diff options
Diffstat (limited to 'libpod')
-rw-r--r-- | libpod/boltdb_state_internal.go | 7 | ||||
-rw-r--r-- | libpod/common_test.go | 16 | ||||
-rw-r--r-- | libpod/container.go | 3 | ||||
-rw-r--r-- | libpod/container_attach_linux.go | 4 | ||||
-rw-r--r-- | libpod/container_inspect.go | 99 | ||||
-rw-r--r-- | libpod/container_internal.go | 71 | ||||
-rw-r--r-- | libpod/container_internal_linux.go | 66 | ||||
-rw-r--r-- | libpod/events.go | 55 | ||||
-rw-r--r-- | libpod/events/config.go | 11 | ||||
-rw-r--r-- | libpod/events/events.go | 2 | ||||
-rw-r--r-- | libpod/events/journal_linux.go | 4 | ||||
-rw-r--r-- | libpod/image/pull.go | 4 | ||||
-rw-r--r-- | libpod/kube.go | 164 | ||||
-rw-r--r-- | libpod/lock/shm/shm_lock.go | 2 | ||||
-rw-r--r-- | libpod/networking_linux.go | 12 | ||||
-rw-r--r-- | libpod/oci.go | 20 | ||||
-rw-r--r-- | libpod/oci_linux.go | 4 | ||||
-rw-r--r-- | libpod/options.go | 2 | ||||
-rw-r--r-- | libpod/runtime.go | 10 | ||||
-rw-r--r-- | libpod/runtime_ctr.go | 26 | ||||
-rw-r--r-- | libpod/runtime_migrate.go | 4 | ||||
-rw-r--r-- | libpod/stats.go | 4 | ||||
-rw-r--r-- | libpod/util.go | 20 |
23 files changed, 378 insertions, 232 deletions
diff --git a/libpod/boltdb_state_internal.go b/libpod/boltdb_state_internal.go index 122bb5935..ee2784cdd 100644 --- a/libpod/boltdb_state_internal.go +++ b/libpod/boltdb_state_internal.go @@ -339,7 +339,6 @@ func getRuntimeConfigBucket(tx *bolt.Tx) (*bolt.Bucket, error) { } func (s *BoltState) getContainerFromDB(id []byte, ctr *Container, ctrsBkt *bolt.Bucket) error { - valid := true ctrBkt := ctrsBkt.Bucket(id) if ctrBkt == nil { return errors.Wrapf(define.ErrNoSuchCtr, "container %s not found in DB", string(id)) @@ -386,7 +385,7 @@ func (s *BoltState) getContainerFromDB(id []byte, ctr *Container, ctrsBkt *bolt. } ctr.runtime = s.runtime - ctr.valid = valid + ctr.valid = true return nil } @@ -639,7 +638,7 @@ func (s *BoltState) addContainer(ctr *Container, pod *Pod) error { } // Add ctr to pod - if pod != nil { + if pod != nil && podCtrs != nil { if err := podCtrs.Put(ctrID, ctrName); err != nil { return errors.Wrapf(err, "error adding container %s to pod %s", ctr.ID(), pod.ID()) } @@ -737,7 +736,7 @@ func (s *BoltState) removeContainer(ctr *Container, pod *Pod, tx *bolt.Tx) error } } - if podDB != nil { + if podDB != nil && pod != nil { // Check if the container is in the pod, remove it if it is podCtrs := podDB.Bucket(containersBkt) if podCtrs == nil { diff --git a/libpod/common_test.go b/libpod/common_test.go index ae3cb1c87..93ca7bc71 100644 --- a/libpod/common_test.go +++ b/libpod/common_test.go @@ -89,13 +89,13 @@ func getTestContainer(id, name string, manager lock.Manager) (*Container, error) ctr.config.Labels["test"] = "testing" - // Allocate a lock for the container - lock, err := manager.AllocateLock() + // Allocate a containerLock for the container + containerLock, err := manager.AllocateLock() if err != nil { return nil, err } - ctr.lock = lock - ctr.config.LockID = lock.ID() + ctr.lock = containerLock + ctr.config.LockID = containerLock.ID() return ctr, nil } @@ -114,13 +114,13 @@ func getTestPod(id, name string, manager lock.Manager) (*Pod, error) { valid: true, } - // Allocate a lock for the pod - lock, err := manager.AllocateLock() + // Allocate a podLock for the pod + podLock, err := manager.AllocateLock() if err != nil { return nil, err } - pod.lock = lock - pod.config.LockID = lock.ID() + pod.lock = podLock + pod.config.LockID = podLock.ID() return pod, nil } diff --git a/libpod/container.go b/libpod/container.go index bfbc47d76..a9b512de9 100644 --- a/libpod/container.go +++ b/libpod/container.go @@ -138,6 +138,9 @@ type Container struct { // being checkpointed. If requestedIP is set it will be used instead // of config.StaticIP. requestedIP net.IP + + // This is true if a container is restored from a checkpoint. + restoreFromCheckpoint bool } // ContainerState contains the current state of the container diff --git a/libpod/container_attach_linux.go b/libpod/container_attach_linux.go index fc53268c3..17b09fccc 100644 --- a/libpod/container_attach_linux.go +++ b/libpod/container_attach_linux.go @@ -145,7 +145,9 @@ func redirectResponseToOutputStreams(outputStream, errorStream io.Writer, writeO default: logrus.Infof("Received unexpected attach type %+d", buf[0]) } - + if dst == nil { + return errors.New("output destination cannot be nil") + } if doWrite { nw, ew := dst.Write(buf[1:nr]) if ew != nil { diff --git a/libpod/container_inspect.go b/libpod/container_inspect.go index 938a5b210..2de78254c 100644 --- a/libpod/container_inspect.go +++ b/libpod/container_inspect.go @@ -206,12 +206,12 @@ func (c *Container) Inspect(size bool) (*InspectContainerData, error) { func (c *Container) getContainerInspectData(size bool, driverData *driver.Data) (*InspectContainerData, error) { config := c.config runtimeInfo := c.state - spec, err := c.specFromState() + stateSpec, err := c.specFromState() if err != nil { return nil, err } - // Process is allowed to be nil in the spec + // Process is allowed to be nil in the stateSpec args := []string{} if config.Spec.Process != nil { args = config.Spec.Process.Args @@ -244,7 +244,7 @@ func (c *Container) getContainerInspectData(size bool, driverData *driver.Data) } } - mounts, err := c.getInspectMounts(spec) + mounts, err := c.getInspectMounts(stateSpec) if err != nil { return nil, err } @@ -255,7 +255,7 @@ func (c *Container) getContainerInspectData(size bool, driverData *driver.Data) Path: path, Args: args, State: &InspectContainerState{ - OciVersion: spec.Version, + OciVersion: stateSpec.Version, Status: runtimeInfo.State.String(), Running: runtimeInfo.State == define.ContainerStateRunning, Paused: runtimeInfo.State == define.ContainerStatePaused, @@ -285,9 +285,9 @@ func (c *Container) getContainerInspectData(size bool, driverData *driver.Data) Driver: driverData.Name, MountLabel: config.MountLabel, ProcessLabel: config.ProcessLabel, - EffectiveCaps: spec.Process.Capabilities.Effective, - BoundingCaps: spec.Process.Capabilities.Bounding, - AppArmorProfile: spec.Process.ApparmorProfile, + EffectiveCaps: stateSpec.Process.Capabilities.Effective, + BoundingCaps: stateSpec.Process.Capabilities.Bounding, + AppArmorProfile: stateSpec.Process.ApparmorProfile, ExecIDs: execIDs, GraphDriver: driverData, Mounts: mounts, @@ -338,7 +338,7 @@ func (c *Container) getContainerInspectData(size bool, driverData *driver.Data) // Get information on the container's network namespace (if present) data = c.getContainerNetworkInfo(data) - inspectConfig, err := c.generateInspectContainerConfig(spec) + inspectConfig, err := c.generateInspectContainerConfig(stateSpec) if err != nil { return nil, err } @@ -370,58 +370,41 @@ func (c *Container) getInspectMounts(ctrSpec *spec.Spec) ([]InspectMount, error) return inspectMounts, nil } - // We need to parse all named volumes and mounts into maps, so we don't - // end up with repeated lookups for each user volume. - // Map destination to struct, as destination is what is stored in - // UserVolumes. - namedVolumes := make(map[string]*ContainerNamedVolume) - mounts := make(map[string]spec.Mount) - for _, namedVol := range c.config.NamedVolumes { - namedVolumes[namedVol.Dest] = namedVol - } - for _, mount := range ctrSpec.Mounts { - mounts[mount.Destination] = mount - } + namedVolumes, mounts := c.sortUserVolumes(ctrSpec) + for _, volume := range namedVolumes { + mountStruct := InspectMount{} + mountStruct.Type = "volume" + mountStruct.Destination = volume.Dest + mountStruct.Name = volume.Name + + // For src and driver, we need to look up the named + // volume. + volFromDB, err := c.runtime.state.Volume(volume.Name) + if err != nil { + return nil, errors.Wrapf(err, "error looking up volume %s in container %s config", volume.Name, c.ID()) + } + mountStruct.Driver = volFromDB.Driver() + mountStruct.Source = volFromDB.MountPoint() - for _, vol := range c.config.UserVolumes { - // We need to look up the volumes. - // First: is it a named volume? - if volume, ok := namedVolumes[vol]; ok { - mountStruct := InspectMount{} - mountStruct.Type = "volume" - mountStruct.Destination = volume.Dest - mountStruct.Name = volume.Name - - // For src and driver, we need to look up the named - // volume. - volFromDB, err := c.runtime.state.Volume(volume.Name) - if err != nil { - return nil, errors.Wrapf(err, "error looking up volume %s in container %s config", volume.Name, c.ID()) - } - mountStruct.Driver = volFromDB.Driver() - mountStruct.Source = volFromDB.MountPoint() - - parseMountOptionsForInspect(volume.Options, &mountStruct) - - inspectMounts = append(inspectMounts, mountStruct) - } else if mount, ok := mounts[vol]; ok { - // It's a mount. - // Is it a tmpfs? If so, discard. - if mount.Type == "tmpfs" { - continue - } - - mountStruct := InspectMount{} - mountStruct.Type = "bind" - mountStruct.Source = mount.Source - mountStruct.Destination = mount.Destination - - parseMountOptionsForInspect(mount.Options, &mountStruct) - - inspectMounts = append(inspectMounts, mountStruct) + parseMountOptionsForInspect(volume.Options, &mountStruct) + + inspectMounts = append(inspectMounts, mountStruct) + } + for _, mount := range mounts { + // It's a mount. + // Is it a tmpfs? If so, discard. + if mount.Type == "tmpfs" { + continue } - // We couldn't find a mount. Log a warning. - logrus.Warnf("Could not find mount at destination %q when building inspect output for container %s", vol, c.ID()) + + mountStruct := InspectMount{} + mountStruct.Type = "bind" + mountStruct.Source = mount.Source + mountStruct.Destination = mount.Destination + + parseMountOptionsForInspect(mount.Options, &mountStruct) + + inspectMounts = append(inspectMounts, mountStruct) } return inspectMounts, nil diff --git a/libpod/container_internal.go b/libpod/container_internal.go index cb6c35049..c409da96a 100644 --- a/libpod/container_internal.go +++ b/libpod/container_internal.go @@ -352,6 +352,16 @@ func (c *Container) setupStorage(ctx context.Context) error { }, LabelOpts: c.config.LabelOpts, } + if c.restoreFromCheckpoint { + // If restoring from a checkpoint, the root file-system + // needs to be mounted with the same SELinux labels as + // it was mounted previously. + if options.Flags == nil { + options.Flags = make(map[string]interface{}) + } + options.Flags["ProcessLabel"] = c.config.ProcessLabel + options.Flags["MountLabel"] = c.config.MountLabel + } if c.config.Privileged { privOpt := func(opt string) bool { for _, privopt := range []string{"nodev", "nosuid", "noexec"} { @@ -555,7 +565,7 @@ func (c *Container) removeConmonFiles() error { if !os.IsNotExist(err) { return errors.Wrapf(err, "error running stat on container %s exit file", c.ID()) } - } else if err == nil { + } else { // Rename should replace the old exit file (if it exists) if err := os.Rename(exitFile, oldExitFile); err != nil { return errors.Wrapf(err, "error renaming container %s exit file", c.ID()) @@ -568,11 +578,11 @@ func (c *Container) removeConmonFiles() error { func (c *Container) export(path string) error { mountPoint := c.state.Mountpoint if !c.state.Mounted { - mount, err := c.runtime.store.Mount(c.ID(), c.config.MountLabel) + containerMount, err := c.runtime.store.Mount(c.ID(), c.config.MountLabel) if err != nil { return errors.Wrapf(err, "error mounting container %q", c.ID()) } - mountPoint = mount + mountPoint = containerMount defer func() { if _, err := c.runtime.store.Unmount(c.ID(), false); err != nil { logrus.Errorf("error unmounting container %q: %v", c.ID(), err) @@ -610,7 +620,7 @@ func (c *Container) isStopped() (bool, error) { if