saltstack自动化运维----saltstack自动化部署keepalived(5)

约定不等于承诺〃 2023-06-17 09:57 24阅读 0赞

keepalived在之前的博客详细讲解过，在这一篇就不详细讲解了  
见到说明即可  
`keepalived是基于VRRP协议实现的保证集群高可用的一个服务软件，主要功能是实现真机的故障隔离和负载均衡器间的失败切换，防止单点故障。`  
将keepaliver和haproxy结合起来，使用saltsack自动部署  
在我关于saltsack自动化运维相关的博客中，自动部署了nginx、apache、haproxy，基于他们的基础上，再添加一台主机，将keepalived和haproxy结合起来。  
添加server5：172.25.60.5，将其安装salt-minion，并与server1连接起来  
具体操作查看我的上一篇博客  
重点：首先确定server1能跟其他4个主机相连  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1MDM0Mzky_size_16_color_FFFFFF_t_70]  
开始部署：  
![在这里插入图片描述][20191128154552225.png]  
![在这里插入图片描述][20191128154547502.png]  
keepalived也可以使用源码安装，由于nginnx使用过源码安装，所以以此类推，keepalived的源码安装之后可以尝试  
![在这里插入图片描述][20191128154559276.png]

keepalived-install:
      pkg.installed:
        - pkgs:
          - keepalived

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1MDM0Mzky_size_16_color_FFFFFF_t_70 1]

安装成功后，必定生成配置文件，将server4上的配置文件拷贝到files里面  
![在这里插入图片描述][20191128154754364.png]  
![在这里插入图片描述][20191128155849316.png]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1MDM0Mzky_size_16_color_FFFFFF_t_70 2]  
修改完配置文件，打开keepalived服务  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1MDM0Mzky_size_16_color_FFFFFF_t_70 3]

include:
      - keepalived.install
    
    
    /etc/keepalived/keepalived.conf:
      file.managed:
        - source: salt://keepalived/files/keepalived.conf
        - template: jinja
        {
        % if grains['fqdn'] == 'server4' %}
        - STATE: MASTER
        - PRIORITY: 100
        {
        % elif grains['fqdn'] == 'server5' %}
        - STATE: BACKUP
        - PRIORITY: 50
        {
        % endif %}
    
    keepalived-service:
      service.running:
        - name: keepalived
        - repolad: true
        - watch:
          - file: /etc/keepalived/keepalived.conf

进行全局推送，可以看到server4和server5上都有haproxy和keepalived  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1MDM0Mzky_size_16_color_FFFFFF_t_70 4]

推送结果，可以看到每台主机上的操作

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1MDM0Mzky_size_16_color_FFFFFF_t_70 5]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1MDM0Mzky_size_16_color_FFFFFF_t_70 6]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1MDM0Mzky_size_16_color_FFFFFF_t_70 7]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1MDM0Mzky_size_16_color_FFFFFF_t_70 8]  
keppalived的部署结束  
现在查看部署结果  
根据上面的设置，server4为主节点，server5为备节点  
在 server4上查看到vip，server5上没有  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1MDM0Mzky_size_16_color_FFFFFF_t_70 9]![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1MDM0Mzky_size_16_color_FFFFFF_t_70 10]

通过浏览器访问：轮询成功  
![在这里插入图片描述][20191128160103770.png]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1MDM0Mzky_size_16_color_FFFFFF_t_70 11]  
当server4(主节点)上的keepalived宕掉，再次查看vip，会发现vip跑到了server5上，server5(备节点)上线  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1MDM0Mzky_size_16_color_FFFFFF_t_70 12]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1MDM0Mzky_size_16_color_FFFFFF_t_70 13]  
而浏览器访问的内容没有卡顿，依旧可以访问  
当主节点的keepalived起来之后，vip再次回到主节点  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1MDM0Mzky_size_16_color_FFFFFF_t_70 14]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1MDM0Mzky_size_16_color_FFFFFF_t_70 15]  
而浏览器不受其影响，实现了高可用。

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