diff options
40 files changed, 613 insertions, 105 deletions
diff --git a/Containerfile-testvol b/Containerfile-testvol deleted file mode 100644 index 6ff45064b..000000000 --- a/Containerfile-testvol +++ /dev/null @@ -1,10 +0,0 @@ -FROM golang:1.15-alpine AS build-img -COPY ./test/testvol/ /go/src/github.com/containers/podman/cmd/testvol/ -COPY ./vendor /go/src/github.com/containers/podman/vendor/ -WORKDIR /go/src/github.com/containers/podman -RUN go build -o /testvol ./cmd/testvol - -FROM alpine -COPY --from=build-img /testvol /usr/local/bin -WORKDIR / -ENTRYPOINT ["/usr/local/bin/testvol"] @@ -225,11 +225,11 @@ test/checkseccomp/checkseccomp: $(wildcard test/checkseccomp/*.go) .PHONY: test/testvol/testvol test/testvol/testvol: $(wildcard test/testvol/*.go) - $(GOCMD) build $(BUILDFLAGS) $(GO_LDFLAGS) '$(LDFLAGS_PODMAN)' -o $@ ./test/testvol + $(GOCMD) build -o $@ ./test/testvol -.PHONY: volume-plugin-test-image +.PHONY: volume-plugin-test-img volume-plugin-test-img: - podman build -t quay.io/libpod/volume-plugin-test-img -f Containerfile-testvol . + ./bin/podman build --network none -t quay.io/libpod/volume-plugin-test-img:$$(date +%Y%m%d) -f ./test/testvol/Containerfile . .PHONY: test/goecho/goecho test/goecho/goecho: $(wildcard test/goecho/*.go) diff --git a/cmd/podman/volumes/reload.go b/cmd/podman/volumes/reload.go new file mode 100644 index 000000000..d0d76fb88 --- /dev/null +++ b/cmd/podman/volumes/reload.go @@ -0,0 +1,52 @@ +package volumes + +import ( + "fmt" + + "github.com/containers/common/pkg/completion" + "github.com/containers/podman/v4/cmd/podman/registry" + "github.com/containers/podman/v4/cmd/podman/utils" + "github.com/containers/podman/v4/cmd/podman/validate" + "github.com/spf13/cobra" +) + +var ( + reloadDescription = `Check all configured volume plugins and update the libpod database with all available volumes. + + Existing volumes are also removed from the database when they are no longer present in the plugin.` + reloadCommand = &cobra.Command{ + Use: "reload", + Args: validate.NoArgs, + Short: "reload all volumes from volume plugins", + Long: reloadDescription, + RunE: reload, + ValidArgsFunction: completion.AutocompleteNone, + } +) + +func init() { + registry.Commands = append(registry.Commands, registry.CliCommand{ + Command: reloadCommand, + Parent: volumeCmd, + }) +} + +func reload(cmd *cobra.Command, args []string) error { + report, err := registry.ContainerEngine().VolumeReload(registry.Context()) + if err != nil { + return err + } + printReload("Added", report.Added) + printReload("Removed", report.Removed) + errs := (utils.OutputErrors)(report.Errors) + return errs.PrintErrors() +} + +func printReload(typ string, values []string) { + if len(values) > 0 { + fmt.Println(typ + ":") + for _, name := range values { + fmt.Println(name) + } + } +} diff --git a/docs/source/markdown/podman-volume-reload.1.md b/docs/source/markdown/podman-volume-reload.1.md new file mode 100644 index 000000000..5b9e9b9ac --- /dev/null +++ b/docs/source/markdown/podman-volume-reload.1.md @@ -0,0 +1,29 @@ +% podman-volume-reload(1) + +## NAME +podman\-volume\-reload - Reload all volumes from volumes plugins + +## SYNOPSIS +**podman volume reload** + +## DESCRIPTION + +**podman volume reload** checks all configured volume plugins and updates the libpod database with all available volumes. +Existing volumes are also removed from the database when they are no longer present in the plugin. + +This command it is best effort and cannot guarantee a perfect state because plugins can be modified from the outside at any time. + +Note: This command is not supported with podman-remote. + +## EXAMPLES + +``` +$ podman volume reload +Added: +vol6 +Removed: +t3 +``` + +## SEE ALSO +**[podman(1)](podman.1.md)**, **[podman-volume(1)](podman-volume.1.md)** diff --git a/docs/source/markdown/podman-volume.1.md b/docs/source/markdown/podman-volume.1.md index 476d58591..a437590b3 100644 --- a/docs/source/markdown/podman-volume.1.md +++ b/docs/source/markdown/podman-volume.1.md @@ -21,6 +21,7 @@ podman volume is a set of subcommands that manage volumes. | ls | [podman-volume-ls(1)](podman-volume-ls.1.md) | List all the available volumes. | | mount | [podman-volume-mount(1)](podman-volume-mount.1.md) | Mount a volume filesystem. | | prune | [podman-volume-prune(1)](podman-volume-prune.1.md) | Remove all unused volumes. | +| reload | [podman-volume-reload(1)](podman-volume-reload.1.md) | Reload all volumes from volumes plugins. | | rm | [podman-volume-rm(1)](podman-volume-rm.1.md) | Remove one or more volumes. | | unmount | [podman-volume-unmount(1)](podman-volume-unmount.1.md) | Unmount a volume. | diff --git a/libpod/container_exec.go b/libpod/container_exec.go index be00c6fbe..b112273d0 100644 --- a/libpod/container_exec.go +++ b/libpod/container_exec.go @@ -277,9 +277,13 @@ func (c *Container) ExecStart(sessionID string) error { return c.save() } +func (c *Container) ExecStartAndAttach(sessionID string, streams *define.AttachStreams, newSize *define.TerminalSize) error { + return c.execStartAndAttach(sessionID, streams, newSize, false) +} + // ExecStartAndAttach starts and attaches to an exec session in a container. // newSize resizes the tty to this size before the process is started, must be nil if the exec session has no tty -func (c *Container) ExecStartAndAttach(sessionID string, streams *define.AttachStreams, newSize *define.TerminalSize) error { +func (c *Container) execStartAndAttach(sessionID string, streams *define.AttachStreams, newSize *define.TerminalSize, isHealthcheck bool) error { if !c.batched { c.lock.Lock() defer c.lock.Unlock() @@ -315,7 +319,12 @@ func (c *Container) ExecStartAndAttach(sessionID string, streams *define.AttachS return err } - c.newContainerEvent(events.Exec) + if isHealthcheck { + c.newContainerEvent(events.HealthStatus) + } else { + c.newContainerEvent(events.Exec) + } + logrus.Debugf("Successfully started exec session %s in container %s", session.ID(), c.ID()) var lastErr error @@ -743,10 +752,14 @@ func (c *Container) ExecResize(sessionID string, newSize define.TerminalSize) er return c.ociRuntime.ExecAttachResize(c, sessionID, newSize) } +func (c *Container) Exec(config *ExecConfig, streams *define.AttachStreams, resize <-chan define.TerminalSize) (int, error) { + return c.exec(config, streams, resize, false) +} + // Exec emulates the old Libpod exec API, providing a single call to create, // run, and remove an exec session. Returns exit code and error. Exit code is // not guaranteed to be set sanely if error is not nil. -func (c *Container) Exec(config *ExecConfig, streams *define.AttachStreams, resize <-chan define.TerminalSize) (int, error) { +func (c *Container) exec(config *ExecConfig, streams *define.AttachStreams, resize <-chan define.TerminalSize, isHealthcheck bool) (int, error) { sessionID, err := c.ExecCreate(config) if err != nil { return -1, err @@ -780,7 +793,7 @@ func (c *Container) Exec(config *ExecConfig, streams *define.AttachStreams, resi }() } - if err := c.ExecStartAndAttach(sessionID, streams, size); err != nil { + if err := c.execStartAndAttach(sessionID, streams, size, isHealthcheck); err != nil { return -1, err } diff --git a/libpod/container_internal_linux.go b/libpod/container_internal_linux.go index 10f4eeec1..0f4bf0f55 100644 --- a/libpod/container_internal_linux.go +++ b/libpod/container_internal_linux.go @@ -1142,7 +1142,7 @@ func (c *Container) addCheckpointImageMetadata(importBuilder *buildah.Builder) e return fmt.Errorf("getting host info: %v", err) } - criuVersion, err := criu.GetCriuVestion() + criuVersion, err := criu.GetCriuVersion() if err != nil { return fmt.Errorf("getting criu version: %v", err) } diff --git a/libpod/define/volume_inspect.go b/libpod/define/volume_inspect.go index fac179176..aaa23b4fc 100644 --- a/libpod/define/volume_inspect.go +++ b/libpod/define/volume_inspect.go @@ -57,3 +57,9 @@ type InspectVolumeData struct { // UID/GID. NeedsChown bool `json:"NeedsChown,omitempty"` } + +type VolumeReload struct { + Added []string + Removed []string + Errors []error +} diff --git a/libpod/events.go b/libpod/events.go index 021b3b53c..bb50df92d 100644 --- a/libpod/events.go +++ b/libpod/events.go @@ -33,6 +33,16 @@ func (c *Container) newContainerEvent(status events.Status) { Attributes: c.Labels(), } + // if the current event is a HealthStatus event, we need to get the current + // status of the container to pass to the event + if status == events.HealthStatus { + containerHealthStatus, err := c.healthCheckStatus() + if err != nil { + e.HealthStatus = fmt.Sprintf("%v", err) + } + e.HealthStatus = containerHealthStatus + } + if err := c.runtime.eventer.Write(e); err != nil { logrus.Errorf("Unable to write pod event: %q", err) } diff --git a/libpod/events/config.go b/libpod/events/config.go index 2e7016136..a678baa2d 100644 --- a/libpod/events/config.go +++ b/libpod/events/config.go @@ -40,6 +40,8 @@ type Event struct { Time time.Time // Type of event that occurred Type Type + // Health status of the current container + HealthStatus string `json:"health_status,omitempty"` Details } @@ -141,6 +143,8 @@ const ( Exited Status = "died" // Export ... Export Status = "export" + // HealthStatus ... + HealthStatus Status = "health_status" // History ... History Status = "history" // Import ... diff --git a/libpod/events/events.go b/libpod/events/events.go index a30e0f1ca..a8001ab95 100644 --- a/libpod/events/events.go +++ b/libpod/events/events.go @@ -76,7 +76,7 @@ func (e *Event) ToHumanReadable(truncate bool) string { } switch e.Type { case Container, Pod: - humanFormat = fmt.Sprintf("%s %s %s %s (image=%s, name=%s", e.Time, e.Type, e.Status, id, e.Image, e.Name) + humanFormat = fmt.Sprintf("%s %s %s %s (image=%s, name=%s, health_status=%s", e.Time, e.Type, e.Status, id, e.Image, e.Name, e.HealthStatus) // check if the container has labels and add it to the output if len(e.Attributes) > 0 { for k, v := range e.Attributes { @@ -168,6 +168,8 @@ func StringToStatus(name string) (Status, error) { return Exited, nil case Export.String(): return Export, nil + case HealthStatus.String(): + return HealthStatus, nil case History.String(): return History, nil case Import.String(): diff --git a/libpod/events/journal_linux.go b/libpod/events/journal_linux.go index d21b60c68..036638d34 100644 --- a/libpod/events/journal_linux.go +++ b/libpod/events/journal_linux.go @@ -58,6 +58,7 @@ func (e EventJournalD) Write(ee Event) error { } m["PODMAN_LABELS"] = string(b) } + m["PODMAN_HEALTH_STATUS"] = ee.HealthStatus case Network: m["PODMAN_ID"] = ee.ID m["PODMAN_NETWORK_NAME"] = ee.Network @@ -213,6 +214,7 @@ func newEventFromJournalEntry(entry *sdjournal.JournalEntry) (*Event, error) { newEvent.Details = Details{Attributes: labels} } } + newEvent.HealthStatus = entry.Fields["PODMAN_HEALTH_STATUS"] case Network: newEvent.ID = entry.Fields["PODMAN_ID"] newEvent.Network = entry.Fields["PODMAN_NETWORK_NAME"] diff --git a/libpod/healthcheck.go b/libpod/healthcheck.go index bd77e98c6..95c70b60e 100644 --- a/libpod/healthcheck.go +++ b/libpod/healthcheck.go @@ -90,7 +90,7 @@ func (c *Container) runHealthCheck() (define.HealthCheckStatus, error) { hcResult := define.HealthCheckSuccess config := new(ExecConfig) config.Command = newCommand - exitCode, hcErr := c.Exec(config, streams, nil) + exitCode, hcErr := c.exec(config, streams, nil, true) if hcErr != nil { errCause := errors.Cause(hcErr) hcResult = define.HealthCheckFailure @@ -232,18 +232,27 @@ func (c *Container) getHealthCheckLog() (define.HealthCheckResults, error) { // HealthCheckStatus returns the current state of a container with a healthcheck func (c *Container) HealthCheckStatus() (string, error) { + c.lock.Lock() + defer c.lock.Unlock() + return c.healthCheckStatus() +} + +// Internal function to return the current state of a container with a healthcheck. +// This function does not lock the container. +func (c *Container) healthCheckStatus() (string, error) { if !c.HasHealthCheck() { return "", errors.Errorf("container %s has no defined healthcheck", c.ID()) } - c.lock.Lock() - defer c.lock.Unlock() + if err := c.syncContainer(); err != nil { return "", err } + results, err := c.getHealthCheckLog() if err != nil { return "", errors.Wrapf(err, "unable to get healthcheck log for %s", c.ID()) } + return results.Status, nil } diff --git a/libpod/plugin/volume_api.go b/libpod/plugin/volume_api.go index f997ccf22..2de7db32c 100644 --- a/libpod/plugin/volume_api.go +++ b/libpod/plugin/volume_api.go @@ -197,13 +197,13 @@ func (p *VolumePlugin) verifyReachable() error { // Send a request to the volume plugin for handling. // Callers *MUST* close the response when they are done. -func (p *VolumePlugin) sendRequest(toJSON interface{}, hasBody bool, endpoint string) (*http.Response, error) { +func (p *VolumePlugin) sendRequest(toJSON interface{}, endpoint string) (*http.Response, error) { var ( reqJSON []byte err error ) - if hasBody { + if toJSON != nil { reqJSON, err = json.Marshal(toJSON) if err != nil { return nil, errors.Wrapf(err, "error marshalling request JSON for volume plugin %s endpoint %s", p.Name, endpoint) @@ -274,7 +274,7 @@ func (p *VolumePlugin) CreateVolume(req *volume.CreateRequest) error { logrus.Infof("Creating volume %s using plugin %s", req.Name, p.Name) - resp, err := p.sendRequest(req, true, createPath) + resp, err := p.sendRequest(req, createPath) if err != nil { return err } @@ -291,7 +291,7 @@ func (p *VolumePlugin) ListVolumes() ([]*volume.Volume, error) { logrus.Infof("Listing volumes using plugin %s", p.Name) - resp, err := p.sendRequest(nil, false, listPath) + resp, err := p.sendRequest(nil, listPath) if err != nil { return nil, err } @@ -326,7 +326,7 @@ func (p *VolumePlugin) GetVolume(req *volume.GetRequest) (*volume.Volume, error) logrus.Infof("Getting volume %s using plugin %s", req.Name, p.Name) - resp, err := p.sendRequest(req, true, getPath) + resp, err := p.sendRequest(req, getPath) if err != nil { return nil, err } @@ -361,7 +361,7 @@ func (p *VolumePlugin) RemoveVolume(req *volume.RemoveRequest) error { logrus.Infof("Removing volume %s using plugin %s", req.Name, p.Name) - resp, err := p.sendRequest(req, true, removePath) + resp, err := p.sendRequest(req, removePath) if err != nil { return err } @@ -382,7 +382,7 @@ func (p *VolumePlugin) GetVolumePath(req *volume.PathRequest) (string, error) { logrus.Infof("Getting volume %s path using plugin %s", req.Name, p.Name) - resp, err := p.sendRequest(req, true, hostVirtualPath) + resp, err := p.sendRequest(req, hostVirtualPath) if err != nil { return "", err } @@ -419,7 +419,7 @@ func (p *VolumePlugin) MountVolume(req *volume.MountRequest) (string, error) { logrus.Infof("Mounting volume %s using plugin %s for container %s", req.Name, p.Name, req.ID) - resp, err := p.sendRequest(req, true, mountPath) + resp, err := p.sendRequest(req, mountPath) if err != nil { return "", err } @@ -455,7 +455,7 @@ func (p *VolumePlugin) UnmountVolume(req *volume.UnmountRequest) error { logrus.Infof("Unmounting volume %s using plugin %s for container %s", req.Name, p.Name, req.ID) - resp, err := p.sendRequest(req, true, unmountPath) + resp, err := p.sendRequest(req, unmountPath) if err != nil { return err } diff --git a/libpod/runtime_ctr.go b/libpod/runtime_ctr.go index a9ae9d1db..459514d47 100644 --- a/libpod/runtime_ctr.go +++ b/libpod/runtime_ctr.go @@ -502,7 +502,7 @@ func (r *Runtime) setupContainer(ctx context.Context, ctr *Container) (_ *Contai volOptions = append(volOptions, parsedOptions...) } } - newVol, err := r.newVolume(volOptions...) + newVol, err := r.newVolume(false, volOptions...) if err != nil { return nil, errors.Wrapf(err, "error creating named volume %q", vol.Name) } @@ -805,7 +805,7 @@ func (r *Runtime) removeContainer(ctx context.Context, c *Container, force, remo if !volume.Anonymous() { continue } - if err := runtime.removeVolume(ctx, volume, false, timeout); err != nil && errors.Cause(err) != define.ErrNoSuchVolume { + if err := runtime.removeVolume(ctx, volume, false, timeout, false); err != nil && errors.Cause(err) != define.ErrNoSuchVolume { if errors.Cause(err) == define.ErrVolumeBeingUsed { // Ignore error, since podman will report original error volumesFrom, _ := c.volumesFrom() @@ -963,7 +963,7 @@ func (r *Runtime) evictContainer(ctx context.Context, idOrName string, removeVol if !volume.Anonymous() { continue } - if err := r.removeVolume(ctx, volume, false, timeout); err != nil && err != define.ErrNoSuchVolume && err != define.ErrVolumeBeingUsed { + if err := r.removeVolume(ctx, volume, false, timeout, false); err != nil && err != define.ErrNoSuchVolume && err != define.ErrVolumeBeingUsed { logrus.Errorf("Cleaning up volume (%s): %v", v, err) } } diff --git a/libpod/runtime_pod_linux.go b/libpod/runtime_pod_linux.go index d75ac2971..00017ca21 100644 --- a/libpod/runtime_pod_linux.go +++ b/libpod/runtime_pod_linux.go @@ -315,7 +315,7 @@ func (r *Runtime) removePod(ctx context.Context, p *Pod, removeCtrs, force bool, if !volume.Anonymous() { continue } - if err := r.removeVolume(ctx, volume, false, timeout); err != nil { + if err := r.removeVolume(ctx, volume, false, timeout, false); err != nil { if errors.Cause(err) == define.ErrNoSuchVolume || errors.Cause(err) == define.ErrVolumeRemoved { continue } diff --git a/libpod/runtime_volume.go b/libpod/runtime_volume.go index 21bf8aefc..6872db21d 100644 --- a/libpod/runtime_volume.go +++ b/libpod/runtime_volume.go @@ -33,7 +33,7 @@ func (r *Runtime) RemoveVolume(ctx context.Context, v *Volume, force bool, timeo return nil } } - return r.removeVolume(ctx, v, force, timeout) + return r.removeVolume(ctx, v, force, timeout, false) } // GetVolume retrieves a volume given its full name. diff --git a/libpod/runtime_volume_linux.go b/libpod/runtime_volume_linux.go index f8788e183..877f3a1fd 100644 --- a/libpod/runtime_volume_linux.go +++ b/libpod/runtime_volume_linux.go @@ -5,6 +5,7 @@ package libpod import ( "context" + "fmt" "os" "path/filepath" "strings" @@ -25,11 +26,13 @@ func (r *Runtime) NewVolume(ctx context.Context, options ...VolumeCreateOption) if !r.valid { return nil, define.ErrRuntimeStopped } - return r.newVolume(options...) + return r.newVolume(false, options...) } -// newVolume creates a new empty volume -func (r *Runtime) newVolume(options ...VolumeCreateOption) (_ *Volume, deferredErr error) { +// newVolume creates a new empty volume with the given options. +// The createPluginVolume can be set to true to make it not create the volume in the volume plugin, +// this is required for the UpdateVolumePlugins() function. If you are not sure set this to false. +func (r *Runtime) newVolume(noCreatePluginVolume bool, options ...VolumeCreateOption) (_ *Volume, deferredErr error) { volume := newVolume(r) for _, option := range options { if err := option(volume); err != nil { @@ -83,7 +86,7 @@ func (r *Runtime) newVolume(options ...VolumeCreateOption) (_ *Volume, deferredE // Now we get conditional: we either need to make the volume in the // volume plugin, or on disk if not using a plugin. - if volume.plugin != nil { + if volume.plugin != nil && !noCreatePluginVolume { // We can't chown, or relabel, or similar the path the volume is // using, because it's not managed by us. // TODO: reevaluate this once we actually have volume plugins in @@ -164,6 +167,85 @@ func (r *Runtime) newVolume(options ...VolumeCreateOption) (_ *Volume, deferredE return volume, nil } +// UpdateVolumePlugins reads all volumes from all configured volume plugins and +// imports them into the libpod db. It also checks if existing libpod volumes +// are removed in the plugin, in this case we try to remove it from libpod. +// On errors we continue and try to do as much as possible. all errors are +// returned as array in the returned struct. +// This function has many race conditions, it is best effort but cannot guarantee +// a perfect state since plugins can be modified from the outside at any time. +func (r *Runtime) UpdateVolumePlugins(ctx context.Context) *define.VolumeReload { + var ( + added []string + removed []string + errs []error + allPluginVolumes = map[string]struct{}{} + ) + + for driverName, socket := range r.config.Engine.VolumePlugins { + driver, err := volplugin.GetVolumePlugin(driverName, socket) + if err != nil { + errs = append(errs, err) + continue + } + vols, err := driver.ListVolumes() + if err != nil { + errs = append(errs, fmt.Errorf("failed to read volumes from plugin %q: %w", driverName, err)) + continue + } + for _, vol := range vols { + allPluginVolumes[vol.Name] = struct{}{} + if _, err := r.newVolume(true, WithVolumeName(vol.Name), WithVolumeDriver(driverName)); err != nil { + // If the volume exists this is not an error, just ignore it and log. It is very likely + // that the volume from the plugin was already in our db. + if !errors.Is(err, define.ErrVolumeExists) { + errs = append(errs, err) + continue + } + logrus.Infof("Volume %q already exists: %v", vol.Name, err) + continue + } + added = append(added, vol.Name) + } + } + + libpodVolumes, err := r.state.AllVolumes() + if err != nil { + errs = append(errs, fmt.Errorf("cannot delete dangling plugin volumes: failed to read libpod volumes: %w", err)) + } + for _, vol := range libpodVolumes { + if vol.UsesVolumeDriver() { + if _, ok := allPluginVolumes[vol.Name()]; !ok { + // The volume is no longer in the plugin, lets remove it from the libpod db. + if err := r.removeVolume(ctx, vol, false, nil, true); err != nil { + if errors.Is(err, define.ErrVolumeBeingUsed) { + // Volume is still used by at least one container. This is very bad, + // the plugin no longer has this but we still need it. + errs = append(errs, fmt.Errorf("volume was removed from the plugin %q but containers still require it: %w", vol.config.Driver, err)) + continue + } + if errors.Is(err, define.ErrNoSuchVolume) || errors.Is(err, define.ErrVolumeRemoved) || errors.Is(err, define.ErrMissingPlugin) { + // Volume was already removed, no problem just ignore it and continue. + continue + } + + // some other error + errs = append(errs, err) + continue + } + // Volume was successfully removed + removed = append(removed, vol.Name()) + } + } + } + + return &define.VolumeReload{ + Added: added, + Removed: removed, + Errors: errs, + } +} + // makeVolumeInPluginIfNotExist makes a volume in the given volume plugin if it // does not already exist. func makeVolumeInPluginIfNotExist(name string, options map[string]string, plugin *volplugin.VolumePlugin) error { @@ -197,8 +279,10 @@ func makeVolumeInPluginIfNotExist(name string, options map[string]string, plugin return nil } -// removeVolume removes the specified volume from state as well tears down its mountpoint and storage -func (r *Runtime) removeVolume(ctx context.Context, v *Volume, force bool, timeout *uint) error { +// removeVolume