diff options
Diffstat (limited to 'pkg/domain/infra/abi/containers.go')
-rw-r--r-- | pkg/domain/infra/abi/containers.go | 606 |
1 files changed, 597 insertions, 9 deletions
diff --git a/pkg/domain/infra/abi/containers.go b/pkg/domain/infra/abi/containers.go index d4c5ac311..c9df72f2d 100644 --- a/pkg/domain/infra/abi/containers.go +++ b/pkg/domain/infra/abi/containers.go @@ -4,21 +4,65 @@ package abi import ( "context" + "fmt" "io/ioutil" + "os" + "strconv" "strings" + "sync" + + lpfilters "github.com/containers/libpod/libpod/filters" "github.com/containers/buildah" + "github.com/containers/common/pkg/config" "github.com/containers/image/v5/manifest" "github.com/containers/libpod/libpod" "github.com/containers/libpod/libpod/define" + "github.com/containers/libpod/libpod/events" "github.com/containers/libpod/libpod/image" - "github.com/containers/libpod/pkg/adapter/shortcuts" + "github.com/containers/libpod/libpod/logs" + "github.com/containers/libpod/pkg/checkpoint" "github.com/containers/libpod/pkg/domain/entities" + "github.com/containers/libpod/pkg/domain/infra/abi/terminal" + "github.com/containers/libpod/pkg/ps" + "github.com/containers/libpod/pkg/rootless" "github.com/containers/libpod/pkg/signal" + "github.com/containers/libpod/pkg/specgen" + "github.com/containers/libpod/pkg/specgen/generate" + "github.com/containers/storage" "github.com/pkg/errors" "github.com/sirupsen/logrus" ) +// getContainersByContext gets pods whether all, latest, or a slice of names/ids +// is specified. +func getContainersByContext(all, latest bool, names []string, runtime *libpod.Runtime) (ctrs []*libpod.Container, err error) { + var ctr *libpod.Container + ctrs = []*libpod.Container{} + + switch { + case all: + ctrs, err = runtime.GetAllContainers() + case latest: + ctr, err = runtime.GetLatestContainer() + ctrs = append(ctrs, ctr) + default: + for _, n := range names { + ctr, e := runtime.LookupContainer(n) + if e != nil { + // Log all errors here, so callers don't need to. + logrus.Debugf("Error looking up container %q: %v", n, e) + if err == nil { + err = e + } + } else { + ctrs = append(ctrs, ctr) + } + } + } + return +} + // TODO: Should return *entities.ContainerExistsReport, error func (ic *ContainerEngine) ContainerExists(ctx context.Context, nameOrId string) (*entities.BoolReport, error) { _, err := ic.Libpod.LookupContainer(nameOrId) @@ -32,7 +76,7 @@ func (ic *ContainerEngine) ContainerWait(ctx context.Context, namesOrIds []strin var ( responses []entities.WaitReport ) - ctrs, err := shortcuts.GetContainersByContext(false, options.Latest, namesOrIds, ic.Libpod) + ctrs, err := getContainersByContext(false, options.Latest, namesOrIds, ic.Libpod) if err != nil { return nil, err } @@ -58,7 +102,7 @@ func (ic *ContainerEngine) ContainerPause(ctx context.Context, namesOrIds []stri if options.All { ctrs, err = ic.Libpod.GetAllContainers() } else { - ctrs, err = shortcuts.GetContainersByContext(false, false, namesOrIds, ic.Libpod) + ctrs, err = getContainersByContext(false, false, namesOrIds, ic.Libpod) } if err != nil { return nil, err @@ -79,7 +123,7 @@ func (ic *ContainerEngine) ContainerUnpause(ctx context.Context, namesOrIds []st if options.All { ctrs, err = ic.Libpod.GetAllContainers() } else { - ctrs, err = shortcuts.GetContainersByContext(false, false, namesOrIds, ic.Libpod) + ctrs, err = getContainersByContext(false, false, namesOrIds, ic.Libpod) } if err != nil { return nil, err @@ -103,7 +147,7 @@ func (ic *ContainerEngine) ContainerStop(ctx context.Context, namesOrIds []strin id := strings.Split(string(content), "\n")[0] names = append(names, id) } - ctrs, err := shortcuts.GetContainersByContext(options.All, options.Latest, names, ic.Libpod) + ctrs, err := getContainersByContext(options.All, options.Latest, names, ic.Libpod) if err != nil && !