How to debug multiple docker-compose services in PyCharm?

Given multiple flask services running in multiple docker containers. A typical docker-compose looks like this

version: '3'

services:
  service1:
    environment:
      FLASK_DEBUG: 1
    volumes:
      - .:/code
    image: flask-service1
    build:
      context: .
      dockerfile: 'service1/Dockerfile'
    ports:
      - "5001:5001"
  service2:
    environment:
      FLASK_DEBUG: 1
    volumes:
      - .:/code
    image: flask-service2
    build:
      context: .
      dockerfile: 'service2/Dockerfile'
    ports:
      - "5002:5002"

Services are started from PyCharm entry point which runs docker-compose up. Now, both services are up and running, I need to enable stopping at breakpoints.

Each service is a flask app running on a different port:

from flask import Flask

app = Flask(__name__)


@app.route('/')
def hello_world():
    return 'Hello world!'


if __name__ == '__main__':
    app.run()