Docker下RabbitMQ四部曲之一:极速体验(单机和集群)

2022-05-09 09:15:21 浏览数 (1)

从本章开始,我们一起在Docker环境实战RabbitMQ环境部署和对应的Java开发,当前是《Docker下RabbitMQ四部曲》系列的第一篇,整个系列由以下四篇文章组成:

  1. 第一篇,即本章,我们用最快的方式体验RabbitMQ单机环境下生产和消费消息,然后再体验RabbitMQ集群环境下生产和消费消息;
  2. 第二篇,详细说明如何制作RabbitMQ的docker镜像文件,这个镜像支持集群,也能通过参数来配置内存节点、高可用等特性;
  3. 第三篇,开发基于SpringBoot的web应用,实现生产和消息RabbitMQ消息的功能;
  4. 第四篇,实战高可用,集群环境中有RabbitMQ宕机,验证此时消息的生产和消费是否正常;

原文地址:https://blog.csdn.net/boling_cavalry/article/details/80212878

环境信息

本次实战的环境信息如下:

  1. 操作系统:Ubuntu 16.04.3 LTS
  2. docker版本:17.03.2-ce, build f5ec1e2
  3. docker-compose版本:1.18.0, build 8dd22a9
  4. RabbitMQ版本:3.7.5-rc.1
  5. RabbitMQ环境的Erlang版本:19.3.6.5

本章概要

本章的实战步骤简述如下:

  1. 部署单机版RabbitMQ、生产消息的web应用、消费消息的web应用;
  2. 检查RabbitMQ的基本情况、生产和消费消息;
  3. 部署集群版RabbitMQ、生产消息的web应用、消费消息的web应用;
  4. 检查RabbitMQ的基本情况、生产和消费消息;

部署单机版RabbitMQ

  1. 创建docker-compose.yml文件,内容如下:
代码语言:javascript复制
rabbitmq:
  image: bolingcavalry/rabbitmq-server:0.0.3
  hostname: rabbitmq
  ports:
    - "15672:15672"
  environment:
    - RABBITMQ_DEFAULT_USER=admin
    - RABBITMQ_DEFAULT_PASS=888888
producer:
  image: bolingcavalry/rabbitmqproducer:0.0.2-SNAPSHOT
  hostname: producer
  links:
    - rabbitmq:rabbitmqhost
  ports:
      - "18080:8080"
  environment:
   - mq.rabbit.address=rabbitmqhost:5672
   - mq.rabbit.username=admin
   - mq.rabbit.password=888888
consumer:
  image: bolingcavalry/rabbitmqconsumer:0.0.5-SNAPSHOT
  hostname: consumer
  links:
    - rabbitmq:rabbitmqhost
  environment:
   - mq.rabbit.address=rabbitmqhost:5672
   - mq.rabbit.username=admin
   - mq.rabbit.password=888888
   - mq.rabbit.queue.name=consumer.queue
  1. 在docker-compose.yml文件所在目录执行命令docker-compose up -d,即可下载镜像并创建容器,下载过程比较耗时请耐心等待,容器一共三个:RabbitMQ、消息生产者、消息消费者;
  2. 容器创建成功后,网络架构如下图所示:
  1. 为了方便后续体验,将三个容器信息列表如下:

名称

作用

IP地址

single_rabbitmq_1

RabbitMQ服务器

172.17.0.2

single_producer_1

生产消息的web应用

172.17.0.4

single_consumer_1

消费消息的web应用

172.17.0.3

体验单机版RabbitMQ

单机版的RabbitMQ环境已经部署完毕,接下来我们来体验一番:

