基于 Docker 搭建 RabbitMQ 集群

1. 创建 network

   docker network create --driver bridge --subnet 172.22.0.0/16 --gateway 172.22.0.1  op_net

2. 创建 rabbitmq.yml

   version: '3.6'
   
   services:
     rabbitmq-1:
       image: rabbitmq:3-management
       restart: always
       hostname: rabbitmq-1
       container_name: rabbitmq-1
       ports:
         - 5672:5672
         - 15672:15672
       environment:
         RABBITMQ_NODENAME: rabbitmq-1
         RABBITMQ_ERLANG_COOKIE: secret-cookie
       networks:
         default:
           ipv4_address: 172.22.0.17
     rabbitmq-2:
       image: rabbitmq:3-management
       restart: always
       hostname: rabbitmq-2
       container_name: rabbitmq-2
       ports:
         - 5673:5672
         - 15673:15672
       environment:
         RABBITMQ_NODENAME: rabbitmq-2
         RABBITMQ_ERLANG_COOKIE: secret-cookie
       networks:
         default:
           ipv4_address: 172.22.0.18
     rabbitmq-3:
       image: rabbitmq:3-management
       restart: always
       hostname: rabbitmq-3
       container_name: rabbitmq-3
       ports:
         - 5674:5672
         - 15674:15672
       environment:
         RABBITMQ_NODENAME: rabbitmq-3
         RABBITMQ_ERLANG_COOKIE: secret-cookie
       networks:
         default:
           ipv4_address: 172.22.0.19
         
   networks:
     default:
       external:
         name: op_net

3. 启动 RabbitMQ 集群

   docker-compose -f rabbitmq.yml up -d

4. 将 rabbitmq-2 添加到集群（RAM 类型）

   rabbitmqctl stop_app
   rabbitmqctl reset
   rabbitmqctl join_cluster --ram rabbitmq-1@rabbitmq-1
   rabbitmqctl start_app

5. 将 rabbitmq-3 添加到集群

   rabbitmqctl stop_app
   rabbitmqctl reset
   rabbitmqctl join_cluster --ram rabbitmq-3@rabbitmq-3
   rabbitmqctl start_app

参考资料：

1. docker-compose配置rabbitmq集群服务器
2. 使用 docker-compose 安装搭建 RabbitMQ 集群