ec552567c7
* Docker Desktop Development Environments config * Use cache volumes for pip * Upgrade from Python 3.7 -> Python 3.10 * Use port `8000` to avoid conflicts with Airplay on macOS for default Flask port `5000` * Use `SIGINT` to gracefully stop Flask Signed-off-by: Milas Bowman <milas.bowman@docker.com>
69 lines
2.2 KiB
Markdown
69 lines
2.2 KiB
Markdown
## Compose sample application
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### Python/Flask application
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Project structure:
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```
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.
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├── compose.yaml
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├── app
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├── Dockerfile
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├── requirements.txt
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└── app.py
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```
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[_compose.yaml_](compose.yaml)
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```
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services:
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web:
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build:
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context: app
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target: builder
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ports:
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- '8000:8000'
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```
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## Deploy with docker compose
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```
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$ docker compose up -d
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[+] Building 1.1s (16/16) FINISHED
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=> [internal] load build definition from Dockerfile 0.0s
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... 0.0s
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=> => naming to docker.io/library/flask_web 0.0s
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[+] Running 2/2
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⠿ Network flask_default Created 0.0s
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⠿ Container flask-web-1 Started
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```
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## Expected result
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Listing containers must show one container running and the port mapping as below:
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```
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$ docker compose ps
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NAME COMMAND SERVICE STATUS PORTS
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flask-web-1 "python3 app.py" web running 0.0.0.0:8000->8000/tcp
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```
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After the application starts, navigate to `http://localhost:8000` in your web browser or run:
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```
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$ curl localhost:8000
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Hello World!
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```
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Stop and remove the containers
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```
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$ docker compose down
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```
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## Use with Docker Development Environments
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You can use this sample with the Dev Environments feature of Docker Desktop.
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To develop directly on the services inside containers, use the HTTPS Git url of the sample:
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```
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https://github.com/docker/awesome-compose/tree/master/flask
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```
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