  1. 假设运行docker的电脑IP地址为192.168.119.155;
  2. 在浏览器输入http://192.168.119.155:18080/send/aaa/bbb,这个请求会使single_producer_1容器向RabbitMQ发送消息,如下图:
  1. 在docker机器上输入命令docker logs -f single_consumer_1,可以看到容器的日志,如下所示,receive message : hello, aaa, bbb就是容器从RabbitMQ收到的消息:
代码语言:javascript复制
2018-05-12 10:40:23.851  INFO 1 --- [cTaskExecutor-2] o.s.a.r.c.CachingConnectionFactory       : Attempting to connect to: [rabbitmqhost:5672]
2018-05-12 10:40:23.878  WARN 1 --- [172.17.0.2:5672] c.r.c.impl.ForgivingExceptionHandler     : An unexpected connection driver error occured (Exception message: Socket closed)
2018-05-12 10:40:28.890  INFO 1 --- [cTaskExecutor-2] o.s.a.r.l.SimpleMessageListenerContainer : Restarting Consumer@25023b5b: tags=[{}], channel=null, acknowledgeMode=AUTO local queue size=0
2018-05-12 10:40:28.892  INFO 1 --- [cTaskExecutor-3] o.s.a.r.c.CachingConnectionFactory       : Attempting to connect to: [rabbitmqhost:5672]
2018-05-12 10:40:28.900  INFO 1 --- [cTaskExecutor-3] o.s.a.r.c.CachingConnectionFactory       : Created new connection: connectionFactory#29f69090:4/SimpleConnection@1fff76dd [delegate=amqp://admin@172.17.0.2:5672/, localPort= 36948]
2018-05-12 11:40:57.048  INFO 1 --- [cTaskExecutor-3] c.b.r.receiver.FanoutReceiver            : receive message : hello, aaa, bbb, 2018-05-12 11:40:56
  1. 在浏览器访问http://192.168.119.155:15672,会打开RabbitMQ的管理页面,需要登录,如下图,输入用户名admin,密码888888:
  1. 登录成功后,点击“Connections”的Tab页,如下图,目前single_producer_1和single_consumer_1容器都连接到了RabbitMQ:
  1. 如下图红框所示,在“Exchanges”的Tab页,可以看到一个fanout型的交换机,名为bolingcavalryFanoutExchange:
  1. 如下图红框所示,在“Queues”的Tab页,可以看到一个队列,名为consumer.queue:

至此,单机版的RabbitMQ我们就体验完毕了,接下来开始体验集群版的RabbitMQ;

清空单机版RabbitMQ的所有容器

在刚才创建的docker-compose.yml文件所在目录下执行命令docker-compose down,即可将刚才创建的三个容器彻底清除,如下所示:

代码语言:javascript复制
root@maven:/usr/local/work/github/blog_demos/rabbitmq_docker_files/single# docker-compose down
Stopping single_producer_1 ... done
Stopping single_consumer_1 ... done
Stopping single_rabbitmq_1 ... done
Removing single_producer_1 ... done
Removing single_consumer_1 ... done
Removing single_rabbitmq_1 ... done

部署集群版RabbitMQ

  1. 创建集群版对应的docker-compose.yml文件,内容如下:
代码语言:javascript复制
version: '2'
services:
  rabbit1:
    image: bolingcavalry/rabbitmq-server:0.0.3
    hostname: rabbit1
    ports:
      - "15672:15672"
    environment:
      - RABBITMQ_DEFAULT_USER=admin
      - RABBITMQ_DEFAULT_PASS=888888
  rabbit2:
    image: bolingcavalry/rabbitmq-server:0.0.3
    hostname: rabbit2
    depends_on:
      - rabbit1
    links:
      - rabbit1
    environment:
     - CLUSTERED=true
     - CLUSTER_WITH=rabbit1
     - RAM_NODE=true
    ports:
      - "15673:15672"
  rabbit3:
    image: bolingcavalry/rabbitmq-server:0.0.3
    hostname: rabbit3
    depends_on:
      - rabbit2
    links:
      - rabbit1
      - rabbit2
    environment:
      - CLUSTERED=true
      - CLUSTER_WITH=rabbit1
    ports:
      - "15675:15672"
  producer:
    image: bolingcavalry/rabbitmqproducer:0.0.2-SNAPSHOT
    hostname: producer
    depends_on:
      - rabbit3
    links:
      - rabbit1:rabbitmqhost
    ports:
      - "18080:8080"
    environment:
      - mq.rabbit.address=rabbitmqhost:5672
      - mq.rabbit.username=admin
      - mq.rabbit.password=888888
  consumer1:
    image: bolingcavalry/rabbitmqconsumer:0.0.5-SNAPSHOT
    hostname: consumer1
    depends_on:
      - producer
    links:
      - rabbit2:rabbitmqhost
    environment:
     - mq.rabbit.address=rabbitmqhost:5672
     - mq.rabbit.username=admin
     - mq.rabbit.password=888888
     - mq.rabbit.queue.name=consumer1.queue
  consumer2:
    image: bolingcavalry/rabbitmqconsumer:0.0.5-SNAPSHOT
    hostname: consumer2
    depends_on:
      - consumer1
    links:
      - rabbit3:rabbitmqhost
    environment:
      - mq.rabbit.address=rabbitmqhost:5672
      - mq.rabbit.username=admin
      - mq.rabbit.password=888888
      - mq.rabbit.queue.name=consumer2.queue
  1. 在docker-compose.yml文件所在目录执行命令docker-compose up -d,即可创建容器,容器一共六个:三个RabbitMQ、一个消息生产者、两个消息消费者;
  2. 容器创建成功后,网络架构如下图所示:
  1. 为了方便后续体验,将三个容器信息列表如下:

