docker-stack.yml

version: "3"
services:

    redis:
        image: operation:82/redis:alpine
        ports:
            - "6379"
        networks:
            - frontend
        deploy:
            replicas: 2
            update_config:
                parallelism: 2
                delay: 10s
            restart_policy:
                condition: on-failure
    db:
        image: operation:82/postgres:9.4
        volumes:
            - db-data:/var/lib/postgresql/data
        networks:
            - backend
        deploy:
            placement:
                constraints: [node.role == manager]
    vote:
        image: operation:82/vote:latest
        ports:
            - 5000:80
        networks:
            - frontend
        depends_on:
            - redis
        deploy:
            replicas: 2
            update_config:
                parallelism: 2
            restart_policy:
                condition: on-failure
    result:
        image: operation:82/result:latest
        ports:
            - 5001:80
        networks:
            - backend
        depends_on:
            - db
        deploy:
            replicas: 1
            update_config:
                parallelism: 2
                delay: 10s
            restart_policy:
                condition: on-failure

    worker:
        image: operation:82/worker:latest
        networks:
            - frontend
            - backend
        deploy:
            mode: replicated
            replicas: 1
            labels: [APP=VOTING]
            restart_policy:
                condition: on-failure
                delay: 10s
                max_attempts: 3
                window: 120s
            placement:
                constraints: [node.role == manager]

    visualizer:
        image: harbor-bj.devopshub.cn/docker-training/visualizer:stable
        ports:
            - "8080:8080"
        stop_grace_period: 1m30s

        volumes:
            - "/var/run/docker.sock:/var/run/docker.sock"
        deploy:
            placement:
                constraints: [node.role == manager]

networks:
    frontend:
    backend:

volumes:
    db-data: