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manifest.go
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manifest.go
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package registry
import (
"bytes"
"io/ioutil"
"net/http"
manifestV1 "github.com/docker/distribution/manifest/schema1"
manifestV2 "github.com/docker/distribution/manifest/schema2"
digest "github.com/opencontainers/go-digest"
)
func (registry *Registry) Manifest(repository, reference string) (*manifestV1.SignedManifest, error) {
url := registry.url("/v2/%s/manifests/%s", repository, reference)
registry.Logf("registry.manifest.get url=%s repository=%s reference=%s", url, repository, reference)
req, err := http.NewRequest("GET", url, nil)
if err != nil {
return nil, err
}
req.Header.Set("Accept", manifestV1.MediaTypeManifest)
resp, err := registry.Client.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
signedManifest := &manifestV1.SignedManifest{}
err = signedManifest.UnmarshalJSON(body)
if err != nil {
return nil, err
}
return signedManifest, nil
}
func (registry *Registry) ManifestV2(repository, reference string) (*manifestV2.DeserializedManifest, error) {
url := registry.url("/v2/%s/manifests/%s", repository, reference)
registry.Logf("registry.manifest.get url=%s repository=%s reference=%s", url, repository, reference)
req, err := http.NewRequest("GET", url, nil)
if err != nil {
return nil, err
}
req.Header.Set("Accept", manifestV2.MediaTypeManifest)
resp, err := registry.Client.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
deserialized := &manifestV2.DeserializedManifest{}
err = deserialized.UnmarshalJSON(body)
if err != nil {
return nil, err
}
return deserialized, nil
}
func (registry *Registry) ManifestDigest(repository, reference string) (digest.Digest, error) {
url := registry.url("/v2/%s/manifests/%s", repository, reference)
registry.Logf("registry.manifest.head url=%s repository=%s reference=%s", url, repository, reference)
resp, err := registry.Client.Head(url)
if resp != nil {
defer resp.Body.Close()
}
if err != nil {
return "", err
}
return digest.Parse(resp.Header.Get("Docker-Content-Digest"))
}
func (registry *Registry) DeleteManifest(repository string, digest digest.Digest) error {
url := registry.url("/v2/%s/manifests/%s", repository, digest)
registry.Logf("registry.manifest.delete url=%s repository=%s reference=%s", url, repository, digest)
req, err := http.NewRequest("DELETE", url, nil)
if err != nil {
return err
}
resp, err := registry.Client.Do(req)
if resp != nil {
defer resp.Body.Close()
}
if err != nil {
return err
}
return nil
}
func (registry *Registry) PutManifest(repository, reference string, signedManifest *manifestV1.SignedManifest) error {
url := registry.url("/v2/%s/manifests/%s", repository, reference)
registry.Logf("registry.manifest.put url=%s repository=%s reference=%s", url, repository, reference)
body, err := signedManifest.MarshalJSON()
if err != nil {
return err
}
buffer := bytes.NewBuffer(body)
req, err := http.NewRequest("PUT", url, buffer)
if err != nil {
return err
}
req.Header.Set("Content-Type", manifestV1.MediaTypeManifest)
resp, err := registry.Client.Do(req)
if resp != nil {
defer resp.Body.Close()
}
return err
}