podman/pkg/domain/infra/abi/containers.go

1816 lines
56 KiB
Go

//go:build !remote
package abi
import (
"bytes"
"context"
"errors"
"fmt"
"os"
"reflect"
"strconv"
"sync"
"time"
"github.com/containers/buildah"
"github.com/containers/common/pkg/cgroups"
"github.com/containers/common/pkg/config"
"github.com/containers/image/v5/manifest"
"github.com/containers/podman/v5/libpod"
"github.com/containers/podman/v5/libpod/define"
"github.com/containers/podman/v5/libpod/logs"
"github.com/containers/podman/v5/pkg/checkpoint"
"github.com/containers/podman/v5/pkg/domain/entities"
"github.com/containers/podman/v5/pkg/domain/entities/reports"
dfilters "github.com/containers/podman/v5/pkg/domain/filters"
"github.com/containers/podman/v5/pkg/domain/infra/abi/terminal"
"github.com/containers/podman/v5/pkg/errorhandling"
parallelctr "github.com/containers/podman/v5/pkg/parallel/ctr"
"github.com/containers/podman/v5/pkg/ps"
"github.com/containers/podman/v5/pkg/rootless"
"github.com/containers/podman/v5/pkg/signal"
"github.com/containers/podman/v5/pkg/specgen"
"github.com/containers/podman/v5/pkg/specgen/generate"
"github.com/containers/podman/v5/pkg/specgenutil"
"github.com/containers/podman/v5/pkg/util"
"github.com/containers/storage"
"github.com/containers/storage/pkg/unshare"
"github.com/containers/storage/types"
"github.com/hashicorp/go-multierror"
"github.com/sirupsen/logrus"
)
type getContainersOptions struct {
all bool
isPod bool
ignore bool
latest bool
running bool
filters map[string][]string
names []string
}
type containerWrapper struct {
*libpod.Container
rawInput string
doesNotExist bool
}
func getContainers(runtime *libpod.Runtime, options getContainersOptions) ([]containerWrapper, error) {
var libpodContainers []*libpod.Container
switch {
case len(options.filters) > 0:
filterFuncs := make([]libpod.ContainerFilter, 0, len(options.filters))
for k, v := range options.filters {
generatedFunc, err := dfilters.GenerateContainerFilterFuncs(k, v, runtime)
if err != nil {
return nil, err
}
filterFuncs = append(filterFuncs, generatedFunc)
}
ctrs, err := runtime.GetContainers(false, filterFuncs...)
if err != nil {
return nil, err
}
libpodContainers = ctrs
if len(options.names) > 0 {
var filteredCtrs []*libpod.Container
for _, candidate := range ctrs {
for _, name := range options.names {
if candidate.ID() == name || candidate.Name() == name {
filteredCtrs = append(filteredCtrs, candidate)
}
}
libpodContainers = filteredCtrs
}
}
case options.running:
// Process `running` before `all`. podman-restart allows both
// but will narrow it down to `running`.
containers, err := runtime.GetRunningContainers()
if err != nil {
return nil, err
}
libpodContainers = containers
case options.all:
containers, err := runtime.GetAllContainers()
if err != nil {
return nil, err
}
libpodContainers = containers
case options.latest:
if options.isPod {
pod, err := runtime.GetLatestPod()
if err != nil {
return nil, err
}
podCtrs, err := pod.AllContainers()
if err != nil {
return nil, err
}
libpodContainers = podCtrs
} else {
ctr, err := runtime.GetLatestContainer()
if err != nil {
return nil, err
}
libpodContainers = append(libpodContainers, ctr)
}
default:
containers := make([]containerWrapper, 0, len(options.names))
for _, n := range options.names {
ctr, err := runtime.LookupContainer(n)
if err != nil {
if options.ignore && errors.Is(err, define.ErrNoSuchCtr) {
containers = append(containers, containerWrapper{rawInput: n, doesNotExist: true})
continue
}
return nil, err
}
containers = append(containers, containerWrapper{Container: ctr, rawInput: n})
}
return containers, nil
}
// If no names or IDs are specified, we can return the result as is.
// Otherwise, we need to do some further lookups.
if len(options.names) == 0 || (len(options.names) == 1 && options.names[0] == "") {
containers := make([]containerWrapper, len(libpodContainers))
for i, c := range libpodContainers {
containers[i] = containerWrapper{Container: libpodContainers[i], rawInput: c.ID()}
}
return containers, nil
}
containers := []containerWrapper{}
for _, n := range options.names {
c, err := runtime.LookupContainer(n)
if err != nil {
return nil, err
}
for i, lc := range libpodContainers {
if c.ID() == lc.ID() {
containers = append(containers, containerWrapper{Container: libpodContainers[i], rawInput: n})
break
}
}
}
return containers, nil
}
// ContainerExists returns whether the container exists in container storage
func (ic *ContainerEngine) ContainerExists(ctx context.Context, nameOrID string, options entities.ContainerExistsOptions) (*entities.BoolReport, error) {
_, err := ic.Libpod.LookupContainer(nameOrID)
if err != nil {
if !errors.Is(err, define.ErrNoSuchCtr) {
return nil, err
}
if options.External {
// Check if container exists in storage
if _, storageErr := ic.Libpod.StorageContainer(nameOrID); storageErr == nil {
err = nil
}
}
}
return &entities.BoolReport{Value: err == nil}, nil
}
func (ic *ContainerEngine) ContainerWait(ctx context.Context, namesOrIds []string, options entities.WaitOptions) ([]entities.WaitReport, error) {
responses := make([]entities.WaitReport, 0, len(namesOrIds))
containers, err := getContainers(ic.Libpod, getContainersOptions{latest: options.Latest, ignore: options.Ignore, names: namesOrIds})
if err != nil {
return nil, err
}
for _, c := range containers {
if c.doesNotExist { // Only set when `options.Ignore == true`
responses = append(responses, entities.WaitReport{ExitCode: -1})
continue
}
response := entities.WaitReport{}
var conditions []string
if len(options.Conditions) == 0 {
conditions = []string{define.ContainerStateStopped.String(), define.ContainerStateExited.String()}
} else {
conditions = options.Conditions
}
exitCode, err := c.WaitForConditionWithInterval(ctx, options.Interval, conditions...)