err != nil { return true, err } - return (c.state.State != define.ContainerStateRunning && c.state.State != define.ContainerStatePaused), nil + return c.state.State != define.ContainerStateRunning && c.state.State != define.ContainerStatePaused, nil } // save container state to the database @@ -856,18 +866,18 @@ func (c *Container) init(ctx context.Context, retainRetries bool) error { span.SetTag("struct", "container") defer span.Finish() - // Generate the OCI spec - spec, err := c.generateSpec(ctx) + // Generate the OCI newSpec + newSpec, err := c.generateSpec(ctx) if err != nil { return err } - // Save the OCI spec to disk - if err := c.saveSpec(spec); err != nil { + // Save the OCI newSpec to disk + if err := c.saveSpec(newSpec); err != nil { return err } - // With the spec complete, do an OCI create + // With the newSpec complete, do an OCI create if err := c.ociRuntime.createContainer(c, c.config.CgroupParent, nil); err != nil { return err } @@ -1167,8 +1177,8 @@ func (c *Container) cleanupStorage() error { return nil } - for _, mount := range c.config.Mounts { - if err := c.unmountSHM(mount); err != nil { + for _, containerMount := range c.config.Mounts { + if err := c.unmountSHM(containerMount); err != nil { return err } } @@ -1399,14 +1409,14 @@ func (c *Container) setupOCIHooks(ctx context.Context, config *spec.Spec) (exten } return nil, err } - hooks, err := manager.Hooks(config, c.Spec().Annotations, len(c.config.UserVolumes) > 0) + ociHooks, err := manager.Hooks(config, c.Spec().Annotations, len(c.config.UserVolumes) > 0) if err != nil { return nil, err } - if len(hooks) > 0 || config.Hooks != nil { - logrus.Warnf("implicit hook directories are deprecated; set --hooks-dir=%q explicitly to continue to load hooks from this directory", hDir) + if len(ociHooks) > 0 || config.Hooks != nil { + logrus.Warnf("implicit hook directories are deprecated; set --ociHooks-dir=%q explicitly to continue to load ociHooks from this directory", hDir) } - for i, hook := range hooks { + for i, hook := range ociHooks { allHooks[i] = hook } } @@ -1537,3 +1547,34 @@ func (c *Container) prepareCheckpointExport() (err error) { return nil } + +// sortUserVolumes sorts the volumes specified for a container +// between named and normal volumes +func (c *Container) sortUserVolumes(ctrSpec *spec.Spec) ([]*ContainerNamedVolume, []spec.Mount) { + namedUserVolumes := []*ContainerNamedVolume{} + userMounts := []spec.Mount{} + + // We need to parse all named volumes and mounts into maps, so we don't + // end up with repeated lookups for each user volume. + // Map destination to struct, as destination is what is stored in + // UserVolumes. + namedVolumes := make(map[string]*ContainerNamedVolume) + mounts := make(map[string]spec.Mount) + for _, namedVol := range c.config.NamedVolumes { + namedVolumes[namedVol.Dest] = namedVol + } + for _, mount := range ctrSpec.Mounts { + mounts[mount.Destination] = mount + } + + for _, vol := range c.config.UserVolumes { + if volume, ok := namedVolumes[vol]; ok { + namedUserVolumes = append(namedUserVolumes, volume) + } else if mount, ok := mounts[vol]; ok { + userMounts = append(userMounts, mount) + } else { + logrus.Warnf("Could not find mount at destination %q when parsing user volumes for container %s", vol, c.ID()) + } + } + return namedUserVolumes, userMounts +} diff --git a/libpod/container_internal_linux.go b/libpod/container_internal_linux.go index fad45233a..686a595de 100644 --- a/libpod/container_internal_linux.go +++ b/libpod/container_internal_linux.go @@ -185,9 +185,13 @@ func (c *Container) generateSpec(ctx context.Context) (*spec.Spec, error) { // If network namespace was requested, add it now if c.config.CreateNetNS { if c.config.PostConfigureNetNS { - g.AddOrReplaceLinuxNamespace(spec.NetworkNamespace, "") + if err := g.AddOrReplaceLinuxNamespace(spec.NetworkNamespace, ""); err != nil { + return nil, err + } } else { - g.AddOrReplaceLinuxNamespace(spec.NetworkNamespace, c.state.NetNS.Path()) + if err := g.AddOrReplaceLinuxNamespace(spec.NetworkNamespace, c.state.NetNS.Path()); err != nil { + return nil, err + } } } @@ -415,7 +419,9 @@ func (c *Container) generateSpec(ctx context.Context) (*spec.Spec, error) { if rootPropagation != "" { logrus.Debugf("set root propagation to %q", rootPropagation) - g.SetLinuxRootPropagation(rootPropagation) + if err := g.SetLinuxRootPropagation(rootPropagation); err != nil { + return nil, err + } } // Warning: precreate hooks may alter g.Config in place. @@ -561,7 +567,9 @@ func (c *Container) checkpointRestoreLabelLog(fileName string) (err error) { if err != nil { return errors.Wrapf(err, "failed to create CRIU log file %q", dumpLog) } - logFile.Close() + if err := logFile.Close(); err != nil { + logrus.Errorf("unable to close log file: %q", err) + } if err = label.SetFileLabel(dumpLog, c.MountLabel()); err != nil { return errors.Wrapf(err, "failed to label CRIU log file %q", dumpLog) } @@ -620,9 +628,11 @@ func (c *Container) checkpoint(ctx context.Context, options ContainerCheckpointO "config.dump", "spec.dump", } - for _, delete := range cleanup { - file := filepath.Join(c.bundlePath(), delete) - os.Remove(file) + for _, del := range cleanup { + file := filepath.Join(c.bundlePath(), del) + if err := os.Remove(file); err != nil { + logrus.Debugf("unable to remove file %s", file) + } } } @@ -702,7 +712,9 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti if err != nil { return err } - json.Unmarshal(networkJSON, &networkStatus) + if err := json.Unmarshal(networkJSON, &networkStatus); err != nil { + return err + } // Take the first IP address var IP net.IP if len(networkStatus) > 0 { @@ -744,7 +756,9 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti // We want to have the same network namespace as before. if