docker-compose.yml

version: '3'
volumes:
    object-vol: # Volume to host s3 service data locally.
        driver: 'local'
    data-vol: # Volume to host db service data locally.
        driver: 'local'
services: 
    s3:
        image: minio/minio
        ports:
        - "9000:9000"
        volumes:
        - object-vol:/export
        environment:
        - "MINIO_ACCESS_KEY=AKIAIOSFODNN7EXAMPLE"
        - "MINIO_SECRET_KEY=wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY"
        command: server /export
        container_name: storage-cont
    db:
        image: postgres:latest
        ports:
            - "5432:5432" # host:container
        volumes:
        - data-vol:/var/lib/postgresql/data
        environment:
            - POSTGRES_USER=postgres
            - POSTGRES_DBNAME=sample    
            - POSTGRES_PASSWORD=mypass
            - POSTGRES_PORT=5432
        container_name: db-cont

    redis:
        image: redis:alpine
        ports: 
            - "6379"
        container_name: kvs-cont

    proxy:
        image: nginx:latest
        ports:
            - "80:80" # host:container
            - "443:443"
        volumes:
            - ./nginx.conf:/etc/nginx/nginx.conf:ro
            # connect host's ./nginx.conf with container's nginx.conf
            # :ro == read only perms in container
        links:
            - go:app 
        depends_on:
            - go
        container_name: proxy-cont

    go:
        build: .
        links:
            - db:db 
            - s3:s3
            - redis:redis
            # [other container]:[alias in this container]
            # this will create environment variables in the go container
            # with ip and port info for the postgres container
            # also creates entries in /etc/hosts with ip info
        depends_on:
            - db
            - s3
            - redis
        ports:
            - "8080:8080" # host:container
        volumes:
            - .:/go/src/github.com/monstar-lab/fr-circle-api
        container_name: go-cont