if err != nil {
response.Error = err
} else {
response.ExitCode = exitCode
}
responses = append(responses, response)
}
return responses, nil
}
func (ic *ContainerEngine) ContainerPause(ctx context.Context, namesOrIds []string, options entities.PauseUnPauseOptions) ([]*entities.PauseUnpauseReport, error) {
containers, err := getContainers(ic.Libpod, getContainersOptions{all: options.All, latest: options.Latest, names: namesOrIds, filters: options.Filters})
if err != nil {
return nil, err
}
reports := make([]*entities.PauseUnpauseReport, 0, len(containers))
for _, c := range containers {
err := c.Pause()
if err != nil && options.All && errors.Is(err, define.ErrCtrStateInvalid) {
logrus.Debugf("Container %s is not running", c.ID())
continue
}
reports = append(reports, &entities.PauseUnpauseReport{
Id: c.ID(),
Err: err,
RawInput: c.rawInput,
})
}
return reports, nil
}
func (ic *ContainerEngine) ContainerUnpause(ctx context.Context, namesOrIds []string, options entities.PauseUnPauseOptions) ([]*entities.PauseUnpauseReport, error) {
containers, err := getContainers(ic.Libpod, getContainersOptions{all: options.All, latest: options.Latest, names: namesOrIds, filters: options.Filters})
if err != nil {
return nil, err
}
reports := make([]*entities.PauseUnpauseReport, 0, len(containers))
for _, c := range containers {
err := c.Unpause()
if err != nil && options.All && errors.Is(err, define.ErrCtrStateInvalid) {
logrus.Debugf("Container %s is not paused", c.ID())
continue
}
reports = append(reports, &entities.PauseUnpauseReport{
Id: c.ID(),
Err: err,
RawInput: c.rawInput,
})
}
return reports, nil
}
func (ic *ContainerEngine) ContainerStop(ctx context.Context, namesOrIds []string, options entities.StopOptions) ([]*entities.StopReport, error) {
containers, err := getContainers(ic.Libpod,
getContainersOptions{
all: options.All,
latest: options.Latest,
names: namesOrIds,
filters: options.Filters,
ignore: options.Ignore,
})
if err != nil {
return nil, err
}
idToRawInput := make(map[string]string, len(containers))
libpodContainers := make([]*libpod.Container, 0, len(containers))
for i, c := range containers {
if c.doesNotExist {
continue
}
idToRawInput[c.ID()] = c.rawInput
libpodContainers = append(libpodContainers, containers[i].Container)
}
errMap, err := parallelctr.ContainerOp(ctx, libpodContainers, func(c *libpod.Container) error {
var err error
if options.Timeout != nil {
err = c.StopWithTimeout(*options.Timeout)
} else {
err = c.Stop()
}
if err != nil {
switch {
case errors.Is(err, define.ErrCtrStopped):
logrus.Debugf("Container %s is already stopped", c.ID())
case options.All && errors.Is(err, define.ErrCtrStateInvalid):
logrus.Debugf("Container %s is not running, could not stop", c.ID())
// container never created in OCI runtime
// docker parity: do nothing just return container id
case errors.Is(err, define.ErrCtrStateInvalid):
logrus.Debugf("Container %s is either not created on runtime or is in an invalid state", c.ID())
default:
return err
}
}
if c.AutoRemove() {
_, imageName := c.Image()
if err := ic.Libpod.RemoveContainer(ctx, c, false, true, nil); err != nil {
// Issue #7384 and #11384: If the container is configured for
// auto-removal, it might already have been removed at this point.
// We still need to clean up since we do not know if the other cleanup process is successful
if !errors.Is(err, define.ErrNoSuchCtr) && !errors.Is(err, define.ErrCtrRemoved) {
return err
}
}
if c.AutoRemoveImage() {
imageEngine := ImageEngine{Libpod: ic.Libpod}
_, rmErrors := imageEngine.Remove(ctx, []string{imageName}, entities.ImageRemoveOptions{Ignore: true})
if len(rmErrors) > 0 {
mErr := multierror.Append(nil, rmErrors...)
return fmt.Errorf("removing container %s image %s: %w", c.ID(), imageName, mErr)
}
}
} else {
if err = c.Cleanup(ctx, false); err != nil {
// The container could still have been removed, as we unlocked
// after we stopped it.
if errors.Is(err, define.ErrNoSuchCtr) || errors.Is(err, define.ErrCtrRemoved) {
return nil
}
return err
}
}
return nil
})
if err != nil {
return nil, err
}
reports := make([]*entities.StopReport, 0, len(errMap))
for ctr, err := range errMap {
report := new(entities.StopReport)
report.Id = ctr.ID()
report.RawInput = idToRawInput[ctr.ID()]
report.Err = err
reports = append(reports, report)
}
return reports, nil
}
func (ic *ContainerEngine) ContainerPrune(ctx context.Context, options entities.ContainerPruneOptions) ([]*reports.PruneReport, error) {
filterFuncs := make([]libpod.ContainerFilter, 0, len(options.Filters))
for k, v := range options.Filters {
generatedFunc, err := dfilters.GeneratePruneContainerFilterFuncs(k, v, ic.Libpod)
if err != nil {
return nil, err
}
filterFuncs = append(filterFuncs, generatedFunc)
}
return ic.Libpod.PruneContainers(filterFuncs)
}
func (ic *ContainerEngine) ContainerKill(ctx context.Context, namesOrIds []string, options entities.KillOptions) ([]*entities.KillReport, error) {
sig, err := signal.ParseSignalNameOrNumber(options.Signal)
if err != nil {
return nil, err
}
containers, err := getContainers(ic.Libpod, getContainersOptions{all: options.All, latest: options.Latest, names: namesOrIds})
if err != nil {
return nil, err
}
reports := make([]*entities.KillReport, 0, len(containers))
for _, con := range containers {
err := con.Kill(uint(sig))
if options.All && errors.Is(err, define.ErrCtrStateInvalid) {
logrus.Debugf("Container %s is not running", con.ID())
continue
}
reports = append(reports, &entities.KillReport{
Id: con.ID(),
Err: err,
RawInput: con.rawInput,
})
}
return reports, nil
}
func (ic *ContainerEngine) ContainerRestart(ctx context.Context, namesOrIds []string, options entities.RestartOptions) ([]*entities.RestartReport, error) {
containers, err := getContainers(ic.Libpod, getContainersOptions{
all: options.All,
filters: options.Filters,
latest: options.Latest,
running: options.Running,
names: namesOrIds,
})
if err != nil {
return nil, err
}
reports := make([]*entities.RestartReport, 0, len(containers))
for _, c := range containers {
timeout := c.StopTimeout()
if options.Timeout != nil {
timeout = *options.Timeout
}
reports = append(reports, &entities.RestartReport{
Id: c.ID(),
Err: c.RestartWithTimeout(ctx, timeout),
RawInput: c.rawInput,
})
}
return reports, nil
}
//nolint:unparam
func (ic *ContainerEngine) removeContainer(ctx context.Context, ctr *libpod.Container, options entities.RmOptions) (map[string]error, map[string]error, error) {
var err error
ctrs := make(map[string]error)
pods := make(map[string]error)
if options.All || options.Depend {
ctrs, pods, err = ic.Libpod.RemoveContainerAndDependencies(ctx, ctr, options.Force, options.Volumes, options.Timeout)
} else {
err = ic.Libpod.RemoveContainer(ctx, ctr, options.Force, options.Volumes, options.Timeout)
}
ctrs[ctr.ID()] = err
if err == nil {
return ctrs, pods, nil
}
logrus.Debugf("Failed to remove container %s: %s", ctr.ID(), err.Error())
if errors.Is(err, define.ErrNoSuchCtr) || errors.Is(err, define.ErrCtrRemoved) {
return ctrs, pods, nil
}
return ctrs, pods, err
}
func (ic *ContainerEngine) ContainerRm(ctx context.Context, namesOrIds []string, options entities.RmOptions) ([]*reports.RmReport, error) {
rmReports := []*reports.RmReport{}
containers, err := getContainers(ic.Libpod, getContainersOptions{
all: options.All,
latest: options.Latest,
filters: options.Filters,
names: namesOrIds,
ignore: true, // Force ignore as `podman rm` also handles external containers
})
if err != nil {
return nil, err
}
libpodContainers := make([]*libpod.Container, 0, len(containers))
idToRawInput := make(map[string]string, len(containers))
for i, ctr := range containers {
if ctr.doesNotExist {
// If the container does not exist in Podman's database, it may
// be an external one. Hence, try removing the external
// "storage" container.