removes the specified volume from state as well tears down its mountpoint and storage. +// ignoreVolumePlugin is used to only remove the volume from the db and not the plugin, +// this is required when the volume was already removed from the plugin, i.e. in UpdateVolumePlugins(). +func (r *Runtime) removeVolume(ctx context.Context, v *Volume, force bool, timeout *uint, ignoreVolumePlugin bool) error { if !v.valid { if ok, _ := r.state.HasVolume(v.Name()); !ok { return nil @@ -263,7 +347,7 @@ func (r *Runtime) removeVolume(ctx context.Context, v *Volume, force bool, timeo var removalErr error // If we use a volume plugin, we need to remove from the plugin. - if v.UsesVolumeDriver() { + if v.UsesVolumeDriver() && !ignoreVolumePlugin { canRemove := true // Do we have a volume driver? diff --git a/pkg/criu/criu.go b/pkg/criu/criu.go index 6570159d7..0b0bbff5d 100644 --- a/pkg/criu/criu.go +++ b/pkg/criu/criu.go @@ -1,51 +1,8 @@ -//go:build linux -// +build linux - package criu -import ( - "github.com/checkpoint-restore/go-criu/v5" - "github.com/checkpoint-restore/go-criu/v5/rpc" - - "google.golang.org/protobuf/proto" -) - // MinCriuVersion for Podman at least CRIU 3.11 is required const MinCriuVersion = 31100 // PodCriuVersion is the version of CRIU needed for // checkpointing and restoring containers out of and into Pods. const PodCriuVersion = 31600 - -// CheckForCriu uses CRIU's go bindings to check if the CRIU -// binary exists and if it at least the version Podman needs. -func CheckForCriu(version int) bool { - c := criu.MakeCriu() - result, err := c.IsCriuAtLeast(version) - if err != nil { - return false - } - return result -} - -func GetCriuVestion() (int, error) { - c := criu.MakeCriu() - return c.GetCriuVersion() -} - -func MemTrack() bool { - features, err := criu.MakeCriu().FeatureCheck( - &rpc.CriuFeatures{ - MemTrack: proto.Bool(true), - }, - ) - if err != nil { - return false - } - - if features == nil || features.MemTrack == nil { - return false - } - - return *features.MemTrack -} diff --git a/pkg/criu/criu_linux.go b/pkg/criu/criu_linux.go new file mode 100644 index 000000000..c28e23fd7 --- /dev/null +++ b/pkg/criu/criu_linux.go @@ -0,0 +1,44 @@ +//go:build linux +// +build linux + +package criu + +import ( + "github.com/checkpoint-restore/go-criu/v5" + "github.com/checkpoint-restore/go-criu/v5/rpc" + + "google.golang.org/protobuf/proto" +) + +// CheckForCriu uses CRIU's go bindings to check if the CRIU +// binary exists and if it at least the version Podman needs. +func CheckForCriu(version int) bool { + c := criu.MakeCriu() + result, err := c.IsCriuAtLeast(version) + if err != nil { + return false + } + return result +} + +func MemTrack() bool { + features, err := criu.MakeCriu().FeatureCheck( + &rpc.CriuFeatures{ + MemTrack: proto.Bool(true), + }, + ) + if err != nil { + return false + } + + if features == nil || features.MemTrack == nil { + return false + } + + return *features.MemTrack +} + +func GetCriuVersion() (int, error) { + c := criu.MakeCriu() + return c.GetCriuVersion() +} diff --git a/pkg/criu/criu_unsupported.go b/pkg/criu/criu_unsupported.go index 3e3ed9c6c..437482a0e 100644 --- a/pkg/criu/criu_unsupported.go +++ b/pkg/criu/criu_unsupported.go @@ -3,6 +3,14 @@ package criu +func CheckForCriu(version int) bool { + return false +} + func MemTrack() bool { return false } + +func GetCriuVersion() (int, error) { + return MinCriuVersion, nil +} diff --git a/pkg/domain/entities/engine_container.go b/pkg/domain/entities/engine_container.go index df42876f6..e4eb808b4 100644 --- a/pkg/domain/entities/engine_container.go +++ b/pkg/domain/entities/engine_container.go @@ -104,4 +104,5 @@ type ContainerEngine interface { VolumePrune(ctx context.Context, options VolumePruneOptions) ([]*reports.PruneReport, error) VolumeRm(ctx context.Context, namesOrIds []string, opts VolumeRmOptions) ([]*VolumeRmReport, error) VolumeUnmount(ctx context.Context, namesOrIds []string) ([]*VolumeUnmountReport, error) + VolumeReload(ctx context.Context) (*VolumeReloadReport, error) } diff --git a/pkg/domain/entities/events.go b/pkg/domain/entities/events.go index d8ba0f1d3..de218b285 100644 --- a/pkg/domain/entities/events.go +++ b/pkg/domain/entities/events.go @@ -14,6 +14,7 @@ type Event struct { // TODO: it would be nice to have full control over the types at some // point and fork such Docker types. dockerEvents.Message + HealthStatus string } // ConvertToLibpodEvent converts an entities event to a libpod one. @@ -44,6 +45,7 @@ func ConvertToLibpodEvent(e Event) *libpodEvents.Event { Status: status, Time: time.Unix(0, e.TimeNano), Type: t, + HealthStatus: e.HealthStatus, Details: libpodEvents.Details{ Attributes: details, }, @@ -59,7 +61,7 @@ func ConvertToEntitiesEvent(e libpodEvents.Event) *Event { attributes["image"] = e.Image attributes["name"] = e.Name attributes["containerExitCode"] = strconv.Itoa(e.ContainerExitCode) - return &Event{dockerEvents.Message{ + message := dockerEvents.Message{ // Compatibility with clients that still look for deprecated API elements Status: e.Status.String(), ID: e.ID, @@ -73,5 +75,9 @@ func ConvertToEntitiesEvent(e libpodEvents.Event) *Event { Scope: "local", Time: e.Time.Unix(), TimeNano: e.Time.UnixNano(), - }} + } + return &Event{ + message, + e.HealthStatus, + } } diff --git a/pkg/domain/entities/volumes.go b/pkg/domain/entities/volumes.go index 556df16c1..9a06b2238 100644 --- a/pkg/domain/entities/volumes.go +++ b/pkg/domain/entities/volumes.go @@ -54,6 +54,11 @@ type VolumeListReport struct { VolumeConfigResponse } +// VolumeReloadReport describes the response from reload volume plugins +type VolumeReloadReport struct { + define.VolumeReload +} + /* * Docker API compatibility