docker_practice/swarm_mode/demo/docker-compose.yml

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version: "3"
services:
wordpress:
image: wordpress
ports:
- 80:80
networks:
- overlay
environment:
WORDPRESS_DB_HOST: db:3306
WORDPRESS_DB_USER: wordpress
WORDPRESS_DB_PASSWORD: wordpress
deploy:
mode: replicated
replicas: 3
db:
image: mysql
networks:
- overlay
volumes:
- db-data:/var/lib/mysql
environment:
MYSQL_ROOT_PASSWORD: somewordpress
MYSQL_DATABASE: wordpress
MYSQL_USER: wordpress
MYSQL_PASSWORD: wordpress
deploy:
placement:
constraints: [node.role == manager]
visualizer:
image: dockersamples/visualizer:stable
ports:
- "8080:8080"
stop_grace_period: 1m30s
volumes:
- "/var/run/docker.sock:/var/run/docker.sock"
deploy:
placement:
constraints: [node.role == manager]
volumes:
db-data:
networks:
overlay: