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registry: Do not push to mirrors

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This patch splits LookupEndpoints into LookupPullEndpoints and
LookupPushEndpoints so that mirrors added with --registry-mirror are
skipped in the list returned by LookupPushEndpoints.

Fixes https://github.com/docker/distribution/issues/823

Signed-off-by: Tibor Vass <tibor@docker.com>
This commit is contained in:
Tibor Vass 2015-08-06 17:41:59 -04:00
parent c471b7aba5
commit b899977ee2
3 changed files with 30 additions and 17 deletions
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2
graph/pull.go
View file

@ -76,7 +76,7 @@ func (s *TagStore) Pull(image string, tag string, imagePullConfig *ImagePullConf
return err return err
} }
endpoints, err := s.registryService.LookupEndpoints(repoInfo.CanonicalName) endpoints, err := s.registryService.LookupPullEndpoints(repoInfo.CanonicalName)
if err != nil { if err != nil {
return err return err
} }

2
graph/push.go
View file

@ -77,7 +77,7 @@ func (s *TagStore) Push(localName string, imagePushConfig *ImagePushConfig) erro
return err return err
} }
endpoints, err := s.registryService.LookupEndpoints(repoInfo.CanonicalName) endpoints, err := s.registryService.LookupPushEndpoints(repoInfo.CanonicalName)
if err != nil { if err != nil {
return err return err
} }

43
registry/service.go
View file

@ -109,27 +109,40 @@ func (s *Service) tlsConfigForMirror(mirror string) (*tls.Config, error) {
return s.TLSConfig(mirrorURL.Host) return s.TLSConfig(mirrorURL.Host)
} }
// LookupEndpoints creates an list of endpoints to try, in order of preference. // LookupPullEndpoints creates an list of endpoints to try to pull from, in order of preference.
// It gives preference to v2 endpoints over v1, mirrors over the actual // It gives preference to v2 endpoints over v1, mirrors over the actual
// registry, and HTTPS over plain HTTP. // registry, and HTTPS over plain HTTP.
func (s *Service) LookupEndpoints(repoName string) (endpoints []APIEndpoint, err error) { func (s *Service) LookupPullEndpoints(repoName string) (endpoints []APIEndpoint, err error) {
return s.lookupEndpoints(repoName, false)
}
// LookupPushEndpoints creates an list of endpoints to try to push to, in order of preference.
// It gives preference to v2 endpoints over v1, and HTTPS over plain HTTP.
// Mirrors are not included.
func (s *Service) LookupPushEndpoints(repoName string) (endpoints []APIEndpoint, err error) {
return s.lookupEndpoints(repoName, true)
}
func (s *Service) lookupEndpoints(repoName string, isPush bool) (endpoints []APIEndpoint, err error) {
var cfg = tlsconfig.ServerDefault var cfg = tlsconfig.ServerDefault
tlsConfig := &cfg tlsConfig := &cfg
if strings.HasPrefix(repoName, DefaultNamespace+"/") { if strings.HasPrefix(repoName, DefaultNamespace+"/") {
// v2 mirrors if !isPush {
for _, mirror := range s.Config.Mirrors { // v2 mirrors for pull only
mirrorTLSConfig, err := s.tlsConfigForMirror(mirror) for _, mirror := range s.Config.Mirrors {
if err != nil { mirrorTLSConfig, err := s.tlsConfigForMirror(mirror)
return nil, err if err != nil {
return nil, err
}
endpoints = append(endpoints, APIEndpoint{
URL: mirror,
// guess mirrors are v2
Version: APIVersion2,
Mirror: true,
TrimHostname: true,
TLSConfig: mirrorTLSConfig,
})
} }
endpoints = append(endpoints, APIEndpoint{
URL: mirror,
// guess mirrors are v2
Version: APIVersion2,
Mirror: true,
TrimHostname: true,
TLSConfig: mirrorTLSConfig,
})
} }
// v2 registry // v2 registry
endpoints = append(endpoints, APIEndpoint{ endpoints = append(endpoints, APIEndpoint{