types */ diff --git a/pkg/domain/filters/volumes.go b/pkg/domain/filters/volumes.go index e88bd4228..a18e6332c 100644 --- a/pkg/domain/filters/volumes.go +++ b/pkg/domain/filters/volumes.go @@ -2,6 +2,7 @@ package filters import ( "net/url" + "regexp" "strings" "github.com/containers/podman/v4/libpod" @@ -15,9 +16,12 @@ func GenerateVolumeFilters(filters url.Values) ([]libpod.VolumeFilter, error) { for _, val := range v { switch filter { case "name": - nameVal := val + nameRegexp, err := regexp.Compile(val) + if err != nil { + return nil, err + } vf = append(vf, func(v *libpod.Volume) bool { - return nameVal == v.Name() + return nameRegexp.MatchString(v.Name()) }) case "driver": driverVal := val diff --git a/pkg/domain/infra/abi/volumes.go b/pkg/domain/infra/abi/volumes.go index a9c53c140..1186d8e81 100644 --- a/pkg/domain/infra/abi/volumes.go +++ b/pkg/domain/infra/abi/volumes.go @@ -211,3 +211,8 @@ func (ic *ContainerEngine) VolumeUnmount(ctx context.Context, nameOrIDs []string return reports, nil } + +func (ic *ContainerEngine) VolumeReload(ctx context.Context) (*entities.VolumeReloadReport, error) { + report := ic.Libpod.UpdateVolumePlugins(ctx) + return &entities.VolumeReloadReport{VolumeReload: *report}, nil +} diff --git a/pkg/domain/infra/tunnel/volumes.go b/pkg/domain/infra/tunnel/volumes.go index 33e090148..6ec35e836 100644 --- a/pkg/domain/infra/tunnel/volumes.go +++ b/pkg/domain/infra/tunnel/volumes.go @@ -108,3 +108,7 @@ func (ic *ContainerEngine) VolumeMount(ctx context.Context, nameOrIDs []string) func (ic *ContainerEngine) VolumeUnmount(ctx context.Context, nameOrIDs []string) ([]*entities.VolumeUnmountReport, error) { return nil, errors.New("unmounting volumes is not supported for remote clients") } + +func (ic *ContainerEngine) VolumeReload(ctx context.Context) (*entities.VolumeReloadReport, error) { + return nil, errors.New("volume reload is not supported for remote clients") +} diff --git a/pkg/machine/qemu/machine.go b/pkg/machine/qemu/machine.go index 5094345ea..3a1495021 100644 --- a/pkg/machine/qemu/machine.go +++ b/pkg/machine/qemu/machine.go @@ -1074,6 +1074,7 @@ func getVMInfos() ([]*machine.ListResponse, error) { listEntry.RemoteUsername = vm.RemoteUsername listEntry.IdentityPath = vm.IdentityPath listEntry.CreatedAt = vm.Created + listEntry.Starting = vm.Starting if listEntry.CreatedAt.IsZero() { listEntry.CreatedAt = time.Now() @@ -1087,6 +1088,7 @@ func getVMInfos() ([]*machine.ListResponse, error) { if err != nil { return err } + listEntry.Running = state == machine.Running if !vm.LastUp.IsZero() { // this means we have already written a time to the config listEntry.LastUp = vm.LastUp @@ -1097,12 +1099,6 @@ func getVMInfos() ([]*machine.ListResponse, error) { return err } } - switch state { - case machine.Running: - listEntry.Running = true - case machine.Starting: - listEntry.Starting = true - } listed = append(listed, listEntry) } diff --git a/test/apiv2/27-containersEvents.at b/test/apiv2/27-containersEvents.at index a86f2e353..e0a66e0ac 100644 --- a/test/apiv2/27-containersEvents.at +++ b/test/apiv2/27-containersEvents.at @@ -18,6 +18,10 @@ t GET "libpod/events?stream=false&since=$START" 200 \ 'select(.status | contains("died")).Action=died' \ 'select(.status | contains("died")).Actor.Attributes.containerExitCode=1' +t GET "libpod/events?stream=false&since=$START" 200 \ + 'select(.status | contains("start")).Action=start' \ + 'select(.status | contains("start")).HealthStatus='\ + # compat api, uses status=die (#12643) t GET "events?stream=false&since=$START" 200 \ 'select(.status | contains("start")).Action=start' \ diff --git a/test/e2e/config.go b/test/e2e/config.go index 2ca8e2a15..fbcc9dfff 100644 --- a/test/e2e/config.go +++ b/test/e2e/config.go @@ -15,7 +15,7 @@ var ( healthcheck = "quay.io/libpod/alpine_healthcheck:latest" ImageCacheDir = "/tmp/podman/imagecachedir" fedoraToolbox = "registry.fedoraproject.org/fedora-toolbox:36" - volumeTest = "quay.io/libpod/volume-plugin-test-img:latest" + volumeTest = "quay.io/libpod/volume-plugin-test-img:20220623" // This image has seccomp profiles that blocks all syscalls. // The intention behind blocking all syscalls is to prevent diff --git a/test/e2e/events_test.go b/test/e2e/events_test.go index 725118ab0..528fa143d 100644 --- a/test/e2e/events_test.go +++ b/test/e2e/events_test.go @@ -216,4 +216,25 @@ var _ = Describe("Podman events", func() { Expect(result.OutputToString()).To(ContainSubstring("create")) }) + It("podman events health_status generated", func() { + session := podmanTest.Podman([]string{"run", "--name", "test-hc", "-dt", "--health-cmd", "echo working", "busybox"}) + session.WaitWithDefaultTimeout() + Expect(session).Should(Exit(0)) + + for i := 0; i < 5; i++ { + hc := podmanTest.Podman([]string{"healthcheck", "run", "test-hc"}) + hc.WaitWithDefaultTimeout() + exitCode := hc.ExitCode() + if exitCode == 0 || i == 4 { + break + } + time.Sleep(1 * time.Second) + } + + result := podmanTest.Podman([]string{"events", "--stream=false", "--filter", "event=health_status"}) + result.WaitWithDefaultTimeout() + Expect(result).Should(Exit(0)) + Expect(len(result.OutputToStringArray())).To(BeNumerically(">=", 1), "Number of health_status events") + }) + }) diff --git a/test/e2e/volume_ls_test.go b/test/e2e/volume_ls_test.go index 19f87fb8a..dcfb13f4e 100644 --- a/test/e2e/volume_ls_test.go +++ b/test/e2e/volume_ls_test.go @@ -152,6 +152,37 @@ var _ = Describe("Podman volume ls", func() { Expect(lsDangling).Should(Exit(0)) Expect(lsDangling.OutputToString()).To(ContainSubstring(volName1)) }) + + It("podman ls volume with --filter name", func() { + volName1 := "volume1" + session := podmanTest.Podman([]string{"volume", "create", volName1}) + session.WaitWithDefaultTimeout() + Expect(session).Should(Exit(0)) + + volName2 := "volume2" + session2 := podmanTest.Podman([]string{"volume", "create", volName2}) + session2.WaitWithDefaultTimeout() + Expect(session2).Should(Exit(0)) + + session = podmanTest.Podman([]string{"volume", "ls", "--filter", "name=volume1*"}) + session.WaitWithDefaultTimeout() + Expect(session).Should(Exit(0)) + Expect(session.OutputToStringArray()).To(HaveLen(3)) + Expect(session.OutputToStringArray()[1]).To(ContainSubstring(volName1)) + Expect(session.OutputToStringArray()[2]).To(ContainSubstring(volName2)) + + session = podmanTest.Podman([]string{"volume", "ls", "--filter", "name=volumex"}) + session.WaitWithDefaultTimeout() + Expect(session).Should(Exit(0)) + Expect(session.OutputToStringArray()).To(BeEmpty()) + + session = podmanTest.Podman([]string{"volume", "ls", "--filter", "name=volume1"}) + session.WaitWithDefaultTimeout() + Expect(session).Should(Exit(0)) + Expect(session.OutputToStringArray()).To(HaveLen(2)) + Expect(session.OutputToStringArray()[1]).To(ContainSubstring(volName1)) + }) + It("podman ls volume with multiple --filter flag", func() { session := podmanTest.Podman([]string{"volume", "create", "--label", "foo=bar", "myvol"}) volName := session.OutputToString() diff --git a/test/e2e/volume_plugin_test.go b/test/e2e/volume_plugin_test.go index 4700afdb5..b585f8dd8 100644 --- a/test/e2e/volume_plugin_test.go +++ b/test/e2e/volume_plugin_test.go @@ -6,6 +6,7 @@ import ( "path/filepath" . "github.com/containers/podman/v4/test/utils" + "github.com/containers/storage/pkg/stringid" . "github.com/onsi/ginkgo" . "github.com/onsi/gomega" . "github.com/onsi/gomega/gexec" @@ -188,4 +189,71 @@ var _ = Describe("Podman volume plugins", func() { rmAll.WaitWithDefaultTimeout() Expect(rmAll).Should(Exit(0)) }) + + It("podman volume reload", func() { + podmanTest.AddImageToRWStore(volumeTest) + + confFile := filepath.Join(podmanTest.TempDir, "containers.conf") + err := os.WriteFile(confFile, []byte(`[engine] +[engine.volume_plugins] +testvol5 = "/run/docker/plugins/testvol5.sock"`), 0o644) + Expect(err).ToNot(HaveOccurred()) + os.Setenv("CONTAINERS_CONF", confFile) + + pluginStatePath := filepath.Join(podmanTest.TempDir, "volumes") + err = os.Mkdir(pluginStatePath, 0755) + Expect(err).ToNot(HaveOccurred()) + + // Keep this distinct within tests to avoid multiple tests using the same plugin. + pluginName := "testvol5" + ctrName := "pluginCtr" + plugin := podmanTest.Podman([]string{"run", "--name", ctrName, "--security-opt", "label=disable", "-v", "/run/docker/plugins:/run/docker/plugins", + "-v", fmt.Sprintf("%v:%v", pluginStatePath, pluginStatePath), "-d", volumeTest, "--sock-name", pluginName, "--path", pluginStatePath}) + plugin.WaitWithDefaultTimeout() + Expect(plugin).Should(Exit(0)) + + localvol := "local-" + stringid.GenerateNonCryptoID() + // create local volume + session := podmanTest.Podman([]string{"volume", "create", localvol}) + session.WaitWithDefaultTimeout() + Expect(session).To(Exit(0)) + + vol1 := "vol1-" + stringid.GenerateNonCryptoID() + session = podmanTest.Podman([]string{"volume", "create", "--driver", pluginName, vol1}) + session.WaitWithDefaultTimeout() + Expect(session).To(Exit(0)) + + // now create volume in plugin without podman + vol2 := "vol2-" + stringid.GenerateNonCryptoID() + plugin = podmanTest.Podman([]string{"exec", ctrName, "/usr/local/bin/testvol", "--sock-name", pluginName, "create", vol2}) + plugin.WaitWithDefaultTimeout() + Expect(plugin).Should(Exit(0)) + + session = podmanTest.Podman([]string{"volume", "ls", "-q"}) + session.WaitWithDefaultTimeout() + Expect(session).To(Exit(0)) + Expect(session.OutputToStringArray()).To(ContainElements(localvol, vol1)) + Expect(session.ErrorToString()).To(Equal("")) // make sure no errors are shown + + plugin = podmanTest.Podman([]string{"exec", ctrName, "/usr/local/bin/testvol", "--sock-name", pluginName, "remove", vol1}) + plugin.WaitWithDefaultTimeout() + Expect(plugin).Should(Exit(0)) + + // now reload volumes from plugins + session = podmanTest.Podman([]string{"volume", "reload"}) + session.WaitWithDefaultTimeout() + Expect(session).To(Exit(0)) + Expect(string(session.Out.Contents())).To(Equal(fmt.Sprintf(`Added: +%s +Removed: +%s +`, vol2, vol1))) + Expect(session.ErrorToString()).To(Equal("")) // make sure no errors are shown + + session = podmanTest.Podman([]string{"volume", "ls", "-q"}) + session.WaitWithDefaultTimeout() + Expect(session).To(Exit(0)) + Expect(session.OutputToStringArray()).To(ContainElements(localvol, vol2)) + Expect(session.ErrorToString()).To(Equal("")) // make no errors are shown + }) }) diff --git a/test/system/160-volumes.bats b/test/system/160-volumes.bats index 797883ec6..da60112a0 100644 --- a/test/system/160-volumes.bats +++ b/test/system/160-volumes.bats @@ -64,6 +64,29 @@ function teardown() { } +# Filter volumes by name +@test "podman volume filter --name" { + suffix=$(random_string) + prefix="volume" + + for i in 1 2; do + myvolume=${prefix}_${i}_${suffix} + run_podman volume create $myvolume + is "$output" "$myvolume" "output from volume create $i" + done + + run_podman volume ls --filter name=${prefix}_1.+ --format "{{.Name}}" + is "$output" "${prefix}_1_${suffix}" "--filter name=${prefix}_1.+ shows only one volume" + + # The _1* is intentional as asterisk has different meaning in glob and regexp. Make sure this is regexp + run_podman volume ls --filter name=${prefix}_1* --format "{{.Name}}" + is "$output" "${prefix}_1_${suffix}.*${prefix}_2_${suffix}.