c.config.CreateNetNS { - g.AddOrReplaceLinuxNamespace(spec.NetworkNamespace, c.state.NetNS.Path()) + if err := g.AddOrReplaceLinuxNamespace(spec.NetworkNamespace, c.state.NetNS.Path()); err != nil { + return err + } } if err := c.makeBindMounts(); err != nil { @@ -769,7 +783,9 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti } // Cleanup for a working restore. - c.removeConmonFiles() + if err := c.removeConmonFiles(); err != nil { + return err + } // Save the OCI spec to disk if err := c.saveSpec(g.Spec()); err != nil { @@ -793,8 +809,8 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti logrus.Debugf("Non-fatal: removal of checkpoint directory (%s) failed: %v", c.CheckpointPath(), err) } cleanup := [...]string{"restore.log", "dump.log", "stats-dump", "stats-restore", "network.status"} - for _, delete := range cleanup { - file := filepath.Join(c.bundlePath(), delete) + for _, del := range cleanup { + file := filepath.Join(c.bundlePath(), del) err = os.Remove(file) if err != nil { logrus.Debugf("Non-fatal: removal of checkpoint file (%s) failed: %v", file, err) @@ -824,14 +840,14 @@ func (c *Container) makeBindMounts() error { // will recreate. Only do this if we aren't sharing them with // another container. if c.config.NetNsCtr == "" { - if path, ok := c.state.BindMounts["/etc/resolv.conf"]; ok { - if err := os.Remove(path); err != nil && !os.IsNotExist(err) { + if resolvePath, ok := c.state.BindMounts["/etc/resolv.conf"]; ok { + if err := os.Remove(resolvePath); err != nil && !os.IsNotExist(err) { return errors.Wrapf(err, "error removing container %s resolv.conf", c.ID()) } delete(c.state.BindMounts, "/etc/resolv.conf") } - if path, ok := c.state.BindMounts["/etc/hosts"]; ok { - if err := os.Remove(path); err != nil && !os.IsNotExist(err) { + if hostsPath, ok := c.state.BindMounts["/etc/hosts"]; ok { + if err := os.Remove(hostsPath); err != nil && !os.IsNotExist(err) { return errors.Wrapf(err, "error removing container %s hosts", c.ID()) } delete(c.state.BindMounts, "/etc/hosts") @@ -968,10 +984,10 @@ func (c *Container) makeBindMounts() error { // generateResolvConf generates a containers resolv.conf func (c *Container) generateResolvConf() (string, error) { resolvConf := "/etc/resolv.conf" - for _, ns := range c.config.Spec.Linux.Namespaces { - if ns.Type == spec.NetworkNamespace { - if ns.Path != "" && !strings.HasPrefix(ns.Path, "/proc/") { - definedPath := filepath.Join("/etc/netns", filepath.Base(ns.Path), "resolv.conf") + for _, namespace := range c.config.Spec.Linux.Namespaces { + if namespace.Type == spec.NetworkNamespace { + if namespace.Path != "" && !strings.HasPrefix(namespace.Path, "/proc/") { + definedPath := filepath.Join("/etc/netns", filepath.Base(namespace.Path), "resolv.conf") _, err := os.Stat(definedPath) if err == nil { resolvConf = definedPath @@ -1096,10 +1112,10 @@ func (c *Container) generatePasswd() (string, error) { if c.config.User == "" { return "", nil } - spec := strings.SplitN(c.config.User, ":", 2) - userspec := spec[0] - if len(spec) > 1 { - groupspec = spec[1] + splitSpec := strings.SplitN(c.config.User, ":", 2) + userspec := splitSpec[0] + if len(splitSpec) > 1 { + groupspec = splitSpec[1] } // If a non numeric User, then don't generate passwd uid, err := strconv.ParseUint(userspec, 10, 32) @@ -1137,7 +1153,7 @@ func (c *Container) generatePasswd() (string, error) { if err != nil { return "", errors.Wrapf(err, "failed to create temporary passwd file") } - if os.Chmod(passwdFile, 0644); err != nil { + if err := os.Chmod(passwdFile, 0644); err != nil { return "", err } return passwdFile, nil diff --git a/libpod/events.go b/libpod/events.go index 13bb5bdde..be21e510a 100644 --- a/libpod/events.go +++ b/libpod/events.go @@ -1,7 +1,10 @@ package libpod import ( + "fmt" + "github.com/containers/libpod/libpod/events" + "github.com/pkg/errors" "github.com/sirupsen/logrus" ) @@ -79,3 +82,55 @@ func (r *Runtime) Events(options events.ReadOptions) error { } return eventer.Read(options) } + +// GetEvents reads the event log and returns events based on input filters +func (r *Runtime) GetEvents(filters []string) ([]*events.Event, error) { + var ( + logEvents []*events.Event + readErr error + ) + eventChannel := make(chan *events.Event) + options := events.ReadOptions{ + EventChannel: eventChannel, + Filters: filters, + FromStart: true, + Stream: false, + } + eventer, err := r.newEventer() + if err != nil { + return nil, err + } + go func() { + readErr = eventer.Read(options) + }() + if readErr != nil { + return nil, readErr + } + for e := range eventChannel { + logEvents = append(logEvents, e) + } + return logEvents, nil +} + +// GetLastContainerEvent takes a container name or ID and an event status and returns +// the last occurrence of the container event +func (r *Runtime) GetLastContainerEvent(nameOrID string, containerEvent events.Status) (*events.Event, error) { + // check to make sure the event.Status is valid + if _, err := events.StringToStatus(containerEvent.String()); err != nil { + return nil, err + } + filters := []string{ + fmt.Sprintf("container=%s", nameOrID), + fmt.Sprintf("event=%s", containerEvent), + "type=container", + } + containerEvents, err := r.GetEvents(filters) + if err != nil { + return nil, err + } + if len(containerEvents) < 1 { + return nil, errors.Wrapf(events.ErrEventNotFound, "%s not found", containerEvent.String()) + } + // return the last element in the slice + return containerEvents[len(containerEvents)-1], nil +} diff --git a/libpod/events/config.go b/libpod/events/config.go index 810988205..b9f01f3a5 100644 --- a/libpod/events/config.go +++ b/libpod/events/config.go @@ -2,6 +2,8 @@ package events import ( "time" + + "github.com/pkg/errors" ) // EventerType ... @@ -158,3 +160,12 @@ const ( // EventFilter for