docker-compose.yml

version: '3'
services:
    postgres:
        container_name: postgres
        image: postgres:alpine
        environment:
            POSTGRES_DB: postgres
            POSTGRES_USER: postgres
            POSTGRES_PASSWORD: postgres
            PGDATA: /data/postgres
        volumes:
            - ./init.sql:/docker-entrypoint-initdb.d/init.sql
            - postgres:/data/postgres
        expose:
            - 5432
        restart: unless-stopped # Change for 'always' in production environment

    # Use this ONLY in staging environment
    pgadmin:
        container_name: pgadmin
        image: dpage/pgadmin4
        environment:
            PGADMIN_DEFAULT_EMAIL: admin@admin.com
            PGADMIN_DEFAULT_PASSWORD: admin
        volumes:
            - ./servers.json:/pgadmin4/servers.json
            - pgadmin:/root/.pgadmin
        depends_on:
            - postgres
        links:
            - postgres:postgres
        ports:
            - "5433:80"
        restart: unless-stopped # Change for 'always' in production environment

    nginx-proxy:
        container_name: nginx-proxy
        image: jwilder/nginx-proxy
        environment:
            DEFAULT_HOST: localhost
        volumes:
            - /var/run/docker.sock:/tmp/docker.sock:ro
            - certs:/etc/nginx/certs:ro
            - vhostd:/etc/nginx/vhost.d
            - html:/usr/share/nginx/html
        ports:
            - "80:80"
            # - "443:443" # Enable in production environment
        labels:
            - com.github.jrcs.letsencrypt_nginx_proxy_companion.nginx_proxy

    # Enable in production environment
    # letsencrypt:
    #     container_name: letsencrypt
    #     image: jrcs/letsencrypt-nginx-proxy-companion
    #     environment:
    #         NGINX_PROXY_CONTAINER: nginx-proxy
    #     volumes:
    #         - /var/run/docker.sock:/var/run/docker.sock:ro
    #         - certs:/etc/nginx/certs:rw
    #         - vhostd:/etc/nginx/vhost.d
    #         - html:/usr/share/nginx/html
    #     depends_on:
    #         - nginx-proxy
    #     restart: always

    locust-master:
        container_name: locust-master
        image: locustio/locust
        ports:
        - "8089:8089"
        volumes:
        - ./locustfile.py:/mnt/locust/locustfile.py
        command: -f /mnt/locust/locustfile.py --master --host http://nginx-proxy --users 2500 --spawn-rate 25
  
    locust-worker:
        # container_name: locust-worker # Scalable containers cannot have custom names
        image: locustio/locust
        volumes:
        - ./locustfile.py:/mnt/locust/locustfile.py
        command: -f /mnt/locust/locustfile.py --worker --master-host locust-master
        deploy:
          replicas: 4

    shortr_go-echo:
        build:
            context: ./
            dockerfile: ./go/echo/Dockerfile
        container_name: shortr_go-echo
        image: shortr_go-echo:latest
        environment:
            APP_PORT: 80
            APP_SSL_ENABLED: 'false' # Change to 'true' in production environment
            DATABASE_HOST: postgres
            DATABASE_PORT: 5432
            DATABASE_USER: postgres
            DATABASE_PASSWORD: postgres
            DATABASE_NAME: postgres
            DATABASE_SSLMODE: disable # Change to 'require' in production environment
            VIRTUAL_HOST: localhost
            LETSENCRYPT_HOST: localhost
            LETSENCRYPT_EMAIL: somebody@localhost.com
        depends_on:
            - postgres
        links:
            - postgres:postgres
        expose:
            - 80
        restart: unless-stopped # Change for 'always' in production environment

volumes:
    postgres:
    pgadmin:
    certs:
    vhostd:
    html: