docker-compose.yml

version: '2.1'
services:
    postgres:
        image: postgres:9.6
        environment:
            - POSTGRES_USER=airflow
            - POSTGRES_PASSWORD=airflow
            - POSTGRES_DB=airflow
        volumes:
            - metadata-db:/var/lib/postgresql/data

    pgadmin:
        image: dpage/pgadmin4:latest
        environment:
            - PGADMIN_DEFAULT_EMAIL=${PGADMIN_EMAIL:-aluxh24@yahoo.com}
            - PGADMIN_DEFAULT_PASSWORD=${PGADMIN_PASSWORD:-qwerty123}
        depends_on:
            - postgres
            - pg-data
        ports:
            - "80:80"
        volumes:
            - ./pgadmin:/var/lib/pgadmin

    pg-data:
        image: postgres
        environment:
            - POSTGRES_USER=postgres
            - POSTGRES_PASSWORD=docker
        ports:
            - "5439:5432"
        volumes:
            # link to the alpine volume
            - carparksg:/var/lib/postgresql/data
            # link to the data folder for COPY 
            - ./data:/home/data

    jupyter:
        image: jupyter/scipy-notebook
        environment:
            - NB_UID=${NB_UID:-1000}
            - JUPYTER_TOKEN=${JUPYTER_TOKEN:-udacity}
            - JUPYTER_ENABLE_LAB=yes
        user: root
        volumes:
            - ./notebooks:/home/jovyan/work
            - ./data:/home/jovyan/work/data
        ports:
            - "8888:8888"
            - "4040:4040"

    webserver:
        image: puckel/docker-airflow:1.10.3
        restart: always
        depends_on:
            - postgres
            - pg-data
        environment:
            - LOAD_EX=n
            - EXECUTOR=Local
        volumes:
            - ./:/usr/local/airflow/dags
            - ./requirements.txt:/requirements.txt
            - ./logs:/usr/local/airflow/logs
            - ./plugins:/usr/local/airflow/plugins
        ports:
            - "8080:8080"
        links:
            - "pg-data:database"
        command: webserver
        healthcheck:
            test: ["CMD-SHELL", "[ -f /usr/local/airflow/airflow-webserver.pid ]"]
            interval: 30s
            timeout: 30s
            retries: 3

volumes:
    # Create a volume for the postgres-data (persistent database)
    # docker create -v /var/lib/postgresql/data --name postgres-data alpine
    # docker create -v /var/lib/postgresql/data --name metadata-db alpine
    metadata-db:
        external: true
    carparksg:
        external: true