SaltStack之Pillar和Jinja部署LVS+Keepalived+Haproxy

一、Pillar和Jinja简介

Pillar是Salt用来分发全局变量到所有minions的一个接口
官方文档介绍：http://docs.saltstack.cn/topics/pillar/index.html
Jinja加载工具为jinja模板提供了一个更强大的后端
官方文档介绍http://docs.saltstack.cn/ref/renderers/all/salt.renderers.jinja.html

二、部署haproxy+keepalived+nginx

本此实验的所以资源及源代码均已上传，需要的可以下载交流
下载地址：srv.tar.gz

1.环境部署安排：

系统：redhat6.5
server5：salt—master
server6：keepalived+haproxy
server7：keepalived+haproxy
server8：nginx
server9：nginx

2.在salt—master上创建top.sls

vim /srv/salt/top.sls
base:
  'server6':
    - keepalived.service
    - haproxy.service
  'server7':
    - keepalived.service
    - haproxy.service
  'roles:nginx':
    - match: grain
    - nginx.service

3.在salt—master上创建my_grains.py

[root@server5 salt]# vim /srv/salt/_grains/my_grains.py
#!/usr/bin/env python

def my_grains():
    grains = {}
    grains['roles'] = 'nginx'
    return grains

4.在salt-master上创建nginx部署

4.1 安装脚本install.sls

vim /srv/salt/nginx/install.sls

include:
  - pkg.nginx

nginx-install:
  file.managed:
    - name: /mnt/nginx-1.12.0.tar.gz
    - source: salt://nginx/files/nginx-1.12.0.tar.gz

  cmd.run:
    - name: cd /mnt && tar zxf nginx-1.12.0.tar.gz && cd nginx-1.12.0 && sed -i.bak 's/#define NGINX_VER          "nginx\/" NGINX_VERSION/#define NGINX_VER          "nginx"/g' src/core/nginx.h && sed -i.bak 's/CFLAGS="$CFLAGS -g"/#CFLAGS="$CFLAGS -g"/g' auto/cc/gcc && ./configure --prefix=/usr/local/nginx --with-http_ssl_module --with-http_stub_status_module && make && make install
    - creates: /usr/local/nginx


/usr/local/nginx/html/index.html:
  file.managed:
    - source: salt://nginx/files/index.html
    - template: jinja

4.2 服务启动脚本service.sls

vim /srv/salt/nginx/service.sls

include:
  - nginx.install
  - user.nginx

/usr/local/nginx/conf/nginx.conf:
  file.managed:
    - source: salt://nginx/files/nginx.conf
    - mode: 644

/etc/init.d/nginx:
  file.managed:
    - source: salt://nginx/files/nginx
    - mode: 755

nginx-service:
  service.running:
    - name: nginx
    - enable: true
    - reload: true
    - require:
      - file: /etc/init.d/nginx
    - watch:
      - file: /usr/local/nginx/conf/nginx.conf

4.3 依赖安装脚本nginx.sls

vim /srv/salt/pkg/nginx.sls
nginx-pkg:
  pkg.installed:
    - pkgs:
      - gcc
      - pcre-devel
      - openssl-devel
      - zlib-devel

4.4 pillar部署方案脚本web.sls

vim /srv/pillar/nginx/web.sls
{% if grains['host'] == 'server7' %}
bind: 172.25.27.7
{% elif grains['host'] == 'server8' %}
bind: 172.25.27.8
{% endif %}

4.5 pillar脚本top.sls

vim /srv/pillar/top.sls
base:
  'server7':
    - nginx.web
  'server8':
    - nginx.web

4.6 用户创建脚本

vim /srv/salt/user/nginx.sls
nginx:
  user.present:
    - uid: 800
    - shell: /sbin/nologin
    - home: /usr/local/nginx
    - createhome: false

5.在salt-master上创建haproxy部署

5.1安装脚本

vim /srv/salt/haproxy/install.sls
include:
  - pkg.haproxy
  - user.haproxy

haproxy-install:
  file.managed:
    - name: /mnt/haproxy-1.6.11.tar.gz
    - source: salt://haproxy/files/haproxy-1.6.11.tar.gz

  cmd.run:
    - name: cd /mnt && tar zxf haproxy-1.6.11.tar.gz && cd haproxy-1.6.11 && make TARGET=linux26 USE_PCRE=1 USE_OPENSSL=1 USE_ZLIB=1 PREFIX=/usr/local/haproxy && make TARGET=linux26 USE_PCRE=1 USE_OPENSSL=1 USE_ZLIB=1 PREFIX=/usr/local/haproxy install
    - creates: /usr/local/haproxy


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

/etc/haproxy/haproxy.cfg:
  file.managed:
    - source: salt://haproxy/files/haproxy.cfg

/etc/init.d/haproxy:
  file.managed:
    - source: salt://haproxy/files/haproxy
    - mode: 755

5.2 服务启动脚本service.sls

vim /srv/salt/haproxy/service.sls
include:
  - haproxy.install

haproxy-service:
  service.running:
    - name: haproxy
    - enable: true
    - reload: true
    - watch:
      - file: /etc/haproxy/haproxy.cfg

5.3 依赖安装脚本nginx.sls

vim /srv/salt/pkg/haproxy.sls
haproxy-pkg:
  pkg.installed:
    - pkgs:
      - gcc
      - pcre-devel
      - openssl-devel
      - zlib-devel

