62 lines
1.5 KiB
Go
62 lines
1.5 KiB
Go
/*
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* Copyright 2024 the KubeSphere Authors.
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* Please refer to the LICENSE file in the root directory of the project.
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* https://github.com/kubesphere/kubesphere/blob/master/LICENSE
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*/
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package registries
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"github.com/docker/distribution/manifest/schema2"
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"github.com/emicklei/go-restful/v3"
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"k8s.io/klog/v2"
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)
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var statusUnauthorized = "Not found or unauthorized"
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// Digest returns the digest for an image.
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func (r *Registry) ImageManifest(image Image, token string) (*ImageManifest, error) {
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url := r.GetDigestUrl(image)
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req, err := http.NewRequest("GET", url, nil)
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if err != nil {
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return nil, err
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}
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req.Header.Add("Accept", schema2.MediaTypeManifest)
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if token != "" {
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req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", token))
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}
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resp, err := r.Client.Do(req)
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if err != nil {
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return nil, err
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}
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defer resp.Body.Close()
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respBody, _ := GetRespBody(resp)
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if resp.StatusCode != http.StatusOK {
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if resp.StatusCode == http.StatusNotFound || resp.StatusCode == http.StatusUnauthorized {
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klog.Error(statusUnauthorized)
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return nil, restful.NewError(resp.StatusCode, statusUnauthorized)
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}
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klog.Errorf("got response: statusCode is '%d', body is '%s'\n", resp.StatusCode, respBody)
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return nil, restful.NewError(resp.StatusCode, "got image manifest failed")
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}
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imageManifest := &ImageManifest{}
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err = json.Unmarshal(respBody, imageManifest)
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return imageManifest, err
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}
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func (r *Registry) GetDigestUrl(image Image) string {
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url := r.url("/v2/%s/manifests/%s", image.Path, image.Tag)
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return url
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}
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