78 lines
2.5 KiB
Go
78 lines
2.5 KiB
Go
/*
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Copyright The containerd 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 images
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import (
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"context"
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"fmt"
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"sync"
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"github.com/containerd/containerd/v2/core/images"
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"github.com/containerd/log"
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"github.com/containerd/platforms"
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)
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// LoadImages checks all existing images to ensure they are ready to
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// be used for CRI. It may try to recover images which are not ready
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// but will only log errors, not return any.
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func (c *CRIImageService) CheckImages(ctx context.Context) error {
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// TODO: Move way from `client.ListImages` to directly using image store
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cImages, err := c.client.ListImages(ctx)
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if err != nil {
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return fmt.Errorf("unable to list images: %w", err)
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}
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// TODO: Support all snapshotter
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snapshotter := c.config.Snapshotter
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var wg sync.WaitGroup
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for _, i := range cImages {
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wg.Add(1)
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i := i
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go func() {
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defer wg.Done()
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// TODO: Check platform/snapshot combination. Snapshot check should come first
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ok, _, _, _, err := images.Check(ctx, i.ContentStore(), i.Target(), platforms.Default())
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if err != nil {
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log.G(ctx).WithError(err).Errorf("Failed to check image content readiness for %q", i.Name())
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return
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}
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if !ok {
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log.G(ctx).Warnf("The image content readiness for %q is not ok", i.Name())
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return
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}
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// Checking existence of top-level snapshot for each image being recovered.
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// TODO: This logic should be done elsewhere and owned by the image service
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unpacked, err := i.IsUnpacked(ctx, snapshotter)
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if err != nil {
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log.G(ctx).WithError(err).Warnf("Failed to check whether image is unpacked for image %s", i.Name())
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return
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}
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if !unpacked {
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log.G(ctx).Warnf("The image %s is not unpacked.", i.Name())
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// TODO(random-liu): Consider whether we should try unpack here.
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}
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if err := c.UpdateImage(ctx, i.Name()); err != nil {
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log.G(ctx).WithError(err).Warnf("Failed to update reference for image %q", i.Name())
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return
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}
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log.G(ctx).Debugf("Loaded image %q", i.Name())
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}()
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}
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wg.Wait()
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return nil
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}
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