run in docker

Dockerfile

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+FROM python:3.13-slim
+WORKDIR /app
+COPY requirements.txt requirements.txt
+RUN pip install --no-cache-dir -r requirements.txt
+COPY . .
+COPY run_waitress.py /run_waitress.py
+RUN chmod +x /run_waitress.py
+EXPOSE 8000
+ENTRYPOINT ["/run_waitress.py"]

docker-compose.yml

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+services:
+  hosts_app:
+    build: .
+    container_name: hosts_app
+    ports:
+      - "${APP_PORT:-5580}:5580"
+    healthcheck:
+      test:
+        [
+          "CMD",
+          "python",
+          "-c",
+          "import urllib.request; import sys; sys.exit(0) if urllib.request.urlopen('http://localhost:8000/').getcode() == 200 else sys.exit(1)"
+        ]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 10s
+    volumes:
+      - .:/app
+      - ./instance:/app/instance
+    restart: unless-stopped