(options.Ignore && errors.Cause(err) == define.ErrNoSuchCtr) { return nil, err } @@ -131,6 +175,28 @@ func (ic *ContainerEngine) ContainerStop(ctx context.Context, namesOrIds []strin return reports, nil } +func (ic *ContainerEngine) ContainerPrune(ctx context.Context, options entities.ContainerPruneOptions) (*entities.ContainerPruneReport, error) { + var filterFuncs []libpod.ContainerFilter + for k, v := range options.Filters { + for _, val := range v { + generatedFunc, err := lpfilters.GenerateContainerFilterFuncs(k, val, ic.Libpod) + if err != nil { + return nil, err + } + filterFuncs = append(filterFuncs, generatedFunc) + } + } + prunedContainers, pruneErrors, err := ic.Libpod.PruneContainers(filterFuncs) + if err != nil { + return nil, err + } + report := entities.ContainerPruneReport{ + ID: prunedContainers, + Err: pruneErrors, + } + return &report, nil +} + func (ic *ContainerEngine) ContainerKill(ctx context.Context, namesOrIds []string, options entities.KillOptions) ([]*entities.KillReport, error) { var ( reports []*entities.KillReport @@ -139,7 +205,7 @@ func (ic *ContainerEngine) ContainerKill(ctx context.Context, namesOrIds []strin if err != nil { return nil, err } - ctrs, err := shortcuts.GetContainersByContext(options.All, options.Latest, namesOrIds, ic.Libpod) + ctrs, err := getContainersByContext(options.All, options.Latest, namesOrIds, ic.Libpod) if err != nil { return nil, err } @@ -155,7 +221,7 @@ func (ic *ContainerEngine) ContainerRestart(ctx context.Context, namesOrIds []st var ( reports []*entities.RestartReport ) - ctrs, err := shortcuts.GetContainersByContext(options.All, options.Latest, namesOrIds, ic.Libpod) + ctrs, err := getContainersByContext(options.All, options.Latest, namesOrIds, ic.Libpod) if err != nil { return nil, err } @@ -197,7 +263,7 @@ func (ic *ContainerEngine) ContainerRm(ctx context.Context, namesOrIds []string, names = append(names, id) } - ctrs, err := shortcuts.GetContainersByContext(options.All, options.Latest, names, ic.Libpod) + ctrs, err := getContainersByContext(options.All, options.Latest, names, ic.Libpod) if err != nil && !(options.Ignore && errors.Cause(err) == define.ErrNoSuchCtr) { // Failed to get containers. If force is specified, get the containers ID // and evict them @@ -245,7 +311,7 @@ func (ic *ContainerEngine) ContainerRm(ctx context.Context, namesOrIds []string, func (ic *ContainerEngine) ContainerInspect(ctx context.Context, namesOrIds []string, options entities.InspectOptions) ([]*entities.ContainerInspectReport, error) { var reports []*entities.ContainerInspectReport - ctrs, err := shortcuts.GetContainersByContext(false, options.Latest, namesOrIds, ic.Libpod) + ctrs, err := getContainersByContext(false, options.Latest, namesOrIds, ic.Libpod) if err != nil { return nil, err } @@ -333,3 +399,525 @@ func (ic *ContainerEngine) ContainerExport(ctx context.Context, nameOrId string, } return ctr.Export(options.Output) } + +func (ic *ContainerEngine) ContainerCheckpoint(ctx context.Context, namesOrIds []string, options entities.CheckpointOptions) ([]*entities.CheckpointReport, error) { + var ( + err error + cons []*libpod.Container + reports []*entities.CheckpointReport + ) + checkOpts := libpod.ContainerCheckpointOptions{ + Keep: options.Keep, + TCPEstablished: options.TCPEstablished, + TargetFile: options.Export, + IgnoreRootfs: options.IgnoreRootFS, + } + + if options.All { + running := func(c *libpod.Container) bool { + state, _ := c.State() + return state == define.ContainerStateRunning + } + cons, err = ic.Libpod.GetContainers(running) + } else { + cons, err = getContainersByContext(false, options.Latest, namesOrIds, ic.Libpod) + } + if err != nil { + return nil, err + } + for _, con := range cons { + err = con.Checkpoint(ctx, checkOpts) + reports = append(reports, &entities.CheckpointReport{ + Err: err, + Id: con.ID(), + }) + } + return