Saltstack自动化部署Keepalived高可用

其他 2019-01-27 15:57:18 阅读次数: 0

实验环境：

hostname ip 角色 安装服务
server1 172.25.7.1 salt-master,salt-minion keepalived,haproxy
server2 172.25.7.2 salt-minion httpd
server3 172.25.7.3 salt-minion nginx
server4 172.25.7.4 salt-minion keepalived,haproxy

一、源码安装keepalived

base目录的部署

[root@server1 salt]# pwd
/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

编写install.sls

[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/null && make &> /dev/null && make install &> /dev/null
    - creates: /usr/local/keepalived

/etc/keepalived:
  file.directory:
    - mode: 755

/etc/sysconfig/keepalived:
  file.symlink:  #软连接方法
    - target: /usr/local/keepalived/etc/sysconfig/keepalived

/sbin/keepalived:
  file.symlink:
    - target: /usr/local/keepalived/sbin/keepalived

pkgs.make

[root@server1 pkgs]# cat  make.sls 
make:
  pkg.installed:
    - pkgs:
      - pcre-devel
      - openssl-devel
      - gcc 
      - malix

进行推送：

[root@server1 keepalived]# salt  server4 state.sls keepalived.install
server4:
----------
          ID: make-gcc
    Function: pkg.installed
      Result: True
     Comment: All specified packages are already installed
     Started: 10:08:28.709285
    Duration: 439.666 ms
     Changes:   
----------
          ID: kp-install
    Function: file.managed
        Name: /mnt/keepalived-2.0.6.tar.gz
      Result: True
     Comment: File /mnt/keepalived-2.0.6.tar.gz is in the correct state
     Started: 10:08:29.150619
    Duration: 63.684 ms
     Changes:   
----------
          ID: kp-install
    Function: 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
      Result: True
     Comment: /usr/local/keepalived exists
     Started: 10:08:29.214997
    Duration: 0.376 ms
     Changes:   
----------
          ID: /etc/keepalived
    Function: file.directory
      Result: True
     Comment: Directory /etc/keepalived updated
     Started: 10:08:29.215465
    Duration: 43.462 ms
     Changes:   
              ----------
              /etc/keepalived:
                  New Dir
----------
          ID: /etc/sysconfig/keepalived
    Function: file.symlink
      Result: True
     Comment: Created new symlink /etc/sysconfig/keepalived -> /usr/local/keepalived/etc/sysconfig/keepalived
     Started: 10:08:29.259057
    Duration: 1.264 ms
     Changes:   
              ----------
              new:
                  /etc/sysconfig/keepalived
----------
          ID: /sbin/keepalived
    Function: file.symlink
      Result: True
     Comment: Created new symlink /sbin/keepalived -> /usr/local/keepalived/sbin/keepalived
     Started: 10:08:29.260420
    Duration: 67.82 ms
     Changes:   
              ----------
              new:
                  /sbin/keepalived

Summary for server4
------------
Succeeded: 6 (changed=3)
Failed:    0
------------
Total states run:     6
Total run time: 616.272 ms

二、实现高可用

将server4的配置文件和脚本发至server1：

[root@server4 ~]# scp /usr/local/keepalived/etc/rc.d/init.d/keepalived  server1:/srv/salt/keepalived/files
[root@server4 ~]# scp /usr/local/keepalived/etc/keepalived/keepalived.conf  server1:/srv/salt/keepalived/files
[root@server1 files]# ls
keepalived  keepalived-2.0.6.tar.gz  keepalived.conf

keepalived配置文件修改

[root@server1 keepalived]# cd  files/
[root@server1 files]# vim  keepalived.conf
! Configuration File for keepalived

global_defs {
   notification_email {
    root@localhost
   }
   notification_email_from Alexandre.Cassen@firewall.loc
   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 }}
    priority {{ PRIORITY }}
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        172.25.7.100/24
    }
}