if err := ic.Libpod.RemoveStorageContainer(ctr.rawInput, options.Force); err != nil {
if options.Ignore && (errors.Is(err, define.ErrNoSuchCtr) || errors.Is(err, define.ErrCtrExists)) {
continue
}
return nil, err
}
rmReports = append(rmReports, &reports.RmReport{RawInput: ctr.rawInput})
} else {
// If the container exists in the Podman database, we
// can remove it correctly below.
libpodContainers = append(libpodContainers, containers[i].Container)
idToRawInput[ctr.ID()] = ctr.rawInput
}
}
ctrsMap := make(map[string]error)
mapMutex := sync.Mutex{}
errMap, err := parallelctr.ContainerOp(ctx, libpodContainers, func(c *libpod.Container) error {
mapMutex.Lock()
if _, ok := ctrsMap[c.ID()]; ok {
mapMutex.Unlock()
return nil
}
mapMutex.Unlock()
// TODO: We should report removed pods back somehow.
ctrs, _, err := ic.removeContainer(ctx, c, options)
mapMutex.Lock()
defer mapMutex.Unlock()
for ctr, err := range ctrs {
ctrsMap[ctr] = err
}
return err
})
if err != nil {
return nil, err
}
for ctr, err := range errMap {
if _, ok := ctrsMap[ctr.ID()]; ok {
logrus.Debugf("Multiple results for container %s - attempted multiple removals?", ctr.ID())
}
ctrsMap[ctr.ID()] = err
}
for ctr, err := range ctrsMap {
report := new(reports.RmReport)
report.Id = ctr
if !errors.Is(err, define.ErrNoSuchCtr) && !errors.Is(err, define.ErrCtrRemoved) {
report.Err = err
}
report.RawInput = idToRawInput[ctr]
rmReports = append(rmReports, report)
}
return rmReports, nil
}
func (ic *ContainerEngine) ContainerInspect(ctx context.Context, namesOrIds []string, options entities.InspectOptions) ([]*entities.ContainerInspectReport, []error, error) {
if options.Latest {
ctr, err := ic.Libpod.GetLatestContainer()
if err != nil {
if errors.Is(err, define.ErrNoSuchCtr) {
return nil, []error{fmt.Errorf("no containers to inspect: %w", err)}, nil
}
return nil, nil, err
}
inspect, err := ctr.Inspect(options.Size)
if err != nil {
return nil, nil, err
}
return []*entities.ContainerInspectReport{
{
InspectContainerData: inspect,
},
}, nil, nil
}
var (
reports = make([]*entities.ContainerInspectReport, 0, len(namesOrIds))
errs = []error{}
)
for _, name := range namesOrIds {
ctr, err := ic.Libpod.LookupContainer(name)
if err != nil {
// ErrNoSuchCtr is non-fatal, other errors will be
// treated as fatal.
if errors.Is(err, define.ErrNoSuchCtr) {
errs = append(errs, fmt.Errorf("no such container %q", name))
continue
}
return nil, nil, err
}
inspect, err := ctr.Inspect(options.Size)
if err != nil {
// ErrNoSuchCtr is non-fatal, other errors will be
// treated as fatal.
if errors.Is(err, define.ErrNoSuchCtr) {
errs = append(errs, fmt.Errorf("no such container %q", name))
continue
}
return nil, nil, err
}
reports = append(reports, &entities.ContainerInspectReport{InspectContainerData: inspect})
}
return reports, errs, nil
}
func (ic *ContainerEngine) ContainerTop(ctx context.Context, options entities.TopOptions) (*entities.StringSliceReport, error) {
var (
container *libpod.Container
err error
)
// Look up the container.
if options.Latest {
container, err = ic.Libpod.GetLatestContainer()
} else {
container, err = ic.Libpod.LookupContainer(options.NameOrID)
}
if err != nil {
return nil, fmt.Errorf("unable to look up requested container: %w", err)
}
// Run Top.
report := &entities.StringSliceReport{}
report.Value, err = container.Top(options.Descriptors)
return report, err
}
func (ic *ContainerEngine) ContainerCommit(ctx context.Context, nameOrID string, options entities.CommitOptions) (*entities.CommitReport, error) {
var (
mimeType string
)
ctr, err := ic.Libpod.LookupContainer(nameOrID)
if err != nil {
return nil, err
}
rtc, err := ic.Libpod.GetConfig()
if err != nil {
return nil, err
}
switch options.Format {
case "oci":
mimeType = buildah.OCIv1ImageManifest
if len(options.Message) > 0 {
return nil, fmt.Errorf("messages are only compatible with the docker image format (-f docker)")
}
case "docker":
mimeType = manifest.DockerV2Schema2MediaType
default:
return nil, fmt.Errorf("unrecognized image format %q", options.Format)
}
sc := ic.Libpod.SystemContext()
var changes []string
if len(options.Changes) > 0 {
changes = util.DecodeChanges(options.Changes)
}
var overrideConfig *manifest.Schema2Config
if len(options.Config) > 0 {
if overrideConfig, err = DecodeOverrideConfig(bytes.NewReader(options.Config)); err != nil {
return nil, err
}
}
coptions := buildah.CommitOptions{
SignaturePolicyPath: rtc.Engine.SignaturePolicyPath,
ReportWriter: options.Writer,
SystemContext: sc,
PreferredManifestType: mimeType,
OverrideConfig: overrideConfig,
}
opts := libpod.ContainerCommitOptions{
CommitOptions: coptions,
Pause: options.Pause,
IncludeVolumes: options.IncludeVolumes,
Message: options.Message,
Changes: changes,
Author: options.Author,
Squash: options.Squash,
}
newImage, err := ctr.Commit(ctx, options.ImageName, opts)
if err != nil {
return nil, err
}
return &entities.CommitReport{Id: newImage.ID()}, nil
}
func (ic *ContainerEngine) ContainerExport(ctx context.Context, nameOrID string, options entities.ContainerExportOptions) error {
ctr, err := ic.Libpod.LookupContainer(nameOrID)
if err != nil {
return err
}
return ctr.Export(options.Output)
}
func (ic *ContainerEngine) ContainerCheckpoint(ctx context.Context, namesOrIds []string, options entities.CheckpointOptions) ([]*entities.CheckpointReport, error) {
checkOpts := libpod.ContainerCheckpointOptions{
Keep: options.Keep,
TCPEstablished: options.TCPEstablished,
TargetFile: options.Export,
IgnoreRootfs: options.IgnoreRootFS,
IgnoreVolumes: options.IgnoreVolumes,
KeepRunning: options.LeaveRunning,
PreCheckPoint: options.PreCheckPoint,
WithPrevious: options.WithPrevious,
Compression: options.Compression,
PrintStats: options.PrintStats,
FileLocks: options.FileLocks,
CreateImage: options.CreateImage,
}
// NOTE: all maps to running
containers, err := getContainers(ic.Libpod, getContainersOptions{running: options.All, latest: options.Latest, names: namesOrIds})
if err != nil {
return nil, err
}
reports := make([]*entities.CheckpointReport, 0, len(containers))
for _, c := range containers {
criuStatistics, runtimeCheckpointDuration, err := c.Checkpoint(ctx, checkOpts)
reports = append(reports, &entities.CheckpointReport{
Err: err,
Id: c.ID(),
RawInput: c.rawInput,
RuntimeDuration: runtimeCheckpointDuration,
CRIUStatistics: criuStatistics,
})
}
return reports, nil
}
func (ic *ContainerEngine) ContainerRestore(ctx context.Context, namesOrIds []string, options entities.RestoreOptions) ([]*entities.RestoreReport, error) {
var (
ctrs []*libpod.Container
checkpointImageImportErrors []error
err error
)
restoreOptions := libpod.ContainerCheckpointOptions{
Keep: options.Keep,
TCPEstablished: options.TCPEstablished,
TargetFile: options.Import,
Name: options.Name,
IgnoreRootfs: options.IgnoreRootFS,
IgnoreVolumes: options.IgnoreVolumes,
IgnoreStaticIP: options.IgnoreStaticIP,
IgnoreStaticMAC: options.IgnoreStaticMAC,
ImportPrevious: options.ImportPrevious,
Pod: options.Pod,
PrintStats: options.PrintStats,
FileLocks: options.FileLocks,
}
filterFuncs := []libpod.ContainerFilter{
func(c *libpod.Container) bool {
state, _ := c.State()
return state == define.ContainerStateExited
},
}
idToRawInput := map[string]string{}
switch {
case options.Import != "":
ctrs, err = checkpoint.CRImportCheckpointTar(ctx, ic.Libpod, options)
case options.All:
ctrs, err = ic.Libpod.GetContainers(false, filterFuncs...)