reports, nil +} + +func (ic *ContainerEngine) ContainerRestore(ctx context.Context, namesOrIds []string, options entities.RestoreOptions) ([]*entities.RestoreReport, error) { + var ( + cons []*libpod.Container + err error + filterFuncs []libpod.ContainerFilter + reports []*entities.RestoreReport + ) + + restoreOptions := libpod.ContainerCheckpointOptions{ + Keep: options.Keep, + TCPEstablished: options.TCPEstablished, + TargetFile: options.Import, + Name: options.Name, + IgnoreRootfs: options.IgnoreRootFS, + IgnoreStaticIP: options.IgnoreStaticIP, + IgnoreStaticMAC: options.IgnoreStaticMAC, + } + + filterFuncs = append(filterFuncs, func(c *libpod.Container) bool { + state, _ := c.State() + return state == define.ContainerStateExited + }) + + switch { + case options.Import != "": + cons, err = checkpoint.CRImportCheckpoint(ctx, ic.Libpod, options.Import, options.Name) + case options.All: + cons, err = ic.Libpod.GetContainers(filterFuncs...) + default: + cons, err = getContainersByContext(false, options.Latest, namesOrIds, ic.Libpod) + } + if err != nil { + return nil, err + } + for _, con := range cons { + err := con.Restore(ctx, restoreOptions) + reports = append(reports, &entities.RestoreReport{ + Err: err, + Id: con.ID(), + }) + } + return reports, nil +} + +func (ic *ContainerEngine) ContainerCreate(ctx context.Context, s *specgen.SpecGenerator) (*entities.ContainerCreateReport, error) { + if err := generate.CompleteSpec(ctx, ic.Libpod, s); err != nil { + return nil, err + } + ctr, err := generate.MakeContainer(ic.Libpod, s) + if err != nil { + return nil, err + } + return &entities.ContainerCreateReport{Id: ctr.ID()}, nil +} + +func (ic *ContainerEngine) ContainerAttach(ctx context.Context, nameOrId string, options entities.AttachOptions) error { + ctrs, err := getContainersByContext(false, options.Latest, []string{nameOrId}, ic.Libpod) + if err != nil { + return err + } + ctr := ctrs[0] + conState, err := ctr.State() + if err != nil { + return errors.Wrapf(err, "unable to determine state of %s", ctr.ID()) + } + if conState != define.ContainerStateRunning { + return errors.Errorf("you can only attach to running containers") + } + + // If the container is in a pod, also set to recursively start dependencies + if err := terminal.StartAttachCtr(ctx, ctr, options.Stdin, options.Stderr, options.Stdin, options.DetachKeys, options.SigProxy, false, ctr.PodID() != ""); err != nil && errors.Cause(err) != define.ErrDetach { + return errors.Wrapf(err, "error attaching to container %s", ctr.ID()) + } + return nil +} + +func (ic *ContainerEngine) ContainerExec(ctx context.Context, nameOrId string, options entities.ExecOptions) (int, error) { + ec := define.ExecErrorCodeGeneric + if options.PreserveFDs > 0 { + entries, err := ioutil.ReadDir("/proc/self/fd") + if err != nil { + return ec, errors.Wrapf(err, "unable to read /proc/self/fd") + } + + m := make(map[int]bool) + for _, e := range entries { + i, err := strconv.Atoi(e.Name()) + if err != nil { + return ec, errors.Wrapf(err, "cannot parse %s in /proc/self/fd", e.Name()) + } + m[i] = true + } + + for i := 3; i < 3+int(options.PreserveFDs); i++ { + if _, found := m[i]; !found { + return ec, errors.New("invalid --preserve-fds=N specified. Not enough FDs available") + } + } + } + ctrs, err := getContainersByContext(false, options.Latest, []string{nameOrId}, ic.Libpod) + if err != nil { + return ec, err + } + ctr := ctrs[0] + ec, err = terminal.ExecAttachCtr(ctx, ctr, options.Tty, options.Privileged, options.Envs, options.Cmd, options.User, options.WorkDir, &options.Streams, options.PreserveFDs, options.DetachKeys) + return define.TranslateExecErrorToExitCode(ec, err), err +} + +func (ic *ContainerEngine) ContainerStart(ctx context.Context, namesOrIds []string, options entities.ContainerStartOptions) ([]*entities.ContainerStartReport, error) { + var