docker-compose.yml

# central file in a docker compose pipeline
# defines the containers of the pipeline and some environment variables configuration info

version: '3' # 

services: # 

# 1st container
  tweet_collector: #
    container_name: tweet_collector
    build: tweet_collector/ # 
    volumes: # 
    - ./tweet_collector/:/app
    depends_on: # 
    - mongodb
    environment:
    - TWT_API_KEY=${TWT_API_KEY}
    - TWT_API_SECRET=${TWT_API_SECRET}
    - TWT_ACCESS_TOKEN=${TWT_ACCESS_TOKEN}
    - TWT_ACCESS_TOKEN_SECRET=${TWT_ACCESS_TOKEN_SECRET}

# 2nd container
  mongodb: #
    container_name: mongodb
    image: mongo # 
    ports: # 
    - 27017:27017 # 

# 3rd container
  etl_job:
    container_name: etl_job
    build: etl_job/
    volumes: # 
    - ./etl_job/:/app
    depends_on:
    - mongodb
    - postgresdb

# 4th container
  postgresdb:
    container_name: postgresdb
    image: postgres
    ports:
    - "5555:5432"
    environment:
    - POSTGRES_USER=postgres
    - POSTGRES_PASSWORD=postgres
    - POSTGRES_DB=twitter_stream

# 5th container
  slack_bot:
    container_name: slack_bot
    build: slackbot/
    volumes:
    - ./slackbot/:/app
    depends_on:
    - postgresdb
    environment:
    - WEBHOOK_URL=${WEBHOOK_URL}


# psql -U postgres -h 0.0.0.0 -p 5555 twitter_stream