add dockerhub action

.github/workflows/dockerhub_proxy.yml

@@ -0,0 +1,30 @@
+name: Build and push to CloudFlare Worker
+
+on: 
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Spellcheck
+    runs-on: ubuntu-latest
+    steps:
+    # The checkout step
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Build cloudflare.js for Dockerhub proxy
+        run: |
+          cd docker
+          curl -o https://raw.githubusercontent.com/Websoft9/doc.websoft9.com/refs/heads/main/docs/reference/_include/dockerhub-proxy.md
+          echo "Insert proxy lists to cloudflare.js"
+
+      - name: Deploy to cloudflare
+        uses: cloudflare/wrangler-action@v3
+        with:
+          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+          preCommands: cd docker
+
+      - name: Commit and push changes
+        uses: stefanzweifel/git-auto-commit-action@v4
+        with:
+          commit_message: update cloudflare.js

docker/cloudflare.js

@@ -0,0 +1,27 @@
+addEventListener('fetch', event => {
+    event.respondWith(handleRequest(event.request))
+  })
+  
+  // This data source from: https://raw.githubusercontent.com/Websoft9/doc.websoft9.com/refs/heads/main/docs/reference/_include/dockerhub-proxy.md
+  const backends = [
+    'https://docker.rainbond.cc',
+    'https://docker.1panel.dev',
+    'https://docker.fxxk.dedyn.io',
+    'https://a.ussh.net',
+    'https://docker.zhai.cm'
+  ]
+  
+  async function handleRequest(request) {
+    // 随机选择一个后端服务器
+    const backend = backends[Math.floor(Math.random() * backends.length)]
+    
+    // 构建新的请求 URL
+    const url = new URL(request.url)
+    url.hostname = new URL(backend).hostname
+    
+    // 转发请求到选定的后端服务器
+    const modifiedRequest = new Request(url, request)
+    const response = await fetch(modifiedRequest)
+    return response
+  }
+