + eventJSONString, err := ee.ToJSONString() + if err != nil { + return err + } + if _, err := f.WriteString(fmt.Sprintf("%s\n", eventJSONString)); err != nil { + return err + } + return nil + +} + +// Reads from the log file +func (e EventLogFile) Read(options ReadOptions) error { + eventOptions, err := generateEventOptions(options.Filters, options.Since, options.Until) + if err != nil { + return errors.Wrapf(err, "unable to generate event options") + } + t, err := e.getTail(options) + if err != nil { + return err + } + for line := range t.Lines { + event, err := newEventFromJSONString(line.Text) + if err != nil { + return err + } + switch event.Type { + case Image, Volume, Pod, Container: + // no-op + default: + return errors.Errorf("event type %s is not valid in %s", event.Type.String(), e.options.LogFilePath) + } + include := true + for _, filter := range eventOptions { + include = include && filter(event) + } + if include { + options.EventChannel <- event + } + } + close(options.EventChannel) + return nil +} diff --git a/libpod/events/nullout.go b/libpod/events/nullout.go new file mode 100644 index 000000000..7d811a9c7 --- /dev/null +++ b/libpod/events/nullout.go @@ -0,0 +1,23 @@ +package events + +// EventToNull is an eventer type that only performs write operations +// and only writes to /dev/null. It is meant for unittests only +type EventToNull struct{} + +// Write eats the event and always returns nil +func (e EventToNull) Write(ee Event) error { + return nil +} + +// Read does nothing. Do not use it. +func (e EventToNull) Read(options ReadOptions) error { + return nil +} + +// NewNullEventer returns a new null eventer. You should only do this for +// the purposes on internal libpod testing. +func NewNullEventer() Eventer { + var e Eventer + e = EventToNull{} + return e +} diff --git a/libpod/image/image.go b/libpod/image/image.go index 757d034a2..b965a4640 100644 --- a/libpod/image/image.go +++ b/libpod/image/image.go @@ -66,6 +66,8 @@ type Runtime struct { store storage.Store SignaturePolicyPath string EventsLogFilePath string + EventsLogger string + Eventer events.Eventer } // InfoImage keep information of Image along with all associated layers @@ -353,8 +355,8 @@ func (i *Image) TopLayer() string { // outside the context of images // TODO: the force param does nothing as of now. Need to move container // handling logic here eventually. -func (i *Image) Remove(force bool) error { - parent, err := i.GetParent() +func (i *Image) Remove(ctx context.Context, force bool) error { + parent, err := i.GetParent(ctx) if err != nil { return err } @@ -363,11 +365,11 @@ func (i *Image) Remove(force bool) error { } i.newImageEvent(events.Remove) for parent != nil { - nextParent, err := parent.GetParent() + nextParent, err := parent.GetParent(ctx) if err != nil { return err } - children, err := parent.GetChildren() + children, err := parent.GetChildren(ctx) if err != nil { return err } @@ -679,7 +681,8 @@ type History struct { Comment string `json:"comment"` } -// History gets the history of an image and information about its layers +// History gets the history of an image and the IDs of images that are part of +// its history func (i *Image) History(ctx context.Context) ([]*History, error) { img, err := i.toImageRef(ctx) if err != nil { @@ -690,31 +693,92 @@ func (i *Image) History(ctx context.Context) ([]*History, error) { return nil, err } - // Get the IDs of the images making up the history layers - // if the images exist locally in the store + // Use our layers list to find images that use one of them as its + // topmost layer. + interestingLayers := make(map[string]bool) + layer, err := i.imageruntime.store.Layer(i.TopLayer()) + if err != nil { + return nil, err + } + for layer != nil { + interestingLayers[layer.ID] = true + if layer.Parent == "" { + break + } + layer, err = i.imageruntime.store.Layer(layer.Parent) + if err != nil { + return nil, err + } + } + + // Get the IDs of the images that share some of our layers. Hopefully + // this step means that we'll be able to avoid reading the + // configuration of every single image in local storage later on. images, err := i.imageruntime.GetImages() if err != nil { return nil, errors.Wrapf(err, "error getting images from store") } - imageIDs := []string{i.ID()} - if err := i.historyLayerIDs(i.TopLayer(), images, &imageIDs); err != nil { - return nil, errors.Wrap(err, "error getting image IDs for layers in history") + interestingImages := make([]*Image, 0, len(images)) + for i := range images { + if interestingLayers[images[i].TopLayer()] { + interestingImages = append(interestingImages, images[i]) + } + } + + // Build a list of image IDs that correspond to our history entries. + historyImages := make([]*Image, len(oci.History)) + if len(oci.History) > 0 { + // The starting image shares its whole history with itself. + historyImages[len(historyImages)-1] = i + for i := range interestingImages { + image, err := images[i].ociv1Image(ctx) + if err != nil { + return nil, errors.Wrapf(err, "error getting image configuration for image %q", images[i].ID()) + } + // If the candidate has a longer history or no history + // at all, then it doesn't share the portion of our + // history that we're interested in matching with other + // images. + if len(image.History) == 0 || len(image.History) > len(historyImages) { + continue + } + // If we don't include all of the layers that the + // candidate image does (i.e., our rootfs didn't look + // like its rootfs at any point), then it can't be part + // of our history. + if len(image.RootFS.DiffIDs) > len(oci.RootFS.DiffIDs) { + continue + } + candidateLayersAreUsed := true + for i := range image.RootFS.DiffIDs { + if image.RootFS.DiffIDs[i] != oci.RootFS.DiffIDs[i] { + candidateLayersAreUsed = false + break + } + } + if !candidateLayersAreUsed { + continue + } + // If the candidate's entire history is an initial + // portion of our history, then we're based on it, + // either directly or indirectly. + sharedHistory := historiesMatch(oci.History, image.History) + if sharedHistory == len(image.History) { + historyImages[sharedHistory-1] = images[i] + } + } } var ( - imageID string - imgIDCount = 0 size int64 sizeCount = 1 allHistory []*History ) for i := len(oci.History) - 1; i >= 0; i-- { - if imgIDCount < len(imageIDs) { - imageID = imageIDs[imgIDCount] - imgIDCount++ - } else { - imageID = "<missing>" + imageID := "<missing>" + if historyImages[i] != nil { + imageID = historyImages[i].ID() } if !oci.History[i].EmptyLayer { size = img.LayerInfos()[len(img.LayerInfos())-sizeCount].Size @@ -1006,26 +1070,110 @@ func splitString(input string) string { // IsParent goes through the layers in the store and checks if i.TopLayer is // the parent of any other layer in store. Double check that image with that // layer exists as well. -func (i *Image) IsParent() (bool, error) { - children, err := i.GetChildren() +func (i *Image) IsParent(ctx context.Context) (bool, error) { + children, err := i.getChildren(ctx, 1) if err != nil { return false, err } return len(children) > 0, nil } +// historiesMatch returns the number of entries in the histories which have the +// same contents +func historiesMatch(a, b []imgspecv1.History) int { + i := 0 + for i < len(a) && i < len(b) { + if a[i].Created != nil && b[i].Created == nil { + return i + } + if a[i].Created == nil && b[i].Created != nil { + return i + } + if a[i].Created != nil && b[i].Created != nil { + if !a[i].Created.Equal(*(b[i].Created)) { + return i + } + } + if a[i].CreatedBy != b[i].CreatedBy { + return i + } + if a[i].Author != b[i].Author { + return i + } + if a[i].Comment != b[i].Comment { + return i + } + if a[i].EmptyLayer != b[i].EmptyLayer { + return i + } + i++ + } + return i +} + +// areParentAndChild checks diff ID and history in the two images and return +// true if the second should be considered to be directly based on the first +func areParentAndChild(parent, child *imgspecv1.Image) bool { + // the child and candidate parent should share all of the + // candidate parent's diff IDs, which together would have + // controlled which layers were used + if len(parent.RootFS.DiffIDs) > len(child.RootFS.DiffIDs) { + return false + } + childUsesCandidateDiffs := true + for i := range parent.RootFS.DiffIDs { + if child.RootFS.DiffIDs[i] != parent.RootFS.DiffIDs[i] { + childUsesCandidateDiffs = false + break + } + } + if !childUsesCandidateDiffs { + return false + } + // the child should have the same history as the parent, plus + // one more entry + if len(parent.History)+1 != len(child.History) { + return false + } + if historiesMatch(parent.History, child.History) != len(parent.History) { + return false + } + return true +} + // GetParent returns the image ID of the parent. Return nil if a parent is not found. -func (i *Image) GetParent() (*Image, error) { +func (i *Image) GetParent(ctx context.Context) (*Image, error) { images, err := i.imageruntime.GetImages() if err != nil { return nil, err } - layer, err := i.imageruntime.store.Layer(i.TopLayer()) + childLayer, err := i.imageruntime.store.Layer(i.TopLayer()) + if err != nil { + return nil, err + } + // fetch the configuration for the child image + child, err := i.ociv1Image(ctx) if err != nil { return nil, err } for _, img := range images { - if img.TopLayer() == layer.Parent { + if img.ID() == i.ID() { + continue + } + candidateLayer := img.TopLayer() + // as a child, our top layer is either the candidate parent's + // layer, or one that's derived from it, so skip over any + // candidate image where we know that isn't the case + if candidateLayer != childLayer.Parent && candidateLayer != childLayer.ID { + continue + } + // fetch the configuration for the candidate image + candidate, err := img.ociv1Image(ctx) + if err != nil { + return nil, err + } + // compare them + if areParentAndChild(candidate, child) { return img, nil } } @@ -1033,36 +1181,53 @@ func (i *Image) GetParent() (*Image, error) { } // GetChildren returns a list of the imageIDs that depend on the image -func (i *Image) GetChildren() ([]string, error) { +func (i *Image) GetChildren(ctx context.Context) ([]string, error) { + return i.getChildren(ctx, 0) +} + +// getChildren returns a list of at most "max" imageIDs that depend on the image +func (i *Image) getChildren(ctx context.Context, max int) ([]string, error) { var children []string images, err := i.imageruntime.GetImages() if err != nil { return nil, err } - layers, err := i.imageruntime.store.Layers() + + // fetch the configuration for the parent image + parent, err := i.ociv1Image(ctx) if err != nil { return nil, err } + parentLayer := i.TopLayer() - for _, layer := range layers { - if layer.Parent == i.TopLayer() { - if imageID := getImageOfTopLayer(images, layer.ID); len(imageID) > 0 { - children = append(children, imageID...) - } - } - } - return children, nil -} - -// getImageOfTopLayer returns the image ID where layer is the top layer of the image -func getImageOfTopLayer(images []*Image, layer string) []string { - var matches []string for _, img := range images { - if img.TopLayer() == layer { - matches = append(matches, img.ID()) + if img.ID() == i.ID() { + continue + } + candidateLayer, err := img.Layer() + if err != nil { + return nil, err + } + // if this image's top layer is not our top layer, and is not + // based on our top layer, we can skip it + if candidateLayer.Parent != parentLayer && candidateLayer.ID != parentLayer { + continue + } + // fetch the configuration for the candidate image + candidate, err := img.ociv1Image(ctx) + if err != nil { + return nil, err + } + // compare them + if areParentAndChild(parent, candidate) { + children = append(children, img.ID()) + } + // if we're not building an exhaustive list, maybe we're done? + if max > 0 && len(children) >= max { + break } } - return matches + return children, nil } // InputIsID returns a bool if the user input for an image @@ -1203,7 +1368,7 @@ func (ir *Runtime) newImageEvent(status events.Status, name string) { e := events.NewEvent(status) e.Type = events.Image e.Name = name - if err := e.Write(ir.EventsLogFilePath); err != nil { + if err := ir.Eventer.Write(e); err != nil { logrus.Infof("unable to write event to %s", ir.EventsLogFilePath) } } @@ -1216,7 +1381,7 @@ func (i *Image) newImageEvent(status events.Status) { if len(i.Names()) > 0 { e.Name = i.Names()[0] } - if err := e.Write(i.imageruntime.EventsLogFilePath); err != nil { + if err := i.imageruntime.Eventer.Write(e); err != nil { logrus.Infof("unable to write event to %s", i.imageruntime.EventsLogFilePath) } } diff --git a/libpod/image/image_test.go b/libpod/image/image_test.go index 075ba119d..e93ebf797 100644 --- a/libpod/image/image_test.go +++ b/libpod/image/image_test.go @@ -3,6 +3,7 @@ package image import ( "context" "fmt" + "github.com/containers/libpod/libpod/events" "io" "io/ioutil" "os" @@ -87,6 +88,7 @@ func TestImage_NewFromLocal(t *testing.T) { // Need images to be present for this test ir, err := NewImageRuntimeFromOptions(so) assert.NoError(t, err) + ir.Eventer = events.NewNullEventer() bb, err := ir.New(context.Background(), "docker.io/library/busybox:latest", "", "", writer, nil, SigningOptions{}, false, nil) assert.NoError(t, err) bbglibc, err := ir.New(context.Background(), "docker.io/library/busybox:glibc", "", "", writer, nil, SigningOptions{}, false, nil) @@ -127,6 +129,7 @@ func TestImage_New(t *testing.T) { } ir, err := NewImageRuntimeFromOptions(so) assert.NoError(t, err) + ir.Eventer = events.NewNullEventer() // Build the list of pull names names = append(names, bbNames...) names = append(names, fedoraNames...) @@ -139,7 +142,7 @@ func TestImage_New(t *testing.T) { newImage, err := ir.New(context.Background(), img, "", "", writer, nil, SigningOptions{}, false, nil) assert.NoError(t, err) assert.NotEqual(t, newImage.ID(), "") - err = newImage.Remove(false) + err = newImage.Remove(context.Background(), false) assert.NoError(t, err) } @@ -164,6 +167,7 @@ func TestImage_MatchRepoTag(t *testing.T) { } ir, err := NewImageRuntimeFromOptions(so) assert.NoError(t, err) + ir.Eventer = events.NewNullEventer() newImage, err := ir.New(context.Background(), "busybox", "", "", os.Stdout, nil, SigningOptions{}, false, nil) assert.NoError(t, err) err = newImage.TagImage("foo:latest") diff --git a/libpod/image/prune.go b/libpod/image/prune.go index 5bd3c2c99..a4f8a0c9f 100644 --- a/libpod/image/prune.go +++ b/libpod/image/prune.go @@ -1,6 +1,8 @@ package image import ( + "context" + "github.com/containers/libpod/libpod/events" "github.com/pkg/errors" ) @@ -34,14 +36,14 @@ func (ir *Runtime) GetPruneImages(all bool) ([]*Image, error) { // PruneImages prunes dangling and optionally all unused images from the local // image store -func (ir *Runtime) PruneImages(all bool) ([]string, error) { +func (ir *Runtime) PruneImages(ctx context.Context, all bool) ([]string, error) { var prunedCids []string pruneImages, err := ir.GetPruneImages(all) if err != nil { return nil, errors.Wrap(err, "unable to get images to prune") } for _, p := range pruneImages { - if err := p.Remove(true); err != nil { + if err := p.Remove(ctx, true); err != nil { return nil, errors.Wrap(err, "failed to prune image") } defer p.newImageEvent(events.Prune) diff --git a/libpod/runtime.go b/libpod/runtime.go index 3b1c2be98..d03731284 100644 --- a/libpod/runtime.go +++ b/libpod/runtime.go @@ -2,6 +2,7 @@ package libpod import ( "fmt" + "github.com/containers/libpod/libpod/events" "io/ioutil" "os" "path/filepath" @@ -105,6 +106,9 @@ type Runtime struct { // storage unusable). When valid is false, the runtime cannot be used. valid bool lock sync.RWMutex + + // mechanism to read and write even logs + eventer events.Eventer } // OCIRuntimePath contains information about an OCI runtime. @@ -222,6 +226,8 @@ type RuntimeConfig struct { // pods. NumLocks uint32 `toml:"num_locks,omitempty"` + // EventsLogger determines where events should be logged + EventsLogger string `toml:"events_logger"` // EventsLogFilePath is where the events log is stored. EventsLogFilePath string `toml:-"events_logfile_path"` } @@ -252,7 +258,6 @@ func defaultRuntimeConfig() (RuntimeConfig, error) { if err != nil { return RuntimeConfig{}, err } - return RuntimeConfig{ // Leave this empty so containers/storage will use its defaults StorageConfig: storage.StoreOptions{}, @@ -296,6 +301,7 @@ func defaultRuntimeConfig() (RuntimeConfig, error) { EnablePortReservation: true, EnableLabeling: true, NumLocks: 2048, + EventsLogger: "journald", }, nil } @@ -755,16 +761,24 @@ func makeRuntime(runtime *Runtime) (err error) { // Set up image runtime and store in runtime ir := image.NewImageRuntimeFromStore(runtime.store) - if err != nil { - return err - } runtime.imageRuntime = ir // Setting signaturepolicypath ir.SignaturePolicyPath = runtime.config.SignaturePolicyPath + // Set logfile path for events ir.EventsLogFilePath = runtime.config.EventsLogFilePath + // Set logger type + ir.EventsLogger = runtime.config.EventsLogger + + // Setup the eventer + eventer, err := runtime.newEventer() + if err != nil { + return err + } + runtime.eventer = eventer + ir.Eventer = eventer defer func() { if err != nil && store != nil { @@ -1018,6 +1032,8 @@ func (r *Runtime) Shutdown(force bool) error { // Refreshes the state, recreating temporary files // Does not check validity as the runtime is not valid until after this has run func (r *Runtime) refresh(alivePath string) error { + logrus.Debugf("Podman detected system restart - performing state refresh") + // First clear the state in the database if err := r.state.Refresh(); err != nil { return err diff --git a/libpod/runtime_img.go b/libpod/runtime_img.go index 02f925fc6..5e9f65acc 100644 --- a/libpod/runtime_img.go +++ b/libpod/runtime_img.go @@ -57,7 +57,7 @@ func (r *Runtime) RemoveImage(ctx context.Context, img *image.Image, force bool) } } - hasChildren, err := img.IsParent() + hasChildren, err := img.IsParent(ctx) if err != nil { return "", err } @@ -82,12 +82,12 @@ func (r *Runtime) RemoveImage(ctx context.Context, img *image.Image, force bool) // reponames and no force is applied, we error out. return "", fmt.Errorf("unable to delete %s (must force) - image is referred to in multiple tags", img.ID()) } - err = img.Remove(force) + err = img.Remove(ctx, force) if err != nil && errors.Cause(err) == storage.ErrImageUsedByContainer { if errStorage := r.rmStorageContainers(force, img); errStorage == nil { // Containers associated with the image should be deleted now, // let's try removing the image again. - err = img.Remove(force) + err = img.Remove(ctx, force) } else { err = errStorage } diff --git a/pkg/adapter/containers.go b/pkg/adapter/containers.go index 5279f11b2..9f5fc7e65 100644 --- a/pkg/adapter/containers.go +++ b/pkg/adapter/containers.go @@ -92,6 +92,9 @@ func (r *LocalRuntime) StopContainers(ctx context.Context, cli *cliconfig.StopVa if errors.Cause(err) == libpod.ErrCtrStopped { logrus.Debugf("Container %s is already stopped", c.ID()) return nil + } else if cli.All && errors.Cause(err) == libpod.ErrCtrStateInvalid { + logrus.Debugf("Container %s is not running, could not stop", c.ID()) + return nil } logrus.Debugf("Failed to stop container %s: %s", c.ID(), err.Error()) } @@ -694,3 +697,92 @@ func (r *LocalRuntime) UnpauseContainers(ctx context.Context, cli *cliconfig.Unp } return pool.Run() } + +// Restart containers without or without a timeout +func (r *LocalRuntime) Restart(ctx context.Context, c *cliconfig.RestartValues) ([]string, map[string]error, error) { + var ( + containers []*libpod.Container + restartContainers []*libpod.Container + err error + ) + useTimeout := c.Flag("timeout").Changed || c.Flag("time").Changed + inputTimeout := c.Timeout + + // Handle --latest + if c.Latest { + lastCtr, err := r.Runtime.GetLatestContainer() + if err != nil { + return nil, nil, errors.Wrapf(err, "unable to get latest container") + } + restartContainers = append(restartContainers, lastCtr) + } else if c.Running { + containers, err = r.GetRunningContainers() + if err != nil { + return nil, nil, err + } + restartContainers = append(restartContainers, containers...) + } else if c.All { + containers, err = r.Runtime.GetAllContainers() + if err != nil { + return nil, nil, err + } + restartContainers = append(restartContainers, containers...) + } else { + for _, id := range c.InputArgs { + ctr, err := r.Runtime.LookupContainer(id) + if err != nil { + return nil, nil, err + } + restartContainers = append(restartContainers, ctr) + } + } + + maxWorkers := shared.DefaultPoolSize("restart") + if c.GlobalIsSet("max-workers") { + maxWorkers = c.GlobalFlags.MaxWorks + } + + logrus.Debugf("Setting maximum workers to %d", maxWorkers) + + // We now have a slice of all the containers to be restarted. Iterate them to + // create restart Funcs with a timeout as needed + pool := shared.NewPool("restart", maxWorkers, len(restartContainers)) + for _, c := range restartContainers { + ctr := c + timeout := ctr.StopTimeout() + if useTimeout { + timeout = inputTimeout + } + pool.Add(shared.Job{ + ID: ctr.ID(), + Fn: func() error { + err := ctr.RestartWithTimeout(ctx, timeout) + if err != nil { + logrus.Debugf("Failed to restart container %s: %s", ctr.ID(), err.Error()) + } + return err + }, + }) + } + return pool.Run() +} + +// Top display the running processes of a container +func (r *LocalRuntime) Top(cli *cliconfig.TopValues) ([]string, error) { + var ( + descriptors []string + container *libpod.Container + err error + ) + if cli.Latest { + descriptors = cli.InputArgs + container, err = r.Runtime.GetLatestContainer() + } else { + descriptors = cli.InputArgs[1:] + container, err = r.Runtime.LookupContainer(cli.InputArgs[0]) + } + if err != nil { + return nil, errors.Wrapf(err, "unable to lookup requested container") + } + return container.Top(descriptors) +} diff --git a/pkg/adapter/containers_remote.go b/pkg/adapter/containers_remote.go index cb61871bf..ef6d0efe1 100644 --- a/pkg/adapter/containers_remote.go +++ b/pkg/adapter/containers_remote.go @@ -45,6 +45,12 @@ func (c *Container) ID() string { return c.config.ID } +// Restart a single container +func (c *Container) Restart(timeout int64) error { + _, err := iopodman.RestartContainer().Call(c.Runtime.Conn, c.ID(), timeout) + return err +} + // Pause a container func (c *Container) Pause() error { _, err := iopodman.PauseContainer().Call(c.Runtime.Conn, c.ID()) @@ -132,6 +138,23 @@ func (r *LocalRuntime) LookupContainer(idOrName string) (*Container, error) { }, nil } +// GetAllContainers returns all containers in a slice +func (r *LocalRuntime) GetAllContainers() ([]*Container, error) { + var containers []*Container + ctrs, err := iopodman.GetContainersByContext().Call(r.Conn, true, false, []string{}) + if err != nil { + return nil, err + } + for _, ctr := range ctrs { + container, err := r.LookupContainer(ctr) + if err != nil { + return nil, err + } + containers = append(containers, container) + } + return containers, nil +} + func (r *LocalRuntime) LookupContainersWithStatus(filters []string) ([]*Container, error) { var containers []*Container ctrs, err := iopodman.GetContainersByStatus().Call(r.Conn, filters) @@ -753,3 +776,79 @@ func (r *LocalRuntime) UnpauseContainers(ctx context.Context, cli *cliconfig.Unp } return ok, failures, nil } + +// Restart restarts a container over varlink +func (r *LocalRuntime) Restart(ctx context.Context, c *cliconfig.RestartValues) ([]string, map[string]error, error) { + var ( + containers []*Container + restartContainers []*Container + err error + ok = []string{} + failures = map[string]error{} + ) + useTimeout := c.Flag("timeout").Changed || c.Flag("time").Changed + inputTimeout := c.Timeout + + if c.Latest { + lastCtr, err := r.GetLatestContainer() + if err != nil { + return nil, nil, errors.Wrapf(err, "unable to get latest container") + } + restartContainers = append(restartContainers, lastCtr) + } else if c.Running { + containers, err = r.LookupContainersWithStatus([]string{libpod.ContainerStateRunning.String()}) + if err != nil { + return nil, nil, err + } + restartContainers = append(restartContainers, containers...) + } else if c.All { + containers, err = r.GetAllContainers() + if err != nil { + return nil, nil, err + } + restartContainers = append(restartContainers, containers...) + } else { + for _, id := range c.InputArgs { + ctr, err := r.LookupContainer(id) + if err != nil { + return nil, nil, err + } + restartContainers = append(restartContainers, ctr) + } + } + + for _, c := range restartContainers { + c := c + timeout := c.config.StopTimeout + if useTimeout { + timeout = inputTimeout + } + err := c.Restart(int64(timeout)) + if err != nil { + failures[c.ID()] = err + } else { + ok = append(ok, c.ID()) + } + } + return ok, failures, nil +} + +// Top display the running processes of a container +func (r *LocalRuntime) Top(cli *cliconfig.TopValues) ([]string, error) { + var ( + ctr *Container + err error + descriptors []string + ) + if cli.Latest { + ctr, err = r.GetLatestContainer() + descriptors = cli.InputArgs + } else { + ctr, err = r.LookupContainer(cli.InputArgs[0]) + descriptors = cli.InputArgs[1:] + } + if err != nil { + return nil, err + } + return iopodman.Top().Call(r.Conn, ctr.ID(), descriptors) +} diff --git a/pkg/adapter/runtime.go b/pkg/adapter/runtime.go index 753f7c944..790ed5c89 100644 --- a/pkg/adapter/runtime.go +++ b/pkg/adapter/runtime.go @@ -5,6 +5,7 @@ package adapter import ( "bufio" "context" + "github.com/containers/libpod/cmd/podman/shared" "io" "io/ioutil" "os" @@ -17,7 +18,6 @@ import ( "github.com/containers/image/types" "github.com/containers/libpod/cmd/podman/cliconfig" "github.com/containers/libpod/cmd/podman/libpodruntime" - "github.com/containers/libpod/cmd/podman/shared" "github.com/containers/libpod/libpod" "github.com/containers/libpod/libpod/events" "github.com/containers/libpod/libpod/image" @@ -119,8 +119,8 @@ func (r *LocalRuntime) RemoveImage(ctx context.Context, img *ContainerImage, for } // PruneImages is wrapper into PruneImages within the image pkg -func (r *LocalRuntime) PruneImages(all bool) ([]string, error) { - return r.ImageRuntime().PruneImages(all) +func (r *LocalRuntime) PruneImages(ctx context.Context, all bool) ([]string, error) { + return r.ImageRuntime().PruneImages(ctx, all) } // Export is a wrapper to container export to a tarfile @@ -322,10 +322,6 @@ func (r *LocalRuntime) Events(c *cliconfig.EventValues) error { fromStart bool eventsError error ) - options, err := shared.GenerateEventOptions(c.Filter, c.Since, c.Until) - if err != nil { - return errors.Wrapf(err, "unable to generate event options") - } tmpl, err := template.New("events").Parse(c.Format) if err != nil { return err @@ -335,7 +331,8 @@ func (r *LocalRuntime) Events(c *cliconfig.EventValues) error { } eventChannel := make(chan *events.Event) go func() { - eventsError = r.Runtime.Events(fromStart, c.Stream, options, eventChannel) + readOpts := events.ReadOptions{FromStart: fromStart, Stream: c.Stream, Filters: c.Filter, EventChannel: eventChannel, Since: c.Since, Until: c.Until} + eventsError = r.Runtime.Events(readOpts) }() if eventsError != nil { diff --git a/pkg/adapter/runtime_remote.go b/pkg/adapter/runtime_remote.go index dcb0924ce..29ee821e0 100644 --- a/pkg/adapter/runtime_remote.go +++ b/pkg/adapter/runtime_remote.go @@ -256,7 +256,7 @@ func (r *LocalRuntime) New(ctx context.Context, name, signaturePolicyPath, authf // IsParent goes through the layers in the store and checks if i.TopLayer is // the parent of any other layer in store. Double check that image with that // layer exists as well. -func (ci *ContainerImage) IsParent() (bool, error) { +func (ci *ContainerImage) IsParent(context.Context) (bool, error) { return ci.remoteImage.isParent, nil } @@ -338,7 +338,7 @@ func (ci *ContainerImage) History(ctx context.Context) ([]*image.History, error) } // PruneImages is the wrapper call for a remote-client to prune images -func (r *LocalRuntime) PruneImages(all bool) ([]string, error) { +func (r *LocalRuntime) PruneImages(ctx context.Context, all bool) ([]string, error) { return iopodman.ImagesPrune().Call(r.Conn, all) } diff --git a/pkg/varlinkapi/containers.go b/pkg/varlinkapi/containers.go index 237407050..872c7bc26 100644 --- a/pkg/varlinkapi/containers.go +++ b/pkg/varlinkapi/containers.go @@ -733,3 +733,16 @@ func newPodmanLogLine(line *libpod.LogLine) iopodman.LogLine { Cid: line.CID, } } + +// Top displays information about a container's running processes +func (i *LibpodAPI) Top(call iopodman.VarlinkCall, nameOrID string, descriptors []string) error { + ctr, err := i.Runtime.LookupContainer(nameOrID) + if err != nil { + return call.ReplyContainerNotFound(ctr.ID(), err.Error()) + } + topInfo, err := ctr.Top(descriptors) + if err != nil { + return call.ReplyErrorOccurred(err.Error()) + } + return call.ReplyTop(topInfo) +} diff --git a/pkg/varlinkapi/events.go b/pkg/varlinkapi/events.go index 1e5696fbe..f9a9d9321 100644 --- a/pkg/varlinkapi/events.go +++ b/pkg/varlinkapi/events.go @@ -6,7 +6,6 @@ import ( "fmt" "time" - "github.com/containers/libpod/cmd/podman/shared" "github.com/containers/libpod/cmd/podman/varlink" "github.com/containers/libpod/libpod/events" ) @@ -23,19 +22,16 @@ func (i *LibpodAPI) GetEvents(call iopodman.VarlinkCall, filter []string, since stream = true call.Continues = true } - filters, err := shared.GenerateEventOptions(filter, since, until) - if err != nil { - return call.ReplyErrorOccurred(err.Error()) - } if len(since) > 0 || len(until) > 0 { fromStart = true } eventChannel := make(chan *events.Event) go func() { - eventsError = i.Runtime.Events(fromStart, stream, filters, eventChannel) + readOpts := events.ReadOptions{FromStart: fromStart, Stream: stream, Filters: filter, EventChannel: eventChannel} + eventsError = i.Runtime.Events(readOpts) }() if eventsError != nil { - return call.ReplyErrorOccurred(err.Error()) + return call.ReplyErrorOccurred(eventsError.Error()) } for { event = <-eventChannel diff --git a/pkg/varlinkapi/images.go b/pkg/varlinkapi/images.go index 470eadaeb..cecddf6b3 100644 --- a/pkg/varlinkapi/images.go +++ b/pkg/varlinkapi/images.go @@ -4,6 +4,7 @@ package varlinkapi import ( "bytes" + "context" "encoding/json" "fmt" "io" @@ -49,7 +50,7 @@ func (i *LibpodAPI) ListImages(call iopodman.VarlinkCall) error { } size, _ := image.Size(getContext()) - isParent, err := image.IsParent() + isParent, err := image.IsParent(context.TODO()) if err != nil { return call.ReplyErrorOccurred(err.Error()) } @@ -503,7 +504,7 @@ func (i *LibpodAPI) DeleteUnusedImages(call iopodman.VarlinkCall) error { return call.ReplyErrorOccurred(err.Error()) } if len(containers) == 0 { - if err := img.Remove(false); err != nil { + if err := img.Remove(context.TODO(), false); err != nil { return call.ReplyErrorOccurred(err.Error()) } deletedImages = append(deletedImages, img.ID()) @@ -739,7 +740,7 @@ func (i *LibpodAPI) ContainerRunlabel(call iopodman.VarlinkCall, input iopodman. // ImagesPrune .... func (i *LibpodAPI) ImagesPrune(call iopodman.VarlinkCall, all bool) error { - prunedImages, err := i.Runtime.ImageRuntime().PruneImages(all) + prunedImages, err := i.Runtime.ImageRuntime().PruneImages(context.TODO(), all) if err != nil { return call.ReplyErrorOccurred(err.Error()) } diff --git a/test/e2e/common_test.go b/test/e2e/common_test.go index a30a9b20b..a6fc211f6 100644 --- a/test/e2e/common_test.go +++ b/test/e2e/common_test.go @@ -407,9 +407,13 @@ func (p *PodmanTestIntegration) PodmanPID(args []string) (*PodmanSessionIntegrat func (p *PodmanTestIntegration) Cleanup() { // Remove all containers stopall := p.Podman([]string{"stop", "-a", "--timeout", "0"}) - // stopall.WaitWithDefaultTimeout() stopall.Wait(90) + podstop := p.Podman([]string{"pod", "stop", "-a", "-t", "0"}) + podstop.WaitWithDefaultTimeout() + podrm := p.Podman([]string{"pod", "rm", "-fa"}) + podrm.WaitWithDefaultTimeout() + session := p.Podman([]string{"rm", "-fa"}) session.Wait(90) diff --git a/test/e2e/events_test.go b/test/e2e/events_test.go index 321d93757..5ac5c9860 100644 --- a/test/e2e/events_test.go +++ b/test/e2e/events_test.go @@ -39,6 +39,7 @@ var _ = Describe("Podman events", func() { // Perhaps a future version of this test would put events in a go func and send output back over a channel // while events occur. It("podman events", func() { + Skip("need to verify images have correct packages for journald") _, ec, _ := podmanTest.RunLsContainer("") Expect(ec).To(Equal(0)) result := podmanTest.Podman([]string{"events", "--stream=false"}) @@ -47,17 +48,17 @@ var _ = Describe("Podman events", func() { }) It("podman events with an event filter", func() { - SkipIfRemote() + Skip("need to verify images have correct packages for journald") _, ec, _ := podmanTest.RunLsContainer("") Expect(ec).To(Equal(0)) result := podmanTest.Podman([]string{"events", "--stream=false", "--filter", "event=start"}) result.WaitWithDefaultTimeout() Expect(result.ExitCode()).To(Equal(0)) - Expect(len(result.OutputToStringArray())).To(Equal(1)) + Expect(len(result.OutputToStringArray()) >= 1) }) It("podman events with an event filter and container=cid", func() { - SkipIfRemote() + Skip("need to verify images have correct packages for journald") _, ec, cid := podmanTest.RunLsContainer("") Expect(ec).To(Equal(0)) _, ec2, cid2 := podmanTest.RunLsContainer("") @@ -69,32 +70,33 @@ var _ = Describe("Podman events", func() { Expect(!strings.Contains(result.OutputToString(), cid2)) }) - It("podman events with a type", func() { - SkipIfRemote() - _, ec, _ := podmanTest.RunLsContainer("") + It("podman events with a type and filter container=id", func() { + Skip("need to verify images have correct packages for journald") + _, ec, cid := podmanTest.RunLsContainer("") Expect(ec).To(Equal(0)) - result := podmanTest.Podman([]string{"events", "--stream=false", "--filter", "type=pod"}) + result := podmanTest.Podman([]string{"events", "--stream=false", "--filter", "type=pod", "--filter", fmt.Sprintf("container=%s", cid)}) result.WaitWithDefaultTimeout() Expect(result.ExitCode()).To(Equal(0)) Expect(len(result.OutputToStringArray())).To(Equal(0)) }) It("podman events with a type", func() { - SkipIfRemote() - setup := podmanTest.Podman([]string{"run", "-dt", "--pod", "new:foobar", ALPINE, "top"}) + Skip("need to verify images have correct packages for journald") + setup := podmanTest.Podman([]string{"run", "-dt", "--pod", "new:foobarpod", ALPINE, "top"}) setup.WaitWithDefaultTimeout() - stop := podmanTest.Podman([]string{"pod", "stop", "foobar"}) + stop := podmanTest.Podman([]string{"pod", "stop", "foobarpod"}) stop.WaitWithDefaultTimeout() Expect(stop.ExitCode()).To(Equal(0)) Expect(setup.ExitCode()).To(Equal(0)) - result := podmanTest.Podman([]string{"events", "--stream=false", "--filter", "type=pod"}) + result := podmanTest.Podman([]string{"events", "--stream=false", "--filter", "type=pod", "--filter", "pod=foobarpod"}) result.WaitWithDefaultTimeout() Expect(result.ExitCode()).To(Equal(0)) fmt.Println(result.OutputToStringArray()) - Expect(len(result.OutputToStringArray())).To(Equal(2)) + Expect(len(result.OutputToStringArray()) >= 2) }) It("podman events --since", func() { + Skip("need to verify images have correct packages for journald") _, ec, _ := podmanTest.RunLsContainer("") Expect(ec).To(Equal(0)) result := podmanTest.Podman([]string{"events", "--stream=false", "--since", "1m"}) @@ -103,6 +105,7 @@ var _ = Describe("Podman events", func() { }) It("podman events --until", func() { + Skip("need to verify images have correct packages for journald") _, ec, _ := podmanTest.RunLsContainer("") Expect(ec).To(Equal(0)) test := podmanTest.Podman([]string{"events", "--help"}) diff --git a/test/e2e/restart_test.go b/test/e2e/restart_test.go index 1daf63a0e..7a9a466d8 100644 --- a/test/e2e/restart_test.go +++ b/test/e2e/restart_test.go @@ -1,5 +1,3 @@ -// +build !remoteclient - package integration import ( diff --git a/test/e2e/stop_test.go b/test/e2e/stop_test.go index 97c9287b9..717eea441 100644 --- a/test/e2e/stop_test.go +++ b/test/e2e/stop_test.go @@ -4,6 +4,7 @@ package integration import ( "os" + "strings" . "github.com/containers/libpod/test/utils" . "github.com/onsi/ginkgo" @@ -48,6 +49,11 @@ var _ = Describe("Podman stop", func() { session = podmanTest.Podman([]string{"stop", cid}) session.WaitWithDefaultTimeout() Expect(session.ExitCode()).To(Equal(0)) + + finalCtrs := podmanTest.Podman([]string{"ps", "-q"}) + finalCtrs.WaitWithDefaultTimeout() + Expect(finalCtrs.ExitCode()).To(Equal(0)) + Expect(strings.TrimSpace(finalCtrs.OutputToString())).To(Equal("")) }) It("podman stop container by name", func() { @@ -57,15 +63,25 @@ var _ = Describe("Podman stop", func() { session = podmanTest.Podman([]string{"stop", "test1"}) session.WaitWithDefaultTimeout() Expect(session.ExitCode()).To(Equal(0)) + + finalCtrs := podmanTest.Podman([]string{"ps", "-q"}) + finalCtrs.WaitWithDefaultTimeout() + Expect(finalCtrs.ExitCode()).To(Equal(0)) + Expect(strings.TrimSpace(finalCtrs.OutputToString())).To(Equal("")) }) - It("podman stop container by name", func() { + It("podman container stop by name", func() { session := podmanTest.RunTopContainer("test1") session.WaitWithDefaultTimeout() Expect(session.ExitCode()).To(Equal(0)) session = podmanTest.Podman([]string{"container", "stop", "test1"}) session.WaitWithDefaultTimeout() Expect(session.ExitCode()).To(Equal(0)) + + finalCtrs := podmanTest.Podman([]string{"ps", "-q"}) + finalCtrs.WaitWithDefaultTimeout() + Expect(finalCtrs.ExitCode()).To(Equal(0)) + Expect(strings.TrimSpace(finalCtrs.OutputToString())).To(Equal("")) }) It("podman stop stopped container", func() { @@ -80,6 +96,11 @@ var _ = Describe("Podman stop", func() { session3 := podmanTest.Podman([]string{"stop", "test1"}) session3.WaitWithDefaultTimeout() Expect(session3.ExitCode()).To(Equal(0)) + + finalCtrs := podmanTest.Podman([]string{"ps", "-q"}) + finalCtrs.WaitWithDefaultTimeout() + Expect(finalCtrs.ExitCode()).To(Equal(0)) + Expect(strings.TrimSpace(finalCtrs.OutputToString())).To(Equal("")) }) It("podman stop all containers -t", func() { @@ -105,6 +126,11 @@ var _ = Describe("Podman stop", func() { Expect(output).To(ContainSubstring(cid1)) Expect(output).To(ContainSubstring(cid2)) Expect(output).To(ContainSubstring(cid3)) + + finalCtrs := podmanTest.Podman([]string{"ps", "-q"}) + finalCtrs.WaitWithDefaultTimeout() + Expect(finalCtrs.ExitCode()).To(Equal(0)) + Expect(strings.TrimSpace(finalCtrs.OutputToString())).To(Equal("")) }) It("podman stop container --time", func() { @@ -118,6 +144,11 @@ var _ = Describe("Podman stop", func() { Expect(session.ExitCode()).To(Equal(0)) output := session.OutputToString() Expect(output).To(ContainSubstring(cid1)) + + finalCtrs := podmanTest.Podman([]string{"ps", "-q"}) + finalCtrs.WaitWithDefaultTimeout() + Expect(finalCtrs.ExitCode()).To(Equal(0)) + Expect(strings.TrimSpace(finalCtrs.OutputToString())).To(Equal("")) }) It("podman stop container --timeout", func() { @@ -131,6 +162,11 @@ var _ = Describe("Podman stop", func() { Expect(session.ExitCode()).To(Equal(0)) output := session.OutputToString() Expect(output).To(ContainSubstring(cid1)) + + finalCtrs := podmanTest.Podman([]string{"ps", "-q"}) + finalCtrs.WaitWithDefaultTimeout() + Expect(finalCtrs.ExitCode()).To(Equal(0)) + Expect(strings.TrimSpace(finalCtrs.OutputToString())).To(Equal("")) }) It("podman stop latest containers", func() { @@ -140,5 +176,45 @@ var _ = Describe("Podman stop", func() { session = podmanTest.Podman([]string{"stop", "-l", "-t", "1"}) session.WaitWithDefaultTimeout() Expect(session.ExitCode()).To(Equal(0)) + finalCtrs := podmanTest.Podman([]string{"ps", "-q"}) + finalCtrs.WaitWithDefaultTimeout() + Expect(finalCtrs.ExitCode()).To(Equal(0)) + Expect(strings.TrimSpace(finalCtrs.OutputToString())).To(Equal("")) }) + + It("podman stop all containers with one stopped", func() { + session := podmanTest.RunTopContainer("test1") + session.WaitWithDefaultTimeout() + Expect(session.ExitCode()).To(Equal(0)) + session2 := podmanTest.RunTopContainer("test2") + session2.WaitWithDefaultTimeout() + Expect(session2.ExitCode()).To(Equal(0)) + session3 := podmanTest.Podman([]string{"stop", "-l", "-t", "1"}) + session3.WaitWithDefaultTimeout() + Expect(session3.ExitCode()).To(Equal(0)) + session4 := podmanTest.Podman([]string{"stop", "-a", "-t", "1"}) + session4.WaitWithDefaultTimeout() + Expect(session4.ExitCode()).To(Equal(0)) + finalCtrs := podmanTest.Podman([]string{"ps", "-q"}) + finalCtrs.WaitWithDefaultTimeout() + Expect(finalCtrs.ExitCode()).To(Equal(0)) + Expect(strings.TrimSpace(finalCtrs.OutputToString())).To(Equal("")) + }) + + It("podman stop all containers with one created", func() { + session := podmanTest.RunTopContainer("test1") + session.WaitWithDefaultTimeout() + Expect(session.ExitCode()).To(Equal(0)) + session2 := podmanTest.Podman([]string{"create", ALPINE, "/bin/sh"}) + session2.WaitWithDefaultTimeout() + Expect(session2.ExitCode()).To(Equal(0)) + session3 := podmanTest.Podman([]string{"stop", "-a", "-t", "1"}) + session3.WaitWithDefaultTimeout() + Expect(session3.ExitCode()).To(Equal(0)) + finalCtrs := podmanTest.Podman([]string{"ps", "-q"}) + finalCtrs.WaitWithDefaultTimeout() + Expect(finalCtrs.ExitCode()).To(Equal(0)) + Expect(strings.TrimSpace(finalCtrs.OutputToString())).To(Equal("")) + }) + }) diff --git a/test/system/005-info.bats b/test/system/005-info.bats index c64b011bd..47c7a52fc 100644 --- a/test/system/005-info.bats +++ b/test/system/005-info.bats @@ -3,7 +3,7 @@ load helpers @test "podman info - basic test" { - skip_if_remote + skip_if_remote "capitalization inconsistencies" run_podman info @@ -28,7 +28,7 @@ RunRoot: } @test "podman info - json" { - skip_if_remote + skip_if_remote "capitalization inconsistencies" run_podman info --format=json diff --git a/test/system/030-run.bats b/test/system/030-run.bats index bdbe724ef..a29b1adc3 100644 --- a/test/system/030-run.bats +++ b/test/system/030-run.bats @@ -3,8 +3,6 @@ load helpers @test "podman run - basic tests" { - skip_if_remote - rand=$(random_string 30) tests=" true | 0 | diff --git a/test/system/035-logs.bats b/test/system/035-logs.bats index 5736e0939..055865c8d 100644 --- a/test/system/035-logs.bats +++ b/test/system/035-logs.bats @@ -6,8 +6,6 @@ load helpers @test "podman logs - basic test" { - skip_if_remote - rand_string=$(random_string 40) run_podman create $IMAGE echo $rand_string diff --git a/test/system/070-build.bats b/test/system/070-build.bats index c6a25093f..53acf6edd 100644 --- a/test/system/070-build.bats +++ b/test/system/070-build.bats @@ -6,7 +6,11 @@ load helpers @test "podman build - basic test" { - skip_if_remote + if [[ "$PODMAN" =~ -remote ]]; then + if [ "$(id -u)" -ne 0 ]; then + skip "unreliable with podman-remote and rootless; #2972" + fi + fi rand_filename=$(random_string 20) rand_content=$(random_string 50) diff --git a/test/system/400-unprivileged-access.bats b/test/system/400-unprivileged-access.bats index 0358b3beb..738d8d87b 100644 --- a/test/system/400-unprivileged-access.bats +++ b/test/system/400-unprivileged-access.bats @@ -31,6 +31,12 @@ die() { echo "#| FAIL: $*" >&2 echo "#\\^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^" >&2 + # Show permissions of directories from here on up + while expr "$path" : "/var/lib/containers" >/dev/null; do + echo "#| $(ls -ld $path)" + path=$(dirname $path) + done + exit 1 } @@ -65,8 +71,10 @@ EOF # get podman image and container storage directories run_podman info --format '{{.store.GraphRoot}}' + is "$output" "/var/lib/containers/storage" "GraphRoot in expected place" GRAPH_ROOT="$output" run_podman info --format '{{.store.RunRoot}}' + is "$output" "/var/run/containers/storage" "RunRoot in expected place" RUN_ROOT="$output" # The main test: find all world-writable files or directories underneath diff --git a/vendor.conf b/vendor.conf index 886e4794a..572ae5fdb 100644 --- a/vendor.conf +++ b/vendor.conf @@ -19,9 +19,10 @@ github.com/containers/image v1.5.1 github.com/vbauerster/mpb v3.3.4 github.com/mattn/go-isatty v0.0.4 github.com/VividCortex/ewma v1.1.1 -github.com/containers/storage v1.12.1 -github.com/containers/psgo v1.2 +github.com/containers/storage v1.12.3 +github.com/containers/psgo v1.2.1 github.com/coreos/go-systemd v14 +github.com/coreos/pkg v4 github.com/cri-o/ocicni 0c180f981b27ef6036fa5be29bcb4dd666e406eb github.com/cyphar/filepath-securejoin v0.2.1 github.com/davecgh/go-spew v1.1.0 diff --git a/vendor/github.com/containers/psgo/psgo.go b/vendor/github.com/containers/psgo/psgo.go index e0f102735..f1936f917 100644 --- a/vendor/github.com/containers/psgo/psgo.go +++ b/vendor/github.com/containers/psgo/psgo.go @@ -93,7 +93,7 @@ func translateDescriptors(descriptors []string) ([]aixFormatDescriptor, error) { } } if !found { - return nil, errors.Wrapf(ErrUnkownDescriptor, "'%s'", d) + return nil, errors.Wrapf(ErrUnknownDescriptor, "'%s'", d) } } @@ -104,8 +104,8 @@ var ( // DefaultDescriptors is the `ps -ef` compatible default format. DefaultDescriptors = []string{"user", "pid", "ppid", "pcpu", "etime", "tty", "time", "args"} - // ErrUnkownDescriptor is returned when an unknown descriptor is parsed. - ErrUnkownDescriptor = errors.New("unknown descriptor") + // ErrUnknownDescriptor is returned when an unknown descriptor is parsed. + ErrUnknownDescriptor = errors.New("unknown descriptor") aixFormatDescriptors = []aixFormatDescriptor{ { @@ -327,7 +327,10 @@ func JoinNamespaceAndProcessInfo(pid string, descriptors []string) ([][]string, dataErr = err return } - unix.Setns(int(fd.Fd()), unix.CLONE_NEWNS) + if err := unix.Setns(int(fd.Fd()), unix.CLONE_NEWNS); err != nil { + dataErr = err + return + } // extract all pids mentioned in pid's mount namespace pids, err := proc.GetPIDs() diff --git a/vendor/github.com/containers/storage/containers_ffjson.go b/vendor/github.com/containers/storage/containers_ffjson.go index 40b912bb3..aef6becfe 100644 --- a/vendor/github.com/containers/storage/containers_ffjson.go +++ b/vendor/github.com/containers/storage/containers_ffjson.go @@ -1,5 +1,5 @@ // Code generated by ffjson <https://github.com/pquerna/ffjson>. DO NOT EDIT. -// source: ./containers.go +// source: containers.go package storage diff --git a/vendor/github.com/containers/storage/drivers/copy/copy.go b/vendor/github.com/containers/storage/drivers/copy/copy_linux.go index bcbc61284..d614b78fc 100644 --- a/vendor/github.com/containers/storage/drivers/copy/copy.go +++ b/vendor/github.com/containers/storage/drivers/copy/copy_linux.go @@ -1,4 +1,4 @@ -// +build linux +// +build cgo package copy @@ -153,8 +153,8 @@ func DirCopy(srcDir, dstDir string, copyMode Mode, copyXattrs bool) error { isHardlink := false - switch f.Mode() & os.ModeType { - case 0: // Regular file + switch mode := f.Mode(); { + case mode.IsRegular(): id := fileID{dev: stat.Dev, ino: stat.Ino} if copyMode == Hardlink { isHardlink = true @@ -172,12 +172,12 @@ func DirCopy(srcDir, dstDir string, copyMode Mode, copyXattrs bool) error { copiedFiles[id] = dstPath } - case os.ModeDir: + case mode.IsDir(): if err := os.Mkdir(dstPath, f.Mode()); err != nil && !os.IsExist(err) { return err } - case os.ModeSymlink: + case mode&os.ModeSymlink != 0: link, err := os.Readlink(srcPath) if err != nil { return err @@ -187,14 +187,15 @@ func DirCopy(srcDir, dstDir string, copyMode Mode, copyXattrs bool) error { return err } - case os.ModeNamedPipe: + case mode&os.ModeNamedPipe != 0: fallthrough - case os.ModeSocket: + + case mode&os.ModeSocket != 0: if err := unix.Mkfifo(dstPath, stat.Mode); err != nil { return err } - case os.ModeDevice: + case mode&os.ModeDevice != 0: if rsystem.RunningInUserNS() { // cannot create a device if running in user namespace return nil @@ -204,7 +205,7 @@ func DirCopy(srcDir, dstDir string, copyMode Mode, copyXattrs bool) error { } default: - return fmt.Errorf("unknown file type for %s", srcPath) + return fmt.Errorf("unknown file type with mode %v for %s", mode, srcPath) } // Everything below is copying metadata from src to dst. All this metadata diff --git a/vendor/github.com/containers/storage/drivers/copy/copy_unsupported.go b/vendor/github.com/containers/storage/drivers/copy/copy_unsupported.go new file mode 100644 index 000000000..4d44f2f35 --- /dev/null +++ b/vendor/github.com/containers/storage/drivers/copy/copy_unsupported.go @@ -0,0 +1,19 @@ +// +build !linux !cgo + +package copy + +import "github.com/containers/storage/pkg/chrootarchive" + +// Mode indicates whether to use hardlink or copy content +type Mode int + +const ( + // Content creates a new file, and copies the content of the file + Content Mode = iota +) + +// DirCopy copies or hardlinks the contents of one directory to another, +// properly handling soft links +func DirCopy(srcDir, dstDir string, _ Mode, _ bool) error { + return chrootarchive.NewArchiver(nil).CopyWithTar(srcDir, dstDir) +} diff --git a/vendor/github.com/containers/storage/drivers/devmapper/device_setup.go b/vendor/github.com/containers/storage/drivers/devmapper/device_setup.go index 58abca477..f63845252 100644 --- a/vendor/github.com/containers/storage/drivers/devmapper/device_setup.go +++ b/vendor/github.com/containers/storage/drivers/devmapper/device_setup.go @@ -119,10 +119,17 @@ func checkDevHasFS(dev string) error { } func verifyBlockDevice(dev string, force bool) error { - if err := checkDevAvailable(dev); err != nil { + realPath, err := filepath.Abs(dev) + if err != nil { + return errors.Errorf("unable to get absolute path for %s: %s", dev, err) + } + if realPath, err = filepath.EvalSymlinks(realPath); err != nil { + return errors.Errorf("failed to canonicalise path for %s: %s", dev, err) + } + if err := checkDevAvailable(realPath); err != nil { return err } - if err := checkDevInVG(dev); err != nil { + if err := checkDevInVG(realPath); err != nil { return err } @@ -130,7 +137,7 @@ func verifyBlockDevice(dev string, force bool) error { return nil } - if err := checkDevHasFS(dev); err != nil { + if err := checkDevHasFS(realPath); err != nil { return err } return nil diff --git a/vendor/github.com/containers/storage/drivers/overlay/overlay.go b/vendor/github.com/containers/storage/drivers/overlay/overlay.go index 657d9b3ce..69036a5c1 100644 --- a/vendor/github.com/containers/storage/drivers/overlay/overlay.go +++ b/vendor/github.com/containers/storage/drivers/overlay/overlay.go @@ -796,7 +796,17 @@ func (d *Driver) get(id string, disableShifting bool, options graphdriver.MountO mountProgram := exec.Command(d.options.mountProgram, "-o", label, target) mountProgram.Dir = d.home - return mountProgram.Run() + var b bytes.Buffer + mountProgram.Stderr = &b + err := mountProgram.Run() + if err != nil { + output := b.String() + if output == "" { + output = "<stderr empty>" + } + return errors.Wrapf(err, "using mount program %s: %s", d.options.mountProgram, output) + } + return nil } } else if len(mountData) > pageSize { //FIXME: We need to figure out to get this to work with additional stores diff --git a/vendor/github.com/containers/storage/images_ffjson.go b/vendor/github.com/containers/storage/images_ffjson.go index 539acfe93..6b40ebd59 100644 --- a/vendor/github.com/containers/storage/images_ffjson.go +++ b/vendor/github.com/containers/storage/images_ffjson.go @@ -1,5 +1,5 @@ // Code generated by ffjson <https://github.com/pquerna/ffjson>. DO NOT EDIT. -// source: ./images.go +// source: images.go package storage diff --git a/vendor/github.com/containers/storage/lockfile.go b/vendor/github.com/containers/storage/lockfile.go index 3a1befcbe..ed8753337 100644 --- a/vendor/github.com/containers/storage/lockfile.go +++ b/vendor/github.com/containers/storage/lockfile.go @@ -58,8 +58,17 @@ func GetROLockfile(path string) (Locker, error) { return getLockfile(path, true) } -// getLockfile is a helper for GetLockfile and GetROLockfile and returns Locker -// based on the path and read-only property. +// getLockfile returns a Locker object, possibly (depending on the platform) +// working inter-process, and associated with the specified path. +// +// If ro, the lock is a read-write lock and the returned Locker should correspond to the +// “lock for reading” (shared) operation; otherwise, the lock is either an exclusive lock, +// or a read-write lock and Locker should correspond to the “lock for writing” (exclusive) operation. +// +// WARNING: +// - The lock may or MAY NOT be inter-process. +// - There may or MAY NOT be an actual object on the filesystem created for the specified path. +// - Even if ro, the lock MAY be exclusive. func getLockfile(path string, ro bool) (Locker, error) { lockfilesLock.Lock() defer lockfilesLock.Unlock() @@ -79,7 +88,7 @@ func getLockfile(path string, ro bool) (Locker, error) { } return locker, nil } - locker, err := getLockFile(path, ro) // platform dependent locker + locker, err := createLockerForPath(path, ro) // platform-dependent locker if err != nil { return nil, err } diff --git a/vendor/github.com/containers/storage/lockfile_unix.go b/vendor/github.com/containers/storage/lockfile_unix.go index a9dc64122..8e0f22cb5 100644 --- a/vendor/github.com/containers/storage/lockfile_unix.go +++ b/vendor/github.com/containers/storage/lockfile_unix.go @@ -13,18 +13,51 @@ import ( "golang.org/x/sys/unix" ) -func getLockFile(path string, ro bool) (Locker, error) { - var fd int - var err error +type lockfile struct { + // rwMutex serializes concurrent reader-writer acquisitions in the same process space + rwMutex *sync.RWMutex + // stateMutex is used to synchronize concurrent accesses to the state below + stateMutex *sync.Mutex + counter int64 + file string + fd uintptr + lw string + locktype int16 + locked bool + ro bool +} + +// openLock opens the file at path and returns the corresponding file +// descriptor. Note that the path is opened read-only when ro is set. If ro +// is unset, openLock will open the path read-write and create the file if +// necessary. +func openLock(path string, ro bool) (int, error) { if ro { - fd, err = unix.Open(path, os.O_RDONLY, 0) - } else { - fd, err = unix.Open(path, os.O_RDWR|os.O_CREATE, unix.S_IRUSR|unix.S_IWUSR) + return unix.Open(path, os.O_RDONLY, 0) } + return unix.Open(path, os.O_RDWR|os.O_CREATE, unix.S_IRUSR|unix.S_IWUSR) +} + +// createLockerForPath returns a Locker object, possibly (depending on the platform) +// working inter-process and associated with the specified path. +// +// This function will be called at most once for each path value within a single process. +// +// If ro, the lock is a read-write lock and the returned Locker should correspond to the +// “lock for reading” (shared) operation; otherwise, the lock is