case options.Latest:
containers, err := getContainers(ic.Libpod, getContainersOptions{latest: options.Latest, names: namesOrIds})
if err != nil {
return nil, err
}
ctrs = make([]*libpod.Container, 0, len(containers))
for i := range containers {
ctrs = append(ctrs, containers[i].Container)
}
default:
for _, nameOrID := range namesOrIds {
logrus.Debugf("look up container: %q", nameOrID)
c, err := ic.Libpod.LookupContainer(nameOrID)
if err == nil {
ctrs = append(ctrs, c)
idToRawInput[c.ID()] = nameOrID
} else {
// If container was not found, check if this is a checkpoint image
logrus.Debugf("look up image: %q", nameOrID)
img, _, err := ic.Libpod.LibimageRuntime().LookupImage(nameOrID, nil)
if err != nil {
return nil, fmt.Errorf("no such container or image: %s", nameOrID)
}
restoreOptions.CheckpointImageID = img.ID()
mountPoint, err := img.Mount(ctx, nil, "")
defer func() {
if err := img.Unmount(true); err != nil {
logrus.Errorf("Failed to unmount image: %v", err)
}
}()
if err != nil {
return nil, err
}
importedCtrs, err := checkpoint.CRImportCheckpoint(ctx, ic.Libpod, options, mountPoint)
if err != nil {
// CRImportCheckpoint is expected to import exactly one container from checkpoint image
checkpointImageImportErrors = append(
checkpointImageImportErrors,
fmt.Errorf("unable to import checkpoint from image: %q: %v", nameOrID, err),
)
} else {
ctrs = append(ctrs, importedCtrs[0])
}
}
}
}
if err != nil {
return nil, err
}
reports := make([]*entities.RestoreReport, 0, len(ctrs))
for _, c := range ctrs {
criuStatistics, runtimeRestoreDuration, err := c.Restore(ctx, restoreOptions)
reports = append(reports, &entities.RestoreReport{
Err: err,
Id: c.ID(),
RawInput: idToRawInput[c.ID()],
RuntimeDuration: runtimeRestoreDuration,
CRIUStatistics: criuStatistics,
})
}
for _, importErr := range checkpointImageImportErrors {
reports = append(reports, &entities.RestoreReport{
Err: importErr,
})
}
return reports, nil
}
func (ic *ContainerEngine) ContainerCreate(ctx context.Context, s *specgen.SpecGenerator) (*entities.ContainerCreateReport, error) {
warn, err := generate.CompleteSpec(ctx, ic.Libpod, s)
if err != nil {
return nil, err
}
// Print warnings
for _, w := range warn {
fmt.Fprintf(os.Stderr, "%s\n", w)
}
rtSpec, spec, opts, err := generate.MakeContainer(context.Background(), ic.Libpod, s, false, nil)
if err != nil {
return nil, err
}
ctr, err := generate.ExecuteCreate(ctx, ic.Libpod, rtSpec, spec, false, opts...)
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 {
containers, err := getContainers(ic.Libpod, getContainersOptions{latest: options.Latest, names: []string{nameOrID}})
if err != nil {
return err
}
if len(containers) != 1 {
return fmt.Errorf("%w: expected to find exactly one container but got %d", define.ErrInternal, len(containers))
}
ctr := containers[0]
// If the container is in a pod, also set to recursively start dependencies
err = terminal.StartAttachCtr(ctx, ctr.Container, options.Stdout, options.Stderr, options.Stdin, options.DetachKeys, options.SigProxy, false)
if err != nil && !errors.Is(err, define.ErrDetach) {
return fmt.Errorf("attaching to container %s: %w", ctr.ID(), err)
}
os.Stdout.WriteString("\n")
return nil
}
func makeExecConfig(options entities.ExecOptions, rt *libpod.Runtime) (*libpod.ExecConfig, error) {
execConfig := new(libpod.ExecConfig)
execConfig.Command = options.Cmd
execConfig.Terminal = options.Tty
execConfig.Privileged = options.Privileged
execConfig.Environment = options.Envs
execConfig.User = options.User
execConfig.WorkDir = options.WorkDir
execConfig.DetachKeys = &options.DetachKeys
execConfig.PreserveFDs = options.PreserveFDs
execConfig.PreserveFD = options.PreserveFD
execConfig.AttachStdin = options.Interactive
// Make an exit command
storageConfig := rt.StorageConfig()
runtimeConfig, err := rt.GetConfig()
if err != nil {
return nil, fmt.Errorf("retrieving Libpod configuration to build exec exit command: %w", err)
}
// TODO: Add some ability to toggle syslog
exitCommandArgs, err := specgenutil.CreateExitCommandArgs(storageConfig, runtimeConfig, logrus.IsLevelEnabled(logrus.DebugLevel), false, false, true)
if err != nil {
return nil, fmt.Errorf("constructing exit command for exec session: %w", err)
}
execConfig.ExitCommand = exitCommandArgs
return execConfig, nil
}
func checkExecPreserveFDs(options entities.ExecOptions) error {
if options.PreserveFDs > 0 {
entries, err := os.ReadDir(processFileDescriptorsPath)
if err != nil {
return err
}
m := make(map[int]bool)
for _, e := range entries {
i, err := strconv.Atoi(e.Name())
if err != nil {
return fmt.Errorf("cannot parse %s in %s: %w", e.Name(), processFileDescriptorsPath, err)
}
m[i] = true
}
for i := 3; i < 3+int(options.PreserveFDs); i++ {
if _, found := m[i]; !found {
return errors.New("invalid --preserve-fds=N specified. Not enough FDs available")
}
}
}
return nil
}
func (ic *ContainerEngine) ContainerExec(ctx context.Context, nameOrID string, options entities.ExecOptions, streams define.AttachStreams) (int, error) {
ec := define.ExecErrorCodeGeneric
err := checkExecPreserveFDs(options)
if err != nil {
return ec, err
}
containers, err := getContainers(ic.Libpod, getContainersOptions{latest: options.Latest, names: []string{nameOrID}})
if err != nil {
return ec, err
}
if len(containers) != 1 {
return ec, fmt.Errorf("%w: expected to find exactly one container but got %d", define.ErrInternal, len(containers))
}
ctr := containers[0]
if options.Tty {
util.ExecAddTERM(ctr.Env(), options.Envs)
}
execConfig, err := makeExecConfig(options, ic.Libpod)
if err != nil {
return ec, err
}
ec, err = terminal.ExecAttachCtr(ctx, ctr.Container, execConfig, &streams)
return define.TranslateExecErrorToExitCode(ec, err), err
}
func (ic *ContainerEngine) ContainerExecDetached(ctx context.Context, nameOrID string, options entities.ExecOptions) (string, error) {
err := checkExecPreserveFDs(options)
if err != nil {
return "", err
}
containers, err := getContainers(ic.Libpod, getContainersOptions{latest: options.Latest, names: []string{nameOrID}})
if err != nil {
return "", err
}
if len(containers) != 1 {
return "", fmt.Errorf("%w: expected to find exactly one container but got %d", define.ErrInternal, len(containers))
}
ctr := containers[0]
execConfig, err := makeExecConfig(options, ic.Libpod)
if err != nil {
return "", err
}
// Create and start the exec session
id, err := ctr.ExecCreate(execConfig)
if err != nil {
return "", err
}
// TODO: we should try and retrieve exit code if this fails.
