[FLINK-34953][ci] Add github ci for flink-web to auto commit build files

.github/workflows/docs.yml

@@ -0,0 +1,66 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: "Flink Web CI"
+on:
+  pull_request:
+  push:
+    branches:
+      - asf-site
+  workflow_dispatch:
+
+jobs:
+  build-documentation:
+    if: github.repository == 'apache/flink-web'
+    runs-on: ubuntu-latest
+    permissions:
+      # Give the default GITHUB_TOKEN write permission to commit and push the changed files back to the repository.
+      contents: write
+    steps:
+        - name: Checkout repository
+          uses: actions/checkout@v4
+          with:
+            submodules: true
+            fetch-depth: 0
+
+        - name: Setup Hugo
+          uses: peaceiris/actions-hugo@v3
+          with:
+            hugo-version: '0.119.0'
+            extended: true
+
+        - name: Build website
+          run: |
+            # Remove old content folder and create new one
+            rm -r -f content && mkdir content
+
+            # Build the website
+            hugo --source docs --destination target
+
+            # Move newly generated static HTML to the content serving folder
+            mv docs/target/* content
+
+            # Copy quickstarts, rewrite rules and Google Search Console identifier
+            cp -r _include/. content
+
+            # Get the current commit author
+            echo "author=$(git log -1 --pretty=\"%an <%ae>\")" >> $GITHUB_OUTPUT
+
+        - name: Commit and push website build
+          if: ${{ github.event_name == 'push' || github.event_name == 'workflow_dispatch' }}
+          uses: stefanzweifel/git-auto-commit-action@8621497c8c39c72f3e2a999a26b4ca1b5058a842
+          with:
+            commit_author: ${{ steps.last-commit.outputs.author }}
+            commit_message: Rebuild website

docs/content.zh/how-to-contribute/improve-website.md

@@ -97,11 +97,4 @@ Flink 项目通过 [GitHub Mirror](https://github.com/apache/flink-web) 以提
 
 ### 合并 pull request
 
-默认所有的修改仅在源文件上完成（对 `content/` 目录中自动生成的文件没有修改）。 在推送网站更改之前，请运行构建脚本。
-
-```
-./build.sh
-```
-
-将更改添加到 `content/` 目录作为附加提交，并将更改推送到 ASF 基本仓库。
-
+默认所有的修改仅在源文件上完成（对 `content/` 目录中自动生成的文件没有修改）。

docs/content/how-to-contribute/improve-website.md

@@ -97,10 +97,4 @@ Details on how to set the credentials for the ASF git repository are [linked her
 
 ### Merging a pull request
 
-Contributions are expected to be done on the source files only (no modifications on the compiled files in the `content/` directory.). Before pushing a website change, please run the build script
-
-```
-./build.sh
-```
-
-add the changes to the `content/` directory as an additional commit and push the changes to the ASF base repository.
+Contributions are expected to be done on the source files only (no modifications on the compiled files in the `content/` directory.).