使用方法

下面这行命令是我个人搭建分享的加速镜像，workers有每日请求次数限制，如使用人数过多将会收回。如你有大量的docker pull需求，还请自行搭建！！！

docker pull docker-mirror.vrxiaojie.top/xxx

其中，'xxx’需要改为要加速的镜像仓库，例如

docker pull docker-mirror.vrxiaojie.top/mysql/mysql-server

拉取Official（官方）镜像：在官方镜像名前面加上library，例如

docker pull docker-mirror.vrxiaojie.top/library/nginx

这是拉取官方镜像仓库的nginx镜像

搭建教程

首先确保你有一个托管于Cloudflare的域名，然后进入Workers and Pages，创建应用程序

在下一个页面点击创建worker

为项目命名，我写的是mirror，然后点击保存-完成。
点击编辑代码

将以下代码覆盖进代码编辑页中
请注意修改第5行，把"你的域名"改为你最后要自定义域的域名，例如我这里把"你的域名"改为"mirror.vrxiaojie.top"

'use strict'
 
const hub_host = 'registry-1.docker.io'
const auth_url = 'https://auth.docker.io'
const workers_url = 'https://你的域名'
/**
 * static files (404.html, sw.js, conf.js)
 */
 
/** @type {RequestInit} */
const PREFLIGHT_INIT = {
    status: 204,
    headers: new Headers({
        'access-control-allow-origin': '*',
        'access-control-allow-methods': 'GET,POST,PUT,PATCH,TRACE,DELETE,HEAD,OPTIONS',
        'access-control-max-age': '1728000',
    }),
}
 
/**
 * @param {any} body
 * @param {number} status
 * @param {Object<string, string>} headers
 */
function makeRes(body, status = 200, headers = {}) {
    headers['access-control-allow-origin'] = '*'
    return new Response(body, {status, headers})
}
 
 
/**
 * @param {string} urlStr
 */
function newUrl(urlStr) {
    try {
        return new URL(urlStr)
    } catch (err) {
        return null
    }
}
 
 
addEventListener('fetch', e => {
    const ret = fetchHandler(e)
        .catch(err => makeRes('cfworker error:\n' + err.stack, 502))
    e.respondWith(ret)
})
 
 
/**
 * @param {FetchEvent} e
 */
async function fetchHandler(e) {
  const getReqHeader = (key) => e.request.headers.get(key);
 
  let url = new URL(e.request.url);
 
  if (url.pathname === '/token') {
      let token_parameter = {
        headers: {
        'Host': 'auth.docker.io',
        'User-Agent': getReqHeader("User-Agent"),
        'Accept': getReqHeader("Accept"),
        'Accept-Language': getReqHeader("Accept-Language"),
        'Accept-Encoding': getReqHeader("Accept-Encoding"),
        'Connection': 'keep-alive',
        'Cache-Control': 'max-age=0'
        }
      };
      let token_url = auth_url + url.pathname + url.search
      return fetch(new Request(token_url, e.request), token_parameter)
  }
 
  url.hostname = hub_host;
  
  let parameter = {
    headers: {
      'Host': hub_host,
      'User-Agent': getReqHeader("User-Agent"),
      'Accept': getReqHeader("Accept"),
      'Accept-Language': getReqHeader("Accept-Language"),
      'Accept-Encoding': getReqHeader("Accept-Encoding"),
      'Connection': 'keep-alive',
      'Cache-Control': 'max-age=0'
    },
    cacheTtl: 3600
  };
 
  if (e.request.headers.has("Authorization")) {
    parameter.headers.Authorization = getReqHeader("Authorization");
  }
 
  let original_response = await fetch(new Request(url, e.request), parameter)
  let original_response_clone = original_response.clone();
  let original_text = original_response_clone.body;
  let response_headers = original_response.headers;
  let new_response_headers = new Headers(response_headers);
  let status = original_response.status;
 
  if (new_response_headers.get("Www-Authenticate")) {
    let auth = new_response_headers.get("Www-Authenticate");
    let re = new RegExp(auth_url, 'g');
    new_response_headers.set("Www-Authenticate", response_headers.get("Www-Authenticate").replace(re, workers_url));
  }
 
  if (new_response_headers.get("Location")) {
    return httpHandler(e.request, new_response_headers.get("Location"))
  }
 
  let response = new Response(original_text, {
            status,
            headers: new_response_headers
        })
  return response;
  
}
 
 
/**
 * @param {Request} req
 * @param {string} pathname
 */
function httpHandler(req, pathname) {
    const reqHdrRaw = req.headers
 
    // preflight
    if (req.method === 'OPTIONS' &&
        reqHdrRaw.has('access-control-request-headers')
    ) {
        return new Response(null, PREFLIGHT_INIT)
    }
 
    let rawLen = ''
 
    const reqHdrNew = new Headers(reqHdrRaw)
 
    const refer = reqHdrNew.get('referer')
 
    let urlStr = pathname
    
    const urlObj = newUrl(urlStr)
 
    /** @type {RequestInit} */
    const reqInit = {
        method: req.method,
        headers: reqHdrNew,
        redirect: 'follow',
        body: req.body
    }
    return proxy(urlObj, reqInit, rawLen, 0)
}
 
 
/**
 *
 * @param {URL} urlObj
 * @param {RequestInit} reqInit
 */
async function proxy(urlObj, reqInit, rawLen) {
    const res = await fetch(urlObj.href, reqInit)
    const resHdrOld = res.headers
    const resHdrNew = new Headers(resHdrOld)
 
    // verify
    if (rawLen) {
        const newLen = resHdrOld.get('content-length') || ''
        const badLen = (rawLen !== newLen)
 
        if (badLen) {
            return makeRes(res.body, 400, {
                '--error': `bad len: ${newLen}, except: ${rawLen}`,
                'access-control-expose-headers': '--error',
            })
        }
    }
    const status = res.status
    resHdrNew.set('access-control-expose-headers', '*')
    resHdrNew.set('access-control-allow-origin', '*')
    resHdrNew.set('Cache-Control', 'max-age=1500')
    
    resHdrNew.delete('content-security-policy')
    resHdrNew.delete('content-security-policy-report-only')
    resHdrNew.delete('clear-site-data')
 
    return new Response(res.body, {
        status,
        headers: resHdrNew
    })
}

填入代码后，点击部署

由于cloudflare默认分配的workers.dev被污染，因此需要用自定义域名来做访问。
回到刚才设置好的worker中，点击设置

点击触发器-添加自定义域

我这里用的mirror.vrxiaojie.top作为演示。你需要根据自己的域名修改，例如mirror.yourdomain.com，其中yourdomain是你的二级域名，com按实际情况修改为你的顶级域名。完成后点击添加自定义域
注意，这里的域名必须是已经托管在cloudflare下的，否则无法添加。

稍等5~10分钟，待"证书"从”正在初始化”变为“有效”时，方可使用。
进入到你需要docker pull的服务器终端，输入命令

docker pull mirror.vrxiaojie.top/mysql/mysql-server

查看是否正确拉取镜像