Cleanup image operations.

Signed-off-by: Lantao Liu <lantaol@google.com>
This commit is contained in:
Lantao Liu 2017-08-30 07:34:00 +00:00
parent 39854b292a
commit ac4f238f48
13 changed files with 96 additions and 85 deletions

View File

@ -156,7 +156,7 @@ func (c *criContainerdService) CreateContainer(ctx context.Context, r *runtime.C
}
opts = append(opts,
containerd.WithSpec(spec, specOpts...),
containerd.WithRuntime(defaultRuntime),
containerd.WithRuntime(defaultRuntime, nil),
containerd.WithContainerLabels(labels))
var cntr containerd.Container
if cntr, err = c.client.NewContainer(ctx, id, opts...); err != nil {

View File

@ -25,6 +25,7 @@ import (
"strings"
"github.com/containerd/cgroups"
"github.com/containerd/containerd"
"github.com/containerd/containerd/content"
"github.com/containerd/containerd/errdefs"
"github.com/docker/distribution/reference"
@ -204,50 +205,6 @@ func normalizeImageRef(ref string) (reference.Named, error) {
return reference.TagNameOnly(named), nil
}
// getImageInfo returns image chainID, compressed size, oci config, imageID. Note that getImageInfo
// assumes that the image has been pulled or it will return an error.
func (c *criContainerdService) getImageInfo(ctx context.Context, ref string) (
imagedigest.Digest, int64, *imagespec.ImageConfig, imagedigest.Digest, error) {
// Get image config
normalized, err := normalizeImageRef(ref)
if err != nil {
return "", 0, nil, "", fmt.Errorf("failed to normalize image reference %q: %v", ref, err)
}
normalizedRef := normalized.String()
//TODO(Abhi): Switch to using containerd client GetImage() api
image, err := c.imageStoreService.Get(ctx, normalizedRef)
if err != nil {
return "", 0, nil, "", fmt.Errorf("failed to get image %q from containerd image store: %v",
normalizedRef, err)
}
// Get image config
desc, err := image.Config(ctx, c.contentStoreService)
if err != nil {
return "", 0, nil, "", fmt.Errorf("failed to get image config descriptor: %v", err)
}
rb, err := content.ReadBlob(ctx, c.contentStoreService, desc.Digest)
if err != nil {
return "", 0, nil, "", fmt.Errorf("failed to get image config reader: %v", err)
}
var imageConfig imagespec.Image
if err = json.Unmarshal(rb, &imageConfig); err != nil {
return "", 0, nil, "", err
}
// Get image chainID
diffIDs, err := image.RootFS(ctx, c.contentStoreService)
if err != nil {
return "", 0, nil, "", fmt.Errorf("failed to get image diff ids: %v", err)
}
chainID := identity.ChainID(diffIDs)
// Get image size
size, err := image.Size(ctx, c.contentStoreService)
if err != nil {
return "", 0, nil, "", fmt.Errorf("failed to get image size: %v", err)
}
return chainID, size, &imageConfig.Config, desc.Digest, nil
}
// getRepoDigestAngTag returns image repoDigest and repoTag of the named image reference.
func getRepoDigestAndTag(namedRef reference.Named, digest imagedigest.Digest, schema1 bool) (string, string) {
var repoTag, repoDigest string
@ -273,16 +230,14 @@ func (c *criContainerdService) localResolve(ctx context.Context, ref string) (*i
if err != nil {
return nil, fmt.Errorf("invalid image reference %q: %v", ref, err)
}
//TODO(Abhi): Switch to using containerd client GetImage() api
imageInContainerd, err := c.imageStoreService.Get(ctx, normalized.String())
image, err := c.client.GetImage(ctx, normalized.String())
if err != nil {
if errdefs.IsNotFound(err) {
return nil, nil
}
return nil, fmt.Errorf("an error occurred when getting image %q from containerd image store: %v",
normalized.String(), err)
return nil, fmt.Errorf("failed to get image from containerd: %v", err)
}
desc, err := imageInContainerd.Config(ctx, c.contentStoreService)
desc, err := image.Config(ctx)
if err != nil {
return nil, fmt.Errorf("failed to get image config descriptor: %v", err)
}
@ -374,3 +329,48 @@ func loadCgroup(cgroupPath string) (cgroups.Cgroup, error) {
}
return cg, nil
}
// imageInfo is the information about the image got from containerd.
type imageInfo struct {
id string
chainID imagedigest.Digest
size int64
config imagespec.ImageConfig
}
// getImageInfo gets image info from containerd.
func getImageInfo(ctx context.Context, image containerd.Image, provider content.Provider) (*imageInfo, error) {
// Get image information.
diffIDs, err := image.RootFS(ctx)
if err != nil {
return nil, fmt.Errorf("failed to get image diffIDs: %v", err)
}
chainID := identity.ChainID(diffIDs)
size, err := image.Size(ctx)
if err != nil {
return nil, fmt.Errorf("failed to get image compressed resource size: %v", err)
}
desc, err := image.Config(ctx)
if err != nil {
return nil, fmt.Errorf("failed to get image config descriptor: %v", err)
}
id := desc.Digest.String()
rb, err := content.ReadBlob(ctx, provider, desc.Digest)
if err != nil {
return nil, fmt.Errorf("failed to read image config from content store: %v", err)
}
var ociimage imagespec.Image
if err := json.Unmarshal(rb, &ociimage); err != nil {
return nil, fmt.Errorf("failed to unmarshal image config %s: %v", rb, err)
}
return &imageInfo{
id: id,
chainID: chainID,
size: size,
config: ociimage.Config,
}, nil
}

View File

@ -110,11 +110,12 @@ func (c *criContainerdService) PullImage(ctx context.Context, r *runtime.PullIma
}
}
// Get image information.
chainID, size, config, id, err := c.getImageInfo(ctx, imageRef)
info, err := getImageInfo(ctx, image, c.client.ContentStore())
if err != nil {
return nil, fmt.Errorf("failed to get image %q information: %v", imageRef, err)
return nil, fmt.Errorf("failed to get image information: %v", err)
}
imageID := id.String()
imageID := info.id
if err := c.createImageReference(ctx, imageID, image.Target()); err != nil {
return nil, fmt.Errorf("failed to update image reference %q: %v", imageID, err)
}
@ -122,9 +123,9 @@ func (c *criContainerdService) PullImage(ctx context.Context, r *runtime.PullIma
repoTag, repoDigest)
img := imagestore.Image{
ID: imageID,
ChainID: chainID.String(),
Size: size,
Config: config,
ChainID: info.chainID.String(),
Size: info.size,
Config: &info.config,
Image: image,
}
if repoDigest != "" {

View File

@ -135,7 +135,7 @@ func (c *criContainerdService) RunPodSandbox(ctx context.Context, r *runtime.Run
containerd.WithNewSnapshotView(id, image.Image),
containerd.WithSpec(spec, specOpts...),
containerd.WithContainerLabels(labels),
containerd.WithRuntime(defaultRuntime)}
containerd.WithRuntime(defaultRuntime, nil)}
container, err := c.client.NewContainer(ctx, id, opts...)
if err != nil {
return nil, fmt.Errorf("failed to create containerd container: %v", err)

View File

@ -1,6 +1,6 @@
github.com/blang/semver v3.1.0
github.com/boltdb/bolt v1.3.0-58-ge9cf4fa
github.com/containerd/containerd cf09e32618398fc59fcb45bcfe9b4c0335972733
github.com/containerd/containerd c1c2aafffec89aefaff2ba80b81be2277b2903dd
github.com/containerd/continuity cf279e6ac893682272b4479d4c67fd3abf878b4e
github.com/containerd/fifo fbfb6a11ec671efbe94ad1c12c2e98773f19e1e6
github.com/containerd/cgroups 7a5fdd8330119dc70d850260db8f3594d89d6943

View File

@ -192,6 +192,11 @@ For sync communication we have a community slack with a #containerd channel that
**Slack:** https://dockr.ly/community
### Reporting security issues
__If you are reporting a security issue, please follow the responsible
disclosure guidelines and reach out discreetly at containerd-security@googlegroups.com__.
## Copyright and license
Copyright ©2016-2017 Docker, Inc. All rights reserved, except as follows. Code

View File

@ -1,18 +0,0 @@
// +build linux
package containerd
import (
"context"
"github.com/containerd/containerd/containers"
specs "github.com/opencontainers/runtime-spec/specs-go"
)
// WithApparmor sets the provided apparmor profile to the spec
func WithApparmorProfile(profile string) SpecOpts {
return func(_ context.Context, _ *Client, _ *containers.Container, s *specs.Spec) error {
s.Process.ApparmorProfile = profile
return nil
}
}

