docker-compose.yml

version: '3'

volumes:
    payments_db_data:
    refunds_db_data:

networks:
    payments_network:
        driver: bridge
    refunds_network:
        driver: bridge
    switch_network:
        driver: bridge

services:
    payments_db:
        image: postgres:9.6
        environment:
            POSTGRES_DB: "payments"
            POSTGRES_PASSWORD: "${PAYMENTS_DB_PASS}"
        ports:
            - "${PAYMENTS_DB_PORT}:5432"
        volumes:
            # data volume
            - payments_db_data:/var/lib/postgresql/data
            # scripts
            - ./payments/db_scripts:/payments/db_scripts
        healthcheck:
            test: ["CMD-SHELL", "pg_isready -U postgres"]
            interval: 5s
            timeout: 5s
            retries: 5
        networks:
            - payments_network

    refunds_db:
        image: postgres:9.6
        environment:
            POSTGRES_DB: "refunds"
            POSTGRES_PASSWORD: "${REFUNDS_DB_PASS}"
        ports:
            - "${REFUNDS_DB_PORT}:5432"
        volumes:
            # data volume
            - refunds_db_data:/var/lib/postgresql/data
            # scripts
            - ./refunds/db_scripts:/refunds/db_scripts
        healthcheck:
            test: ["CMD-SHELL", "pg_isready -U postgres"]
            interval: 5s
            timeout: 5s
            retries: 5
        networks:
            - refunds_network

    payments:
        build: payments
        volumes:
            - ./payments:/payments
        working_dir: /payments
        ports:
            - "${PAYMENTS_PORT}:${PAYMENTS_PORT}"
        command: sh -c "source ./start.sh && python manage.py migrate && python manage.py runserver 0.0.0.0:${PAYMENTS_PORT}"
        environment:
            DB_HOST: "payments_db"
            DB_NAME: "payments"
            DB_USER: "postgres"
            DB_PASS: "${PAYMENTS_DB_PASS}"
        networks:
            - payments_network
            - switch_network
        depends_on:
            - payments_db

    refunds:
        build: refunds
        volumes:
            - ./refunds:/refunds
        working_dir: /refunds
        ports:
            - "${REFUNDS_PORT}:${REFUNDS_PORT}"
        command: sh -c "source ./start.sh && python manage.py migrate && python manage.py runserver 0.0.0.0:${REFUNDS_PORT}"
        environment:
            DB_HOST: "refunds_db"
            DB_NAME: "refunds"
            DB_USER: "postgres"
            DB_PASS: "${REFUNDS_DB_PASS}"
            PAYMENTS_PORT: "${PAYMENTS_PORT}"
        networks:
            - refunds_network
            - switch_network
        depends_on:
            - refunds_db