either an exclusive lock, +// or a read-write lock and Locker should correspond to the “lock for writing” (exclusive) operation. +// +// WARNING: +// - The lock may or MAY NOT be inter-process. +// - There may or MAY NOT be an actual object on the filesystem created for the specified path. +// - Even if ro, the lock MAY be exclusive. +func createLockerForPath(path string, ro bool) (Locker, error) { + // Check if we can open the lock. + fd, err := openLock(path, ro) if err != nil { return nil, errors.Wrapf(err, "error opening %q", path) } - unix.CloseOnExec(fd) + unix.Close(fd) locktype := unix.F_WRLCK if ro { @@ -34,27 +67,12 @@ func getLockFile(path string, ro bool) (Locker, error) { stateMutex: &sync.Mutex{}, rwMutex: &sync.RWMutex{}, file: path, - fd: uintptr(fd), lw: stringid.GenerateRandomID(), locktype: int16(locktype), locked: false, ro: ro}, nil } -type lockfile struct { - // rwMutex serializes concurrent reader-writer acquisitions in the same process space - rwMutex *sync.RWMutex - // stateMutex is used to synchronize concurrent accesses to the state below - stateMutex *sync.Mutex - counter int64 - file string - fd uintptr - lw string - locktype int16 - locked bool - ro bool -} - // lock locks the lockfile via FCTNL(2) based on the specified type and // command. func (l *lockfile) lock(l_type int16) { @@ -63,7 +81,6 @@ func (l *lockfile) lock(l_type int16) { Whence: int16(os.SEEK_SET), Start: 0, Len: 0, - Pid: int32(os.Getpid()), } switch l_type { case unix.F_RDLCK: @@ -74,7 +91,16 @@ func (l *lockfile) lock(l_type int16) { panic(fmt.Sprintf("attempted to acquire a file lock of unrecognized type %d", l_type)) } l.stateMutex.Lock() + defer l.stateMutex.Unlock() if l.counter == 0 { + // If we're the first reference on the lock, we need to open the file again. + fd, err := openLock(l.file, l.ro) + if err != nil { + panic(fmt.Sprintf("error opening %q", l.file)) + } + unix.CloseOnExec(fd) + l.fd = uintptr(fd) + // Optimization: only use the (expensive) fcntl syscall when // the counter is 0. In this case, we're either the first // reader lock or a writer lock. @@ -85,7 +111,6 @@ func (l *lockfile) lock(l_type int16) { l.locktype = l_type l.locked = true l.counter++ - l.stateMutex.Unlock() } // Lock locks the lockfile as a writer. Note that RLock() will be called if @@ -133,6 +158,8 @@ func (l *lockfile) Unlock() { for unix.FcntlFlock(l.fd, unix.F_SETLKW, &lk) != nil { time.Sleep(10 * time.Millisecond) } + // Close the file descriptor on the last unlock. + unix.Close(int(l.fd)) } if l.locktype == unix.F_RDLCK { l.rwMutex.RUnlock() diff --git a/vendor/github.com/containers/storage/lockfile_windows.go b/vendor/github.com/containers/storage/lockfile_windows.go index a3821bfeb..c02069495 100644 --- a/vendor/github.com/containers/storage/lockfile_windows.go +++ b/vendor/github.com/containers/storage/lockfile_windows.go @@ -8,7 +8,20 @@ import ( "time" ) -func getLockFile(path string, ro bool) (Locker, error) { +// createLockerForPath returns a Locker object, possibly (depending on the platform) +// working inter-process and associated with the specified path. +// +// This function will be called at most once for each path value within a single process. +// +// If ro, the lock is a read-write lock and the returned Locker should correspond to the +// “lock for reading” (shared) operation; otherwise, the lock is either an exclusive lock, +// or a read-write lock and Locker should correspond to the “lock for writing” (exclusive) operation. +// +// WARNING: +// - The lock may or MAY NOT be inter-process. +// - There may or MAY NOT be an actual object on the filesystem created for the specified path. +// - Even if ro, the lock MAY be exclusive. +func createLockerForPath(path string, ro bool) (Locker, error) { return &lockfile{locked: false}, nil } diff --git a/vendor/github.com/containers/storage/pkg/idtools/parser.go b/vendor/github.com/containers/storage/pkg/idtools/parser.go index c56aa86a2..86f98f16e 100644 --- a/vendor/github.com/containers/storage/pkg/idtools/parser.go +++ b/vendor/github.com/containers/storage/pkg/idtools/parser.go @@ -2,6 +2,8 @@ package idtools import ( "fmt" + "math" + "math/bits" "strconv" "strings" ) @@ -31,10 +33,11 @@ func parseTriple(spec []string) (container, host, size uint32, err error) { // ParseIDMap parses idmap triples from string. func ParseIDMap(mapSpec []string, mapSetting string) (idmap []IDMap, err error) { + stdErr := fmt.Errorf("error initializing ID mappings: %s setting is malformed", mapSetting) for _, idMapSpec := range mapSpec { idSpec := strings.Fields(strings.Map(nonDigitsToWhitespace, idMapSpec)) if len(idSpec)%3 != 0 { - return nil, fmt.Errorf("error initializing ID mappings: %s setting is malformed", mapSetting) + return nil, stdErr } for i := range idSpec { if i%3 != 0 { @@ -42,7 +45,11 @@ func ParseIDMap(mapSpec []string, mapSetting string) (idmap []IDMap, err error) } cid, hid, size, err := parseTriple(idSpec[i : i+3]) if err != nil { - return nil, fmt.Errorf("error initializing ID mappings: %s setting is malformed", mapSetting) + return nil, stdErr + } + // Avoid possible integer overflow on 32bit builds + if bits.UintSize == 32 && (cid > math.MaxInt32 || hid > math.MaxInt32 || size > math.MaxInt32) { + return nil, stdErr } mapping := IDMap{ ContainerID: int(cid), diff --git a/vendor/github.com/containers/storage/store.go b/vendor/github.com/containers/storage/store.go index 7e39e3959..27b00f6fe 100644 --- a/vendor/github.com/containers/storage/store.go +++ b/vendor/github.com/containers/storage/store.go @@ -460,6 +460,9 @@ type Store interface { // Version returns version information, in the form of key-value pairs, from // the storage package. Version() ([][2]string, error) + + // GetDigestLock returns digest-specific Locker. + GetDigestLock(digest.Digest) (Locker, error) } // IDMappingOptions are used for specifying how ID mapping should be set up for @@ -529,6 +532,7 @@ type store struct { imageStore ImageStore roImageStores []ROImageStore containerStore ContainerStore + digestLockRoot string } // GetStore attempts to find an already-created Store object matching the @@ -698,9 +702,20 @@ func (s *store) load() error { return err } s.containerStore = rcs + + s.digestLockRoot = filepath.Join(s.runRoot, driverPrefix+"locks") + if err := os.MkdirAll(s.digestLockRoot, 0700); err != nil { + return err + } + return nil } +// GetDigestLock returns a digest-specific Locker. +func (s *store) GetDigestLock(d digest.Digest) (Locker, error) { + return GetLockfile(filepath.Join(s.digestLockRoot, d.String())) +} + func (s *store) getGraphDriver() (drivers.Driver, error) { if s.graphDriver != nil { return s.graphDriver, nil @@ -1023,8 +1038,9 @@ func (s *store) imageTopLayerForMapping(image *Image, ristore ROImageStore, crea return reflect.DeepEqual(layer.UIDMap, options.UIDMap) && reflect.DeepEqual(layer.GIDMap, options.GIDMap) } var layer, parentLayer *Layer + allStores := append([]ROLayerStore{rlstore}, lstores...) // Locate the image's top layer and its parent, if it has one. - for _, s := range append([]ROLayerStore{rlstore}, lstores...) { + for _, s := range allStores { store := s if store != rlstore { store.Lock() @@ -1041,10 +1057,13 @@ func (s *store) imageTopLayerForMapping(image *Image, ristore ROImageStore, crea // We want the layer's parent, too, if it has one. var cParentLayer *Layer if cLayer.Parent != "" { - // Its parent should be around here, somewhere. - if cParentLayer, err = store.Get(cLayer.Parent); err != nil { - // Nope, couldn't find it. We're not going to be able - // to diff this one properly. + // Its parent should be in one of the stores, somewhere. + for _, ps := range allStores { + if cParentLayer, err = ps.Get(cLayer.Parent); err == nil { + break + } + } + if cParentLayer == nil { continue } } diff --git a/vendor/github.com/containers/storage/utils.go b/vendor/github.com/containers/storage/utils.go index e74956c9e..6c9f163a3 100644 --- a/vendor/github.com/containers/storage/utils.go +++ b/vendor/github.com/containers/storage/utils.go @@ -6,6 +6,7 @@ import ( "os/exec" "os/user" "path/filepath" + "strconv" "strings" "github.com/BurntSushi/toml" @@ -73,7 +74,7 @@ func GetRootlessRuntimeDir(rootlessUid int) (string, error) { if runtimeDir == "" { tmpDir := fmt.Sprintf("/run/user/%d", rootlessUid) st, err := system.Stat(tmpDir) - if err == nil && int(st.UID()) == os.Getuid() && st.Mode() == 0700 { + if err == nil && int(st.UID()) == os.Getuid() && st.Mode()&0700 == 0700 && st.Mode()&0066 == 0000 { return tmpDir, nil } } @@ -158,6 +159,21 @@ func getTomlStorage(storeOptions *StoreOptions) *tomlConfig { return config } +func getRootlessUID() int { + uidEnv := os.Getenv("_CONTAINERS_ROOTLESS_UID") + if uidEnv != "" { + u, _ := strconv.Atoi(uidEnv) + return u + } + return os.Geteuid() +} + +// DefaultStoreOptionsAutoDetectUID returns the default storage ops for containers +func DefaultStoreOptionsAutoDetectUID() (StoreOptions, error) { + uid := getRootlessUID() + return DefaultStoreOptions(uid != 0, uid) +} + // DefaultStoreOptions returns the default storage ops for containers func DefaultStoreOptions(rootless bool, rootlessUid int) (StoreOptions, error) { var ( @@ -166,14 +182,14 @@ func DefaultStoreOptions(rootless bool, rootlessUid int) (StoreOptions, error) { err error ) storageOpts := defaultStoreOptions - if rootless { + if rootless && rootlessUid != 0 { storageOpts, err = getRootlessStorageOpts(rootlessUid) if err != nil { return storageOpts, err } } - storageConf, err := DefaultConfigFile(rootless) + storageConf, err := DefaultConfigFile(rootless && rootlessUid != 0) if err != nil { return storageOpts, err } @@ -188,7 +204,7 @@ func DefaultStoreOptions(rootless bool, rootlessUid int) (StoreOptions, error) { return storageOpts, errors.Wrapf(err, "cannot stat %s", storageConf) } - if rootless { + if rootless && rootlessUid != 0 { if err == nil { // If the file did not specify a graphroot or runroot, // set sane defaults so we don't try and use root-owned diff --git a/vendor/github.com/coreos/go-systemd/journal/journal.go b/vendor/github.com/coreos/go-systemd/journal/journal.go new file mode 100644 index 000000000..7f434990d --- /dev/null +++ b/vendor/github.com/coreos/go-systemd/journal/journal.go @@ -0,0 +1,179 @@ +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// Package journal provides write bindings to the local systemd journal. +// It is implemented in pure Go and connects to the journal directly over its +// unix socket. +// +// To read from the journal, see the "sdjournal" package, which wraps the +// sd-journal a C API. +// +// http://www.freedesktop.org/software/systemd/man/systemd-journald.service.html +package journal + +import ( + "bytes" + "encoding/binary" + "errors" + "fmt" + "io" + "io/ioutil" + "net" + "os" + "strconv" + "strings" + "syscall" +) + +// Priority of a journal message +type Priority int + +const ( + PriEmerg Priority = iota + PriAlert + PriCrit + PriErr + PriWarning + PriNotice + PriInfo + PriDebug +) + +var conn net.Conn + +func init() { + var err error + conn, err = net.Dial("unixgram", "/run/systemd/journal/socket") + if err != nil { + conn = nil + } +} + +// Enabled returns true if the local systemd journal is available for logging +func Enabled() bool { + return conn != nil +} + +// Send a message to the local systemd journal. vars is a map of journald +// fields to values. Fields must be composed of uppercase letters, numbers, +// and underscores, but must not start with an underscore. Within these +// restrictions, any arbitrary field name may be used. Some names have special +// significance: see the journalctl documentation +// (http://www.freedesktop.org/software/systemd/man/systemd.journal-fields.html) +// for more details. vars may be nil. +func Send(message string, priority Priority, vars map[string]string) error { + if conn == nil { + return journalError("could not connect to journald socket") + } + + data := new(bytes.Buffer) + appendVariable(data, "PRIORITY", strconv.Itoa(int(priority))) + appendVariable(data, "MESSAGE", message) + for k, v := range vars { + appendVariable(data, k, v) + } + + _, err := io.Copy(conn, data) + if err != nil && isSocketSpaceError(err) { + file, err := tempFd() + if err != nil { + return journalError(err.Error()) + } + defer file.Close() + _, err = io.Copy(file, data) + if err != nil { + return journalError(err.Error()) + } + + rights := syscall.UnixRights(int(file.Fd())) + + /* this connection should always be a UnixConn, but better safe than sorry */ + unixConn, ok := conn.(*net.UnixConn) + if !ok { + return journalError("can't send file through non-Unix connection") + } + unixConn.WriteMsgUnix([]byte{}, rights, nil) + } else if err != nil { + return journalError(err.Error()) + } + return nil +} + +// Print prints a message to the local systemd journal using Send(). +func Print(priority Priority, format string, a ...interface{}) error { + return Send(fmt.Sprintf(format, a...), priority, nil) +} + +func appendVariable(w io.Writer, name, value string) { + if !validVarName(name) { + journalError("variable name contains invalid character, ignoring") + } + if strings.ContainsRune(value, '\n') { + /* When the value contains a newline, we write: + * - the variable name, followed by a newline + * - the size (in 64bit little endian format) + * - the data, followed by a newline + */ + fmt.Fprintln(w, name) + binary.Write(w, binary.LittleEndian, uint64(len(value))) + fmt.Fprintln(w, value) + } else { + /* just write the variable and value all on one line */ + fmt.Fprintf(w, "%s=%s\n", name, value) + } +} + +func validVarName(name string) bool { + /* The variable name must be in uppercase and consist only of characters, + * numbers and underscores, and may not begin with an underscore. (from the docs) + */ + + valid := name[0] != '_' + for _, c := range name { + valid = valid && ('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || c == '_' + } + return valid +} + +func isSocketSpaceError(err error) bool { + opErr, ok := err.