Docker Compose 多实例 Tomcat 部署示例

docker compose up -d --scale tomcat=3 192.168.0.105/mvc/index

#hello peter!

docker-compose.yaml

version: '3'
services:
  nginx:
    container_name: v-nginx
    image: nginx:1.9.7
    links:
      - tomcat:tom
    restart: always
    ports:
      - 80:80
    volumes:
      - /docker/nginx:/etc/nginx/conf.d
    depends_on:
      - tomcat
  mysql:
    container_name: v-mysql
    image: mysql:5.7
    environment:
      MYSQL_ROOT_PASSWORD: root
    ports:
      - "3306:3306"
    restart: always
  tomcat:
    image: dockermvc:peter
    restart: always
    depends_on:
      - mysql

/docker/nginx/default.conf

Docker Compose 会把 tom 处理为 upstream 多台 ip 的配置

server {
    listen       80;
    server_name  localhost;

    location /mvc {
        proxy_pass http://tom:8080;
    }
}