66 lines
2.4 KiB
Go
66 lines
2.4 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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"github.com/containerd/containerd/errdefs"
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"github.com/containerd/containerd/images"
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"github.com/pkg/errors"
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"golang.org/x/net/context"
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runtime "k8s.io/cri-api/pkg/apis/runtime/v1alpha2"
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"github.com/containerd/cri/pkg/store"
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)
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// RemoveImage removes the image.
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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 *criService) RemoveImage(ctx context.Context, r *runtime.RemoveImageRequest) (*runtime.RemoveImageResponse, error) {
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image, err := c.localResolve(r.GetImage().GetImage())
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if err != nil {
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if err == store.ErrNotExist {
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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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return nil, errors.Wrapf(err, "can not resolve %q locally", r.GetImage().GetImage())
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}
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// Remove all image references.
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for i, ref := range image.References {
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var opts []images.DeleteOpt
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if i == len(image.References)-1 {
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// Delete the last image reference synchronously to trigger garbage collection.
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// This is best effort. It is possible that the image reference is deleted by
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// someone else before this point.
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opts = []images.DeleteOpt{images.SynchronousDelete()}
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}
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err = c.client.ImageService().Delete(ctx, ref, opts...)
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if err == nil || errdefs.IsNotFound(err) {
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// Update image store to reflect the newest state in containerd.
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if err := c.imageStore.Update(ctx, ref); err != nil {
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return nil, errors.Wrapf(err, "failed to update image reference %q for %q", ref, image.ID)
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}
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continue
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}
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return nil, errors.Wrapf(err, "failed to delete image reference %q for %q", ref, image.ID)
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}
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return &runtime.RemoveImageResponse{}, nil
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}
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