if err := ctr.ExecStart(id); err != nil {
_ = ctr.ExecRemove(id, true)
return "", err
}
return id, nil
}
func (ic *ContainerEngine) ContainerStart(ctx context.Context, namesOrIds []string, options entities.ContainerStartOptions) ([]*entities.ContainerStartReport, error) {
reports := []*entities.ContainerStartReport{}
var exitCode = define.ExecErrorCodeGeneric
containers, err := getContainers(ic.Libpod, getContainersOptions{all: options.All, latest: options.Latest, names: namesOrIds, filters: options.Filters})
if err != nil {
return nil, err
}
// There can only be one container if attach was used
for i := range containers {
ctr := containers[i]
removeContainer := func() {
if _, _, err := ic.removeContainer(ctx, ctr.Container, entities.RmOptions{}); err != nil {
logrus.Errorf("Removing container %s: %v", ctr.ID(), err)
}
}
if options.Attach {
err = terminal.StartAttachCtr(ctx, ctr.Container, options.Stdout, options.Stderr, options.Stdin, options.DetachKeys, options.SigProxy, true)
if errors.Is(err, define.ErrDetach) {
// User manually detached
// Exit cleanly immediately
reports = append(reports, &entities.ContainerStartReport{
Id: ctr.ID(),
RawInput: ctr.rawInput,
Err: nil,
ExitCode: 0,
})
return reports, nil
}
if errors.Is(err, define.ErrWillDeadlock) {
logrus.Debugf("Deadlock error: %v", err)
reports = append(reports, &entities.ContainerStartReport{
Id: ctr.ID(),
RawInput: ctr.rawInput,
Err: err,
ExitCode: define.ExitCode(err),
})
return reports, fmt.Errorf("attempting to start container %s would cause a deadlock; please run 'podman system renumber' to resolve", ctr.ID())
}
if err != nil {
reports = append(reports, &entities.ContainerStartReport{
Id: ctr.ID(),
RawInput: ctr.rawInput,
Err: err,
ExitCode: exitCode,
})
if ctr.AutoRemove() {
removeContainer()
}
return reports, fmt.Errorf("unable to start container %s: %w", ctr.ID(), err)
}
exitCode, err2 := ic.ContainerWaitForExitCode(ctx, ctr.Container)
if err2 != nil {
logrus.Errorf("Waiting for container %s: %v", ctr.ID(), err2)
}
if ctr.AutoRemove() && !ctr.ShouldRestart(ctx) {
removeContainer()
}
reports = append(reports, &entities.ContainerStartReport{
Id: ctr.ID(),
RawInput: ctr.rawInput,
Err: err,
ExitCode: exitCode,
})
return reports, nil
} // end attach
// Handle non-attach start
// If the container is in a pod, also set to recursively start dependencies
report := &entities.ContainerStartReport{
Id: ctr.ID(),
RawInput: ctr.rawInput,
ExitCode: 125,
}
if err := ctr.Start(ctx, true); err != nil {
// Already running is no error for the start command as it is idempotent.
if errors.Is(err, define.ErrCtrStateRunning) {
// If all is set we only want to output the actual started containers
// so do not include the entry in the result.
if !options.All {
report.ExitCode = 0
reports = append(reports, report)
}
continue
}
report.Err = err
if errors.Is(err, define.ErrWillDeadlock) {
report.Err = fmt.Errorf("please run 'podman system renumber' to resolve deadlocks: %w", err)
reports = append(reports, report)
continue
}
report.Err = fmt.Errorf("unable to start container %q: %w", ctr.ID(), err)
if ctr.AutoRemove() {
removeContainer()
}
reports = append(reports, report)
continue
}
// no error set exit code to 0
report.ExitCode = 0
reports = append(reports, report)
}
return reports, nil
}
func (ic *ContainerEngine) ContainerList(ctx context.Context, options entities.ContainerListOptions) ([]entities.ListContainer, error) {
if options.Latest {
options.Last = 1
}
return ps.GetContainerLists(ic.Libpod, options)
}
func (ic *ContainerEngine) ContainerListExternal(ctx context.Context) ([]entities.ListContainer, error) {
return ps.GetExternalContainerLists(ic.Libpod)
}
// Diff provides changes to given container
func (ic *ContainerEngine) Diff(ctx context.Context, namesOrIDs []string, opts entities.DiffOptions) (*entities.DiffReport, error) {
var (
base string
parent string
)
if opts.Latest {
ctnr, err := ic.Libpod.GetLatestContainer()
if err != nil {
return nil, fmt.Errorf("unable to get latest container: %w", err)
}
base = ctnr.ID()
}
if len(namesOrIDs) > 0 {
base = namesOrIDs[0]
if len(namesOrIDs) > 1 {
parent = namesOrIDs[1]
}
}
changes, err := ic.Libpod.GetDiff(parent, base, opts.Type)
return &entities.DiffReport{Changes: changes}, err
}
func (ic *ContainerEngine) ContainerRun(ctx context.Context, opts entities.ContainerRunOptions) (*entities.ContainerRunReport, error) {
removeContainer := func(ctr *libpod.Container, force bool) error {
var timeout *uint
if err := ic.Libpod.RemoveContainer(ctx, ctr, force, true, timeout); err != nil {
logrus.Debugf("unable to remove container %s after failing to start and attach to it: %v", ctr.ID(), err)
return err
}
return nil
}
warn, err := generate.CompleteSpec(ctx, ic.Libpod, opts.Spec)
if err != nil {
return nil, err
}
// Print warnings
for _, w := range warn {
fmt.Fprintf(os.Stderr, "%s\n", w)
}
if opts.Spec != nil && !reflect.ValueOf(opts.Spec).IsNil() {
// If this is a checkpoint image, restore it.