View File

@ -5,6 +5,8 @@ import (
"github.com/containerd/containerd/containers"
"github.com/containerd/containerd/errdefs"
"github.com/containerd/containerd/typeurl"
"github.com/gogo/protobuf/types"
"github.com/opencontainers/image-spec/identity"
"github.com/pkg/errors"
)
@ -14,10 +16,21 @@ type NewContainerOpts func(ctx context.Context, client *Client, c *containers.Co
// WithRuntime allows a user to specify the runtime name and additional options that should
// be used to create tasks for the container
func WithRuntime(name string) NewContainerOpts {
func WithRuntime(name string, options interface{}) NewContainerOpts {
return func(ctx context.Context, client *Client, c *containers.Container) error {
var (
any *types.Any
err error
)
if options != nil {
any, err = typeurl.MarshalAny(options)
if err != nil {
return err
}
}
c.Runtime = containers.RuntimeInfo{
Name: name,
Name: name,
Options: any,
}
return nil
}

View File

@ -185,11 +185,11 @@ func validateTopic(topic string) error {
}
if topic[0] != '/' {
return errors.Wrapf(errdefs.ErrInvalidArgument, "must start with '/'", topic)
return errors.Wrapf(errdefs.ErrInvalidArgument, "must start with '/'")
}
if len(topic) == 1 {
return errors.Wrapf(errdefs.ErrInvalidArgument, "must have at least one component", topic)
return errors.Wrapf(errdefs.ErrInvalidArgument, "must have at least one component")
}
components := strings.Split(topic[1:], "/")

View File

@ -20,10 +20,12 @@ type Image interface {
Target() ocispec.Descriptor
// Unpack unpacks the image's content into a snapshot
Unpack(context.Context, string) error
// RootFS returns the image digests
// RootFS returns the unpacked diffids that make up images rootfs.
RootFS(ctx context.Context) ([]digest.Digest, error)
// Size returns the image size
// Size returns the total size of the image's packed resources.
Size(ctx context.Context) (int64, error)
// Config descriptor for the image.
Config(ctx context.Context) (ocispec.Descriptor, error)
}
var _ = (Image)(&image{})
@ -52,6 +54,11 @@ func (i *image) Size(ctx context.Context) (int64, error) {
return i.i.Size(ctx, provider)
}
func (i *image) Config(ctx context.Context) (ocispec.Descriptor, error) {
provider := i.client.ContentStore()
return i.i.Config(ctx, provider)
}
func (i *image) Unpack(ctx context.Context, snapshotterName string) error {
layers, err := i.getLayers(ctx)
if err != nil {

View File

@ -7,7 +7,9 @@ const (
TaskExitEventTopic = "/tasks/exit"
TaskDeleteEventTopic = "/tasks/delete"
TaskExecAddedEventTopic = "/tasks/exec-added"
TaskExecStartedEventTopic = "/tasks/exec-started"
TaskPausedEventTopic = "/tasks/paused"
TaskResumedEventTopic = "/tasks/resumed"
TaskCheckpointedEventTopic = "/tasks/checkpointed"
TaskUnknownTopic = "/tasks/?"
)

View File

@ -2,10 +2,10 @@ package runtime
import (
"context"
"errors"
"sync"
"github.com/containerd/containerd/namespaces"
"github.com/pkg/errors"
)
var (
@ -75,7 +75,7 @@ func (l *TaskList) AddWithNamespace(namespace string, t Task) error {
l.tasks[namespace] = make(map[string]Task)
}
if _, ok := l.tasks[namespace][id]; ok {
return ErrTaskAlreadyExists
return errors.Wrap(ErrTaskAlreadyExists, id)
}
l.tasks[namespace][id] = t
return nil

View File

@ -34,8 +34,9 @@ golang.org/x/sync 450f422ab23cf9881c94e2db30cac0eb1b7cf80c
github.com/BurntSushi/toml v0.2.0-21-g9906417
github.com/grpc-ecosystem/go-grpc-prometheus 6b7015e65d366bf3f19b2b2a000a831940f0f7e0
github.com/Microsoft/go-winio v0.4.4
github.com/Microsoft/hcsshim v0.6.3
github.com/Microsoft/opengcs v0.3.2
github.com/boltdb/bolt e9cf4fae01b5a8ff89d0ec6b32f0d9c9f79aefdd
github.com/Microsoft/hcsshim v0.6.1
github.com/Azure/go-ansiterm 19f72df4d05d31cbe1c56bfc8045c96babff6c7e
google.golang.org/genproto d80a6e20e776b0b17a324d0ba1ab50a39c8e8944
golang.org/x/text 19e51611da83d6be54ddafce4a4af510cb3e9ea4