名称

作用

IP地址

cluster_rabbit1_1

一号RabbitMQ服务器

172.17.0.2

cluster_rabbit2_1

二号RabbitMQ服务器

172.17.0.3

cluster_rabbit3_1

三号RabbitMQ服务器

172.17.0.6

cluster_producer_1

生产消息的web应用

172.17.0.4

cluster_consumer1_1

一号消费消息的web应用

172.17.0.5

cluster_consumer2_1

二号消费消息的web应用

172.17.0.7

体验集群版RabbitMQ

集群版的RabbitMQ环境已经部署完毕,我们来体验一番:

  1. 假设运行docker的电脑IP地址为192.168.119.155;
  2. 在浏览器输入http://192.168.119.155:18080/send/aaa/bbb,这个请求会使single_producer_1容器向RabbitMQ发送消息,如下图:
  1. 在docker机器上输入命令docker logs -f cluster_consumer1_1,可以看到容器cluster_consumer1_1的日志,如下所示,receive message : hello, aaa, bbb就是容器从RabbitMQ收到的消息:
代码语言:javascript复制
2018-05-12 11:59:17.112  INFO 1 --- [cTaskExecutor-4] o.s.a.r.c.CachingConnectionFactory       : Attempting to connect to: [rabbitmqhost:5672]
2018-05-12 11:59:17.172  INFO 1 --- [cTaskExecutor-4] o.s.a.r.c.CachingConnectionFactory       : Created new connection: connectionFactory#55040f2f:6/SimpleConnection@723a07 [delegate=amqp://admin@172.17.0.3:5672/, localPort= 48294]
2018-05-12 12:11:12.187  INFO 1 --- [cTaskExecutor-4] c.b.r.receiver.FanoutReceiver            : receive message : hello, aaa, bbb, 2018-05-12 12:11:12
  1. 接下来看另一个消费消息的容器,在docker机器上输入命令docker logs -f cluster_consumer2_1,可以看到容器cluster_consumer2_1的日志,如下所示,也受到一条消息,这证明fanout模式的交换机中的消息已成功被两个消费者消费:
代码语言:javascript复制
2018-05-12 11:59:12.199  INFO 1 --- [cTaskExecutor-3] o.s.a.r.c.CachingConnectionFactory       : Attempting to connect to: [rabbitmqhost:5672]
2018-05-12 11:59:12.263  INFO 1 --- [cTaskExecutor-3] o.s.a.r.c.CachingConnectionFactory       : Created new connection: connectionFactory#568bf312:4/SimpleConnection@11a59930 [delegate=amqp://admin@172.17.0.6:5672/, localPort= 55972]
2018-05-12 12:11:12.187  INFO 1 --- [cTaskExecutor-3] c.b.r.receiver.FanoutReceiver            : receive message : hello, aaa, bbb, 2018-05-12 12:11:12
  1. 在浏览器访问http://192.168.119.155:15672,会打开RabbitMQ的管理页面,需要登录,如下图,输入用户名admin,密码888888:
  1. 登录成功后,在“Overview”的Tab页,如下图红框所示,可见有三个RabbitMQ server,注意绿框中的信息,一号和三号RabbitMQ都是磁盘型,二号RabbitMQ是内存型的:
  1. 点击“Connections”的Tab页,如下图,所有生产者和消费者容器都连接到了RabbitMQ:

上图中表格表明了以下连接关系: 生产者连接一号RabbitMQ、一号消费者连接二号RabbitMQ、二号消费者连接三号RabbitMQ;

  1. 如下图红框所示,在“Exchanges”的Tab页,可以看到一个fanout型的交换机,名为bolingcavalryFanoutExchange:
  1. 如下图红框所示,在“Queues”的Tab页,可以看到两个队列,分别存在于二号RabbitMQ和三号RabbitMQ:

至此,集群版的RabbitMQ我们就体验完毕了,本章旨在让读者您用最少的操作来完成整个体验过程,接下来的文章中,我们会一起实战这些简单操作背后的技术细节;

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