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The --allow-nondistributable-artifacts daemon option specifies registries to which foreign layers should be pushed. (By default, foreign layers are not pushed to registries.) Additionally, to make this option effective, foreign layers are now pulled from the registry if possible, falling back to the URLs in the image manifest otherwise. This option is useful when pushing images containing foreign layers to a registry on an air-gapped network so hosts on that network can pull the images without connecting to another server. Signed-off-by: Noah Treuhaft <noah.treuhaft@docker.com>
82 lines
1.9 KiB
Go
82 lines
1.9 KiB
Go
package registry
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import (
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"net/url"
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"strings"
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"github.com/docker/go-connections/tlsconfig"
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)
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func (s *DefaultService) lookupV2Endpoints(hostname string) (endpoints []APIEndpoint, err error) {
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tlsConfig := tlsconfig.ServerDefault()
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if hostname == DefaultNamespace || hostname == IndexHostname {
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// v2 mirrors
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for _, mirror := range s.config.Mirrors {
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if !strings.HasPrefix(mirror, "http://") && !strings.HasPrefix(mirror, "https://") {
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mirror = "https://" + mirror
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}
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mirrorURL, err := url.Parse(mirror)
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if err != nil {
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return nil, err
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}
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mirrorTLSConfig, err := s.tlsConfigForMirror(mirrorURL)
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if err != nil {
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return nil, err
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}
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endpoints = append(endpoints, APIEndpoint{
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URL: mirrorURL,
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// guess mirrors are v2
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Version: APIVersion2,
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Mirror: true,
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TrimHostname: true,
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TLSConfig: mirrorTLSConfig,
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})
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}
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// v2 registry
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endpoints = append(endpoints, APIEndpoint{
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URL: DefaultV2Registry,
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Version: APIVersion2,
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Official: true,
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TrimHostname: true,
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TLSConfig: tlsConfig,
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})
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return endpoints, nil
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}
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ana := allowNondistributableArtifacts(s.config, hostname)
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tlsConfig, err = s.tlsConfig(hostname)
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if err != nil {
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return nil, err
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}
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endpoints = []APIEndpoint{
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{
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URL: &url.URL{
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Scheme: "https",
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Host: hostname,
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},
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Version: APIVersion2,
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AllowNondistributableArtifacts: ana,
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TrimHostname: true,
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TLSConfig: tlsConfig,
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},
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}
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if tlsConfig.InsecureSkipVerify {
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endpoints = append(endpoints, APIEndpoint{
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URL: &url.URL{
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Scheme: "http",
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Host: hostname,
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},
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Version: APIVersion2,
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AllowNondistributableArtifacts: ana,
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TrimHostname: true,
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// used to check if supposed to be secure via InsecureSkipVerify
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TLSConfig: tlsConfig,
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})
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}
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return endpoints, nil
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}
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