开启一个server4做为高可用
配置server4的salt-minion 在之前博客的saltstack安装部署有步骤
配置server4 yum源
[root@server4 ~]# vim /etc/yum.repos.d/rhel-source.repo
[salt]
name=saltstack
baseurl=http://172.25.40.250/rhel6
enabled=1
gpgcheck=0
[LoadBalancer]
name=LoadBalancer
baseurl=http://172.25.40.250/rhel6.5/LoadBalancer
gpgcheck=0
将keepalived安装脚本推送到server4
[root@server1 ~]# cd /srv/salt/
[root@server1 salt]# mkdir keepalived
[root@server1 salt]# cd keepalived/
[root@server1 keepalived]# mkdir files
[root@server1 keepalived]# cd files
[root@server1 files]# ls
keepalived-2.0.6.tar.gz
[root@server1 files]# cd ..
[root@server1 keepalived]# vim install.sls
include:
- pkgs.make
kp-install:
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/nul
l && make &> /dev/null && make install &> /dev/null
- creates: /usr/local/keepalived
[root@server1 keepalived]# salt server4 state.sls keepalived.install
【server4】
[root@server4 ~]# cd /mnt
[root@server4 mnt]# ll -d /usr/local/keepalived/
[root@server4 mnt]# ls
[root@server4 mnt]# cd /usr/local/keepalived/
[root@server4 keepalived]# ls
[root@server4 keepalived]# cd etc/
[root@server4 etc]# ls
[root@server4 etc]# cd rc.d/
[root@server4 rc.d]# ls
[root@server4 rc.d]# cd init.d/
[root@server4 init.d]# ls
[root@server4 init.d]# scp keepalived server1:/srv/salt/keepalived/files
[root@server4 init.d]# cd ..
[root@server4 rc.d]# cd ..
[root@server4 etc]# ls
[root@server4 etc]# cd sysconfig/
[root@server4 sysconfig]# cd ..
[root@server4 etc]# cd ..
[root@server4 keepalived]# cd etc/
[root@server4 etc]# cd keepalived/
[root@server4 keepalived]# ls
keepalived.conf samples
[root@server4 keepalived]# scp keepalived.conf server1:/srv/salt/keepalived/files
继续编写keepalived安装脚本推送到server4
[root@server1 keepalived]# vim install.sls
在原来的脚本上添加以下内容:建立目录并制作软链接
/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
[root@server1 keepalived]# salt server4 state.sls keepalived.install
在server4上查看软链接是否存在
编写keepalived运行脚本并推送到server4上
[root@server1 keepalived]# pwd
/srv/salt/keepalived/
[root@server1 keepalived]# vim service.sls
include:
- keepalived.install
/etc/keepalived/keepalived.conf:
file.managed:
- source: salt://keepalived/files/keepalived.conf
- template: jinja
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
[root@server1 keepalived]# cd /srv/pillar
[root@server1 pillar]# mkdir keepalived
[root@server1 pillar]# cd keepalived/
[root@server1 keepalived]# vim install.sls
[root@server1 keepalived]# cp ../web/install.sls .
[root@server1 keepalived]# vim install.sls
{% if grains['fqdn'] == 'server1' %}
state: MASTER
vrid: 40
priority: 100
{% elif grains['fqdn'] == 'server4' %}
state: MASTER
vrid: 40
priority: 50
{% endif %}
[root@server1 keepalived]# cd ..
[root@server1 pillar]# ls
keepalived top.sls web
[root@server1 pillar]# vim top.sls
base:
'*':
- web.install
- keepalived.install
[root@server1 pillar]# cd ..
[root@server1 srv]# cd salt/
[root@server1 salt]# cd keepalived/
[root@server1 keepalived]# vim service.sls
7 - template: jinja 在这行后面添加以下内容
8 - context:
9 STATE: {{ pillar['state'] }}
10 VRID: {{ pillar['vrid'] }}
11 PRIORITY: {{ pillar['priority'] }}
[root@server1 keepalived]# vim files/keepalived.conf
3 global_defs {
4 notification_email {
5 root@localhost
6 }
8 smtp_server 127.0.0.1
12 #vrrp_strict
18 state {{ STATE }}
19 interface eth0
20 virtual_router_id {{ VRID }}
21 priority {{ PRIORITY }}
27 virtual_ipaddress {
28 172.25.40.100
29 }
删除32行以下所有内容
[root@server1 keepalived]# salt server4 state.sls keepalived.service
在【server4】上测试:
[root@server4 keepalived]# ps ax
[root@server4 keepalived]# ip addr #还没有master的时候VIP 是在server4上
[root@server4 keepalived]# yum install -y mailx
推送高可用所有模块
[root@server1 keepalived]# yum install -y mailx
[root@server1 keepalived]# cd ..
[root@server1 salt]# vim top.sls
base:
'server1':
- haproxy.install
- keepalived.service
'server4':
- haproxy.install
- keepalived.service
'roles:apache':
- match: grain
- httpd.install
'roles:nginx':
- match: grain
- nginx.service
[root@server1 salt]# salt '*' state.highstate
没有报错说明推送成功
在【server1】上查看VIP发现已经回来了
[root@server1 salt]# ip addr
在网页(客户端)访问http://172.25.40.100/
高可用测试:
如果在server1将keepalived关闭看是否会有高可用
[root@server1 salt]# /etc/init.d/keepalived stop
网页访问依旧可以访问到页面
此时VIP已经转移到server4上
再次将server1上的keepalived开启,VIP会从server4再次转回server1