img, resolvedImageName := opts.Spec.GetImage()
if img != nil && resolvedImageName != "" {
imgData, err := img.Inspect(ctx, nil)
if err != nil {
return nil, err
}
if imgData != nil {
_, isCheckpointImage := imgData.Annotations[define.CheckpointAnnotationRuntimeName]
if isCheckpointImage {
var restoreOptions entities.RestoreOptions
restoreOptions.Name = opts.Spec.Name
restoreOptions.Pod = opts.Spec.Pod
responses, err := ic.ContainerRestore(ctx, []string{resolvedImageName}, restoreOptions)
if err != nil {
return nil, err
}
report := entities.ContainerRunReport{}
for _, r := range responses {
report.Id = r.Id
report.ExitCode = 0
if r.Err != nil {
logrus.Errorf("Failed to restore checkpoint image %s: %v", resolvedImageName, r.Err)
report.ExitCode = 126
}
if r.RawInput != "" {
logrus.Errorf("Failed to restore checkpoint image %s: %v", resolvedImageName, r.RawInput)
report.ExitCode = 126
}
}
return &report, nil
}
}
}
}
rtSpec, spec, optsN, err := generate.MakeContainer(ctx, ic.Libpod, opts.Spec, false, nil)
if err != nil {
return nil, err
}
ctr, err := generate.ExecuteCreate(ctx, ic.Libpod, rtSpec, spec, false, optsN...)
if err != nil {
return nil, err
}
if opts.CIDFile != "" {
if err := util.CreateIDFile(opts.CIDFile, ctr.ID()); err != nil {
// If you fail to create CIDFile then remove the container
_ = removeContainer(ctr, true)
return nil, err
}
}
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, true); err != nil {
// This means the command did not exist
report.ExitCode = define.ExitCode(err)
if opts.Rm {
if rmErr := removeContainer(ctr, true); rmErr != nil && !errors.Is(rmErr, define.ErrNoSuchCtr) {
logrus.Errorf("Container %s failed to be removed", ctr.ID())
}
}
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); err != nil {
// We've manually detached from the container
// Do not perform cleanup, or wait for container exit code
// Just exit immediately
if errors.Is(err, define.ErrDetach) {
report.ExitCode = 0
return &report, nil
}
if opts.Rm {
_ = removeContainer(ctr, true)
}
if errors.Is(err, define.ErrWillDeadlock) {
logrus.Debugf("Deadlock error on %q: %v", ctr.ID(), err)
report.ExitCode = define.ExitCode(err)
return &report, fmt.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
}
report.ExitCode, _ = ic.ContainerWaitForExitCode(ctx, ctr)
if opts.Rm && !ctr.ShouldRestart(ctx) {
if err := removeContainer(ctr, false); err != nil {
if errors.Is(err, define.ErrNoSuchCtr) ||
errors.Is(err, define.ErrCtrRemoved) {
logrus.Infof("Container %s was already removed, skipping --rm", ctr.ID())
} else {
logrus.Errorf("Removing container %s: %v", ctr.ID(), err)
}
}
}
return &report, nil
}
func (ic *ContainerEngine) ContainerWaitForExitCode(ctx context.Context, ctr *libpod.Container) (int, error) {
exitCode, err := ctr.Wait(ctx)
if err != nil {
intExitCode := int(define.ExecErrorCodeNotFound)
return intExitCode, err
}
return int(exitCode), nil
}
func (ic *ContainerEngine) ContainerLogs(ctx context.Context, namesOrIds []string, options entities.ContainerLogsOptions) error {
if options.StdoutWriter == nil && options.StderrWriter == nil {
return errors.New("no io.Writer set for container logs")
}
var wg sync.WaitGroup
isPod := false
for _, c := range namesOrIds {
ctr, err := ic.Libpod.LookupContainer(c)
if err != nil {
return err
}
if ctr.IsInfra() {
isPod = true
break
}
}
containers, err := getContainers(ic.Libpod, getContainersOptions{latest: options.Latest, isPod: isPod, names: namesOrIds})
if err != nil {
return err
}
logOpts := &logs.LogOptions{
Multi: len(containers) > 1,
Details: options.Details,
Follow: options.Follow,
Since: options.Since,
Until: options.Until,
Tail: options.Tail,
Timestamps: options.Timestamps,
Colors: options.Colors,
UseName: options.Names,
WaitGroup: &wg,
}
chSize := len(containers)
logChannel := make(chan *logs.LogLine, chSize)
libpodContainers := make([]*libpod.Container, len(containers))
for i := range containers {
libpodContainers[i] = containers[i].Container
}
if err := ic.Libpod.Log(ctx, libpodContainers, logOpts, logChannel); err != nil {
return err
}
go func() {
wg.Wait()
close(logChannel)
}()
for line := range logChannel {
line.Write(options.StdoutWriter, options.StderrWriter, logOpts)
}
return nil
}
func (ic *ContainerEngine) ContainerCleanup(ctx context.Context, namesOrIds []string, options entities.ContainerCleanupOptions) ([]*entities.ContainerCleanupReport, error) {
containers, err := getContainers(ic.Libpod, getContainersOptions{all: options.All, latest: options.Latest, names: namesOrIds})
if err != nil {
// cleanup command spawned by conmon lost race as another process already removed the ctr
if errors.Is(err, define.ErrNoSuchCtr) {
return nil, nil
}
return nil, err
}
reports := []*entities.ContainerCleanupReport{}
for _, ctr := range containers {
var err error
report := entities.ContainerCleanupReport{Id: ctr.ID(), RawInput: ctr.rawInput}
if options.Exec != "" {
if options.Remove {
err = ctr.ExecRemove(options.Exec, false)
} else {
err = ctr.ExecCleanup(options.Exec)
}
// If ErrNoSuchExecSession then the exec session was already removed so do not report an error.
