这个docker-compose.yml文件，整合了java应用，java应用连接docker中的mysql，nginx反向代理docker中的java后端，即一切都在docker中，然后它们互相关联

version: '3.7'
services:

  assembly-go:
    image: 192.168.8.1:5000/assembly-go:v2
    container_name: assembly-go
    networks: 
      - web_net
    restart: always
    tty: true
    volumes:
      - /data/project/assembly-go/config.yml:/app/conf/config.yml
    #ports:
      #- "9090:8080"
    environment: 
      - hostname:assembly-java.xxxx.com
    extra_hosts: 
      - assembly-java.xxxx.com:172.50.0.30

  assembly-java:
    image: 192.168.8.1:5000/assembly-java
    container_name: assembly-java
    restart: always
    tty: true
    volumes:
      - /data/project/assembly-java/config:/config
      - /data/logs/:/logs/
    working_dir: /opt/server
    #ports:
      #- 8080:8080
    networks: 
      - web_net
    depends_on: 
      - db_mysql
    environment: 
      - hostname:assembly-go.xxxx.com
    extra_hosts: 
      - assembly-go.xxxx.com:172.50.0.30

  db_mysql:
    image: mysql:5.7.25
    container_name: mysql
    networks: 
      - web_net 
    restart: always
    tty: true
    ports:
      - 3306:3306
    environment:
      - TZ=Asia/Shanghai
      - MYSQL_ROOT_PASSWORD=root
    volumes:
      - /data/conf/mysql/my.cnf:/etc/mysql/my.cnf
      - /data/mysql/data:/var/lib/mysql 

  openresty:
    image: openresty/openresty
    container_name: openresty
    networks: 
      web_net: 
        ipv4_address: "172.50.0.30" # openresty指定ip,是为了assembly-go.xxxx.com与assembly-java.xxxx.com互相http请求
    restart: always
    tty: true
    ports:
      - 80:80
    ulimits:
      nofile:
        soft: 2048
        hard: 2048
    environment:
      - TZ=Asia/Shanghai
    links: 
      - assembly-go:ass-go          #ass-go是容器assembly-go的别名,在openresty的upstream中会用到
      - assembly-java:ass-java
    volumes:
      - /data/openresty/conf:/usr/local/openresty/nginx/conf
      - /data/openresty/logs:/usr/local/openresty/nginx/logs
      - /data/openresty/html:/usr/local/openresty/nginx/html
      - /data/wwwroot/assembly-fed/:/data/wwwroot/assembly-fed/



networks: 
  web_net:
    ipam:
      config:
      - subnet: 172.50.0.0/24   #子网

openresty的upstream部分

#assembly-go
upstream assembly-go {
    server ass-go:8080  weight=5 max_fails=3 fail_timeout=30s;

    #check interval=10000 rise=1 fall=1 timeout=1000 type=http;
    #check_keepalive_requests 1;
    #check_http_send "HEAD / HTTP/1.0\r\n\r\n";
    #check_http_expect_alive http_2xx;
}
#assembly-java
upstream assembly-java {
    server ass-java:8080  weight=5 max_fails=3 fail_timeout=30s;

    #check interval=10000 rise=1 fall=1 timeout=1000 type=http;
    #check_keepalive_requests 100;
    #check_http_send "HEAD /static/check.html HTTP/1.0\r\n\r\n";
    #check_http_expect_alive http_2xx;
}