實驗環境:在SaltStack部署完畢的前提下進行實驗：

系統： redhat6

server1 172.25.45.1 salt-master    keepalived

server2 172.25.45.2  salt-minion   apache

server2 172.25.45.3  salt-minion   nginx

server4 172.25.45.4 salt-minion    keepalived

server4的yum源配置負載均衡包：

[[email protected] ~]# vim /etc/yum.repos.d/rhel-source.repo [
rhel-source] 
name=Red Hat Enterprise Linux $releasever - $basearch - Source 
baseurl=http://172.25.45.250/rhel6.5
enabled=1 
gpgcheck=1
 
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release 
[saltsack] 
name=saltsack 
baseurl=http://172.25.45.250/rhel6 enabled=1 
gpgcheck=0 

[LoadBalancer] 
name=LoadBalancer 
baseurl=http://172.25.45.250/rhel6.5/LoadBalancer 
gpgcheck=0
 

一、安裝keepalived（原始碼編譯）

[[email protected] ~]# cd /srv/salt/
[[email protected] salt]# mkdir keepalived
[[email protected] salt]# cd keepalived/
[[email protected] keepalived]# mkdir files
[[email protected] keepalived]# cd files/
[[email protected] files]# mv /root/keepalived-2.0.6.tar.gz .
[
 
[email protected] files]# ls
keepalived-2.0.6.tar.gz
[[email protected] files]# cd ..
[[email protected] keepalived]# vim install.sls
kp-install: 
  pkg.installed:
    - pkgs:
      - gcc:
      - pcre-devel:
      - openssl-devel  

  file.managed: 
    - name: /mnt/keepalived-2.0.6.tar.gz 
    - source: salt://keepalived/files/keepalived-2.0.6.tar.gz 
  cmd.run: 
    - name: cd /mnt && tar zxf keepalived-2.0.6.tar.gz && cd keepalived-2.0.6 
&& ./configure --prefix=/usr/local/keepalived --with-init=SYSV &>/dev/null && 
make &>/dev/null && make install &>/dev/null 
    - creates: /usr/local/keepalived
[[email protected] keepalived]# salt server4 state.sls keepalived.install   #推送

在server4實時檢視程序：

安裝依賴包

建立預編譯環境

編譯中

編譯完成

檢視server4中keepalived安裝是否成功並將server4上的keepalived配置檔案傳給server1

[[email protected] ~]# cd /mnt/
[[email protected] mnt]# ls
keepalived-2.0.6  keepalived-2.0.6.tar.gz
[[email protected] mnt]# cd /usr/local/keepalived/
[[email protected] keepalived]# ls
bin  etc  sbin  share
[[email protected] keepalived]# cd etc/rc.d/init.d/
[[email protected] init.d]# ls
keepalived
[[email protected] init.d]# scp keepalived server1:/srv/salt/keepalived/files/
[[email protected] init.d]# cd /usr/local/keepalived/etc/keepalived/
[[email protected] keepalived]# ls
keepalived.conf  samples
[[email protected] keepalived]# scp keepalived.conf server1:/srv/salt/keepalived/files/

二·做連結

[[email protected] keepalived]# vim install.sls    ##新增以下內容做軟連線
/etc/keepalived: 
  file.directory: 
    - mode: 755 

/etc/sysconfig/keepalived: 
  file.symlink: 
    - target: /usr/local/keepalived/etc/sysconfig/keepalived 

/sbin/keepalived: 
  file.symlink: 
    - target: /usr/local/keepalived/sbin/keepalived
[[email protected] keepalived]# salt server4 state.sls keepalived.install   #推送

在server4中檢視：

[[email protected] keepalived]# ll /etc/sysconfig/keepalived
[[email protected] keepalived]# ll /sbin/keepalived 

三、修改keepalived配置檔案

[[email protected] keepalived]# cd /srv/salt/keepalived/files/
[[email protected] files]# vim keepalived.conf    ##刪除31行之後 修改vip及相關內容
! Configuration File for keepalived

global_defs {
   notification_email {
     [email protected]
   }
   notification_email_from [email protected]
   smtp_server 127.0.0.1
   smtp_connect_timeout 30
   router_id LVS_DEVEL
   vrrp_skip_check_adv_addr
   #vrrp_strict
   vrrp_garp_interval 0
   vrrp_gna_interval 0
}

vrrp_instance VI_1 {
    state {{ STATE }}
    interface eth0
    virtual_router_id {{vrid}}
    advert_int 1
    priority {{priority}}
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        172.25.45.100
    }
}

四、服務檔案（jinja模板）

[[email protected] files]# cd /srv/salt/keepalived/
[[email protected] keepalived]# ls
files  install.sls
[[email protected] keepalived]# vim service.sls
include:
  - keepalived.install

/etc/keepalived/keepalived.conf:
  file.managed:
    - source: salt://keepalived/files/keepalived.conf
    - template: jinja
    - context:
      STATE: {{ pillar['state'] }}
      vrid: {{ pillar['vrid'] }}
      priority: {{ pillar['priority'] }}

kp-service:
  file.managed:
    - name: /etc/init.d/keepalived
    - source: salt://keepalived/files/keepalived
    - mode: 755
  service.running:
    - name: keepalived
    - reload: True
    - watch:
      - file: /etc/keepalived/keepalived.conf

五、定義變數

[[email protected] ~]# cd /srv/pillar/
[[email protected] pillar]# mkdir keepalived
[[email protected] pillar]# cd keepalived/
[[email protected] keepalived]# vim install.sls
{% if grains['fqdn'] == 'server1' %} 
state: MASTER 
vrid: 45
priority: 100 
{% elif grains['fqdn'] == 'server4' %} 
state: BACKUP 
vrid: 45 
priority: 50 
{% endif %}

[[email protected] keepalived]# cd /srv/pillar/
[[email protected] pillar]# ls
keepalived  top.sls  web
[[email protected] pillar]# cd web/
[[email protected] web]# vim install.sls     ##之前做負載均衡的檔案
{% if grains['fqdn'] == 'server2' %}
webserver: apache
bind: 172.25.45.2
port: 80
{% elif grains['fqdn'] == 'server3' %}
webserver: nginx
{% endif %}
[[email protected] files]# salt server4 state.sls keepalived.service   #推送

六、修改base

[[email protected] web]# cd /srv/pillar/
[[email protected] pillar]# vim top.sls 
base: 
  'server2': 
    - web.install 
  'server3': 
    - web.install 
  'server1': 
    - keepalived.install 
  'server4': 
    - keepalived.install

七、安裝mailx 編輯高階推送檔案

[[email protected] salt]# yum install -y mailx
[[email protected] pillar]# cd /srv/salt/
[[email protected] salt]# ls
apache  _grains  haproxy  keepalived  _modules  nginx  pkgs  top.sls  users
[[email protected] salt]# vim top.sls 
base:
  'server1':
    - haproxy.install
    - keepalived.service
  'server4':
    - haproxy.install
    - keepalived.service
  'server2':
    - apache.install
  'server3':
    - nginx.service

測試：

[[email protected] salt]# salt '*' state.highstate
[[email protected] salt]# ip addr

1、高階推送成功

在server4中：

2、訪問172.25.45.100（vip）實現負載均衡

當在server1中關閉keepalived時，負載均衡不會受影響.此時vip在server4上  實現高可用

server1開啟服務後，VIP還是會回到server1上