docker-compose yaml sample for circleci building

docker-compose-yml-sample.yml

version: "3"

services:
    db:
        image: mysql:5.7
        restart: always
        container_name: db
        ports:
            - "3306:3306"
        environment:
            - MYSQL_DATABASE=test
            - MYSQL_ROOT_PASSWORD=xxxxx
            - MYSQL_PORT=3306
    redis:
        image: redis
        container_name: redis
        restart: always
        ports:
            - "6379:6379"
    celery:
        build: .
        image: celery
        command:
              celery -A api worker -l info
        container_name: celery
        links:
            - db
            - redis
        environment:
            - DATABASE_MASTER_URL=######Link to db##########
            - CELERY_REDIS_URL=redis://redis:6379
volumes:
    db_data: {}