*" "--filter name=${prefix}_1* shows ${prefix}_1_${suffix} and ${prefix}_2_${suffix}" + + for i in 1 2; do + run_podman volume rm ${prefix}_${i}_${suffix} + done +} + # Named volumes @test "podman volume create / run" { myvolume=myvol$(random_string) diff --git a/test/testvol/Containerfile b/test/testvol/Containerfile new file mode 100644 index 000000000..32448f5a9 --- /dev/null +++ b/test/testvol/Containerfile @@ -0,0 +1,9 @@ +FROM docker.io/library/golang:1.18-alpine AS build-img +COPY ./ /go/src/github.com/containers/podman/ +WORKDIR /go/src/github.com/containers/podman +RUN GO111MODULE=off go build -o /testvol ./test/testvol + +FROM alpine +COPY --from=build-img /testvol /usr/local/bin +WORKDIR / +ENTRYPOINT ["/usr/local/bin/testvol", "serve"] diff --git a/test/testvol/create.go b/test/testvol/create.go new file mode 100644 index 000000000..d29300f0b --- /dev/null +++ b/test/testvol/create.go @@ -0,0 +1,26 @@ +package main + +import ( + pluginapi "github.com/docker/go-plugins-helpers/volume" + "github.com/spf13/cobra" +) + +var createCmd = &cobra.Command{ + Use: "create NAME", + Short: "create a volume", + Long: `Create a volume in the volume plugin listening on --sock-name`, + Args: cobra.ExactArgs(1), + RunE: func(cmd *cobra.Command, args []string) error { + return createVol(config.sockName, args[0]) + }, +} + +func createVol(sockName, volName string) error { + plugin, err := getPlugin(sockName) + if err != nil { + return err + } + createReq := new(pluginapi.CreateRequest) + createReq.Name = volName + return plugin.CreateVolume(createReq) +} diff --git a/test/testvol/list.go b/test/testvol/list.go new file mode 100644 index 000000000..fea615a70 --- /dev/null +++ b/test/testvol/list.go @@ -0,0 +1,32 @@ +package main + +import ( + "fmt" + + "github.com/spf13/cobra" +) + +var listCmd = &cobra.Command{ + Use: "list", + Short: "list all volumes", + Long: `List all volumes from the volume plugin listening on --sock-name`, + Args: cobra.NoArgs, + RunE: func(cmd *cobra.Command, args []string) error { + return listVol(config.sockName) + }, +} + +func listVol(sockName string) error { + plugin, err := getPlugin(sockName) + if err != nil { + return err + } + vols, err := plugin.ListVolumes() + if err != nil { + return err + } + for _, vol := range vols { + fmt.Println(vol.Name) + } + return nil +} diff --git a/test/testvol/main.go b/test/testvol/main.go index 30ab365b3..99c6fb694 100644 --- a/test/testvol/main.go +++ b/test/testvol/main.go @@ -14,13 +14,20 @@ import ( ) var rootCmd = &cobra.Command{ - Use: "testvol", - Short: "testvol - volume plugin for Podman", + Use: "testvol", + Short: "testvol - volume plugin for Podman testing", + PersistentPreRunE: before, + SilenceUsage: true, +} + +var serveCmd = &cobra.Command{ + Use: "serve", + Short: "serve the volume plugin on the unix socket", Long: `Creates simple directory volumes using the Volume Plugin API for testing volume plugin functionality`, + Args: cobra.NoArgs, RunE: func(cmd *cobra.Command, args []string) error { return startServer(config.sockName) }, - PersistentPreRunE: before, } // Configuration for the volume plugin @@ -37,9 +44,12 @@ var config = cliConfig{ } func init() { - rootCmd.Flags().StringVar(&config.sockName, "sock-name", config.sockName, "Name of unix socket for plugin") - rootCmd.Flags().StringVar(&config.path, "path", "", "Path to initialize state and mount points") + rootCmd.PersistentFlags().StringVar(&config.sockName, "sock-name", config.sockName, "Name of unix socket for plugin") rootCmd.PersistentFlags().StringVar(&config.logLevel, "log-level", config.logLevel, "Log messages including and over the specified level: debug, info, warn, error, fatal, panic") + + serveCmd.Flags().StringVar(&config.path, "path", "", "Path to initialize state and mount points") + + rootCmd.AddCommand(serveCmd, createCmd, removeCmd, listCmd) } func before(cmd *cobra.Command, args []string) error { @@ -59,11 +69,8 @@ func before(cmd *cobra.Command, args []string) error { func main() { if err := rootCmd.Execute(); err != nil { - logrus.Errorf("Running volume plugin: %v", err) os.Exit(1) } - - os.Exit(0) } // startServer runs the HTTP server and responds to requests diff --git a/test/testvol/remove.go b/test/testvol/remove.go new file mode 100644 index 000000000..2839b0b50 --- /dev/null +++ b/test/testvol/remove.go @@ -0,0 +1,26 @@ +package main + +import ( + pluginapi "github.com/docker/go-plugins-helpers/volume" + "github.com/spf13/cobra" +) + +var removeCmd = &cobra.Command{ + Use: "remove NAME", + Short: "remove a volume", + Long: `Remove a volume in the volume plugin listening on --sock-name`, + Args: cobra.ExactArgs(1), + RunE: func(cmd *cobra.Command, args []string) error { + return removeVol(config.sockName, args[0]) + }, +} + +func removeVol(sockName, volName string) error { + plugin, err := getPlugin(sockName) + if err != nil { + return err + } + removeReq := new(pluginapi.RemoveRequest) + removeReq.Name = volName + return plugin.RemoveVolume(removeReq) +} diff --git a/test/testvol/util.go b/test/testvol/util.go new file mode 100644 index 000000000..7a0aeba86 --- /dev/null +++ b/test/testvol/util.go @@ -0,0 +1,29 @@ +package main + +import ( + "path/filepath" + "strings" + + "github.com/containers/podman/v4/libpod/plugin" +) + +const pluginSockDir = "/run/docker/plugins" + +func getSocketPath(pathOrName string) string { + if filepath.IsAbs(pathOrName) { + return pathOrName + } + + // only a name join it with the default path + return filepath.Join(pluginSockDir, pathOrName+".sock") +} + +func getPluginName(pathOrName string) string { + return strings.TrimSuffix(filepath.Base(pathOrName), ".sock") +} + +func getPlugin(sockNameOrPath string) (*plugin.VolumePlugin, error) { + path := getSocketPath(sockNameOrPath) + name := getPluginName(sockNameOrPath) + return plugin.GetVolumePlugin(name, path) +} |