5.4 用户创建脚本

vim /srv/salt/user/haproxy.sls
haproxy:
  group.present:
    - gid: 200
  user.present:
    - uid: 200
    - gid: 200
    - shell: /sbin/nologin
    - home: /usr/local/haproxy
    - createhome: false

6.在salt-master上创建keepalived部署

6.1安装脚本

vim /srv/salt/keepalived/install.sls

{% set keepalived_version = '1.3.6' %}

include:
  - pkg.keepalived

keepalived-install:
  file.managed:
    - name: /mnt/keepalived-{{keepalived_version}}.tar.gz
    - source: salt://keepalived/files/keepalived-{{keepalived_version}}.tar.gz

  cmd.run:
    - name: cd /mnt && tar zxf keepalived-{{keepalived_version}}.tar.gz && cd keepalived-{{keepalived_version}} && ./configure --prefix=/usr/local/keepalived --with-init=SYSV && make && make install
    - creates: /usr/local/keepalived

/etc/sysconfig/keepalived:
  file.managed:
    - source: salt://keepalived/files/keepalived
    - mode: 644
    - user: root

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

/etc/keepalived/keepalived.conf:
  file.managed:
    - source: salt://keepalived/files/keepalived.conf
    - mode: 644
    - template: jinja
    {% if grains['fqdn'] == 'server6' %}
    - STATE: MASTER
    - PRIORITY: 100
    {% elif grains['fqdn'] == 'server7' %}
    - STATE: BACKUP
    - PRIORITY: 50
    {% endif %}


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

/etc/init.d/keepalived:
  file.managed:
    - source: salt://keepalived/files/keepalived-init
    - mode: 755

6.2 服务启动脚本service.sls

vim /srv/salt/keepalived/service.sls
include:
  - keepalived.install

keepalived-service:
  service.running:
    - name: keepalived
    - enable: true
    - reload: true
    - watch:
      - file: /etc/keepalived/keepalived.conf

6.3 依赖安装脚本keepalived.sls

vim /srv/salt/pkg/keepalived.sls
keepalived-pkg:
  pkg.installed:
    - pkgs:
      - gcc
      - pcre-devel
      - openssl-devel
      - zlib-devel

6.4 keepalived 配置文件配置

! Configuration File for keepalived

global_defs {
   notification_email {
    root@localhost
   }
   notification_email_from keepalived@localhost
   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 51
    priority {{ PRIORITY }}
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        172.25.27.100/24
    }
}
virtual_server 172.25.27.100 80 {
    delay_loop 6
    lb_algo rr
    lb_kind DR
    persistence_timeout 50
    protocol TCP

    real_server 172.25.27.8 80 {
        weight 1
        TCP_CHECK {
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }

    real_server 172.25.27.9 80 {
        weight 1
        TCP_CHECK {
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }
}

7.安装部署

上面只是完成了脚本，巧妇难为无米之炊，我们还需要一些相应的包和配置文件来支持安装，这里不做详细介绍
最后配置下nginx的默认发布页

[root@server5 salt]# vim nginx/files/index.html

<html>
<head>
<title>Welcome to nginx!title>
<style>
    body {
        width: 35em;
        margin: 0 auto;
        font-family: Tahoma, Verdana, Arial, sans-serif;
    }
style>
head>
<body>
<h1>Welcome to nginx! {{ grains['host'] }}  h1>       ##修改这里，用以区分
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.orga>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.coma>.p>

<p><em>Thank you for using nginx.em>p>
body>
html>

再写一个测试页

vim /srv/salt/nginx/files/test.html
data from {{ HOST }} 

相应的/srv/salt/nginx/install.sls也要改动一下

vim /srv/salt/nginx/install.sls  ##在最后添加以下内容

/usr/local/nginx/html/test.html:
  file.managed:
    - source: salt://nginx/files/test.html
    - template: jinja
    - HOST: {{ grains['host'] }}

最终的目录结构是这样的

[root@server5 srv]# tree
.
├── pillar
│   ├── nginx
│   │   └── web.sls
│   └── top.sls
└── salt
    ├── haproxy
    │   ├── files
    │   │   ├── haproxy
    │   │   ├── haproxy-1.6.11.tar.gz
    │   │   └── haproxy.cfg
    │   ├── install.sls
    │   └── service.sls
    ├── keepalived
    │   ├── files
    │   │   ├── keepalived
    │   │   ├── keepalived-1.3.6.tar.gz
    │   │   ├── keepalived.conf
    │   │   └── keepalived-init
    │   ├── install.sls
    │   └── service.sls
    ├── nginx
    │   ├── files
    │   │   ├── index.html
    │   │   ├── nginx
    │   │   ├── nginx-1.12.0.tar.gz
    │   │   ├── nginx.conf
    │   │   └── test.html
    │   ├── install.sls
    │   └── service.sls
    ├── pkg
    │   ├── haproxy.sls
    │   ├── keepalived.sls
    │   └── nginx.sls
    ├── top.sls
    └── user
        ├── haproxy.sls
        └── nginx.sls
[root@server5 ~]# salt '*' saltutil.refresh_pillar     ##可不用执行
[root@server5 salt]# salt server[8,9] saltutil.sync_grains              ##可不用执行
[root@server5 salt]# salt '*' state.highstate

部署成功浏览器测试：

浏览器有缓存，我们通过shell查看轮询效果