79 lines
2.9 KiB
Go
79 lines
2.9 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package server
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import (
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"fmt"
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"github.com/containerd/containerd/images"
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"github.com/golang/glog"
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"golang.org/x/net/context"
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runtime "k8s.io/kubernetes/pkg/kubelet/apis/cri/v1alpha1"
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"github.com/kubernetes-incubator/cri-containerd/pkg/metadata"
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)
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// RemoveImage removes the image.
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// TODO(mikebrow): harden api
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// TODO(random-liu): Update CRI to pass image reference instead of ImageSpec. (See
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// kubernetes/kubernetes#46255)
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// TODO(random-liu): We should change CRI to distinguish image id and image spec.
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// Remove the whole image no matter the it's image id or reference. This is the
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// semantic defined in CRI now.
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func (c *criContainerdService) RemoveImage(ctx context.Context, r *runtime.RemoveImageRequest) (retRes *runtime.RemoveImageResponse, retErr error) {
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glog.V(2).Infof("RemoveImage %q", r.GetImage().GetImage())
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defer func() {
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if retErr == nil {
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glog.V(2).Infof("RemoveImage %q returns successfully", r.GetImage().GetImage())
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}
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}()
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imageID, err := c.localResolve(ctx, r.GetImage().GetImage())
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if err != nil {
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return nil, fmt.Errorf("can not resolve %q locally: %v", r.GetImage().GetImage(), err)
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}
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if imageID == "" {
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// return empty without error when image not found.
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return &runtime.RemoveImageResponse{}, nil
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}
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meta, err := c.imageMetadataStore.Get(imageID)
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if err != nil {
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if metadata.IsNotExistError(err) {
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return &runtime.RemoveImageResponse{}, nil
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}
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return nil, fmt.Errorf("an error occurred when get image %q metadata: %v", imageID, err)
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}
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// Also include repo digest, because if user pull image with digest,
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// there will also be a corresponding repo digest reference.
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for _, ref := range append(meta.RepoTags, meta.RepoDigests...) {
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// TODO(random-liu): Containerd should schedule a garbage collection immediately,
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// and we may want to wait for the garbage collection to be over here.
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err = c.imageStoreService.Delete(ctx, ref)
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if err == nil || images.IsNotFound(err) {
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continue
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}
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return nil, fmt.Errorf("failed to delete image reference %q for image %q: %v", ref, imageID, err)
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}
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err = c.imageMetadataStore.Delete(imageID)
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if err != nil {
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if metadata.IsNotExistError(err) {
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return &runtime.RemoveImageResponse{}, nil
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}
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return nil, fmt.Errorf("an error occurred when delete image %q matadata: %v", imageID, err)
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}
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return &runtime.RemoveImageResponse{}, nil
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}
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