docker-compose.yml

version: "3.8"


services:
    rabbitmq:
        image: rabbitmq:3.11-management-alpine  # management has browser explorer
        restart: always
        hostname: rabbitmq  # after recreating the container, docker will get a different name and forget the old data
        ports:
            - "15672:15672"  # HTTP API clients, management UI and rabbitmqadmin
            - "5672:5672"  # AMQP port
        environment:
            - RABBITMQ_DEFAULT_USER  # from .env
            - RABBITMQ_DEFAULT_PASS  # from .env
            - RABBITMQ_SERVER_ADDITIONAL_ERL_ARGS=-rabbit disk_free_limit 2147483648  # low watermark
        volumes:
            - rabbitmq_volume:/var/lib/rabbitmq
    
    postgres:
        image: postgres:15.1-alpine
        restart: always
        command: [ "postgres", "-c", "log_statement=all" ]
        ports:
            - "${OUT_POSTGRES_PORT}:5432"
        environment:
            - POSTGRES_DB  # from .env
            - POSTGRES_USER  # from .env
            - POSTGRES_PASSWORD  # from .env
        volumes:
            - postgres_volume:/var/lib/postgresql/data
    
    celery_worker:
        build:
            context: ./docker
            args:
                - BUILD_COMPONENT_NAME=celery_worker  # for image
                - DEFAULT_USER  # from .env and set default user in container
                - DEFAULT_USER_GROUP  # from .env and set default group in container
        user: ${DEFAULT_USER}:${DEFAULT_USER_GROUP}
        restart: always
        hostname: celery_worker
        command: sh -c "./start.sh"
        environment:
            - DB_HOST=${WEB_DB_HOST}  # from .env and set in django settings
            - DB_PORT=${WEB_DB_PORT}  # from .env and set in django settings
            - DB_NAME=${WEB_DB_NAME}  # from .env and set in django settings
            - DB_USER=${WEB_DB_USER}  # from .env and set in django settings
            - DB_PASSWORD=${WEB_DB_PASSWORD}  # from .env and set in django settings
            - CELERY_BROKER_URL  # from .env
            - CELERY_RESULT_BACKEND_URL  # from .env
        volumes:
            - ./src:/app/src  # all project, because autodiscover search in all INSTALLED APPS
        depends_on:
            - rabbitmq
            - postgres
    
    web_server:
        build:
            context: ./docker
            args:
                - BUILD_COMPONENT_NAME=web  # for image
                - DEFAULT_USER  # from .env and set default user in container
                - DEFAULT_USER_GROUP  # from .env and set default group in container
        user: ${DEFAULT_USER}:${DEFAULT_USER_GROUP}
        restart: always
        hostname: web_server
        command: sh -c "./start.sh"
        ports:
            - "${OUT_WEB_SERVER_PORT}:8000"
        environment:
            - DB_HOST=${WEB_DB_HOST}  # from .env and set in django settings
            - DB_PORT=${WEB_DB_PORT}  # from .env and set in django settings
            - DB_NAME=${WEB_DB_NAME}  # from .env and set in django settings
            - DB_USER=${WEB_DB_USER}  # from .env and set in django settings
            - DB_PASSWORD=${WEB_DB_PASSWORD}  # from .env and set in django settings
            - CELERY_BROKER_URL  # from .env and set in django settings
            - CELERY_RESULT_BACKEND_URL  # from .env and set in django settings
        volumes:
            - ./src:/app/src
        depends_on:
            - celery_worker
    
    flower:
        build:
            context: ./docker
            args:
                - BUILD_COMPONENT_NAME=flower  # for image
                - DEFAULT_USER  # from .env and set default user in container
                - DEFAULT_USER_GROUP  # from .env and set default group in container
        user: ${DEFAULT_USER}:${DEFAULT_USER_GROUP}
        restart: always
        hostname: flower
        command: sh -c "./start.sh"
        ports:
            - "${FLOWER_PORT}:${FLOWER_PORT}"
        environment:
            - FLOWER_PORT  # from .env
            - CELERY_BROKER_URL  # from .env
            - CELERY_RESULT_BACKEND_URL  # from .env
        volumes:
            - ./src:/app/src
        depends_on:
            - celery_worker

volumes:
    rabbitmq_volume:
        driver: local
    
    postgres_volume:
        driver: local