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pull: fix second cachekey for schema1 

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
docker-19.03
Tonis Tiigi 2019-02-25 17:16:12 -08:00
parent 86aba5ac27
commit 37567fc826
1 changed files with 8 additions and 4 deletions
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12
source/containerimage/pull.go
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@ -159,14 +159,18 @@ func (p *puller) CacheKey(ctx context.Context, index int) (string, bool, error)
}
_, dt, err := imageutil.Config(ctx, ref.String(), p.Resolver, p.ContentStore, &p.Platform)
if err != nil {
// this happens on schema1 images
return "", false, err
}
k := cacheKeyFromConfig(dt).String()
if k == "" {
k, err := mainManifestKey(ctx, desc, p.Platform)
if err != nil {
return "", false, err
}
return k.String(), true, nil
}
return cacheKeyFromConfig(dt).String(), true, nil
return k, true, nil
}
func (p *puller) Snapshot(ctx context.Context) (cache.ImmutableRef, error) {
@ -225,8 +229,8 @@ func cacheKeyFromConfig(dt []byte) digest.Digest {
if err != nil {
return digest.FromBytes(dt)
}
if img.RootFS.Type != "layers" {
return digest.FromBytes(dt)
if img.RootFS.Type != "layers" || len(img.RootFS.DiffIDs) == 0 {
return ""
}
return identity.ChainID(img.RootFS.DiffIDs)
}