diff options
Diffstat (limited to 'libpod')
-rw-r--r-- | libpod/container_api.go | 4 | ||||
-rw-r--r-- | libpod/container_internal.go | 17 | ||||
-rw-r--r-- | libpod/events.go | 17 | ||||
-rw-r--r-- | libpod/events/events.go | 2 | ||||
-rw-r--r-- | libpod/image/image.go | 67 | ||||
-rw-r--r-- | libpod/networking_linux.go | 30 | ||||
-rw-r--r-- | libpod/oci.go | 2 | ||||
-rw-r--r-- | libpod/runtime.go | 156 | ||||
-rw-r--r-- | libpod/runtime_volume_unsupported.go | 2 |
9 files changed, 199 insertions, 98 deletions
diff --git a/libpod/container_api.go b/libpod/container_api.go index 3698a15ec..96435c2ff 100644 --- a/libpod/container_api.go +++ b/libpod/container_api.go @@ -14,7 +14,7 @@ import ( "github.com/containers/libpod/pkg/inspect" "github.com/containers/libpod/pkg/lookup" "github.com/containers/storage/pkg/stringid" - "github.com/docker/docker/daemon/caps" + "github.com/docker/docker/oci/caps" opentracing "github.com/opentracing/opentracing-go" "github.com/pkg/errors" "github.com/sirupsen/logrus" @@ -89,7 +89,6 @@ func (c *Container) Start(ctx context.Context, recursive bool) (err error) { } // Start the container - defer c.newContainerEvent(events.Start) return c.start() } @@ -127,7 +126,6 @@ func (c *Container) StartAndAttach(ctx context.Context, streams *AttachStreams, } close(attachChan) }() - c.newContainerEvent(events.Start) c.newContainerEvent(events.Attach) return attachChan, nil } diff --git a/libpod/container_internal.go b/libpod/container_internal.go index 330745314..872802016 100644 --- a/libpod/container_internal.go +++ b/libpod/container_internal.go @@ -211,6 +211,9 @@ func (c *Container) handleExitFile(exitFile string, fi os.FileInfo) error { c.state.Exited = true + // Write an event for the container's death + c.newContainerExitedEvent(c.state.ExitCode) + return nil } @@ -334,11 +337,13 @@ func (c *Container) setupStorage(ctx context.Context) error { } // Set the default Entrypoint and Command - if c.config.Entrypoint == nil { - c.config.Entrypoint = containerInfo.Config.Config.Entrypoint - } - if c.config.Command == nil { - c.config.Command = containerInfo.Config.Config.Cmd + if containerInfo.Config != nil { + if c.config.Entrypoint == nil { + c.config.Entrypoint = containerInfo.Config.Config.Entrypoint + } + if c.config.Command == nil { + c.config.Command = containerInfo.Config.Config.Cmd + } } artifacts := filepath.Join(c.config.StaticDir, artifactsDir) @@ -948,6 +953,8 @@ func (c *Container) start() error { c.state.State = ContainerStateRunning + defer c.newContainerEvent(events.Start) + return c.save() } diff --git a/libpod/events.go b/libpod/events.go index 9806c117b..f09529a05 100644 --- a/libpod/events.go +++ b/libpod/events.go @@ -1,6 +1,8 @@ package libpod import ( + "os" + "github.com/containers/libpod/libpod/events" "github.com/hpcloud/tail" "github.com/pkg/errors" @@ -19,6 +21,19 @@ func (c *Container) newContainerEvent(status events.Status) { } } +// newContainerExitedEvent creates a new event for a container's death +func (c *Container) newContainerExitedEvent(exitCode int32) { + e := events.NewEvent(events.Exited) + e.ID = c.ID() + e.Name = c.Name() + 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) + } +} + // newPodEvent creates a new event for a libpod pod func (p *Pod) newPodEvent(status events.Status) { e := events.NewEvent(status) @@ -72,7 +87,7 @@ func (r *Runtime) Events(fromStart, stream bool, options []events.EventFilter, e func (r *Runtime) getTail(fromStart, stream bool) (*tail.Tail, error) { reopen := true - seek := tail.SeekInfo{Offset: 0, Whence: 2} + seek := tail.SeekInfo{Offset: 0, Whence: os.SEEK_END} if fromStart || !stream { seek.Whence = 0 reopen = false diff --git a/libpod/events/events.go b/libpod/events/events.go index 186790500..48bbbb00e 100644 --- a/libpod/events/events.go +++ b/libpod/events/events.go @@ -60,6 +60,8 @@ const ( Create Status = "create" // Exec ... Exec Status = "exec" + // Exited indicates that a container's process died + Exited Status = "died" // Export ... Export Status = "export" // History ... diff --git a/libpod/image/image.go b/libpod/image/image.go index 72f07dad1..c5939e055 100644 --- a/libpod/image/image.go +++ b/libpod/image/image.go @@ -1212,3 +1212,70 @@ func (i *Image) newImageEvent(status events.Status) { logrus.Infof("unable to write event to %s", i.imageruntime.EventsLogFilePath) } } + +// LayerInfo keeps information of single layer +type LayerInfo struct { + // Layer ID + ID string + // Parent ID of current layer. + ParentID string + // ChildID of current layer. + // there can be multiple children in case of fork + ChildID []string + // RepoTag will have image repo names, if layer is top layer of image + RepoTags []string + // Size stores Uncompressed size of layer. + Size int64 +} + +// GetLayersMapWithImageInfo returns map of image-layers, with associated information like RepoTags, parent and list of child layers. +func GetLayersMapWithImageInfo(imageruntime *Runtime) (map[string]*LayerInfo, error) { + + // Memory allocated to store map of layers with key LayerID. + // Map will build dependency chain with ParentID and ChildID(s) + layerInfoMap := make(map[string]*LayerInfo) + + // scan all layers & fill size and parent id for each layer in layerInfoMap + layers, err := imageruntime.store.Layers() + if err != nil { + return nil, err + } + for _, layer := range layers { + _, ok := layerInfoMap[layer.ID] + if !ok { + layerInfoMap[layer.ID] = &LayerInfo{ + ID: layer.ID, + Size: layer.UncompressedSize, + ParentID: layer.Parent, + } + } else { + return nil, fmt.Errorf("detected multiple layers with the same ID %q", layer.ID) + } + } + + // scan all layers & add all childs for each layers to layerInfo + for _, layer := range layers { + _, ok := layerInfoMap[layer.ID] + if ok { + if layer.Parent != "" { + layerInfoMap[layer.Parent].ChildID = append(layerInfoMap[layer.Parent].ChildID, layer.ID) + } + } else { + return nil, fmt.Errorf("lookup error: layer-id %s, not found", layer.ID) + } + } + + // Add the Repo Tags to Top layer of each image. + imgs, err := imageruntime.store.Images() + if err != nil { + return nil, err + } + for _, img := range imgs { + e, ok := layerInfoMap[img.TopLayer] + if !ok { + return nil, fmt.Errorf("top-layer for image %s not found local store", img.ID) + } + e.RepoTags = append(e.RepoTags, img.Names...) + } + return layerInfoMap, nil +} diff --git a/libpod/networking_linux.go b/libpod/networking_linux.go index 80d7d8213..d8b0cffcb 100644 --- a/libpod/networking_linux.go +++ b/libpod/networking_linux.go @@ -134,6 +134,15 @@ type slirp4netnsCmd struct { Args slirp4netnsCmdArg `json:"arguments"` } +func checkSlirpFlags(path string) (bool, bool, error) { + cmd := exec.Command(path, "--help") + out, err := cmd.CombinedOutput() + if err != nil { + return false, false, err + } + return