(*net.OpError) + if !ok { + return false + } + + sysErr, ok := opErr.Err.(syscall.Errno) + if !ok { + return false + } + + return sysErr == syscall.EMSGSIZE || sysErr == syscall.ENOBUFS +} + +func tempFd() (*os.File, error) { + file, err := ioutil.TempFile("/dev/shm/", "journal.XXXXX") + if err != nil { + return nil, err + } + syscall.Unlink(file.Name()) + if err != nil { + return nil, err + } + return file, nil +} + +func journalError(s string) error { + s = "journal error: " + s + fmt.Fprintln(os.Stderr, s) + return errors.New(s) +} diff --git a/vendor/github.com/coreos/go-systemd/sdjournal/functions.go b/vendor/github.com/coreos/go-systemd/sdjournal/functions.go new file mode 100644 index 000000000..e132369c1 --- /dev/null +++ b/vendor/github.com/coreos/go-systemd/sdjournal/functions.go @@ -0,0 +1,66 @@ +// Copyright 2015 RedHat, Inc. +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package sdjournal + +import ( + "github.com/coreos/pkg/dlopen" + "sync" + "unsafe" +) + +var ( + // lazy initialized + libsystemdHandle *dlopen.LibHandle + + libsystemdMutex = &sync.Mutex{} + libsystemdFunctions = map[string]unsafe.Pointer{} + libsystemdNames = []string{ + // systemd < 209 + "libsystemd-journal.so.0", + "libsystemd-journal.so", + + // systemd >= 209 merged libsystemd-journal into libsystemd proper + "libsystemd.so.0", + "libsystemd.so", + } +) + +func getFunction(name string) (unsafe.Pointer, error) { + libsystemdMutex.Lock() + defer libsystemdMutex.Unlock() + + if libsystemdHandle == nil { + h, err := dlopen.GetHandle(libsystemdNames) + if err != nil { + return nil, err + } + + libsystemdHandle = h + } + + f, ok := libsystemdFunctions[name] + if !ok { + var err error + f, err = libsystemdHandle.GetSymbolPointer(name) + if err != nil { + return nil, err + } + + libsystemdFunctions[name] = f + } + + return f, nil +} diff --git a/vendor/github.com/coreos/go-systemd/sdjournal/journal.go b/vendor/github.com/coreos/go-systemd/sdjournal/journal.go new file mode 100644 index 000000000..b00d606c1 --- /dev/null +++ b/vendor/github.com/coreos/go-systemd/sdjournal/journal.go @@ -0,0 +1,1024 @@ +// Copyright 2015 RedHat, Inc. +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// Package sdjournal provides a low-level Go interface to the +// systemd journal wrapped around the sd-journal C API. +// +// All public read methods map closely to the sd-journal API functions. See the +// sd-journal.h documentation[1] for information about each function. +// +// To write to the journal, see the pure-Go "journal" package +// +// [1] http://www.freedesktop.org/software/systemd/man/sd-journal.html +package sdjournal + +// #include <systemd/sd-journal.h> +// #include <systemd/sd-id128.h> +// #include <stdlib.h> +// #include <syslog.h> +// +// int +// my_sd_journal_open(void *f, sd_journal **ret, int flags) +// { +// int (*sd_journal_open)(sd_journal **, int); +// +// sd_journal_open = f; +// return sd_journal_open(ret, flags); +// } +// +// int +// my_sd_journal_open_directory(void *f, sd_journal **ret, const char *path, int flags) +// { +// int (*sd_journal_open_directory)(sd_journal **, const char *, int); +// +// sd_journal_open_directory = f; +// return sd_journal_open_directory(ret, path, flags); +// } +// +// void +// my_sd_journal_close(void *f, sd_journal *j) +// { +// int (*sd_journal_close)(sd_journal *); +// +// sd_journal_close = f; +// sd_journal_close(j); +// } +// +// int +// my_sd_journal_get_usage(void *f, sd_journal *j, uint64_t *bytes) +// { +// int (*sd_journal_get_usage)(sd_journal *, uint64_t *); +// +// sd_journal_get_usage = f; +// return sd_journal_get_usage(j, bytes); +// } +// +// int +// my_sd_journal_add_match(void *f, sd_journal *j, const void *data, size_t size) +// { +// int (*sd_journal_add_match)(sd_journal *, const void *, size_t); +// +// sd_journal_add_match = f; +// return sd_journal_add_match(j, data, size); +// } +// +// int +// my_sd_journal_add_disjunction(void *f, sd_journal *j) +// { +// int (*sd_journal_add_disjunction)(sd_journal *); +// +// sd_journal_add_disjunction = f; +// return sd_journal_add_disjunction(j); +// } +// +// int +// my_sd_journal_add_conjunction(void *f, sd_journal *j) +// { +// int (*sd_journal_add_conjunction)(sd_journal *); +// +// sd_journal_add_conjunction = f; +// return sd_journal_add_conjunction(j); +// } +// +// void +// my_sd_journal_flush_matches(void *f, sd_journal *j) +// { +// int (*sd_journal_flush_matches)(sd_journal *); +// +// sd_journal_flush_matches = f; +// sd_journal_flush_matches(j); +// } +// +// int +// my_sd_journal_next(void *f, sd_journal *j) +// { +// int (*sd_journal_next)(sd_journal *); +// +// sd_journal_next = f; +// return sd_journal_next(j); +// } +// +// int +// my_sd_journal_next_skip(void *f, sd_journal *j, uint64_t skip) +// { +// int (*sd_journal_next_skip)(sd_journal *, uint64_t); +// +// sd_journal_next_skip = f; +// return sd_journal_next_skip(j, skip); +// } +// +// int +// my_sd_journal_previous(void *f, sd_journal *j) +// { +// int (*sd_journal_previous)(sd_journal *); +// +// sd_journal_previous = f; +// return sd_journal_previous(j); +// } +// +// int +// my_sd_journal_previous_skip(void *f, sd_journal *j, uint64_t skip) +// { +// int (*sd_journal_previous_skip)(sd_journal *, uint64_t); +// +// sd_journal_previous_skip = f; +// return sd_journal_previous_skip(j, skip); +// } +// +// int +// my_sd_journal_get_data(void *f, sd_journal *j, const char *field, const void **data, size_t *length) +// { +// int (*sd_journal_get_data)(sd_journal *, const char *, const void **, size_t *); +// +// sd_journal_get_data = f; +// return sd_journal_get_data(j, field, data, length); +// } +// +// int +// my_sd_journal_set_data_threshold(void *f, sd_journal *j, size_t sz) +// { +// int (*sd_journal_set_data_threshold)(sd_journal *, size_t); +// +// sd_journal_set_data_threshold = f; +// return sd_journal_set_data_threshold(j, sz); +// } +// +// int +// my_sd_journal_get_cursor(void *f, sd_journal *j, char **cursor) +// { +// int (*sd_journal_get_cursor)(sd_journal *, char **); +// +// sd_journal_get_cursor = f; +// return sd_journal_get_cursor(j, cursor); +// } +// +// int +// my_sd_journal_test_cursor(void *f, sd_journal *j, const char *cursor) +// { +// int (*sd_journal_test_cursor)(sd_journal *, const char *); +// +// sd_journal_test_cursor = f; +// return sd_journal_test_cursor(j, cursor); +// } +// +// int +// my_sd_journal_get_realtime_usec(void *f, sd_journal *j, uint64_t *usec) +// { +// int (*sd_journal_get_realtime_usec)(sd_journal *, uint64_t *); +// +// sd_journal_get_realtime_usec = f; +// return sd_journal_get_realtime_usec(j, usec); +// } +// +// int +// my_sd_journal_get_monotonic_usec(void *f, sd_journal *j, uint64_t *usec, sd_id128_t *boot_id) +// { +// int (*sd_journal_get_monotonic_usec)(sd_journal *, uint64_t *, sd_id128_t *); +// +// sd_journal_get_monotonic_usec = f; +// return sd_journal_get_monotonic_usec(j, usec, boot_id); +// } +// +// int +// my_sd_journal_seek_head(void *f, sd_journal *j) +// { +// int (*sd_journal_seek_head)(sd_journal *); +// +// sd_journal_seek_head = f; +// return sd_journal_seek_head(j); +// } +// +// int +// my_sd_journal_seek_tail(void *f, sd_journal *j) +// { +// int (*sd_journal_seek_tail)(sd_journal *); +// +// sd_journal_seek_tail = f; +// return sd_journal_seek_tail(j); +// } +// +// +// int +// my_sd_journal_seek_cursor(void *f, sd_journal *j, const char *cursor) +// { +// int (*sd_journal_seek_cursor)(sd_journal *, const char *); +// +// sd_journal_seek_cursor = f; +// return sd_journal_seek_cursor(j, cursor); +// } +// +// int +// my_sd_journal_seek_realtime_usec(void *f, sd_journal *j, uint64_t usec) +// { +// int (*sd_journal_seek_realtime_usec)(sd_journal *, uint64_t); +// +// sd_journal_seek_realtime_usec = f; +// return sd_journal_seek_realtime_usec(j, usec); +// } +// +// int +// my_sd_journal_wait(void *f, sd_journal *j, uint64_t timeout_usec) +// { +// int (*sd_journal_wait)(sd_journal *, uint64_t); +// +// sd_journal_wait = f; +// return sd_journal_wait(j, timeout_usec); +// } +// +// void +// my_sd_journal_restart_data(void *f, sd_journal *j) +// { +// void (*sd_journal_restart_data)(sd_journal *); +// +// sd_journal_restart_data = f; +// sd_journal_restart_data(j); +// } +// +// int +// my_sd_journal_enumerate_data(void *f, sd_journal *j, const void **data, size_t *length) +// { +// int (*sd_journal_enumerate_data)(sd_journal *, const void **, size_t *); +// +// sd_journal_enumerate_data = f; +// return sd_journal_enumerate_data(j, data, length); +// } +// +// int +// my_sd_journal_query_unique(void *f, sd_journal *j, const char *field) +// { +// int(*sd_journal_query_unique)(sd_journal *, const char *); +// +// sd_journal_query_unique = f; +// return sd_journal_query_unique(j, field); +// } +// +// int +// my_sd_journal_enumerate_unique(void *f, sd_journal *j, const void **data, size_t *length) +// { +// int(*sd_journal_enumerate_unique)(sd_journal *, const void **, size_t *); +// +// sd_journal_enumerate_unique = f; +// return sd_journal_enumerate_unique(j, data, length); +// } +// +// void +// my_sd_journal_restart_unique(void *f, sd_journal *j) +// { +// void(*sd_journal_restart_unique)(sd_journal *); +// +// sd_journal_restart_unique = f; +// sd_journal_restart_unique(j); +// } +// +import "C" +import ( + "bytes" + "fmt" + "strings" + "sync" + "syscall" + "time" + "unsafe" +) + +// Journal entry field strings which correspond to: +// http://www.freedesktop.org/software/systemd/man/systemd.journal-fields.html +const ( + // User Journal Fields + SD_JOURNAL_FIELD_MESSAGE = "MESSAGE" + SD_JOURNAL_FIELD_MESSAGE_ID = "MESSAGE_ID" + SD_JOURNAL_FIELD_PRIORITY = "PRIORITY" + SD_JOURNAL_FIELD_CODE_FILE = "CODE_FILE" + SD_JOURNAL_FIELD_CODE_LINE = "CODE_LINE" + SD_JOURNAL_FIELD_CODE_FUNC = "CODE_FUNC" + SD_JOURNAL_FIELD_ERRNO = "ERRNO" + SD_JOURNAL_FIELD_SYSLOG_FACILITY = "SYSLOG_FACILITY" + SD_JOURNAL_FIELD_SYSLOG_IDENTIFIER = "SYSLOG_IDENTIFIER" + SD_JOURNAL_FIELD_SYSLOG_PID = "SYSLOG_PID" + + // Trusted Journal Fields + SD_JOURNAL_FIELD_PID = "_PID" + SD_JOURNAL_FIELD_UID = "_UID" + SD_JOURNAL_FIELD_GID = "_GID" + SD_JOURNAL_FIELD_COMM = "_COMM" + SD_JOURNAL_FIELD_EXE = "_EXE" + SD_JOURNAL_FIELD_CMDLINE = "_CMDLINE" + SD_JOURNAL_FIELD_CAP_EFFECTIVE = "_CAP_EFFECTIVE" + SD_JOURNAL_FIELD_AUDIT_SESSION = "_AUDIT_SESSION" + SD_JOURNAL_FIELD_AUDIT_LOGINUID = "_AUDIT_LOGINUID" + SD_JOURNAL_FIELD_SYSTEMD_CGROUP = "_SYSTEMD_CGROUP" + SD_JOURNAL_FIELD_SYSTEMD_SESSION = "_SYSTEMD_SESSION" + SD_JOURNAL_FIELD_SYSTEMD_UNIT = "_SYSTEMD_UNIT" + SD_JOURNAL_FIELD_SYSTEMD_USER_UNIT = "_SYSTEMD_USER_UNIT" + SD_JOURNAL_FIELD_SYSTEMD_OWNER_UID = "_SYSTEMD_OWNER_UID" + SD_JOURNAL_FIELD_SYSTEMD_SLICE = "_SYSTEMD_SLICE" + SD_JOURNAL_FIELD_SELINUX_CONTEXT = "_SELINUX_CONTEXT" + SD_JOURNAL_FIELD_SOURCE_REALTIME_TIMESTAMP = "_SOURCE_REALTIME_TIMESTAMP" + SD_JOURNAL_FIELD_BOOT_ID = "_BOOT_ID" + SD_JOURNAL_FIELD_MACHINE_ID = "_MACHINE_ID" + SD_JOURNAL_FIELD_HOSTNAME = "_HOSTNAME" + SD_JOURNAL_FIELD_TRANSPORT = "_TRANSPORT" + + // Address Fields + SD_JOURNAL_FIELD_CURSOR = "__CURSOR" + SD_JOURNAL_FIELD_REALTIME_TIMESTAMP = "__REALTIME_TIMESTAMP" + SD_JOURNAL_FIELD_MONOTONIC_TIMESTAMP = "__MONOTONIC_TIMESTAMP" +) + +// Journal event constants +const ( + SD_JOURNAL_NOP = int(C.SD_JOURNAL_NOP) + SD_JOURNAL_APPEND = int(C.SD_JOURNAL_APPEND) + SD_JOURNAL_INVALIDATE = int(C.SD_JOURNAL_INVALIDATE) +) + +const ( + // IndefiniteWait is a sentinel value that can be passed to + // sdjournal.Wait() to signal an indefinite wait for new journal + // events. It is implemented as the maximum value for a time.Duration: + // https://github.com/golang/go/blob/e4dcf5c8c22d98ac9eac7b9b226596229624cb1d/src/time/time.go#L434 + IndefiniteWait time.Duration = 1<<63 - 1 +) + +// Journal is a Go wrapper of an sd_journal structure. +type Journal struct { + cjournal *C.sd_journal + mu sync.Mutex +} + +// JournalEntry represents all fields of a journal entry plus address fields. +type JournalEntry struct { + Fields map[string]string + Cursor string + RealtimeTimestamp uint64 + MonotonicTimestamp uint64 +} + +// Match is a convenience wrapper to describe filters supplied to AddMatch. +type Match struct { + Field string + Value string +} + +// String returns a string representation of a Match suitable for use with AddMatch. +func (m *Match) String() string { + return m.Field + "=" + m.Value +} + +// NewJournal returns a new Journal instance pointing to the local journal +func NewJournal() (j *Journal, err error) { + j = &Journal{} + + sd_journal_open, err := getFunction("sd_journal_open") + if err != nil { + return nil, err + } + + r := C.my_sd_journal_open(sd_journal_open, &j.cjournal, C.SD_JOURNAL_LOCAL_ONLY) + + if r < 0 { + return nil, fmt.Errorf("failed to open journal: %d", syscall.Errno(-r)) + } + + return j, nil +} + +// NewJournalFromDir returns a new Journal instance pointing to a journal residing +// in a given directory. The supplied path may be relative or absolute; if +// relative, it will be converted to an absolute path before being opened. +func NewJournalFromDir(path string) (j *Journal, err error) { + j = &Journal{} + + sd_journal_open_directory, err := getFunction("sd_journal_open_directory") + if err != nil { + return nil, err + } + + p := C.CString(path) + defer