## Compose sample application ### Python/Flask application Project structure: ``` . ├── docker-compose.yaml ├── app    ├── Dockerfile    ├── requirements.txt    └── app.py ``` [_docker-compose.yaml_](docker-compose.yaml) ``` services: web: build: app ports: - '5000:5000' ``` ## Deploy with docker-compose ``` $ docker-compose up -d Creating network "flask_default" with the default driver Building web Step 1/6 : FROM python:3.7-alpine ... ... Status: Downloaded newer image for python:3.7-alpine Creating flask_web_1 ... done ``` ## Expected result Listing containers must show two containers running and the port mapping as below: ``` $ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES c126411df522 flask_web "python3 app.py" About a minute ago Up About a minute 0.0.0.0:5000->5000/tcp flask_web_1 ``` After the application starts, navigate to `http://localhost:5000` in your web browser or run: ``` $ curl localhost:5000 Hello World! ``` Stop and remove the containers ``` $ docker-compose down ```