编写服务文件service.sls
添加jinja模板

[root@server1 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

修改pillar

[root@server1 srv]# cd  pillar
[root@server1 pillar]# mkdir  keepalived
[root@server1 keepalived]# vim  install.sls
{% if grains['fqdn'] == 'server1'%}
state: MASTER
vrid: 77
priority: 100
{% elif grains['fqdn'] == 'server4'%}
state: BACKUP
vrid: 77
priority: 50
{% endif %}

修改base

[root@server1 pillar]# vim  top.sls
base:
  '*':
   - web.install
   - keepalived.install

高级推送文件

[root@server1 salt]# ls
_grains  haproxy  httpd  keepalived  nginx  pkgs  top.sls  users
[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

开始推送:

[root@server1 salt]# salt '*'   state.highstate
server2:
----------
          ID: httpd
    Function: pkg.installed
      Result: True
     Comment: Package httpd is already installed
     Started: 10:30:57.496258
    Duration: 779.37 ms
     Changes:   
----------
          ID: php
    Function: pkg.installed
      Result: True
     Comment: Package php is already installed
     Started: 10:30:58.275901
    Duration: 1.123 ms
     Changes:   
----------
          ID: /etc/httpd/conf/httpd.conf
    Function: file.managed
      Result: True
     Comment: File /etc/httpd/conf/httpd.conf is in the correct state
     Started: 10:30:58.282447
    Duration: 229.195 ms
     Changes:   
----------
          ID: apache
    Function: service.running
        Name: httpd
      Result: True
     Comment: The service httpd is already running
     Started: 10:30:58.511951
    Duration: 40.932 ms
     Changes:   

Summary for server2
------------
Succeeded: 4
Failed:    0
------------
Total states run:     4
Total run time:   1.051 s
server3:
----------
          ID: make-gcc
    Function: pkg.installed
      Result: True
     Comment: All specified packages are already installed
     Started: 10:30:58.194559
    Duration: 813.467 ms
     Changes:   
----------
          ID: nginx-install
    Function: file.managed
        Name: /mnt/nginx-1.14.0.tar.gz
      Result: True
     Comment: File /mnt/nginx-1.14.0.tar.gz is in the correct state
     Started: 10:30:59.011037
    Duration: 136.234 ms
     Changes:   
----------
          ID: nginx-install
    Function: cmd.run
        Name: cd /mnt && tar zxf nginx-1.14.0.tar.gz && cd nginx-1.14.0 && sed -i.bak 's/CFLAGS="$CFLAGS -g"/#CFLAGS="$CFLAGS -g"/g' auto/cc/gcc && sed -i.bak 's/#define NGINX_VER          "nginx\/" NGINX_VERSION/#define NGINX_VER          "nginx"/g' src/core/nginx.h && ./configure --prefix=/usr/local/nginx --with-http_ssl_module --with-http_stub_status_module --with-threads --with-file-aio &> /dev/null && make > /dev/null && make install > /dev/null
      Result: True
     Comment: /usr/local/nginx exists
     Started: 10:30:59.148808
    Duration: 3.991 ms
     Changes:   
----------
          ID: nginx-group
    Function: group.present
        Name: nginx
      Result: True
     Comment: Group nginx is present and up to date
     Started: 10:30:59.153586
    Duration: 0.713 ms
     Changes:   
----------
          ID: nginx-user
    Function: user.present
        Name: nginx
      Result: True
     Comment: User nginx is present and up to date
     Started: 10:30:59.158538
    Duration: 1.918 ms
     Changes:   
----------
          ID: /usr/local/nginx/conf/nginx.conf
    Function: file.managed
      Result: True
     Comment: File /usr/local/nginx/conf/nginx.conf is in the correct state
     Started: 10:30:59.160698
    Duration: 147.27 ms
     Changes:   
----------
          ID: nginx-service
    Function: file.managed
        Name: /etc/init.d/nginx
      Result: True
     Comment: File /etc/init.d/nginx is in the correct state
     Started: 10:30:59.308190
    Duration: 77.362 ms
     Changes:   
----------
          ID: nginx-service
    Function: service.running
        Name: nginx
      Result: True
     Comment: The service nginx is already running
     Started: 10:30:59.386591
    Duration: 59.254 ms
     Changes:   

