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distribution: modify warning logic when pulling v2 schema1 manifests

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The warning on pull was incorrectly asking to contact registry admins.
It is kept on push however.

Pulling manifest lists with v2 schema1 manifests will not be supported thus
there is a warning for those, but wording changed to suggest repository author
to upgrade.

Finally, a milder warning on regular pull is kept ONLY for DockerHub users
in order to incite moving away from schema1.

Signed-off-by: Tibor Vass <tibor@docker.com>
This commit is contained in:
Tibor Vass 2019-08-13 18:13:14 +00:00
parent 871994ce2a
commit 647dfe99a5
3 changed files with 10 additions and 9 deletions
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13
distribution/pull_v2.go
View file

@ -392,9 +392,14 @@ func (p *v2Puller) pullV2Tag(ctx context.Context, ref reference.Named, platform
if p.config.RequireSchema2 {
return false, fmt.Errorf("invalid manifest: not schema2")
}
msg := schema1DeprecationMessage(ref)
logrus.Warn(msg)
progress.Message(p.config.ProgressOutput, "", msg)
// give registries time to upgrade to schema2 and only warn if we know a registry has been upgraded long time ago
// TODO: condition to be removed
if reference.Domain(ref) == "docker.io" {
msg := fmt.Sprintf("Image %s uses outdated schema1 manifest format. Please upgrade to a schema2 image for better future compatibility. More information at https://docs.docker.com/registry/spec/deprecated-schema-v1/", ref)
logrus.Warn(msg)
progress.Message(p.config.ProgressOutput, "", msg)
}
id, manifestDigest, err = p.pullSchema1(ctx, ref, v, platform)
if err != nil {
@ -791,7 +796,7 @@ func (p *v2Puller) pullManifestList(ctx context.Context, ref reference.Named, mf
switch v := manifest.(type) {
case *schema1.SignedManifest:
msg := schema1DeprecationMessage(ref)
msg := fmt.Sprintf("[DEPRECATION NOTICE] v2 schema1 manifests in manifest lists are not supported and will break in a future release. Suggest author of %s to upgrade to v2 schema2. More information at https://docs.docker.com/registry/spec/deprecated-schema-v1/", ref)
logrus.Warn(msg)
progress.Message(p.config.ProgressOutput, "", msg)

2
distribution/push_v2.go
View file

@ -188,7 +188,7 @@ func (p *v2Pusher) pushV2Tag(ctx context.Context, ref reference.NamedTagged, id
logrus.Warnf("failed to upload schema2 manifest: %v - falling back to schema1", err)
msg := schema1DeprecationMessage(ref)
msg := fmt.Sprintf("[DEPRECATION NOTICE] registry v2 schema1 support will be removed in an upcoming release. Please contact admins of the %s registry NOW to avoid future disruption. More information at https://docs.docker.com/registry/spec/deprecated-schema-v1/", reference.Domain(ref))
logrus.Warn(msg)
progress.Message(p.config.ProgressOutput, "", msg)

4
distribution/registry.go
View file

@ -156,7 +156,3 @@ func (th *existingTokenHandler) AuthorizeRequest(req *http.Request, params map[s
req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", th.token))
return nil
}
func schema1DeprecationMessage(ref reference.Named) string {
return fmt.Sprintf("[DEPRECATION NOTICE] registry v2 schema1 support will be removed in an upcoming release. Please contact admins of the %s registry NOW to avoid future disruption.", reference.Domain(ref))
}