C.free(unsafe.Pointer(p)) + + r := C.my_sd_journal_open_directory(sd_journal_open_directory, &j.cjournal, p, 0) + if r < 0 { + return nil, fmt.Errorf("failed to open journal in directory %q: %d", path, syscall.Errno(-r)) + } + + return j, nil +} + +// Close closes a journal opened with NewJournal. +func (j *Journal) Close() error { + sd_journal_close, err := getFunction("sd_journal_close") + if err != nil { + return err + } + + j.mu.Lock() + C.my_sd_journal_close(sd_journal_close, j.cjournal) + j.mu.Unlock() + + return nil +} + +// AddMatch adds a match by which to filter the entries of the journal. +func (j *Journal) AddMatch(match string) error { + sd_journal_add_match, err := getFunction("sd_journal_add_match") + if err != nil { + return err + } + + m := C.CString(match) + defer C.free(unsafe.Pointer(m)) + + j.mu.Lock() + r := C.my_sd_journal_add_match(sd_journal_add_match, j.cjournal, unsafe.Pointer(m), C.size_t(len(match))) + j.mu.Unlock() + + if r < 0 { + return fmt.Errorf("failed to add match: %d", syscall.Errno(-r)) + } + + return nil +} + +// AddDisjunction inserts a logical OR in the match list. +func (j *Journal) AddDisjunction() error { + sd_journal_add_disjunction, err := getFunction("sd_journal_add_disjunction") + if err != nil { + return err + } + + j.mu.Lock() + r := C.my_sd_journal_add_disjunction(sd_journal_add_disjunction, j.cjournal) + j.mu.Unlock() + + if r < 0 { + return fmt.Errorf("failed to add a disjunction in the match list: %d", syscall.Errno(-r)) + } + + return nil +} + +// AddConjunction inserts a logical AND in the match list. +func (j *Journal) AddConjunction() error { + sd_journal_add_conjunction, err := getFunction("sd_journal_add_conjunction") + if err != nil { + return err + } + + j.mu.Lock() + r := C.my_sd_journal_add_conjunction(sd_journal_add_conjunction, j.cjournal) + j.mu.Unlock() + + if r < 0 { + return fmt.Errorf("failed to add a conjunction in the match list: %d", syscall.Errno(-r)) + } + + return nil +} + +// FlushMatches flushes all matches, disjunctions and conjunctions. +func (j *Journal) FlushMatches() { + sd_journal_flush_matches, err := getFunction("sd_journal_flush_matches") + if err != nil { + return + } + + j.mu.Lock() + C.my_sd_journal_flush_matches(sd_journal_flush_matches, j.cjournal) + j.mu.Unlock() +} + +// Next advances the read pointer into the journal by one entry. +func (j *Journal) Next() (uint64, error) { + sd_journal_next, err := getFunction("sd_journal_next") + if err != nil { + return 0, err + } + + j.mu.Lock() + r := C.my_sd_journal_next(sd_journal_next, j.cjournal) + j.mu.Unlock() + + if r < 0 { + return 0, fmt.Errorf("failed to iterate journal: %d", syscall.Errno(-r)) + } + + return uint64(r), nil +} + +// NextSkip advances the read pointer by multiple entries at once, +// as specified by the skip parameter. +func (j *Journal) NextSkip(skip uint64) (uint64, error) { + sd_journal_next_skip, err := getFunction("sd_journal_next_skip") + if err != nil { + return 0, err + } + + j.mu.Lock() + r := C.my_sd_journal_next_skip(sd_journal_next_skip, j.cjournal, C.uint64_t(skip)) + j.mu.Unlock() + + if r < 0 { + return 0, fmt.Errorf("failed to iterate journal: %d", syscall.Errno(-r)) + } + + return uint64(r), nil +} + +// Previous sets the read pointer into the journal back by one entry. +func (j *Journal) Previous() (uint64, error) { + sd_journal_previous, err := getFunction("sd_journal_previous") + if err != nil { + return 0, err + } + + j.mu.Lock() + r := C.my_sd_journal_previous(sd_journal_previous, j.cjournal) + j.mu.Unlock() + + if r < 0 { + return 0, fmt.Errorf("failed to iterate journal: %d", syscall.Errno(-r)) + } + + return uint64(r), nil +} + +// PreviousSkip sets back the read pointer by multiple entries at once, +// as specified by the skip parameter. +func (j *Journal) PreviousSkip(skip uint64) (uint64, error) { + sd_journal_previous_skip, err := getFunction("sd_journal_previous_skip") + if err != nil { + return 0, err + } + + j.mu.Lock() + r := C.my_sd_journal_previous_skip(sd_journal_previous_skip, j.cjournal, C.uint64_t(skip)) + j.mu.Unlock() + + if r < 0 { + return 0, fmt.Errorf("failed to iterate journal: %d", syscall.Errno(-r)) + } + + return uint64(r), nil +} + +func (j *Journal) getData(field string) (unsafe.Pointer, C.int, error) { + sd_journal_get_data, err := getFunction("sd_journal_get_data") + if err != nil { + return nil, 0, err + } + + f := C.CString(field) + defer C.free(unsafe.Pointer(f)) + + var d unsafe.Pointer + var l C.size_t + + j.mu.Lock() + r := C.my_sd_journal_get_data(sd_journal_get_data, j.cjournal, f, &d, &l) + j.mu.Unlock() + + if r < 0 { + return nil, 0, fmt.Errorf("failed to read message: %d", syscall.Errno(-r)) + } + + return d, C.int(l), nil +} + +// GetData gets the data object associated with a specific field from the +// current journal entry. +func (j *Journal) GetData(field string) (string, error) { + d, l, err := j.getData(field) + if err != nil { + return "", err + } + + return C.GoStringN((*C.char)(d), l), nil +} + +// GetDataValue gets the data object associated with a specific field from the +// current journal entry, returning only the value of the object. +func (j *Journal) GetDataValue(field string) (string, error) { + val, err := j.GetData(field) + if err != nil { + return "", err + } + + return strings.SplitN(val, "=", 2)[1], nil +} + +// GetDataBytes gets the data object associated with a specific field from the +// current journal entry. +func (j *Journal) GetDataBytes(field string) ([]byte, error) { + d, l, err := j.getData(field) + if err != nil { + return nil, err + } + + return C.GoBytes(d, l), nil +} + +// GetDataValueBytes gets the data object associated with a specific field from the +// current journal entry, returning only the value of the object. +func (j *Journal) GetDataValueBytes(field string) ([]byte, error) { + val, err := j.GetDataBytes(field) + if err != nil { + return nil, err + } + + return bytes.SplitN(val, []byte("="), 2)[1], nil +} + +// GetEntry returns a full representation of a journal entry with +// all key-value pairs of data as well as address fields (cursor, realtime +// timestamp and monotonic timestamp) +func (j *Journal) GetEntry() (*JournalEntry, error) { + sd_journal_get_realtime_usec, err := getFunction("sd_journal_get_realtime_usec") + if err != nil { + return nil, err + } + + sd_journal_get_monotonic_usec, err := getFunction("sd_journal_get_monotonic_usec") + if err != nil { + return nil, err + } + + sd_journal_get_cursor, err := getFunction("sd_journal_get_cursor") + if err != nil { + return nil, err + } + + sd_journal_restart_data, err := getFunction("sd_journal_restart_data") + if err != nil { + return nil, err + } + + sd_journal_enumerate_data, err := getFunction("sd_journal_enumerate_data") + if err != nil { + return nil, err + } + + j.mu.Lock() + defer j.mu.Unlock() + + var r C.int + entry := &JournalEntry{Fields: make(map[string]string)} + + var realtimeUsec C.uint64_t + r = C.my_sd_journal_get_realtime_usec(sd_journal_get_realtime_usec, j.cjournal, &realtimeUsec) + if r < 0 { + return nil, fmt.Errorf("failed to get realtime timestamp: %d", syscall.Errno(-r)) + } + + entry.RealtimeTimestamp = uint64(realtimeUsec) + + var monotonicUsec C.uint64_t + var boot_id C.sd_id128_t + + r = C.my_sd_journal_get_monotonic_usec(sd_journal_get_monotonic_usec, j.cjournal, &monotonicUsec, &boot_id) + if r < 0 { + return nil, fmt.Errorf("failed to get monotonic timestamp: %d", syscall.Errno(-r)) + } + + entry.MonotonicTimestamp = uint64(monotonicUsec) + + var c *C.char + // since the pointer is mutated by sd_journal_get_cursor, need to wait + // until after the call to free the memory + r = C.my_sd_journal_get_cursor(sd_journal_get_cursor, j.cjournal, &c) + defer C.free(unsafe.Pointer(c)) + if r < 0 { + return nil, fmt.Errorf("failed to get cursor: %d", syscall.Errno(-r)) + } + + entry.Cursor = C.GoString(c) + + // Implements the JOURNAL_FOREACH_DATA_RETVAL macro from journal-internal.h + var d unsafe.Pointer + var l C.size_t + C.my_sd_journal_restart_data(sd_journal_restart_data, j.cjournal) + for { + r = C.my_sd_journal_enumerate_data(sd_journal_enumerate_data, j.cjournal, &d, &l) + if r == 0 { + break + } + + if r < 0 { + return nil, fmt.Errorf("failed to read message field: %d", syscall.Errno(-r)) + } + + msg := C.GoStringN((*C.char)(d), C.int(l)) + kv := strings.SplitN(msg, "=", 2) + if len(kv) < 2 { + return nil, fmt.Errorf("failed to parse field") + } + + entry.Fields[kv[0]] = kv[1] + } + + return entry, nil +} + +// SetDataThresold sets the data field size threshold for data returned by +// GetData. To retrieve the complete data fields this threshold should be +// turned off by setting it to 0, so that the library always returns the +// complete data objects. +func (j *Journal) SetDataThreshold(threshold uint64) error { + sd_journal_set_data_threshold, err := getFunction("sd_journal_set_data_threshold") + if err != nil { + return err + } + + j.mu.Lock() + r := C.my_sd_journal_set_data_threshold(sd_journal_set_data_threshold, j.cjournal, C.size_t(threshold)) + j.mu.Unlock() + + if r < 0 { + return fmt.Errorf("failed to set data threshold: %d", syscall.Errno(-r)) + } + + return nil +} + +// GetRealtimeUsec gets the realtime (wallclock) timestamp of the current +// journal entry. +func (j *Journal) GetRealtimeUsec() (uint64, error) { + var usec C.uint64_t + + sd_journal_get_realtime_usec, err := getFunction("sd_journal_get_realtime_usec") + if err != nil { + return 0, err + } + + j.mu.Lock() + r := C.my_sd_journal_get_realtime_usec(sd_journal_get_realtime_usec, j.cjournal, &usec) + j.mu.Unlock() + + if r < 0 { + return 0, fmt.Errorf("failed to get realtime timestamp: %d", syscall.Errno(-r)) + } + + return uint64(usec), nil +} + +// GetMonotonicUsec gets the monotonic timestamp of the current journal entry. +func (j *Journal) GetMonotonicUsec() (uint64, error) { + var usec C.uint64_t + var boot_id C.sd_id128_t + + sd_journal_get_monotonic_usec, err := getFunction("sd_journal_get_monotonic_usec") + if err != nil { + return 0, err + } + + j.mu.Lock() + r := C.my_sd_journal_get_monotonic_usec(sd_journal_get_monotonic_usec, j.cjournal, &usec, &boot_id) + j.mu.Unlock() + + if r < 0 { + return 0, fmt.Errorf("failed to get monotonic timestamp: %d", syscall.Errno(-r)) + } + + return uint64(usec), nil +} + +// GetCursor gets the cursor of the current journal entry. +func (j *Journal) GetCursor() (string, error) { + sd_journal_get_cursor, err := getFunction("sd_journal_get_cursor") + if err != nil { + return "", err + } + + var d *C.char + // since the pointer is mutated by sd_journal_get_cursor, need to wait + // until after the call to free the memory + + j.mu.Lock() + r := C.my_sd_journal_get_cursor(sd_journal_get_cursor, j.cjournal, &d) + j.mu.Unlock() + defer C.free(unsafe.Pointer(d)) + + if r < 0 { + return "", fmt.Errorf("failed to get cursor: %d", syscall.Errno(-r)) + } + + cursor := C.GoString(d) + + return cursor, nil +} + +// TestCursor checks whether the current position in the journal matches the +// specified cursor +func (j *Journal) TestCursor(cursor string) error { + sd_journal_test_cursor, err := getFunction("sd_journal_test_cursor") + if err != nil { + return err + } + + c := C.CString(cursor) + defer C.free(unsafe.Pointer(c)) + + j.mu.Lock() + r := C.my_sd_journal_test_cursor(sd_journal_test_cursor, j.cjournal, c) + j.mu.Unlock() + + if r < 0 { + return fmt.Errorf("failed to test to cursor %q: %d", cursor, syscall.Errno(-r)) + } + + return nil +} + +// SeekHead seeks to the beginning of the journal, i.e. the oldest available +// entry. +func (j *Journal) SeekHead() error { + sd_journal_seek_head, err := getFunction("sd_journal_seek_head") + if err != nil { + return err + } + + j.mu.Lock() + r := C.my_sd_journal_seek_head(sd_journal_seek_head, j.cjournal) + j.mu.Unlock() + + if r < 0 { + return fmt.Errorf("failed to seek to head of journal: %d", syscall.Errno(-r)) + } + + return nil +} + +// SeekTail may be used to seek to the end of the journal, i.e. the most recent +// available entry. +func (j *Journal) SeekTail() error { + sd_journal_seek_tail, err := getFunction("sd_journal_seek_tail") + if err != nil { + return err + } + + j.mu.Lock() + r := C.my_sd_journal_seek_tail(sd_journal_seek_tail, j.cjournal) + j.mu.Unlock() + + if r < 0 { + return fmt.Errorf("failed to seek to tail of journal: %d", syscall.Errno(-r)) + } + + return nil +} + +// SeekRealtimeUsec seeks to the entry with the specified realtime (wallclock) +// timestamp, i.e. CLOCK_REALTIME. +func (j *Journal) SeekRealtimeUsec(usec uint64) error { + sd_journal_seek_realtime_usec, err := getFunction("sd_journal_seek_realtime_usec") + if err != nil { + return err + } + + j.mu.Lock() + r := C.my_sd_journal_seek_realtime_usec(sd_journal_seek_realtime_usec, j.cjournal, C.uint64_t(usec)) + j.mu.Unlock() + + if r < 0 { + return fmt.Errorf("failed to seek to %d: %d", usec, syscall.Errno(-r)) + } + + return nil +} + +// SeekCursor seeks to a concrete journal cursor. +func (j *Journal) SeekCursor(cursor string) error { + sd_journal_seek_cursor, err := getFunction("sd_journal_seek_cursor") + if err != nil { + return err + } + + c := C.CString(cursor) + defer C.free(unsafe.Pointer(c)) + + j.mu.Lock() + r := C.my_sd_journal_seek_cursor(sd_journal_seek_cursor, j.cjournal, c) + j.mu.Unlock() + + if r < 0 { + return fmt.Errorf("failed to seek to cursor %q: %d", cursor, syscall.Errno(-r)) + } + + return nil +} + +// Wait will synchronously wait until the journal gets changed. The maximum time +// this call sleeps may be controlled with the timeout parameter. If +// sdjournal.IndefiniteWait is passed as the timeout