FROM python:3.6

RUN mkdir /web WORKDIR /web ADD . /web/ RUN pip install -r requirements.txt


ENV FLASK_ENV="docker" EXPOSE 5000 CMD ["python", "mongo.py"]

version: '3'
services:
 # Define the Flask web application
 flaskapp:

   # Build the Dockerfile that is in the web directory
   build: ./web

   # Always restart the container regardless of the exit status; try and restart the container indefinitely
   restart: always

   # Expose port 8000 to other containers (not to the host of the machine)
   expose:
     - "8000"

   # Mount the web directory within the container at /home/flask/app/web
  #  volumes:
  #    - ./web:/homvole/flask/app/web

   # Don't create this container until the redis and mongo containers (below) have been created
   depends_on:
     - redis
     - mongo

   # Link the redis and mongo containers together so that they can talk to one another
   links:
     - redis
     - mongo

   # Pass environment variables to the flask container (this debug level lets you see more useful information)
   environment:
     FLASK_DEBUG: 1

   # Deploy with 3 replicas in the case of failure of one of the containers (only in Docker Swarm)
   deploy:
     mode: replicated
     replicas: 3

 # Define the redis Docker container
 redis:

   # use the redis:alpine image: https://hub.docker.com/_/redis/
   image: redis:alpine
   restart: always
   deploy:
     mode: replicated
     replicas: 3

 # Define the redis NGINX forward proxy container


 # Define the mongo database
 mongo:
    image: mongo
    restart: always
    environment:
      MONGO_INITDB_ROOT_USERNAME: root
      MONGO_INITDB_ROOT_PASSWORD: root

 mongo-express:
    image: mongo-express
    restart: always
    ports:
      - 8081:8081
    environment:
      ME_CONFIG_MONGODB_ADMINUSERNAME: root
      ME_CONFIG_MONGODB_ADMINPASSWORD: root

   # Expose port 5432 to other Docker containers
    expose:
      - "8081"

Serving Flask app "mongo" (lazy loading)
 Environment: docker
 Debug mode: off
 Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)