执行 docker pull daocloud.io/busybox 之后  

步骤 请求 返回
1 GET https://daocloud.io/v2/ HTTP/1.1 HTTP/1.1 401 Unauthorized
Server: nginx/1.11.13
Date: Sun, 28 Jan 2018 02:35:17 GMT
Content-Type: application/json; charset=utf-8
Content-Length: 87
Connection: close
Docker-Distribution-Api-Version: registry/2.0
Www-Authenticate: Bearer realm=”https://daohub-auth.daocloud.io/auth”,service=”daocloud.io”
X-Content-Type-Options: nosniff{“errors”:[{“code”:”UNAUTHORIZED”,”message”:”authentication required”,”detail”:null}]}
2 GET https://daohub-auth.daocloud.io/auth?scope=repository%3Abusybox%3Apull&service=daocloud.io HTTP/1.1 HTTP/1.1 200 OK
Server: nginx/1.11.6
Date: Sun, 28 Jan 2018 02:35:17 GMT
Content-Type: application/json
Content-Length: 570
Connection: close
X-Qequest-Time: 0.025{“token”:”eyJ0eXAiOiJKV1QiL省略_J0Mzfs”}
3 GET https://daocloud.io/v2/busybox/manifests/latest HTTP/1.1

  <p>        Authorization: Bearer eyJ0eXAiOiJKV1QiL省略_J0Mzfs</td> 
    
    <td style="width: 1113px;">          HTTP/1.1 200 OK<br /> Server: nginx/1.11.13<br /> Date: Sun, 28 Jan 2018 02:35:18 GMT<br /> Content-Type: application/vnd.docker.distribution.manifest.v2+json<br /> Content-Length: 527<br /> Connection: close<br /> Docker-Content-Digest: sha256:4cee1979ba0bf7db9fc5d28fb7b798ca69ae95a47c5fecf46327720df4ff352d<br /> Docker-Distribution-Api-Version: registry/2.0<br /> Etag: &#8220;sha256:4cee1979ba0bf7db9fc5d28fb7b798ca69ae95a47c5fecf46327720df4ff352d&#8221;<br /> X-Content-Type-Options: nosniff{<br /> &#8220;schemaVersion&#8221;: 2,<br /> &#8220;mediaType&#8221;: &#8220;application/vnd.docker.distribution.manifest.v2+json&#8221;,<br /> &#8220;config&#8221;: {<br /> &#8220;mediaType&#8221;: &#8220;application/vnd.docker.container.image.v1+json&#8221;,<br /> &#8220;size&#8221;: 1497,<br /> &#8220;digest&#8221;: &#8220;sha256:5b0d59026729b68570d99bc4f3f7c31a2e4f2a5736435641565d93e7c25bd2c3&#8221;<br /> },<br /> &#8220;layers&#8221;: [<br /> {<br /> &#8220;mediaType&#8221;: &#8220;application/vnd.docker.image.rootfs.diff.tar.gzip&#8221;,<br /> &#8220;size&#8221;: 723070,<br /> &#8220;digest&#8221;: &#8220;sha256:57310166fe88e0dc63a80ca5c219283a932db0f3969712e2f8a86ada143bf566&#8221;<br /> }<br /> ]<br /> }        </td></tr> 
    
    <tr>          <td style="width: 16px;">            4          </td>
      <td style="width: 1113px;">            GET https://daocloud.io/v2/busybox/blobs/<br /> sha256:5b0d59026729b68570d99bc4f3f7c31a2e4f2a5736435641565d93e7c25bd2c3 HTTP/1.1</p> 
        
        <p>              Authorization: Bearer eyJ省略</td> 
          
          <td style="width: 1113px;">                HTTP/1.1 307 Temporary Redirect<br /> Server: nginx/1.11.13<br /> Date: Sun, 28 Jan 2018 02:35:18 GMT<br /> Content-Type: application/octet-stream<br /> Content-Length: 311<br /> Connection: close<br /> Docker-Distribution-Api-Version: registry/2.0<br /> Location: http://daohub.ufile.ucloud.com.cn/docker/registry/v2/blobs/<br /> sha256/5b/5b0d59026729b68570d99bc4f3f7c31a2e4f2a5736435641565d93e7c25bd2c3/data?Expires=1517107218&Signature=Q72RCd%省略%3D&UCloudPublicKey=mhEYuIyt6tZwLlE省略Blg%2Bc<br /> X-Content-Type-Options: nosniff&nbsp;              </td></tr> 
          
          <tr>                <td style="width: 16px;">                  5                </td>
            <td style="width: 1113px;">                  GET http://daohub.ufile.ucloud.com.cn/docker/registry/v2/blobs/<br /> sha256/5b/5b0d59026729b68570d99bc4f3f7c31a2e4f2a5736435641565d93e7c25bd2c3/data?Expires=1517107218&Signature=Q72RCd%省略%3D&UCloudPublicKey=mhEYuIyt6tZwLlE省略Blg%2Bc HTTP/1.1                </td>
            <td style="width: 1113px;">                  返回具体文件内容                </td>              </tr></tbody> </table>