parameter, Wait will +// wait indefinitely for a journal change. +func (j *Journal) Wait(timeout time.Duration) int { + var to uint64 + + sd_journal_wait, err := getFunction("sd_journal_wait") + if err != nil { + return -1 + } + + if timeout == IndefiniteWait { + // sd_journal_wait(3) calls for a (uint64_t) -1 to be passed to signify + // indefinite wait, but using a -1 overflows our C.uint64_t, so we use an + // equivalent hex value. + to = 0xffffffffffffffff + } else { + to = uint64(time.Now().Add(timeout).Unix() / 1000) + } + j.mu.Lock() + r := C.my_sd_journal_wait(sd_journal_wait, j.cjournal, C.uint64_t(to)) + j.mu.Unlock() + + return int(r) +} + +// GetUsage returns the journal disk space usage, in bytes. +func (j *Journal) GetUsage() (uint64, error) { + var out C.uint64_t + + sd_journal_get_usage, err := getFunction("sd_journal_get_usage") + if err != nil { + return 0, err + } + + j.mu.Lock() + r := C.my_sd_journal_get_usage(sd_journal_get_usage, j.cjournal, &out) + j.mu.Unlock() + + if r < 0 { + return 0, fmt.Errorf("failed to get journal disk space usage: %d", syscall.Errno(-r)) + } + + return uint64(out), nil +} + +// GetUniqueValues returns all unique values for a given field. +func (j *Journal) GetUniqueValues(field string) ([]string, error) { + var result []string + + sd_journal_query_unique, err := getFunction("sd_journal_query_unique") + if err != nil { + return nil, err + } + + sd_journal_enumerate_unique, err := getFunction("sd_journal_enumerate_unique") + if err != nil { + return nil, err + } + + sd_journal_restart_unique, err := getFunction("sd_journal_restart_unique") + if err != nil { + return nil, err + } + + j.mu.Lock() + defer j.mu.Unlock() + + f := C.CString(field) + defer C.free(unsafe.Pointer(f)) + + r := C.my_sd_journal_query_unique(sd_journal_query_unique, j.cjournal, f) + + if r < 0 { + return nil, fmt.Errorf("failed to query journal: %d", syscall.Errno(-r)) + } + + // Implements the SD_JOURNAL_FOREACH_UNIQUE macro from sd-journal.h + var d unsafe.Pointer + var l C.size_t + C.my_sd_journal_restart_unique(sd_journal_restart_unique, j.cjournal) + for { + r = C.my_sd_journal_enumerate_unique(sd_journal_enumerate_unique, j.cjournal, &d, &l) + if r == 0 { + break + } + + if r < 0 { + return nil, fmt.Errorf("failed to read message field: %d", syscall.Errno(-r)) + } + + msg := C.GoStringN((*C.char)(d), C.int(l)) + kv := strings.SplitN(msg, "=", 2) + if len(kv) < 2 { + return nil, fmt.Errorf("failed to parse field") + } + + result = append(result, kv[1]) + } + + return result, nil +} diff --git a/vendor/github.com/coreos/go-systemd/sdjournal/read.go b/vendor/github.com/coreos/go-systemd/sdjournal/read.go new file mode 100644 index 000000000..b581f03b4 --- /dev/null +++ b/vendor/github.com/coreos/go-systemd/sdjournal/read.go @@ -0,0 +1,260 @@ +// Copyright 2015 RedHat, Inc. +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package sdjournal + +import ( + "errors" + "fmt" + "io" + "log" + "strings" + "time" +) + +var ( + ErrExpired = errors.New("Timeout expired") +) + +// JournalReaderConfig represents options to drive the behavior of a JournalReader. +type JournalReaderConfig struct { + // The Since, NumFromTail and Cursor options are mutually exclusive and + // determine where the reading begins within the journal. The order in which + // options are written is exactly the order of precedence. + Since time.Duration // start relative to a Duration from now + NumFromTail uint64 // start relative to the tail + Cursor string // start relative to the cursor + + // Show only journal entries whose fields match the supplied values. If + // the array is empty, entries will not be filtered. + Matches []Match + + // If not empty, the journal instance will point to a journal residing + // in this directory. The supplied path may be relative or absolute. + Path string +} + +// JournalReader is an io.ReadCloser which provides a simple interface for iterating through the +// systemd journal. A JournalReader is not safe for concurrent use by multiple goroutines. +type JournalReader struct { + journal *Journal + msgReader *strings.Reader +} + +// NewJournalReader creates a new JournalReader with configuration options that are similar to the +// systemd journalctl tool's iteration and filtering features. +func NewJournalReader(config JournalReaderConfig) (*JournalReader, error) { + r := &JournalReader{} + + // Open the journal + var err error + if config.Path != "" { + r.journal, err = NewJournalFromDir(config.Path) + } else { + r.journal, err = NewJournal() + } + if err != nil { + return nil, err + } + + // Add any supplied matches + for _, m := range config.Matches { + r.journal.AddMatch(m.String()) + } + + // Set the start position based on options + if config.Since != 0 { + // Start based on a relative time + start := time.Now().Add(config.Since) + if err := r.journal.SeekRealtimeUsec(uint64(start.UnixNano() / 1000)); err != nil { + return nil, err + } + } else if config.NumFromTail != 0 { + // Start based on a number of lines before the tail + if err := r.journal.SeekTail(); err != nil { + return nil, err + } + + // Move the read pointer into position near the tail. Go one further than + // the option so that the initial cursor advancement positions us at the + // correct starting point. + skip, err := r.journal.PreviousSkip(config.NumFromTail + 1) + if err != nil { + return nil, err + } + // If we skipped fewer lines than expected, we have reached journal start. + // Thus, we seek to head so that next invocation can read the first line. + if skip != config.NumFromTail+1 { + if err := r.journal.SeekHead(); err != nil { + return nil, err + } + } + } else if config.Cursor != "" { + // Start based on a custom cursor + if err := r.journal.SeekCursor(config.Cursor); err != nil { + return nil, err + } + } + + return r, nil +} + +// Read reads entries from the journal. Read follows the Reader interface so +// it must be able to read a specific amount of bytes. Journald on the other +// hand only allows us to read full entries of arbitrary size (without byte +// granularity). JournalReader is therefore internally buffering entries that +// don't fit in the read buffer. Callers should keep calling until 0 and/or an +// error is returned. +func (r *JournalReader) Read(b []byte) (int, error) { + var err error + + if r.msgReader == nil { + var c uint64 + + // Advance the journal cursor. It has to be called at least one time + // before reading + c, err = r.journal.Next() + + // An unexpected error + if err != nil { + return 0, err + } + + // EOF detection + if c == 0 { + return 0, io.EOF + } + + // Build a message + var msg string + msg, err = r.buildMessage() + + if err != nil { + return 0, err + } + r.msgReader = strings.NewReader(msg) + } + + // Copy and return the message + var sz int + sz, err = r.msgReader.Read(b) + if err == io.EOF { + // The current entry has been fully read. Don't propagate this + // EOF, so the next entry can be read at the next Read() + // iteration. + r.msgReader = nil + return sz, nil + } + if err != nil { + return sz, err + } + if r.msgReader.Len() == 0 { + r.msgReader = nil + } + + return sz, nil +} + +// Close closes the JournalReader's handle to the journal. +func (r *JournalReader) Close() error { + return r.journal.Close() +} + +// Rewind attempts to rewind the JournalReader to the first entry. +func (r *JournalReader) Rewind() error { + r.msgReader = nil + return r.journal.SeekHead() +} + +// Follow synchronously follows the JournalReader, writing each new journal entry to writer. The +// follow will continue until a single time.Time is received on the until channel. +func (r *JournalReader) Follow(until <-chan time.Time, writer io.Writer) (err error) { + + // Process journal entries and events. Entries are flushed until the tail or + // timeout is reached, and then we wait for new events or the timeout. + var msg = make([]byte, 64*1<<(10)) +process: + for { + c, err := r.Read(msg) + if err != nil && err != io.EOF { + break process + } + + select { + case <-until: + return ErrExpired + default: + if c > 0 { + if _, err = writer.Write(msg[:c]); err != nil { + break process + } + continue process + } + } + + // We're at the tail, so wait for new events or time out. + // Holds journal events to process. Tightly bounded for now unless there's a + // reason to unblock the journal watch routine more quickly. + events := make(chan int, 1) + pollDone := make(chan bool, 1) + go func() { + for { + select { + case <-pollDone: + return + default: + events <- r.journal.Wait(time.Duration(1) * time.Second) + } + } + }() + + select { + case <-until: + pollDone <- true + return ErrExpired + case e := <-events: + pollDone <- true + switch e { + case SD_JOURNAL_NOP, SD_JOURNAL_APPEND, SD_JOURNAL_INVALIDATE: + // TODO: need to account for any of these? + default: + log.Printf("Received unknown event: %d\n", e) + } + continue process + } + } + + return +} + +// buildMessage returns a string representing the current journal entry in a simple format which +// includes the entry timestamp and MESSAGE field. +func (r *JournalReader) buildMessage() (string, error) { + var msg string + var usec uint64 + var err error + + if msg, err = r.journal.GetData("MESSAGE"); err != nil { + return "", err + } + + if usec, err = r.journal.GetRealtimeUsec(); err != nil { + return "", err + } + + timestamp := time.Unix(0, int64(usec)*int64(time.Microsecond)) + + return fmt.Sprintf("%s %s\n", timestamp, msg), nil +} diff --git a/vendor/github.com/coreos/pkg/LICENSE b/vendor/github.com/coreos/pkg/LICENSE new file mode 100644 index 000000000..e06d20818 --- /dev/null +++ b/vendor/github.com/coreos/pkg/LICENSE @@ -0,0 +1,202 @@ +Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright {yyyy} {name of copyright owner} + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + diff --git a/vendor/github.com/coreos/pkg/NOTICE b/vendor/github.com/coreos/pkg/NOTICE new file mode 100644 index 000000000..b39ddfa5c --- /dev/null +++ b/vendor/github.com/coreos/pkg/NOTICE @@ -0,0 +1,5 @@ +CoreOS Project +Copyright 2014 CoreOS, Inc + +This product includes software developed at CoreOS, Inc. +(http://www.coreos.com/). diff --git a/vendor/github.com/coreos/pkg/README.md b/vendor/github.com/coreos/pkg/README.md new file mode 100644 index 000000000..ca68a07f0 --- /dev/null +++ b/vendor/github.com/coreos/pkg/README.md @@ -0,0 +1,4 @@ +a collection of go utility packages + +[](https://travis-ci.org/coreos/pkg) +[](https://godoc.org/github.com/coreos/pkg) diff --git a/vendor/github.com/coreos/pkg/dlopen/dlopen.go b/vendor/github.com/coreos/pkg/dlopen/dlopen.go new file mode 100644 index 000000000..23774f612 --- /dev/null +++ b/vendor/github.com/coreos/pkg/dlopen/dlopen.go @@ -0,0 +1,82 @@ +// Copyright 2016 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// Package dlopen provides some convenience functions to dlopen a library and +// get its symbols. +package dlopen + +// #cgo LDFLAGS: -ldl +// #include <stdlib.h> +// #include <dlfcn.h> +import "C" +import ( + "errors" + "fmt" + "unsafe" +) + +var ErrSoNotFound = errors.New("unable to open a handle to the library") + +// LibHandle represents an open handle to a library (.so) +type LibHandle struct { + Handle unsafe.Pointer + Libname string +} + +// GetHandle tries to get a handle to a library (.so), attempting to access it +// by the names specified in libs and returning the first that is successfully +// opened. Callers are responsible for closing the handler. If no library can +// be successfully opened, an error is returned. +func GetHandle(libs []string) (*LibHandle, error) { + for _, name := range libs { + libname := C.CString(name) + defer C.free(unsafe.Pointer(libname)) + handle := C.dlopen(libname, C.RTLD_LAZY) + if handle != nil { + h := &LibHandle{ + Handle: handle, + Libname: name, + } + return h, nil + } + } + return nil, ErrSoNotFound +} + +// GetSymbolPointer takes a symbol name and returns a pointer to the symbol. +func (l *LibHandle) GetSymbolPointer(symbol string) (unsafe.Pointer, error) { + sym := C.CString(symbol) + defer C.free(unsafe.Pointer(sym)) + + C.dlerror() + p := C.dlsym(l.Handle, sym) + e := C.dlerror() + if e != nil { + return nil, fmt.Errorf("error resolving symbol %q: %v", symbol, errors.New(C.GoString(e))) + } + + return p, nil +} + +// Close closes a LibHandle. +func (l *LibHandle) Close() error { + C.dlerror() + C.dlclose(l.Handle) + e := C.dlerror() + if e != nil { + return fmt.Errorf("error closing %v: %v", l.Libname, errors.New(C.GoString(e))) + } + + return nil +} diff --git a/vendor/github.com/coreos/pkg/dlopen/dlopen_example.go b/vendor/github.com/coreos/pkg/dlopen/dlopen_example.go new file mode 100644 index 000000000..48a660104 --- /dev/null +++ b/vendor/github.com/coreos/pkg/dlopen/dlopen_example.go @@ -0,0 +1,56 @@ +// Copyright 2015 CoreOS, Inc. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +// +// +build linux + +package dlopen + +// #include <string.h> +// #include <stdlib.h> +// +// int +// my_strlen(void *f, const char *s) +// { +// size_t (*strlen)(const char *); +// +// strlen = (size_t (*)(const char *))f; +// return strlen(s); +// } +import "C" + +import ( + "fmt" + "unsafe" +) + +func strlen(libs []string, s string) (int, error) { + h, err := GetHandle(libs) + if err != nil { + return -1, fmt.Errorf(`couldn't get a handle to the library: %v`, err) + } + defer h.Close() + + f := "strlen" + cs := C.CString(s) + defer C.free(unsafe.Pointer(cs)) + + strlen, err := h.GetSymbolPointer(f) + if err != nil { + return -1, fmt.Errorf(`couldn't get symbol %q: %v`, f, err) + } + + len := C.my_strlen(strlen, cs) + + return int(len), nil +} |