使用 Docker 部署 RabbitMQ 集群

🏷 基础环境

虚拟机：node1 / node2 / node3
集群：docker swarm，node1 为 manager 节点，node2 / node3 为 worker 节点

集群搭建可参考：Docker Swarm 入门：单机创建 Swarm 集群

🏷 集群部署方式一（ rabbitmqctl )

参考资料： Clustering Transcript with rabbitmqctl

1、创建 rabbitmq 持久化存储路径

# 【所有节点】
mkdir -p ~/rabbitmq/data

2、在 node1 上新建部署文件 ~/rabbitmq/stack.yml

version: '3.7'
services:
  rabbit1:
    image: rabbitmq:3
    networks:
      - rabbit_network
    volumes:
      - ~/rabbitmq/data:/var/lib/rabbitmq
    environment:
      - RABBITMQ_ERLANG_COOKIE=anoyi_cluster_cookie
      - RABBITMQ_DEFAULT_USER=anoyi
      - RABBITMQ_DEFAULT_PASS=Passw0rd
    hostname: rabbit1
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.hostname==node1
  rabbit2:
    image: rabbitmq:3
    networks:
      - rabbit_network
    volumes:
      - ~/rabbitmq/data:/var/lib/rabbitmq
    environment:
      - RABBITMQ_ERLANG_COOKIE=anoyi_cluster_cookie
      - RABBITMQ_DEFAULT_USER=anoyi
      - RABBITMQ_DEFAULT_PASS=Passw0rd
    hostname: rabbit2
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.hostname==node2
  rabbit3:
    image: rabbitmq:3
    networks:
      - rabbit_network
    volumes:
      - ~/rabbitmq/data:/var/lib/rabbitmq
    environment:
      - RABBITMQ_ERLANG_COOKIE=anoyi_cluster_cookie
      - RABBITMQ_DEFAULT_USER=anoyi
      - RABBITMQ_DEFAULT_PASS=Passw0rd
    hostname: rabbit3
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.hostname==node3

networks:
  rabbit_network:
    driver: overlay
    attachable: true

3、启动 rabbitmq 服务

# 【node1】部署 stack
docker stack deploy -c ~/rabbitmq/stack.yml rabbitmq

# 【node1】查看服务状态
docker service ls

直到出现如下列表：

ID                  NAME                MODE                REPLICAS            IMAGE               PORTS
j72ifjskqug5        rabbitmq_rabbit1    replicated          1/1                 rabbitmq:3
ihs9ec74mtng        rabbitmq_rabbit2    replicated          1/1                 rabbitmq:3
sb996gg4jtl2        rabbitmq_rabbit3    replicated          1/1                 rabbitmq:3

4、构建 rabbitmq 集群

将 rabbit@rabbit2 和 rabbit@rabbit3 加入集群：

#【node2】rabbit@rabbit2 加入集群
docker exec -it $(docker ps | grep "rabbit" | awk '{ print $1 }')  rabbitmqctl stop_app

docker exec -it $(docker ps | grep "rabbit" | awk '{ print $1 }')  rabbitmqctl reset

docker exec -it $(docker ps | grep "rabbit" | awk '{ print $1 }')  rabbitmqctl join_cluster rabbit@rabbit1

docker exec -it $(docker ps | grep "rabbit" | awk '{ print $1 }')  rabbitmqctl start_app


#【node3】rabbit@rabbit3 加入集群
docker exec -it $(docker ps | grep "rabbit" | awk '{ print $1 }')  rabbitmqctl stop_app

docker exec -it $(docker ps | grep "rabbit" | awk '{ print $1 }')  rabbitmqctl reset

docker exec -it $(docker ps | grep "rabbit" | awk '{ print $1 }')  rabbitmqctl join_cluster rabbit@rabbit1

docker exec -it $(docker ps | grep "rabbit" | awk '{ print $1 }')  rabbitmqctl start_app

5、查看集群状态

# 【任意节点】
docker exec -it $(docker ps | grep "rabbit" | awk '{ print $1 }')  rabbitmqctl cluster_status

---

🏷 集群部署方式二（ Config File Peer Discovery Backend )

参考资料： How to Configure Peer Discovery

1、创建 rabbitmq 持久化存储路径

# 【所有节点】
mkdir -p ~/rabbitmq/data

2、在 node1 上创建 rabbitmq 配置文件 ~/rabbitmq/rabbitmq.conf

loopback_users.guest = false
listeners.tcp.default = 5672
hipe_compile = false
default_user = anoyi
default_pass = Passw0rd
cluster_formation.peer_discovery_backend = rabbit_peer_discovery_classic_config
cluster_formation.classic_config.nodes.1 = rabbit@rabbit1
cluster_formation.classic_config.nodes.2 = rabbit@rabbit2
cluster_formation.classic_config.nodes.3 = rabbit@rabbit3

3、在 node1 上创建 docker config

docker config create rabbitmq-config ~/rabbitmq/rabbitmq.conf

4、在 node1 上新建部署文件 ~/rabbitmq/stack.yml

version: '3.7'
services:
  rabbit1:
    image: rabbitmq:3
    networks:
      - rabbit_network
    volumes:
      - ~/rabbitmq/data:/var/lib/rabbitmq
    configs:
      - source: rabbitmq-config
        target: /etc/rabbitmq/rabbitmq.conf
    environment:
      - RABBITMQ_ERLANG_COOKIE=anoyi_cluster_cookie
    hostname: rabbit1
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.hostname==node1
  rabbit2:
    image: rabbitmq:3
    networks:
      - rabbit_network
    volumes:
      - ~/rabbitmq/data:/var/lib/rabbitmq
    configs:
      - source: rabbitmq-config
        target: /etc/rabbitmq/rabbitmq.conf
    environment:
      - RABBITMQ_ERLANG_COOKIE=anoyi_cluster_cookie
    hostname: rabbit2
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.hostname==node2
  rabbit3:
    image: rabbitmq:3
    networks:
      - rabbit_network
    volumes:
      - ~/rabbitmq/data:/var/lib/rabbitmq
    configs:
      - source: rabbitmq-config
        target: /etc/rabbitmq/rabbitmq.conf
    environment:
      - RABBITMQ_ERLANG_COOKIE=anoyi_cluster_cookie
    hostname: rabbit3
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.hostname==node3

networks:
  rabbit_network:
    driver: overlay
    attachable: true

configs:
  rabbitmq-config:
    external: true

5、启动 rabbitmq 集群

# 【node1】部署集群
docker stack deploy -c ~/rabbitmq/stack.yml rabbitmq

---

🏷 番外补充

1、Spring Boot 应用连接 RabbitMQ 集群配置

spring.rabbitmq.addresses=node1:5672,node2:5672,node3:5672
spring.rabbitmq.username=anoyi
spring.rabbitmq.password=Passw0rd

注意，容器需要暴露端口 5672 供外部访问