reports []*entities.ContainerStartReport + var exitCode = define.ExecErrorCodeGeneric + ctrs, err := getContainersByContext(false, options.Latest, namesOrIds, ic.Libpod) + if err != nil { + return nil, err + } + // There can only be one container if attach was used + for _, ctr := range ctrs { + ctrState, err := ctr.State() + if err != nil { + return nil, err + } + ctrRunning := ctrState == define.ContainerStateRunning + + if options.Attach { + err = terminal.StartAttachCtr(ctx, ctr, options.Stdout, options.Stderr, options.Stdin, options.DetachKeys, options.SigProxy, !ctrRunning, ctr.PodID() != "") + if errors.Cause(err) == define.ErrDetach { + // User manually detached + // Exit cleanly immediately + reports = append(reports, &entities.ContainerStartReport{ + Id: ctr.ID(), + Err: nil, + ExitCode: 0, + }) + return reports, nil + } + + if errors.Cause(err) == define.ErrWillDeadlock { + logrus.Debugf("Deadlock error: %v", err) + reports = append(reports, &entities.ContainerStartReport{ + Id: ctr.ID(), + Err: err, + ExitCode: define.ExitCode(err), + }) + return reports, errors.Errorf("attempting to start container %s would cause a deadlock; please run 'podman system renumber' to resolve", ctr.ID()) + } + + if ctrRunning { + reports = append(reports, &entities.ContainerStartReport{ + Id: ctr.ID(), + Err: nil, + ExitCode: 0, + }) + return reports, err + } + + if err != nil { + reports = append(reports, &entities.ContainerStartReport{ + Id: ctr.ID(), + Err: err, + ExitCode: exitCode, + }) + return reports, errors.Wrapf(err, "unable to start container %s", ctr.ID()) + } + + if ecode, err := ctr.Wait(); err != nil { + if errors.Cause(err) == define.ErrNoSuchCtr { + // Check events + event, err := ic.Libpod.GetLastContainerEvent(ctr.ID(), events.Exited) + if err != nil { + logrus.Errorf("Cannot get exit code: %v", err) + exitCode = define.ExecErrorCodeNotFound + } else { + exitCode = event.ContainerExitCode + } + } + } else { + exitCode = int(ecode) + } + reports = append(reports, &entities.ContainerStartReport{ + Id: ctr.ID(), + Err: err, + ExitCode: exitCode, + }) + return reports, nil + } // end attach + + // Start the container if it's not running already. + if !ctrRunning { + // Handle non-attach start + // If the container is in a pod, also set to recursively start dependencies + report := &entities.ContainerStartReport{ + Id: ctr.ID(), + ExitCode: 125, + } + if err := ctr.Start(ctx, ctr.PodID() != ""); err != nil { + // if lastError != nil { + // fmt.Fprintln(os.Stderr, lastError) + // } + report.Err = err + if errors.Cause(err) == define.ErrWillDeadlock { + report.Err = errors.Wrapf(err, "please run 'podman system renumber' to resolve deadlocks") + reports = append(reports, report) + continue + } + report.Err = errors.Wrapf(err, "unable to start container %q", ctr.ID()) + reports = append(reports, report) + continue + } + report.ExitCode = 0 + reports = append(reports, report) + } + } + return reports, nil +} + +func (ic *ContainerEngine) ContainerList(ctx context.Context, options entities.ContainerListOptions) ([]entities.ListContainer, error) { + return ps.GetContainerLists(ic.Libpod, options) +} + +// ContainerDiff provides changes to given container +func (ic *ContainerEngine) ContainerDiff(ctx context.Context, nameOrId string, opts entities.DiffOptions) (*entities.DiffReport, error) { + if opts.Latest { + ctnr, err := ic.Libpod.GetLatestContainer() + if err != nil { + return nil, errors.Wrap(err, "unable to get latest container") + } + nameOrId = ctnr.ID() + } + changes, err := ic.Libpod.GetDiff("", nameOrId) + return &entities.DiffReport{Changes: changes}, err +} + +func (ic *ContainerEngine) ContainerRun(ctx context.Context, opts entities.ContainerRunOptions) (*entities.ContainerRunReport, error) { + if err := generate.CompleteSpec(ctx, ic.Libpod, opts.Spec); err != nil { + return nil, err + } + ctr, err := generate.MakeContainer(ic.Libpod, opts.Spec) + if err != nil { + return nil, err + } + + var joinPod bool + if len(ctr.PodID()) > 0 { + joinPod = true + } + report := entities.ContainerRunReport{Id: ctr.ID()} + + if logrus.GetLevel() == logrus.DebugLevel { + cgroupPath, err := ctr.CGroupPath() + if err == nil { + logrus.Debugf("container %q has CgroupParent %q", ctr.ID(), cgroupPath) + } + } + if opts.Detach { + // if the container was created as part of a pod, also start its dependencies, if any. + if err := ctr.Start(ctx, joinPod); err != nil { + // This means the command did not exist + report.ExitCode = define.ExitCode(err) + return &report, err + } + + return &report, nil + } + + // if the container was created as part of a pod, also start its dependencies, if any. + if err := terminal.StartAttachCtr(ctx, ctr, opts.OutputStream, opts.ErrorStream, opts.InputStream, opts.DetachKeys, opts.SigProxy, true, joinPod); err != nil { + // We've manually detached from the container + // Do not perform cleanup, or wait for container exit code + // Just exit immediately + if errors.Cause(err) == define.ErrDetach { + report.ExitCode = 0 + return &report, nil + } + if opts.Rm { + if deleteError := ic.Libpod.RemoveContainer(ctx, ctr, true, false); deleteError != nil { + logrus.Debugf("unable to remove container %s after failing to start and attach to it", ctr.ID()) + } + } + if errors.Cause(err) == define.ErrWillDeadlock { + logrus.Debugf("Deadlock error on %q: %v", ctr.ID(), err) + report.ExitCode = define.ExitCode(err) + return &report, errors.Errorf("attempting to start container %s would cause a deadlock; please run 'podman system renumber' to resolve", ctr.ID()) + } + report.ExitCode = define.ExitCode(err) + return &report, err + } + + if ecode, err := ctr.Wait(); err != nil { + if errors.Cause(err) == define.ErrNoSuchCtr { + // Check events + event, err := ic.Libpod.GetLastContainerEvent(ctr.ID(), events.Exited) + if err != nil { + logrus.Errorf("Cannot get exit code: %v", err) + report.ExitCode = define.ExecErrorCodeNotFound + } else { + report.ExitCode = event.ContainerExitCode + } + } + } else { + report.ExitCode = int(ecode) + } + return &report, nil +} + +func (ic *ContainerEngine) ContainerLogs(ctx context.Context, containers []string, options entities.ContainerLogsOptions) error { + if options.Writer == nil { + return errors.New("no io.Writer set for container logs") + } + + var wg sync.WaitGroup + + ctrs, err := getContainersByContext(false, options.Latest, containers, ic.Libpod) + if err != nil { + return err + } + + logOpts := &logs.LogOptions{ + Multi: len(ctrs) > 1, + Details: options.Details, + Follow: options.Follow, + Since: options.Since, + Tail: options.Tail, + Timestamps: options.Timestamps, + UseName: options.Names, + WaitGroup: &wg, + } + + chSize := len(ctrs) * int(options.Tail) + if chSize <= 0 { + chSize = 1 + } + logChannel := make(chan *logs.LogLine, chSize) + + if err := ic.Libpod.Log(ctrs, logOpts, logChannel); err != nil { + return err + } + + go func() { + wg.Wait() + close(logChannel) + }() + + for line := range logChannel { + fmt.Fprintln(options.Writer, line.String(logOpts)) + } + + return nil +} + +func (ic *ContainerEngine) ContainerCleanup(ctx context.Context, namesOrIds []string, options entities.ContainerCleanupOptions) ([]*entities.ContainerCleanupReport, error) { + var reports []*entities.ContainerCleanupReport + ctrs, err := getContainersByContext(options.All, options.Latest, namesOrIds, ic.Libpod) + if err != nil { + return nil, err + } + for _, ctr := range ctrs { + var err error + report := entities.ContainerCleanupReport{Id: ctr.ID()} + if options.Remove { + err = ic.Libpod.RemoveContainer(ctx, ctr, false, true) + if err != nil { + report.RmErr = errors.Wrapf(err, "failed to cleanup and remove container %v", ctr.ID()) + } + } else { + err := ctr.Cleanup(ctx) + if err != nil { + report.CleanErr = errors.Wrapf(err, "failed to cleanup container %v", ctr.ID()) + } + } + + if options.RemoveImage { + _, imageName := ctr.Image() + ctrImage, err := ic.Libpod.ImageRuntime().NewFromLocal(imageName) + if err != nil { + report.RmiErr = err + reports = append(reports, &report) + continue + } + _, err = ic.Libpod.RemoveImage(ctx, ctrImage, false) + report.RmiErr = err + } + reports = append(reports, &report) + } + return reports, nil +} + +func (ic *ContainerEngine) ContainerInit(ctx context.Context, namesOrIds []string, options entities.ContainerInitOptions) ([]*entities.ContainerInitReport, error) { + var reports []*entities.ContainerInitReport + ctrs, err := getContainersByContext(options.All, options.Latest, namesOrIds, ic.Libpod) + if err != nil { + return nil, err + } + for _, ctr := range ctrs { + report := entities.ContainerInitReport{Id: ctr.ID()} + report.Err = ctr.Init(ctx) + reports = append(reports, &report) + } + return reports, nil +} + +func (ic *ContainerEngine) ContainerMount(ctx context.Context, nameOrIds []string, options entities.ContainerMountOptions) ([]*entities.ContainerMountReport, error) { + if os.Geteuid() != 0 { + if driver := ic.Libpod.StorageConfig().GraphDriverName; driver != "vfs" { + // Do not allow to mount a graphdriver that is not vfs if we are creating the userns as part + // of the mount command. + return nil, fmt.Errorf("cannot mount using driver %s in rootless mode", driver) + } + + became, ret, err := rootless.BecomeRootInUserNS("") + if err != nil { + return nil, err + } + if became { + os.Exit(ret) + } + } + var reports []*entities.ContainerMountReport + ctrs, err := getContainersByContext(options.All, options.Latest, nameOrIds, ic.Libpod) + if err != nil { + return nil, err + } + for _, ctr := range ctrs { + report := entities.ContainerMountReport{Id: ctr.ID()} + report.Path, report.Err = ctr.Mount() + reports = append(reports, &report) + } + if len(reports) > 0 { + return reports, nil + } + + // No containers were passed, so we send back what is mounted + ctrs, err = getContainersByContext(true, false, []string{}, ic.Libpod) + if err != nil { + return nil, err + } + for _, ctr := range ctrs { + mounted, path, err := ctr.Mounted() + if err != nil { + return nil, err + } + + if mounted { + reports = append(reports, &entities.ContainerMountReport{ + Id: ctr.ID(), + Name: ctr.Name(), + Path: path, + }) + } + } + return reports, nil +} + +func (ic *ContainerEngine) ContainerUnmount(ctx context.Context, nameOrIds []string, options entities.ContainerUnmountOptions) ([]*entities.ContainerUnmountReport, error) { + var reports []*entities.ContainerUnmountReport + ctrs, err := getContainersByContext(options.All, options.Latest, nameOrIds, ic.Libpod) + if err != nil { + return nil, err + } + for _, ctr := range ctrs { + state, err := ctr.State() + if err != nil { + logrus.Debugf("Error umounting container %s state: %s", ctr.ID(), err.Error()) + continue + } + if state == define.ContainerStateRunning { + logrus.Debugf("Error umounting container %s, is running", ctr.ID()) + continue + } + + report := entities.ContainerUnmountReport{Id: ctr.ID()} + if err := ctr.Unmount(options.Force); err != nil { + if options.All && errors.Cause(err) == storage.ErrLayerNotMounted { + logrus.Debugf("Error umounting container %s, storage.ErrLayerNotMounted", ctr.ID()) + continue + } + report.Err = errors.Wrapf(err, "error unmounting container %s", ctr.ID()) + } + reports = append(reports, &report) + } + return reports, nil +} + +// GetConfig returns a copy of the configuration used by the runtime +func (ic *ContainerEngine) Config(_ context.Context) (*config.Config, error) { + return ic.Libpod.GetConfig() +} |