CentOS下RabbitMQ安装

一、准备环境

由于RabbitMQ是由Erlang语言编写的基于amqp协议的消息代理中间件，所以安装RabbitMQ之前需要先安装Erlang和socat环境。

• 安装socat

yum -y install socat

• 安装Erlang
  由于Erlang在默认的YUM存储库中不可用，所以这里是从GitHub上下载rpm安装文件进行安装，下载地址如下（此次环境下载22.1.6版本）：

https://github.com/rabbitmq/erlang-rpm/releases/tag/v22.1.6

下载完成后将安装包上传至centos系统

执行下面命令进行安装

rpm -ivh erlang-22.1.6-1.el7.x86_64.rpm

查看Erlang的版本

[root@localhost opt]# erl -version
Erlang (SMP,ASYNC_THREADS,HIPE) (BEAM) emulator version 10.5.4
[root@localhost opt]#

至此，Erlang环境安装完毕

二、安装RabbitMQ

1. 首先从RabbitMQ官网下载RabbitMQ安装包

2. 导入GPG密钥

[root@localhost opt]# rpm --import https://www.rabbitmq.com/rabbitmq-release-signing-key.asc
[root@localhost opt]# 

3. 将RabbitMQ安装包上传到centOS

执行下面命令开始安装RabbitMQ

[root@localhost opt]# rpm -ivh rabbitmq-server-3.8.1-1.el7.noarch.rpm 
准备中...                          ################################# [100%]
正在升级/安装...
   1:rabbitmq-server-3.8.1-1.el7      ################################# [100%]
[root@localhost opt]#

至此，RabbitMQ已经安装在CentOS上。

三、配置RabbitMQ

• 启动RabbitMQ

[root@localhost opt]# systemctl start rabbitmq-server
[root@localhost opt]#

• 将RabbitMQ设置成开机自启动

[root@localhost opt]# systemctl enable rabbitmq-server
Created symlink from /etc/systemd/system/multi-user.target.wants/rabbitmq-server.service to /usr/lib/systemd/system/rabbitmq-server.service.
[root@localhost opt]# 

• 查看RabbitMQ状态信息

[root@localhost opt]# systemctl status rabbitmq-server
● rabbitmq-server.service - RabbitMQ broker
   Loaded: loaded (/usr/lib/systemd/system/rabbitmq-server.service; enabled; vendor preset: disabled)
   Active: active (running) since 五 2019-11-22 09:44:35 CST; 1min 27s ago
 Main PID: 7775 (beam.smp)
   Status: "Initialized"
   CGroup: /system.slice/rabbitmq-server.service
           ├─7775 /usr/lib64/erlang/erts-10.5.4/bin/beam.smp -W w -A 64 -MBas ageffcbf -MHas ageffcbf -MBlmbcs 512 -MHlmbcs 512 -MMmcs 30 -P 1048576 -t 5000000 -stbt db -zdbbl 128000 -K true -- -root /us...
           ├─7952 /usr/lib64/erlang/erts-10.5.4/bin/epmd -daemon
           ├─8089 erl_child_setup 32768
           ├─8110 inet_gethost 4
           └─8111 inet_gethost 4

11月 22 09:44:35 localhost.localdomain rabbitmq-server[7775]: Doc guides: https://rabbitmq.com/documentation.html
11月 22 09:44:35 localhost.localdomain rabbitmq-server[7775]: Support:    https://rabbitmq.com/contact.html
11月 22 09:44:35 localhost.localdomain rabbitmq-server[7775]: Tutorials:  https://rabbitmq.com/getstarted.html
11月 22 09:44:35 localhost.localdomain rabbitmq-server[7775]: Monitoring: https://rabbitmq.com/monitoring.html
11月 22 09:44:35 localhost.localdomain rabbitmq-server[7775]: Logs: /var/log/rabbitmq/[email protected]
11月 22 09:44:35 localhost.localdomain rabbitmq-server[7775]: /var/log/rabbitmq/rabbit@localhost_upgrade.log
11月 22 09:44:35 localhost.localdomain rabbitmq-server[7775]: Config file(s): (none)
11月 22 09:44:35 localhost.localdomain rabbitmq-server[7775]: Starting broker...systemd unit for activation check: "rabbitmq-server.service"
11月 22 09:44:35 localhost.localdomain systemd[1]: Started RabbitMQ broker.
11月 22 09:44:35 localhost.localdomain rabbitmq-server[7775]: completed with 0 plugins.
[root@localhost opt]#

• 开启RabbitMQ Web控制台
  RabbitMQ Web控制台默认情况下是关闭的，可以通过以下命令进行开启

[root@localhost opt]# rabbitmq-plugins enable rabbitmq_management
Enabling plugins on node rabbit@localhost:
rabbitmq_management
The following plugins have been configured:
  rabbitmq_management
  rabbitmq_management_agent
  rabbitmq_web_dispatch
Applying plugin configuration to rabbit@localhost...
The following plugins have been enabled:
  rabbitmq_management
  rabbitmq_management_agent
  rabbitmq_web_dispatch

started 3 plugins.
[root@localhost opt]# 

开启RabbitMQ Web控制台之后，还需要为该控制台创建管理用户，

rabbitmqctl add_user admin admin123
rabbitmqctl set_user_tags admin administrator
rabbitmqctl set_permissions -p / admin ".*" ".*" ".*"

以上命令的意思是：新建一个用户名为admin，密码为admin123的用户，并且给该用户设置成administrator的角色，最后给该用户授予访问 “/” 虚拟主机空间的权限

• 通过上一步的配置之后，可以通过访问系统的15672端口进行访问RabbitMQ Web控制台，用户名和密码是上一步创建的
  
  

至此，RabbitMQ安装配置完成。