filtering events type EventFilter func(*Event) bool + +var ( + // ErrEventTypeBlank indicates the event log found something done by podman + // but it isnt likely an event + ErrEventTypeBlank = errors.New("event type blank") + + // ErrEventNotFound indicates that the event was not found in the event log + ErrEventNotFound = errors.New("unable to find event") +) diff --git a/libpod/events/events.go b/libpod/events/events.go index 1ec79bcd7..2bebff162 100644 --- a/libpod/events/events.go +++ b/libpod/events/events.go @@ -95,6 +95,8 @@ func StringToType(name string) (Type, error) { return System, nil case Volume.String(): return Volume, nil + case "": + return "", ErrEventTypeBlank } return "", errors.Errorf("unknown event type %q", name) } diff --git a/libpod/events/journal_linux.go b/libpod/events/journal_linux.go index 78a630e9a..d5bce4334 100644 --- a/libpod/events/journal_linux.go +++ b/libpod/events/journal_linux.go @@ -101,7 +101,9 @@ func (e EventJournalD) Read(options ReadOptions) error { // We can't decode this event. // Don't fail hard - that would make events unusable. // Instead, log and continue. - logrus.Errorf("Unable to decode event: %v", err) + if errors.Cause(err) != ErrEventTypeBlank { + logrus.Errorf("Unable to decode event: %v", err) + } continue } include := true diff --git a/libpod/image/pull.go b/libpod/image/pull.go index 644a9ae86..e5765febc 100644 --- a/libpod/image/pull.go +++ b/libpod/image/pull.go @@ -19,8 +19,8 @@ import ( "github.com/containers/image/types" "github.com/containers/libpod/libpod/events" "github.com/containers/libpod/pkg/registries" - multierror "github.com/hashicorp/go-multierror" - opentracing "github.com/opentracing/opentracing-go" + "github.com/hashicorp/go-multierror" + "github.com/opentracing/opentracing-go" "github.com/pkg/errors" "github.com/sirupsen/logrus" ) diff --git a/libpod/kube.go b/libpod/kube.go index 1622246d5..409937010 100644 --- a/libpod/kube.go +++ b/libpod/kube.go @@ -3,6 +3,7 @@ package libpod import ( "fmt" "math/rand" + "os" "strconv" "strings" "time" @@ -16,7 +17,6 @@ import ( "github.com/pkg/errors" "github.com/sirupsen/logrus" "k8s.io/api/core/v1" - "k8s.io/apimachinery/pkg/api/resource" v12 "k8s.io/apimachinery/pkg/apis/meta/v1" ) @@ -132,32 +132,43 @@ func (p *Pod) podWithContainers(containers []*Container, ports []v1.ContainerPor var ( podContainers []v1.Container ) + deDupPodVolumes := make(map[string]*v1.Volume) first := true for _, ctr := range containers { if !ctr.IsInfra() { - result, err := containerToV1Container(ctr) + ctr, volumes, err := containerToV1Container(ctr) if err != nil { return nil, err } // Since port bindings for the pod are handled by the // infra container, wipe them here. - result.Ports = nil + ctr.Ports = nil // We add the original port declarations from the libpod infra container // to the first kubernetes container description because otherwise we loose // the original container/port bindings. if first && len(ports) > 0 { - result.Ports = ports + ctr.Ports = ports first = false } - podContainers = append(podContainers, result) + podContainers = append(podContainers, ctr) + // Deduplicate volumes, so if containers in the pod share a volume, it's only + // listed in the volumes section once + for _, vol := range volumes { + deDupPodVolumes[vol.Name] = &vol + } } } - return addContainersToPodObject(podContainers, p.Name()), nil + podVolumes := make([]v1.Volume, 0, len(deDupPodVolumes)) + for _, vol := range deDupPodVolumes { + podVolumes = append(podVolumes, *vol) + } + + return addContainersAndVolumesToPodObject(podContainers, podVolumes, p.Name()), nil } -func addContainersToPodObject(containers []v1.Container, podName string) *v1.Pod { +func addContainersAndVolumesToPodObject(containers []v1.Container, volumes []v1.Volume, podName string) *v1.Pod { tm := v12.TypeMeta{ Kind: "Pod", APIVersion: "v1", @@ -177,6 +188,7 @@ func addContainersToPodObject(containers []v1.Container, podName string) *v1.Pod } ps := v1.PodSpec{ Containers: containers, + Volumes: volumes, } p := v1.Pod{ TypeMeta: tm, @@ -190,56 +202,58 @@ func addContainersToPodObject(containers []v1.Container, podName string) *v1.Pod // for a single container. we "insert" that container description in a pod. func simplePodWithV1Container(ctr *Container) (*v1.Pod, error) { var containers []v1.Container - result, err := containerToV1Container(ctr) + kubeCtr, kubeVols, err := containerToV1Container(ctr) if err != nil { return nil, err } - containers = append(containers, result) - return addContainersToPodObject(containers, ctr.Name()), nil + containers = append(containers, kubeCtr) + return addContainersAndVolumesToPodObject(containers, kubeVols, ctr.Name()), nil } // containerToV1Container converts information we know about a libpod container // to a V1.Container specification. -func containerToV1Container(c *Container) (v1.Container, error) { +func containerToV1Container(c *Container) (v1.Container, []v1.Volume, error) { kubeContainer := v1.Container{} + kubeVolumes := []v1.Volume{} kubeSec, err := generateKubeSecurityContext(c) if err != nil { - return kubeContainer, err + return kubeContainer, kubeVolumes, err } if len(c.config.Spec.Linux.Devices) > 0 { // TODO Enable when we can support devices and their names devices, err := generateKubeVolumeDeviceFromLinuxDevice(c.Spec().Linux.Devices) if err != nil { - return kubeContainer, err + return kubeContainer, kubeVolumes, err } kubeContainer.VolumeDevices = devices - return kubeContainer, errors.Wrapf(define.ErrNotImplemented, "linux devices") + return kubeContainer, kubeVolumes, errors.Wrapf(define.ErrNotImplemented, "linux devices") } if len(c.config.UserVolumes) > 0 { // TODO When we until we can resolve what the volume name should be, this is disabled // Volume names need to be coordinated "globally" in the kube files. - volumes, err := libpodMountsToKubeVolumeMounts(c) + volumeMounts, volumes, err := libpodMountsToKubeVolumeMounts(c) if err != nil { - return kubeContainer, err + return kubeContainer, kubeVolumes, err } - kubeContainer.VolumeMounts = volumes + kubeContainer.VolumeMounts = volumeMounts + kubeVolumes = append(kubeVolumes, volumes...) } envVariables, err := libpodEnvVarsToKubeEnvVars(c.config.Spec.Process.Env) if err != nil { - return kubeContainer, err + return kubeContainer, kubeVolumes, err } portmappings, err := c.PortMappings() if err != nil { - return kubeContainer, err + return kubeContainer, kubeVolumes, err } ports, err := ocicniPortMappingToContainerPort(portmappings) if err != nil { - return kubeContainer, err + return kubeContainer, kubeVolumes, err } containerCommands := c.Command() @@ -263,7 +277,7 @@ func containerToV1Container(c *Container) (v1.Container, error) { kubeContainer.StdinOnce = false kubeContainer.TTY = c.config.Spec.Process.Terminal - return kubeContainer, nil + return kubeContainer, kubeVolumes, nil } // ocicniPortMappingToContainerPort takes an ocicni portmapping and converts @@ -309,52 +323,82 @@ func libpodEnvVarsToKubeEnvVars(envs []string) ([]v1.EnvVar, error) { return envVars, nil } -// Is this worth it? -func libpodMaxAndMinToResourceList(c *Container) (v1.ResourceList, v1.ResourceList) { //nolint - // It does not appear we can properly calculate CPU resources from the information - // we know in libpod. Libpod knows CPUs by time, shares, etc. +// libpodMountsToKubeVolumeMounts converts the containers mounts to a struct kube understands +func libpodMountsToKubeVolumeMounts(c *Container) ([]v1.VolumeMount, []v1.Volume, error) { + var vms []v1.VolumeMount + var vos []v1.Volume - // We also only know about a memory limit; no memory minimum - maxResources := make(map[v1.ResourceName]resource.Quantity) - minResources := make(map[v1.ResourceName]resource.Quantity) - config := c.Config() - maxMem := config.Spec.Linux.Resources.Memory.Limit + // TjDO when named volumes are supported in play kube, also parse named volumes here + _, mounts := c.sortUserVolumes(c.config.Spec) + for _, m := range mounts { + vm, vo, err := generateKubeVolumeMount(m) + if err != nil { + return vms, vos, err + } + vms = append(vms, vm) + vos = append(vos, vo) + } + return vms, vos, nil +} - _ = maxMem +// generateKubeVolumeMount takes a user specfied mount and returns +// a kubernetes VolumeMount (to be added to the container) and a kubernetes Volume +// (to be added to the pod) +func generateKubeVolumeMount(m specs.Mount) (v1.VolumeMount, v1.Volume, error) { + vm := v1.VolumeMount{} + vo := v1.Volume{} - return maxResources, minResources + name, err := convertVolumePathToName(m.Source) + if err != nil { + return vm, vo, err + } + vm.Name = name + vm.MountPath = m.Destination + if util.StringInSlice("ro", m.Options) { + vm.ReadOnly = true + } + + vo.Name = name + vo.HostPath = &v1.HostPathVolumeSource{} + vo.HostPath.Path = m.Source + isDir, err := isHostPathDirectory(m.Source) + // neither a directory or a file lives here, default to creating a directory + // TODO should this be an error instead? + var hostPathType v1.HostPathType + if err != nil { + hostPathType = v1.HostPathDirectoryOrCreate + } else if isDir { + hostPathType = v1.HostPathDirectory + } else { + hostPathType = v1.HostPathFile + } + vo.HostPath.Type = &hostPathType + + return vm, vo, nil } -func generateKubeVolumeMount(hostSourcePath string, mounts []specs.Mount) (v1.VolumeMount, error) { - vm := v1.VolumeMount{} - for _, m := range mounts { - if m.Source == hostSourcePath { - // TODO Name is not provided and is required by Kube; therefore, this is disabled earlier - //vm.Name = - vm.MountPath = m.Source - vm.SubPath = m.Destination - if util.StringInSlice("ro", m.Options) { - vm.ReadOnly = true - } - return vm, nil - } +func isHostPathDirectory(hostPathSource string) (bool, error) { + info, err := os.Stat(hostPathSource) + if err != nil { + return false, err } - return vm, errors.New("unable to find mount source") + return info.Mode().IsDir(), nil } -// libpodMountsToKubeVolumeMounts converts the containers mounts to a struct kube understands -func libpodMountsToKubeVolumeMounts(c *Container) ([]v1.VolumeMount, error) { - // At this point, I dont think we can distinguish between the default - // volume mounts and user added ones. For now, we pass them all. - var vms []v1.VolumeMount - for _, hostSourcePath := range c.config.UserVolumes { - vm, err := generateKubeVolumeMount(hostSourcePath, c.config.Spec.Mounts) - if err != nil { - continue +func convertVolumePathToName(hostSourcePath string) (string, error) { + if len(hostSourcePath) == 0 { + return "", errors.Errorf("hostSourcePath must be specified to generate volume name") + } + if len(hostSourcePath) == 1 { + if hostSourcePath != "/" { + return "", errors.Errorf("hostSourcePath malformatted: %s", hostSourcePath) } - vms = append(vms, vm) + // add special case name + return "root", nil } - return vms, nil + // First, trim trailing slashes, then replace slashes with dashes. + // Thus, /mnt/data/ will become mnt-data + return strings.Replace(strings.Trim(hostSourcePath, "/"), "/", "-", -1), nil } func determineCapAddDropFromCapabilities(defaultCaps, containerCaps []string) *v1.Capabilities { @@ -366,16 +410,14 @@ func determineCapAddDropFromCapabilities(defaultCaps, containerCaps []string) *v // those indicate a dropped cap for _, capability := range defaultCaps { if !util.StringInSlice(capability, containerCaps) { - cap := v1.Capability(capability) - drop = append(drop, cap) + drop = append(drop, v1.Capability(capability)) } } // Find caps in the container but not in the defaults; those indicate // an added cap for _, capability := range containerCaps { if !util.StringInSlice(capability, defaultCaps) { - cap := v1.Capability(capability) - add = append(add, cap) + add = append(add, v1.Capability(capability)) } } diff --git a/libpod/lock/shm/shm_lock.go b/libpod/lock/shm/shm_lock.go index 37c8dea7d..322e92a8f 100644 --- a/libpod/lock/shm/shm_lock.go +++ b/libpod/lock/shm/shm_lock.go @@ -22,7 +22,7 @@ var ( // BitmapSize is the size of the bitmap used when managing SHM locks. // an SHM lock manager's max locks will be rounded up to a multiple of // this number. - BitmapSize uint32 = uint32(C.bitmap_size_c) + BitmapSize = uint32(C.bitmap_size_c) ) // SHMLocks is a struct enabling POSIX semaphore locking in a shared memory diff --git a/libpod/networking_linux.go b/libpod/networking_linux.go index 27585b8d5..d978bceed 100644 --- a/libpod/networking_linux.go +++ b/libpod/networking_linux.go @@ -294,14 +294,14 @@ func (r *Runtime) setupRootlessNetNS(ctr *Container) (err error) { return errors.Wrapf(err, "cannot shutdown the socket %s", apiSocket) } buf := make([]byte, 2048) - len, err := conn.Read(buf) + readLength, err := conn.Read(buf) if err != nil { return errors.Wrapf(err, "cannot read from control socket %s", apiSocket) } // if there is no 'error' key in the received JSON data, then the operation was // successful. var y map[string]interface{} - if err := json.Unmarshal(buf[0:len], &y); err != nil { + if err := json.Unmarshal(buf[0:readLength], &y); err != nil { return errors.Wrapf(err, "error parsing error status from slirp4netns") } if e, found := y["error"]; found { @@ -332,7 +332,9 @@ func (r *Runtime) setupNetNS(ctr *Container) (err error) { if err != nil { return errors.Wrapf(err, "cannot open %s", nsPath) } - mountPointFd.Close() + if err := mountPointFd.Close(); err != nil { + return err + } if err := unix.Mount(nsProcess, nsPath, "none", unix.MS_BIND, ""); err != nil { return errors.Wrapf(err, "cannot mount %s", nsPath) @@ -352,12 +354,12 @@ func (r *Runtime) setupNetNS(ctr *Container) (err error) { // Join an existing network namespace func joinNetNS(path string) (ns.NetNS, error) { - ns, err := ns.GetNS(path) + netNS, err := ns.GetNS(path) if err != nil { return nil, errors.Wrapf(err, "error retrieving network namespace at %s", path) } - return ns, nil + return netNS, nil } // Close a network namespace. diff --git a/libpod/oci.go b/libpod/oci.go index fdd783100..6aad79cdf 100644 --- a/libpod/oci.go +++ b/libpod/oci.go @@ -263,7 +263,9 @@ func (r *OCIRuntime) updateContainerStatus(ctr *Container, useRuntime bool) erro return errors.Wrapf(err, "error getting container %s state", ctr.ID()) } if strings.Contains(string(out), "does not exist") { - ctr.removeConmonFiles() + if err := ctr.removeConmonFiles(); err != nil { + logrus.Debugf("unable to remove conmon files for container %s", ctr.ID()) + } ctr.state.ExitCode = -1 ctr.state.FinishedTime = time.Now() ctr.state.State = define.ContainerStateExited @@ -273,7 +275,9 @@ func (r *OCIRuntime) updateContainerStatus(ctr *Container, useRuntime bool) erro } defer cmd.Wait() - errPipe.Close() + if err := errPipe.Close(); err != nil { + return err + } out, err := ioutil.ReadAll(outPipe) if err != nil { return errors.Wrapf(err, "error reading stdout: %s", ctr.ID()) @@ -433,8 +437,8 @@ func (r *OCIRuntime) execContainer(c *Container, cmd, capAdd, env []string, tty args = append(args, "--no-new-privs") } - for _, cap := range capAdd { - args = append(args, "--cap", cap) + for _, capabilityAdd := range capAdd { + args = append(args, "--cap", capabilityAdd) } for _, envVar := range env { @@ -475,7 +479,9 @@ func (r *OCIRuntime) execContainer(c *Container, cmd, capAdd, env []string, tty for fd := 3; fd < 3+preserveFDs; fd++ { // These fds were passed down to the runtime. Close them // and not interfere - os.NewFile(uintptr(fd), fmt.Sprintf("fd-%d", fd)).Close() + if err := os.NewFile(uintptr(fd), fmt.Sprintf("fd-%d", fd)).Close(); err != nil { + logrus.Debugf("unable to close file fd-%d", fd) + } } } @@ -484,7 +490,9 @@ func (r *OCIRuntime) execContainer(c *Container, cmd, capAdd, env []string, tty // checkpointContainer checkpoints the given container func (r *OCIRuntime) checkpointContainer(ctr *Container, options ContainerCheckpointOptions) error { - label.SetSocketLabel(ctr.ProcessLabel()) + if err := label.SetSocketLabel(ctr.ProcessLabel()); err != nil { + return err + } // imagePath is used by CRIU to store the actual checkpoint files imagePath := ctr.CheckpointPath() // workPath will be used to store dump.log and stats-dump diff --git a/libpod/oci_linux.go b/libpod/oci_linux.go index 24502ef4f..802f4311b 100644 --- a/libpod/oci_linux.go +++ b/libpod/oci_linux.go @@ -342,7 +342,9 @@ func (r *OCIRuntime) createOCIContainer(ctr *Container, cgroupParent string, res ) plabel, err = selinux.CurrentLabel() if err != nil { - childPipe.Close() + if err := childPipe.Close(); err != nil { + logrus.Errorf("failed to close child pipe: %q", err) + } return errors.Wrapf(err, "Failed to get current SELinux label") } diff --git a/libpod/options.go b/libpod/options.go index 78634e953..4f8bb42df 100644 --- a/libpod/options.go +++ b/libpod/options.go @@ -325,7 +325,7 @@ func WithMaxLogSize(limit int64) RuntimeOption { // WithNoPivotRoot sets the runtime to use MS_MOVE instead of PIVOT_ROOT when // starting containers. -func WithNoPivotRoot(noPivot bool) RuntimeOption { +func WithNoPivotRoot() RuntimeOption { return func(rt *Runtime) error { if rt.valid { return config2.ErrRuntimeFinalized diff --git a/libpod/runtime.go b/libpod/runtime.go index 6c61e15d3..53c9a1209 100644 --- a/libpod/runtime.go +++ b/libpod/runtime.go @@ -245,7 +245,7 @@ type RuntimeConfig struct { // 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"` + EventsLogFilePath string `toml:"-events_logfile_path"` //DetachKeys