Summary for server3
------------
Succeeded: 8
Failed:    0
------------
Total states run:     8
Total run time:   1.240 s
server1:
----------
          ID: haproxy-install
    Function: pkg.installed
      Result: True
     Comment: All specified packages are already installed
     Started: 10:30:58.776878
    Duration: 897.935 ms
     Changes:   
----------
          ID: haproxy-install
    Function: file.managed
        Name: /etc/haproxy/haproxy.cfg
      Result: True
     Comment: File /etc/haproxy/haproxy.cfg is in the correct state
     Started: 10:30:59.678006
    Duration: 85.707 ms
     Changes:   
----------
          ID: haproxy-install
    Function: service.running
        Name: haproxy
      Result: True
     Comment: The service haproxy is already running
     Started: 10:30:59.765197
    Duration: 68.964 ms
     Changes:   
----------
          ID: make-gcc
    Function: pkg.installed
      Result: True
     Comment: All specified packages are already installed
     Started: 10:30:59.834457
    Duration: 1.059 ms
     Changes:   
----------
          ID: kp-install
    Function: file.managed
        Name: /mnt/keepalived-2.0.6.tar.gz
      Result: True
     Comment: File /mnt/keepalived-2.0.6.tar.gz is in the correct state
     Started: 10:30:59.835730
    Duration: 77.672 ms
     Changes:   
----------
          ID: kp-install
    Function: 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
      Result: True
     Comment: /usr/local/keepalived exists
     Started: 10:30:59.914451
    Duration: 0.418 ms
     Changes:   
----------
          ID: /etc/keepalived
    Function: file.directory
      Result: True
     Comment: Directory /etc/keepalived is in the correct state
     Started: 10:30:59.914982
    Duration: 0.532 ms
     Changes:   
----------
          ID: /etc/sysconfig/keepalived
    Function: file.symlink
      Result: True
     Comment: Symlink /etc/sysconfig/keepalived is present and owned by root:root
     Started: 10:30:59.915607
    Duration: 1.435 ms
     Changes:   
----------
          ID: /sbin/keepalived
    Function: file.symlink
      Result: True
     Comment: Symlink /sbin/keepalived is present and owned by root:root
     Started: 10:30:59.917140
    Duration: 1.248 ms
     Changes:   
----------
          ID: /etc/keepalived/keepalived.conf
    Function: file.managed
      Result: True
     Comment: File /etc/keepalived/keepalived.conf is in the correct state
     Started: 10:30:59.918485
    Duration: 37.75 ms
     Changes:   
----------
          ID: kp-service
    Function: file.managed
        Name: /etc/init.d/keepalived
      Result: True
     Comment: File /etc/init.d/keepalived is in the correct state
     Started: 10:30:59.956367
    Duration: 35.367 ms
     Changes:   
----------
          ID: kp-service
    Function: service.running
        Name: keepalived
      Result: True
     Comment: The service keepalived is already running
     Started: 10:30:59.992383
    Duration: 33.99 ms
     Changes:   

