自动化部署高可用负载均衡集群

最新推荐文章于 2022-08-01 20:28:08 发布

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最新推荐文章于 2022-08-01 20:28:08 发布

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本文链接：https://blog.youkuaiyun.com/weixin_44846409/article/details/96902148

该博客详细介绍了如何使用saltstack搭建httpd和nginx服务，通过haproxy实现负载均衡，以及配置高可用性，利用keepalived确保VIP在server节点间的自动切换，保证服务的连续性。

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实验环境

主机			IP		 		服务				角色
server1		172.25.19.1		haproxy，keepalived		master
server2		172.25.19.1		httpd					minion
server3		172.25.19.1		nginx					minion
server4		172.25.19.1		haproxy，keepalived		minion

server1/2/3/4都要指定master

[root@server1 ~]# cd /etc/salt/
[root@server1 salt]# vim minion
master: 172.25.19.1

开启服务

[root@server1 salt]# systemctl start salt-master
[root@server1 salt]# systemctl start salt-minion
[root@server2 salt]# systemctl start salt-minion
[root@server3 salt]# systemctl start salt-minion
[root@server4 salt]# systemctl start salt-minion

交换公钥

[root@server1 salt]# salt-key -L     
[root@server1 salt]# salt-key -A     # 添加显示的所有主机 
[root@server1 salt]# salt-key -L

一、saltstack搭建httpd服务

[root@server1 minions]# cd /etc/salt/
[root@server1 salt]# vim master   
 674 file_roots:
 675   base:
 676     - /srv/salt      ##这个目录没有，需要自己创建
[root@server1 salt]# mkdir /srv/salt
[root@server1 salt]# mkdir httpd
[root@server1 salt]# cd httpd/
[root@server1 httpd]# mkdir files
[root@server1 httpd]# cd files/
[root@server1 files]# pwd
/etc/salt/httpd/files
[root@server1 files]# ls
httpd.conf         ##主机copy一个过来
[root@server1 files]# cd ..
[root@server1 httpd]# ls
files  install.sls  service.sls
[root@server1 httpd]# cat install.sls       ##安装httpd
apache-install:
  pkg.installed:
    - pkgs:
      - httpd
[root@server1 httpd]# cat  service.sls    ##启动httpd
include:
  - httpd.install

/etc/httpd/conf/httpd.conf:
  file.managed:
    - source: salt://httpd/files/httpd.conf

httpd-service:
  service.running:
    - name: httpd
    - enable: False
    - reload: True
      watch:
        - file: /etc/httpd/conf/httpd.conf

[root@server1 httpd]# salt server3 state.sls nginx.service

二、saltstack搭建nginx

编辑自动编译安装nginx文件

 [root@server1 salt]# mkdir nginx
 [root@server1 salt]# cd nginx/
 [root@server1 nginx]# mkdir files
 [root@server1 nginx]# cd files/
 [root@server1 files]# ls
 nginx-1.1