is the sequence of keys used to detach a container DetachKeys string `toml:"detach_keys"` } @@ -643,7 +643,9 @@ func newRuntimeFromConfig(ctx context.Context, userConfigPath string, options .. } if configPath != "" { - os.MkdirAll(filepath.Dir(configPath), 0755) + if err := os.MkdirAll(filepath.Dir(configPath), 0755); err != nil { + return nil, err + } file, err := os.OpenFile(configPath, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0666) if err != nil && !os.IsExist(err) { return nil, errors.Wrapf(err, "cannot open file %s", configPath) @@ -652,7 +654,9 @@ func newRuntimeFromConfig(ctx context.Context, userConfigPath string, options .. defer file.Close() enc := toml.NewEncoder(file) if err := enc.Encode(runtime.config); err != nil { - os.Remove(configPath) + if removeErr := os.Remove(configPath); removeErr != nil { + logrus.Debugf("unable to remove %s: %q", configPath, err) + } } } } diff --git a/libpod/runtime_ctr.go b/libpod/runtime_ctr.go index 683969118..ae9b3e5bc 100644 --- a/libpod/runtime_ctr.go +++ b/libpod/runtime_ctr.go @@ -52,7 +52,7 @@ func (r *Runtime) RestoreContainer(ctx context.Context, rSpec *spec.Spec, config if err != nil { return nil, errors.Wrapf(err, "error initializing container variables") } - return r.setupContainer(ctx, ctr, true) + return r.setupContainer(ctx, ctr) } func (r *Runtime) initContainerVariables(rSpec *spec.Spec, config *ContainerConfig) (c *Container, err error) { @@ -68,6 +68,7 @@ func (r *Runtime) initContainerVariables(rSpec *spec.Spec, config *ContainerConf ctr.config.ShmSize = DefaultShmSize } else { // This is a restore from an imported checkpoint + ctr.restoreFromCheckpoint = true if err := JSONDeepCopy(config, ctr.config); err != nil { return nil, errors.Wrapf(err, "error copying container config for restore") } @@ -119,10 +120,10 @@ func (r *Runtime) newContainer(ctx context.Context, rSpec *spec.Spec, options .. return nil, errors.Wrapf(err, "error running container create option") } } - return r.setupContainer(ctx, ctr, false) + return r.setupContainer(ctx, ctr) } -func (r *Runtime) setupContainer(ctx context.Context, ctr *Container, restore bool) (c *Container, err error) { +func (r *Runtime) setupContainer(ctx context.Context, ctr *Container) (c *Container, err error) { // Allocate a lock for the container lock, err := r.lockManager.AllocateLock() if err != nil { @@ -211,7 +212,7 @@ func (r *Runtime) setupContainer(ctx context.Context, ctr *Container, restore bo return nil, errors.Wrapf(config2.ErrInvalidArg, "unsupported CGroup manager: %s - cannot validate cgroup parent", r.config.CgroupManager) } - if restore { + if ctr.restoreFromCheckpoint { // Remove information about bind mount // for new container from imported checkpoint g := generate.Generator{Config: ctr.config.Spec} @@ -430,22 +431,17 @@ func (r *Runtime) removeContainer(ctx context.Context, c *Container, force bool, // If we're removing the pod, the container will be evicted // from the state elsewhere if !removePod { - if err := r.state.RemoveContainerFromPod(pod, c); err != nil { - if cleanupErr == nil { - cleanupErr = err - } else { - logrus.Errorf("removing container from pod: %v", err) - } - } - } - } else { - if err := r.state.RemoveContainer(c); err != nil { if cleanupErr == nil { cleanupErr = err } else { - logrus.Errorf("removing container: %v", err) + logrus.Errorf("removing container from pod: %v", err) } } + } else { + if err := r.state.RemoveContainer(c); err != nil { + cleanupErr = err + } + logrus.Errorf("removing container: %v", err) } // Set container as invalid so it can no longer be used diff --git a/libpod/runtime_migrate.go b/libpod/runtime_migrate.go index ad45579d3..c363991e6 100644 --- a/libpod/runtime_migrate.go +++ b/libpod/runtime_migrate.go @@ -37,7 +37,9 @@ func stopPauseProcess() error { if err := os.Remove(pausePidPath); err != nil { return errors.Wrapf(err, "cannot delete pause pid file %s", pausePidPath) } - syscall.Kill(pausePid, syscall.SIGKILL) + if err := syscall.Kill(pausePid, syscall.SIGKILL); err != nil { + return err + } } return nil } diff --git a/libpod/stats.go b/libpod/stats.go index eb5ed95c4..52af824bb 100644 --- a/libpod/stats.go +++ b/libpod/stats.go @@ -46,10 +46,6 @@ func (c *Container) GetContainerStats(previousStats *ContainerStats) (*Container return stats, errors.Wrapf(err, "unable to obtain cgroup stats") } conState := c.state.State - if err != nil { - return stats, errors.Wrapf(err, "unable to determine container state") - } - netStats, err := getContainerNetIO(c) if err != nil { return nil, err diff --git a/libpod/util.go b/libpod/util.go index b0c25074b..b60575264 100644 --- a/libpod/util.go +++ b/libpod/util.go @@ -9,8 +9,6 @@ import ( "strings" "time" - "github.com/containers/image/signature" - "github.com/containers/image/types" "github.com/containers/libpod/libpod/define" "github.com/fsnotify/fsnotify" spec "github.com/opencontainers/runtime-spec/specs-go" @@ -32,24 +30,6 @@ func FuncTimer(funcName string) { fmt.Printf("%s executed in %d ms\n", funcName, elapsed) } -// CopyStringStringMap deep copies a map[string]string and returns the result -func CopyStringStringMap(m map[string]string) map[string]string { - n := map[string]string{} - for k, v := range m { - n[k] = v - } - return n -} - -// GetPolicyContext creates a signature policy context for the given signature policy path -func GetPolicyContext(path string) (*signature.PolicyContext, error) { - policy, err := signature.DefaultPolicy(&types.SystemContext{SignaturePolicyPath: path}) - if err != nil { - return nil, err - } - return signature.NewPolicyContext(policy) -} - // RemoveScientificNotationFromFloat returns a float without any // scientific notation if the number has any. // golang does not handle conversion of float64s that have scientific |