if err != nil && !errors.Is(err, define.ErrNoSuchExecSession) {
return nil, err
}
return []*entities.ContainerCleanupReport{}, nil
}
if options.Remove && !ctr.ShouldRestart(ctx) {
var timeout *uint
err = ic.Libpod.RemoveContainer(ctx, ctr.Container, false, true, timeout)
if err != nil && !errors.Is(err, define.ErrNoSuchCtr) {
report.RmErr = fmt.Errorf("failed to clean up and remove container %v: %w", ctr.ID(), err)
}
} else {
err := ctr.Cleanup(ctx, options.StoppedOnly)
// ignore error if ctr is removed or cannot be cleaned up, likely the ctr was already restarted by another process
if err != nil && !errors.Is(err, define.ErrNoSuchCtr) && !errors.Is(err, define.ErrCtrStateInvalid) {
report.CleanErr = fmt.Errorf("failed to clean up container %v: %w", ctr.ID(), err)
}
}
if options.RemoveImage {
_, imageName := ctr.Image()
imageEngine := ImageEngine{Libpod: ic.Libpod}
_, rmErrors := imageEngine.Remove(ctx, []string{imageName}, entities.ImageRemoveOptions{Ignore: true})
report.RmiErr = errorhandling.JoinErrors(rmErrors)
}
reports = append(reports, &report)
}
return reports, nil
}
func (ic *ContainerEngine) ContainerInit(ctx context.Context, namesOrIds []string, options entities.ContainerInitOptions) ([]*entities.ContainerInitReport, error) {
containers, err := getContainers(ic.Libpod, getContainersOptions{all: options.All, latest: options.Latest, names: namesOrIds})
if err != nil {
return nil, err
}
reports := make([]*entities.ContainerInitReport, 0, len(containers))
for _, ctr := range containers {
report := entities.ContainerInitReport{Id: ctr.ID(), RawInput: ctr.rawInput}
err := ctr.Init(ctx, ctr.PodID() != "")
// If we're initializing all containers, ignore invalid state errors
if options.All && errors.Is(err, define.ErrCtrStateInvalid) {
err = nil
}
report.Err = err
reports = append(reports, &report)
}
return reports, nil
}
func (ic *ContainerEngine) ContainerMount(ctx context.Context, nameOrIDs []string, options entities.ContainerMountOptions) ([]*entities.ContainerMountReport, error) {
hasCapSysAdmin, err := unshare.HasCapSysAdmin()
if err != nil {
return nil, err
}
if os.Geteuid() != 0 || !hasCapSysAdmin {
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)
}
}
reports := []*entities.ContainerMountReport{}
// Attempt to mount named containers directly from storage,
// this will fail and code will fall through to removing the container from libpod.`
names := []string{}
for _, ctr := range nameOrIDs {
report := entities.ContainerMountReport{Id: ctr}
if report.Path, report.Err = ic.Libpod.MountStorageContainer(ctr); report.Err != nil {
names = append(names, ctr)
} else {
reports = append(reports, &report)
}
}
containers, err := getContainers(ic.Libpod, getContainersOptions{all: options.All, latest: options.Latest, names: names})
if err != nil {
return nil, err
}
for _, ctr := range containers {
report := entities.ContainerMountReport{Id: ctr.ID()}
report.Path, report.Err = ctr.Mount()
if options.All &&
(errors.Is(report.Err, define.ErrNoSuchCtr) ||
errors.Is(report.Err, define.ErrCtrRemoved)) {
continue
}
reports = append(reports, &report)
}
if len(reports) > 0 {
return reports, nil
}
storageCtrs, err := ic.Libpod.StorageContainers()
if err != nil {
return nil, err
}
for _, sctr := range storageCtrs {
mounted, path, err := ic.Libpod.IsStorageContainerMounted(sctr.ID)
if err != nil {
// ErrCtrExists means this is a libpod container, we handle that below.
// This can only happen in a narrow race because we first create the storage
// container and then the libpod container so the StorageContainers() call
// above would need to happen in that interval.
if errors.Is(err, types.ErrContainerUnknown) || errors.Is(err, types.ErrLayerUnknown) || errors.Is(err, define.ErrCtrExists) {
continue
}
return nil, fmt.Errorf("check if storage container is mounted: %w", err)
}
var name string
if len(sctr.Names) > 0 {
name = sctr.Names[0]
}
if mounted {
reports = append(reports, &entities.ContainerMountReport{
Id: sctr.ID,
Name: name,
Path: path,
})
}
}
// No containers were passed, so we send back what is mounted
containers, err = getContainers(ic.Libpod, getContainersOptions{all: true})
if err != nil {
return nil, err
}
for _, ctr := range containers {
mounted, path, err := ctr.Mounted()
if err != nil {
if errors.Is(err, define.ErrNoSuchCtr) ||
errors.Is(err, define.ErrCtrRemoved) {
continue
}
return nil, fmt.Errorf("check if container is mounted: %w", 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) {
reports := []*entities.ContainerUnmountReport{}
names := []string{}
if options.All {
storageCtrs, err := ic.Libpod.StorageContainers()
if err != nil {
return nil, err
}
for _, sctr := range storageCtrs {
mounted, _, _ := ic.Libpod.IsStorageContainerMounted(sctr.ID)
if mounted {
report := entities.ContainerUnmountReport{Id: sctr.ID}
if _, report.Err = ic.Libpod.UnmountStorageContainer(sctr.ID, options.Force); report.Err != nil {
if !errors.Is(report.Err, define.ErrCtrExists) {
reports = append(reports, &report)
}
} else {
reports = append(reports, &report)
}
}
}
}
for _, ctr := range nameOrIDs {
report := entities.ContainerUnmountReport{Id: ctr}
if _, report.Err = ic.Libpod.UnmountStorageContainer(ctr, options.Force); report.Err != nil {
names = append(names, ctr)
} else {
reports = append(reports, &report)
}
}
containers, err := getContainers(ic.Libpod, getContainersOptions{all: options.All, latest: options.Latest, names: names})
if err != nil {
return nil, err
}
for _, ctr := range containers {
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.Is(err, storage.ErrLayerNotMounted) {
logrus.Debugf("Error umounting container %s, storage.ErrLayerNotMounted", ctr.ID())
continue
}
report.Err = fmt.Errorf("unmounting container %s: %w", ctr.ID(), err)
}
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()
}
func (ic *ContainerEngine) ContainerPort(ctx context.Context, nameOrID string, options entities.ContainerPortOptions) ([]*entities.ContainerPortReport, error) {
containers, err := getContainers(ic.Libpod, getContainersOptions{all: options.All, latest: options.Latest, names: []string{nameOrID}})
if err != nil {
return nil, err
}
reports := []*entities.ContainerPortReport{}
for _, con := range containers {
state, err := con.State()
if err != nil {
return nil, err
}
if state != define.ContainerStateRunning {
continue
}
portmappings, err := con.PortMappings()
if err != nil {
return nil, err
}
if len(portmappings) > 0 {
reports = append(reports, &entities.ContainerPortReport{
Id: con.ID(),
Ports: portmappings,
})
}
}
return reports, nil
}
// Shutdown Libpod engine
func (ic *ContainerEngine) Shutdown(_ context.Context) {
shutdownSync.Do(func() {
_ = ic.Libpod.Shutdown(false)
})
}
func (ic *ContainerEngine) ContainerStats(ctx context.Context, namesOrIds []string, options entities.ContainerStatsOptions) (statsChan chan entities.ContainerStatsReport, err error) {
if options.Interval < 1 {
return nil, errors.New("invalid interval, must be a positive number greater zero")
}
if rootless.IsRootless() {
unified, err := cgroups.IsCgroup2UnifiedMode()
if err != nil {
return nil, err
}
if !unified {
return nil, errors.New("stats is not supported in rootless mode without cgroups v2")
}
}
statsChan = make(chan entities.ContainerStatsReport, 1)
var containerFunc func() ([]*libpod.Container, error)
queryAll := false
switch {
case options.Latest:
containerFunc = func() ([]*libpod.Container, error) {
lastCtr, err := ic.Libpod.GetLatestContainer()
if err != nil {
return nil, err
}
return []*libpod.Container{lastCtr}, nil
}
case len(namesOrIds) > 0:
containerFunc = func() ([]*libpod.Container, error) { return ic.Libpod.GetContainersByList(namesOrIds) }
case options.All:
queryAll = true
containerFunc = ic.Libpod.GetAllContainers
default:
// queryAll is used to ignore errors when the container was removed between listing and
// checking stats which we should do for running containers as well
queryAll = true
containerFunc = ic.Libpod.GetRunningContainers
}
go func() {
defer close(statsChan)
containerStats := make(map[string]*define.ContainerStats)
stream: // label to flatten the scope
select {
case <-ctx.Done():
// client cancelled
logrus.Debugf("Container stats stopped: context cancelled")
return
default:
// just fall through and do work
}
// Anonymous func to easily use the return values for streaming.
