Python 3 Falcon API example

app.py

import sys
import signal
import falcon


class HealthResource:
    def on_get(self, req, resp):
        resp.media = {'status': 'OK', 'health': 1.0}


def sigterm_handler(signum, frame):
    sys.exit(1)


def main(args):
    from wsgiref import simple_server
    signal.signal(signal.SIGTERM, sigterm_handler)
    httpd = simple_server.make_server('0.0.0.0', 8080, api)
    httpd.serve_forever()


api = falcon.API()
api.add_route('/healthz', HealthResource())

if __name__ == '__main__':
    main(sys.argv[1:])

docker-compose.yml

version: '2'

services:
  api:
    build: .
    image: myapp/api
    container_name: myapp-api
    ports:
      - 8080:8080
    volumes:
      - .:/app

Dockerfile

FROM python:3.7-slim
RUN pip install --no-cache-dir falcon
ENTRYPOINT ["python", "app.py"]
WORKDIR /app
COPY . .