Summary for server1
-------------
Succeeded: 12
Failed:     0
-------------
Total states run:     12
Total run time:    1.242 s
server4:
----------
          ID: haproxy-install
    Function: pkg.installed
      Result: True
     Comment: The following packages were installed/updated: haproxy
     Started: 10:30:57.965762
    Duration: 6185.553 ms
     Changes:   
              ----------
              haproxy:
                  ----------
                  new:
                      1.4.24-2.el6
                  old:
----------
          ID: haproxy-install
    Function: file.managed
        Name: /etc/haproxy/haproxy.cfg
      Result: True
     Comment: File /etc/haproxy/haproxy.cfg updated
     Started: 10:31:04.153916
    Duration: 86.389 ms
     Changes:   
              ----------
              diff:
                  ---  
                  +++  
                  @@ -60,27 +60,9 @@
                   #---------------------------------------------------------------------
                   # main frontend which proxys to the backends
                   #---------------------------------------------------------------------
                  -frontend  main *:5000
                  -    acl url_static       path_beg       -i /static /images /javascript /stylesheets
                  -    acl url_static       path_end       -i .jpg .gif .png .css .js
                  -
                  -    use_backend static          if url_static
                  +frontend  main *:80
                       default_backend             app
                  -
                  -#---------------------------------------------------------------------
                  -# static backend for serving up images, stylesheets and such
                  -#---------------------------------------------------------------------
                  -backend static
                  -    balance     roundrobin
                  -    server      static 127.0.0.1:4331 check
                  -
                  -#---------------------------------------------------------------------
                  -# round robin balancing between the various backends
                  -#---------------------------------------------------------------------
                   backend app
                       balance     roundrobin
                  -    server  app1 127.0.0.1:5001 check
                  -    server  app2 127.0.0.1:5002 check
                  -    server  app3 127.0.0.1:5003 check
                  -    server  app4 127.0.0.1:5004 check
                  -
                  +    server  app1 172.25.7.2:80 check
                  +    server  app2 172.25.7.3:80 check
----------
          ID: haproxy-install
    Function: service.running
        Name: haproxy
      Result: True
     Comment: Started Service haproxy
     Started: 10:31:04.247499
    Duration: 222.761 ms
     Changes:   
              ----------
              haproxy:
                  True
----------
          ID: make-gcc
    Function: pkg.installed
      Result: True
     Comment: All specified packages are already installed
     Started: 10:31:04.473303
    Duration: 1.457 ms
     Changes:   
----------
          ID: kp-install
    Function: file.managed
        Name: /mnt/keepalived-2.0.6.tar.gz
      Result: True
     Comment: File /mnt/keepalived-2.0.6.tar.gz is in the correct state
     Started: 10:31:04.474858
    Duration: 98.192 ms
     Changes:   
----------
          ID: kp-install
    Function: 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
      Result: True
     Comment: /usr/local/keepalived exists
     Started: 10:31:04.573982
    Duration: 0.382 ms
     Changes:   
----------
          ID: /etc/keepalived
    Function: file.directory
      Result: True
     Comment: Directory /etc/keepalived is in the correct state
     Started: 10:31:04.574456
    Duration: 0.485 ms
     Changes:   
----------
          ID: /etc/sysconfig/keepalived
    Function: file.symlink
      Result: True
     Comment: Symlink /etc/sysconfig/keepalived is present and owned by root:root
     Started: 10:31:04.575030
    Duration: 3.815 ms
     Changes:   
----------
          ID: /sbin/keepalived
    Function: file.symlink
      Result: True
     Comment: Symlink /sbin/keepalived is present and owned by root:root
     Started: 10:31:04.578959
    Duration: 1.461 ms
     Changes:   
----------
          ID: /etc/keepalived/keepalived.conf
    Function: file.managed
      Result: True
     Comment: File /etc/keepalived/keepalived.conf is in the correct state
     Started: 10:31:04.580533
    Duration: 35.922 ms
     Changes:   
----------
          ID: kp-service
    Function: file.managed
        Name: /etc/init.d/keepalived
      Result: True
     Comment: File /etc/init.d/keepalived is in the correct state
     Started: 10:31:04.616681
    Duration: 66.378 ms
     Changes:   
----------
          ID: kp-service
    Function: service.running
        Name: keepalived
      Result: True
     Comment: The service keepalived is already running
     Started: 10:31:04.684128
    Duration: 46.462 ms
     Changes:   

Summary for server4
-------------
Succeeded: 12 (changed=3)
Failed:     0
-------------
Total states run:     12
Total run time:    6.749 s

这里写图片描述
在浏览器访问vip
这里写图片描述
这里写图片描述
当master的keepalived宕机

[root@server1 salt]# /etc/init.d/keepalived stop
Stopping keepalived:                                       [  OK  ]

这里写图片描述
负载均衡保持高可用
这里写图片描述

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