strings.Contains(string(out), "--disable-host-loopback"), strings.Contains(string(out), "--mtu"), nil +} + // Configure the network namespace for a rootless container func (r *Runtime) setupRootlessNetNS(ctr *Container) (err error) { defer ctr.rootlessSlirpSyncR.Close() @@ -159,13 +168,24 @@ func (r *Runtime) setupRootlessNetNS(ctr *Container) (err error) { havePortMapping := len(ctr.Config().PortMappings) > 0 apiSocket := filepath.Join(r.ociRuntime.tmpDir, fmt.Sprintf("%s.net", ctr.config.ID)) - var cmd *exec.Cmd + + cmdArgs := []string{} if havePortMapping { - // if we need ports to be mapped from the host, create a API socket to use for communicating with slirp4netns. - cmd = exec.Command(path, "-c", "-e", "3", "-r", "4", "--api-socket", apiSocket, fmt.Sprintf("%d", ctr.state.PID), "tap0") - } else { - cmd = exec.Command(path, "-c", "-e", "3", "-r", "4", fmt.Sprintf("%d", ctr.state.PID), "tap0") + cmdArgs = append(cmdArgs, "--api-socket", apiSocket, fmt.Sprintf("%d", ctr.state.PID)) } + dhp, mtu, err := checkSlirpFlags(path) + if err != nil { + return errors.Wrapf(err, "error checking slirp4netns binary %s", path) + } + if dhp { + cmdArgs = append(cmdArgs, "--disable-host-loopback") + } + if mtu { + cmdArgs = append(cmdArgs, "--mtu", "65520") + } + cmdArgs = append(cmdArgs, "-c", "-e", "3", "-r", "4", fmt.Sprintf("%d", ctr.state.PID), "tap0") + + cmd := exec.Command(path, cmdArgs...) cmd.SysProcAttr = &syscall.SysProcAttr{ Setpgid: true, diff --git a/libpod/oci.go b/libpod/oci.go index c3b5f9af2..30360d289 100644 --- a/libpod/oci.go +++ b/libpod/oci.go @@ -477,7 +477,7 @@ func (r *OCIRuntime) updateContainerStatus(ctr *Container, useRunc bool) error { // If not using runc, we don't need to do most of this. if !useRunc { // If the container's not running, nothing to do. - if ctr.state.State != ContainerStateRunning { + if ctr.state.State != ContainerStateRunning && ctr.state.State != ContainerStatePaused { return nil } diff --git a/libpod/runtime.go b/libpod/runtime.go index fa208a2ca..9836b7aab 100644 --- a/libpod/runtime.go +++ b/libpod/runtime.go @@ -241,6 +241,12 @@ type runtimeConfiguredFrom struct { libpodStaticDirSet bool libpodTmpDirSet bool volPathSet bool + conmonPath bool + conmonEnvVars bool + ociRuntimes bool + runtimePath bool + cniPluginDir bool + noPivotRoot bool } var ( @@ -324,6 +330,22 @@ func SetXdgRuntimeDir(val string) error { // NewRuntime creates a new container runtime // Options can be passed to override the default configuration for the runtime func NewRuntime(options ...RuntimeOption) (runtime *Runtime, err error) { + return newRuntimeFromConfig("", options...) +} + +// NewRuntimeFromConfig creates a new container runtime using the given +// configuration file for its default configuration. Passed RuntimeOption +// functions can be used to mutate this configuration further. +// An error will be returned if the configuration file at the given path does +// not exist or cannot be loaded +func NewRuntimeFromConfig(userConfigPath string, options ...RuntimeOption) (runtime *Runtime, err error) { + if userConfigPath == "" { + return nil, errors.New("invalid configuration file specified") + } + return newRuntimeFromConfig(userConfigPath, options...) +} + +func newRuntimeFromConfig(userConfigPath string, options ...RuntimeOption) (runtime *Runtime, err error) { runtime = new(Runtime) runtime.config = new(RuntimeConfig) runtime.configuredFrom = new(runtimeConfiguredFrom) @@ -358,11 +380,6 @@ func NewRuntime(options ...RuntimeOption) (runtime *Runtime, err error) { rootlessConfigPath = filepath.Join(home, ".config/containers/libpod.conf") - configPath = rootlessConfigPath - if _, err := os.Stat(configPath); err != nil { - foundConfig = false - } - runtimeDir, err := util.GetRootlessRuntimeDir() if err != nil { return nil, err @@ -374,6 +391,20 @@ func NewRuntime(options ...RuntimeOption) (runtime *Runtime, err error) { return nil, errors.Wrapf(err, "cannot set XDG_RUNTIME_DIR") } + } + + if userConfigPath != "" { + configPath = userConfigPath + if _, err := os.Stat(configPath); err != nil { + // If the user specified a config file, we must fail immediately + // when it doesn't exist + return nil, errors.Wrapf(err, "cannot stat %s", configPath) + } + } else if rootless.IsRootless() { + configPath = rootlessConfigPath + if _, err := os.Stat(configPath); err != nil { + foundConfig = false + } } else if _, err := os.Stat(OverrideConfigPath); err == nil { // Use the override configuration path configPath = OverrideConfigPath @@ -409,6 +440,24 @@ func NewRuntime(options ...RuntimeOption) (runtime *Runtime, err error) { if tmpConfig.VolumePath != "" { runtime.configuredFrom.volPathSet = true } + if tmpConfig.ConmonPath != nil { + runtime.configuredFrom.conmonPath = true + } + if tmpConfig.ConmonEnvVars != nil { + runtime.configuredFrom.conmonEnvVars = true + } + if tmpConfig.OCIRuntimes != nil { + runtime.configuredFrom.ociRuntimes = true + } + if tmpConfig.RuntimePath != nil { + runtime.configuredFrom.runtimePath = true + } + if tmpConfig.CNIPluginDir != nil { + runtime.configuredFrom.cniPluginDir = true + } + if tmpConfig.NoPivotRoot { + runtime.configuredFrom.noPivotRoot = true + } if _, err := toml.Decode(string(contents), runtime.config); err != nil { return nil, errors.Wrapf(err, "error decoding configuration file %s", configPath) @@ -428,12 +477,24 @@ func NewRuntime(options ...RuntimeOption) (runtime *Runtime, err error) { } // Cherry pick the settings we want from the global configuration - runtime.config.ConmonPath = tmpConfig.ConmonPath - runtime.config.ConmonEnvVars = tmpConfig.ConmonEnvVars - runtime.config.OCIRuntimes = tmpConfig.OCIRuntimes - runtime.config.RuntimePath = tmpConfig.RuntimePath - runtime.config.CNIPluginDir = tmpConfig.CNIPluginDir - runtime.config.NoPivotRoot = tmpConfig.NoPivotRoot + if !runtime.configuredFrom.conmonPath { + runtime.config.ConmonPath = tmpConfig.ConmonPath + } + if !runtime.configuredFrom.conmonEnvVars { + runtime.config.ConmonEnvVars = tmpConfig.ConmonEnvVars + } + if !runtime.configuredFrom.ociRuntimes { + runtime.config.OCIRuntimes = tmpConfig.OCIRuntimes + } + if !runtime.configuredFrom.runtimePath { + runtime.config.RuntimePath = tmpConfig.RuntimePath + } + if !runtime.configuredFrom.cniPluginDir { + runtime.config.CNIPluginDir = tmpConfig.CNIPluginDir + } + if !runtime.configuredFrom.noPivotRoot { + runtime.config.NoPivotRoot = tmpConfig.NoPivotRoot + } break } } @@ -465,80 +526,9 @@ func NewRuntime(options ...RuntimeOption) (runtime *Runtime, err error) { return runtime, nil } -// NewRuntimeFromConfig creates a new container runtime using the given -// configuration file for its default configuration. Passed RuntimeOption -// functions can be used to mutate this configuration further. -// An error will be returned if the configuration file at the given path does -// not exist or cannot be loaded -func NewRuntimeFromConfig(configPath string, options ...RuntimeOption) (runtime *Runtime, err error) { - runtime = new(Runtime) - runtime.config = new(RuntimeConfig) - runtime.configuredFrom = new(runtimeConfiguredFrom) - - // Set three fields not in the TOML config - runtime.config.StateType = defaultRuntimeConfig.StateType - runtime.config.OCIRuntime = defaultRuntimeConfig.OCIRuntime - - storageConf, err := util.GetDefaultStoreOptions() - if err != nil { - return nil, errors.Wrapf(err, "error retrieving storage config") - } - runtime.config.StorageConfig = storageConf - runtime.config.StaticDir = filepath.Join(storageConf.GraphRoot, "libpod") - runtime.config.VolumePath = filepath.Join(storageConf.GraphRoot, "volumes") - - tmpDir, err := getDefaultTmpDir() - if err != nil { - return nil, err - } - runtime.config.TmpDir = tmpDir - if rootless.IsRootless() { - runtimeDir, err := util.GetRootlessRuntimeDir() - if err != nil { - return nil, err - } - // containers/image uses XDG_RUNTIME_DIR to locate the auth file. - // So make sure the env variable is set. - if err := SetXdgRuntimeDir(runtimeDir); err != nil { - return nil, errors.Wrapf(err, "cannot set XDG_RUNTIME_DIR") - } - } - - // Check to see if the given configuration file exists - if _, err := os.Stat(configPath); err != nil { - return nil, errors.Wrapf(err, "error checking existence of configuration file %s", configPath) - } - - // Read contents of the config file - contents, err := ioutil.ReadFile(configPath) - if err != nil { - return nil, errors.Wrapf(err, "error reading configuration file %s", configPath) - } - - // Decode configuration file - if _, err := toml.Decode(string(contents), runtime.config); err != nil { - return nil, errors.Wrapf(err, "error decoding configuration from file %s", configPath) - } - - // Overwrite the config with user-given configuration options - for _, opt := range options { - if err := opt(runtime); err != nil { - return nil, errors.Wrapf(err, "error configuring runtime") - } - } - - if err := makeRuntime(runtime); err != nil { - return nil, err - } - - return runtime, nil -} - // Make a new runtime based on the given configuration // Sets up containers/storage, state store, OCI runtime func makeRuntime(runtime *Runtime) (err error) { - runtime.config.EventsLogFilePath = filepath.Join(runtime.config.TmpDir, "events", "events.log") - // Backward compatibility for `runtime_path` if runtime.config.RuntimePath != nil { // Don't print twice in rootless mode. @@ -697,6 +687,8 @@ func makeRuntime(runtime *Runtime) (err error) { runtime.config.VolumePath = dbConfig.VolumePath } + runtime.config.EventsLogFilePath = filepath.Join(runtime.config.TmpDir, "events", "events.log") + logrus.Debugf("Using graph driver %s", runtime.config.StorageConfig.GraphDriverName) logrus.Debugf("Using graph root %s", runtime.config.StorageConfig.GraphRoot) logrus.Debugf("Using run root %s", runtime.config.StorageConfig.RunRoot) diff --git a/libpod/runtime_volume_unsupported.go b/libpod/runtime_volume_unsupported.go index d87459759..5fe487114 100644 --- a/libpod/runtime_volume_unsupported.go +++ b/libpod/runtime_volume_unsupported.go @@ -6,7 +6,7 @@ import ( "context" ) -func (r *Runtime) removeVolume(ctx context.Context, v *Volume, force, prune bool) error { +func (r *Runtime) removeVolume(ctx context.Context, v *Volume, force bool) error { return ErrNotImplemented } |