init

.env

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+FLASK_PORT=5000
+FLASK_HOST=0.0.0.0
+FLASK_ENV=development 

.github/workflows/docker-build.yml

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+name: 打包发布docker镜像
+on:
+  push:
+    branches: [ main ]
+
+jobs:
+  build-push:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v4
+
+      - name: Login to Docker Registry
+        uses: docker/login-action@v3
+        with:
+          registry: your-registry.com  # 替换为自建 Registry 的地址
+          username: ${{ secrets.DOCKER_USER }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile  # 指定 Dockerfile 路径
+          tags: your-registry.com/your-image:latest  # 镜像标签（包含 Registry 地址）
+          push: true

Dockerfile

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+FROM python:3.10-alpine
+
+RUN pip install -r requirements.txt
+
+COPY . .
+
+CMD ["python", "main.py"]

main.py

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+from flask import Flask, jsonify
+import os
+from dotenv import load_dotenv
+
+# 加载环境变量
+load_dotenv()
+
+app = Flask(__name__)
+
+@app.route('/')
+def home():
+    return jsonify({
+        "message": "欢迎使用 Flask API",
+        "status": "running",
+        "version": "1.0.0"
+    })
+
+@app.route('/health')
+def health_check():
+    return jsonify({
+        "status": "healthy",
+        "timestamp": "2024-03-21"
+    })
+
+@app.route('/info')
+def info():
+    return jsonify({
+        "hostname": os.uname().nodename,
+        "python_version": os.sys.version,
+        "environment": os.getenv('FLASK_ENV', 'production'),
+        "port": os.getenv('FLASK_PORT', '5000')
+    })
+
+if __name__ == '__main__':
+    port = int(os.getenv('FLASK_PORT', 5000))
+    host = os.getenv('FLASK_HOST', '0.0.0.0')
+    app.run(host=host, port=port)

requirements.txt

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+flask==3.0.2
+gunicorn==21.2.0
+python-dotenv==1.0.1