computeStats := func() ([]define.ContainerStats, error) {
containers, err := containerFunc()
if err != nil {
return nil, fmt.Errorf("unable to get list of containers: %w", err)
}
reportStats := []define.ContainerStats{}
for _, ctr := range containers {
stats, err := ctr.GetContainerStats(containerStats[ctr.ID()])
if err != nil {
if queryAll &&
// All these errors might happen while we get stats, when we list all
// they must be skipped as they cause podman stats to stop and error otherwise.
// ErrCtrStopped can happen when the container process exited before we could
// update the container state
// https://github.com/containers/podman/issues/23334
(errors.Is(err, define.ErrCtrRemoved) || errors.Is(err, define.ErrNoSuchCtr) ||
errors.Is(err, define.ErrCtrStateInvalid) || errors.Is(err, define.ErrCtrStopped) ||
errors.Is(err, define.ErrNoCgroups)) {
continue
}
return nil, err
}
containerStats[ctr.ID()] = stats
reportStats = append(reportStats, *stats)
}
return reportStats, nil
}
report := entities.ContainerStatsReport{}
report.Stats, report.Error = computeStats()
statsChan <- report
if report.Error != nil || !options.Stream {
return
}
time.Sleep(time.Second * time.Duration(options.Interval))
goto stream
}()
return statsChan, nil
}
// ContainerRename renames the given container.
func (ic *ContainerEngine) ContainerRename(ctx context.Context, nameOrID string, opts entities.ContainerRenameOptions) error {
ctr, err := ic.Libpod.LookupContainer(nameOrID)
if err != nil {
return err
}
if _, err := ic.Libpod.RenameContainer(ctx, ctr, opts.NewName); err != nil {
return err
}
return nil
}
func (ic *ContainerEngine) ContainerClone(ctx context.Context, ctrCloneOpts entities.ContainerCloneOptions) (*entities.ContainerCreateReport, error) {
spec := specgen.NewSpecGenerator(ctrCloneOpts.Image, ctrCloneOpts.CreateOpts.RootFS)
var c *libpod.Container
c, _, err := generate.ConfigToSpec(ic.Libpod, spec, ctrCloneOpts.ID)
if err != nil {
return nil, err
}
if ctrCloneOpts.CreateOpts.Pod != "" {
pod, err := ic.Libpod.LookupPod(ctrCloneOpts.CreateOpts.Pod)
if err != nil {
return nil, err
}
if len(spec.Networks) > 0 && pod.SharesNet() {
logrus.Warning("resetting network config, cannot specify a network other than the pod's when sharing the net namespace")
spec.Networks = nil
spec.NetworkOptions = nil
}
allNamespaces := []struct {
isShared bool
value *specgen.Namespace
}{
{pod.SharesPID(), &spec.PidNS},
{pod.SharesNet(), &spec.NetNS},
{pod.SharesCgroup(), &spec.CgroupNS},
{pod.SharesIPC(), &spec.IpcNS},
{pod.SharesUTS(), &spec.UtsNS},
}
printWarning := false
for _, n := range allNamespaces {
if n.isShared && !n.value.IsDefault() {
*n.value = specgen.Namespace{NSMode: specgen.Default}
printWarning = true
}
}
if printWarning {
logrus.Warning("At least one namespace was reset to the default configuration")
}
}
ctrCloneOpts.CreateOpts.HealthOnFailure = spec.HealthCheckOnFailureAction.String()
ctrCloneOpts.CreateOpts.HealthLogDestination = spec.HealthLogDestination
ctrCloneOpts.CreateOpts.HealthMaxLogCount = spec.HealthMaxLogCount
ctrCloneOpts.CreateOpts.HealthMaxLogSize = spec.HealthMaxLogSize
err = specgenutil.FillOutSpecGen(spec, &ctrCloneOpts.CreateOpts, []string{})
if err != nil {
return nil, err
}
out, err := generate.CompleteSpec(ctx, ic.Libpod, spec)
if err != nil {
return nil, err
}
// if we do not pass term, running ctrs exit
localTerm := c.Terminal()
spec.Terminal = &localTerm
// Print warnings
if len(out) > 0 {
for _, w := range out {
fmt.Println("Could not properly complete the spec as expected:")
fmt.Fprintf(os.Stderr, "%s\n", w)
}
}
if len(ctrCloneOpts.CreateOpts.Name) > 0 {
spec.Name = ctrCloneOpts.CreateOpts.Name
} else {
n := c.Name()
_, err := ic.Libpod.LookupContainer(c.Name() + "-clone")
if err == nil {
n += "-clone"
}
spec.Name = generate.CheckName(ic.Libpod, n, true)
}
rtSpec, spec, opts, err := generate.MakeContainer(context.Background(), ic.Libpod, spec, true, c)
if err != nil {
return nil, err
}
ctr, err := generate.ExecuteCreate(ctx, ic.Libpod, rtSpec, spec, false, opts...)
if err != nil {
return nil, err
}
if ctrCloneOpts.Destroy {
var time *uint
err = ic.Libpod.RemoveContainer(context.Background(), c, ctrCloneOpts.Force, false, time)
if err != nil {
return nil, err
}
}
if ctrCloneOpts.Run {
if err := ctr.Start(ctx, true); err != nil {
return nil, err
}
}
return &entities.ContainerCreateReport{Id: ctr.ID()}, nil
}
// ContainerUpdate finds and updates the given container's cgroup config with the specified options
func (ic *ContainerEngine) ContainerUpdate(ctx context.Context, updateOptions *entities.ContainerUpdateOptions) (string, error) {
updateOptions.ProcessSpecgen()
containers, err := getContainers(ic.Libpod, getContainersOptions{latest: updateOptions.Latest, names: []string{updateOptions.NameOrID}})
if err != nil {
return "", err
}
if len(containers) != 1 {
return "", fmt.Errorf("container not found")
}
container := containers[0].Container
updateOptions.Resources, err = specgenutil.UpdateMajorAndMinorNumbers(updateOptions.Resources, updateOptions.DevicesLimits)
if err != nil {
return "", err
}
if err = container.Update(updateOptions); err != nil {
return "", err
}
return containers[0].ID(), nil
}