- Production Ready OpenStack：Recipes for Successful Environments
- Arthur Berezin
- 219字
- 2021-07-09 21:45:14
Installing RabbitMQ
OpenStack uses a message broker for components to inner communicate. Red Hat-based operating systems (for example, RHEL, CentOS, and Fedora) can run RabbitMQ or QPID message brokers. Both provide roughly similar performance, but as RabbitMQ is more widely used message broker with OpenStack, we are going use it as a message broker for our OpenStack environment.
How to do it...
- Install RabbitMQ from the yum repository:
Run the following commands on the controller node!
[root@controller ~]# yum install rabbitmq-server -yRabbitMQ is written in erlang and will probably bring some erlang dependency packages along.
- To start the RabbitMQ Linux services, start a service named
rabbitmq-server:[root@controller ~]# systemctl start rabbitmq-server.service - Now enable it, to make sure that it starts on a system reboot:
[root@controller ~]# systemctl enable rabbitmq-server.service
There's more...
RabbitMQ maintains its own user accounts and passwords. By default, the user name guest is created with the default password guest. As it is a major security concern to keep default password, we should change this password. We can use the command rabbitmqctl to change guest's account password:
[root@controller ~]# rabbitmqctl change_password guest guest_password Changing password for user "guest" ... ...done.
We need to allow other services to be able to access the message broker over the firewall using firewall-cmd command:
[root@controller ~]# firewall-cmd --add-port=5672/tcp --permanent success
- 案例式C語言程序設計
- Cocos2D-X權威指南（第2版）
- C程序設計簡明教程（第二版）
- OpenShift開發指南（原書第2版）
- Mastering phpMyAdmin 3.4 for Effective MySQL Management
- C語言程序設計（第2版）
- C語言程序設計
- Express Web Application Development
- OpenCV 4計算機視覺項目實戰（原書第2版）
- Julia 1.0 Programming Complete Reference Guide
- 微信小程序開發實戰：設計·運營·變現（圖解案例版）
- 精通Spring：Java Web開發與Spring Boot高級功能
- JavaScript編程精解（原書第2版）
- Groovy 2 Cookbook
- UI動效設計從入門到精通