10.saltstack配置管理-业务模块-keepalived

最新推荐文章于 2020-06-13 00:18:01 发布

yongbang_yan

最新推荐文章于 2020-06-13 00:18:01 发布

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分类专栏：运维 saltstack

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本文介绍使用SaltStack配置Keepalived集群的过程。通过编写Salt状态文件和Jinja模板实现不同节点间的Keepalived参数差异化配置，并展示了具体的Salt状态文件和配置文件样例。

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业务引用之keepalived

    同haproxy业务引用一样，我们同样在cluster目录下进行。

编写salt文件：

    salt文件涉及到keepalived的安装的引用；每个节点的具体参数如何这里主要通过编写jiaja模版来实现每个节点参数的差异性。通过grains的fqdn来判断不同的主机名，实现不同主机不同参数。
在cluster目录编辑：
[root@salt-master ~]# cat /srv/salt/prod/cluster/haproxy-outside-keepalived.sls
include:
- keepalived.install
keepalived-service:
file.managed:
    - name: /etc/keepalived/keepalived.conf
    - source: salt://cluster/files/haproxy-outside-keepalived.conf
    - user: root
    - group: root
    - mode: 644
    - template: jinja
    {% if grains['fqdn'] == 'centos-test1' %}
    - ROUTEID: haproxy_ha
    - STATEID: MASTER
    - PRIORITYID: 150
    {% elif grains['fqdn'] == 'centos-test2' %}
    - ROUTEID: haproxy_ha
    - STATEID: BACKUP
    - PRIORITYID: 100
    {% endif %}
service.running:
   - name: keepalived
   - enable: True
   - watch:
     - file: keepalived-service

keepalived差异性配置文件：

   在keepalived安装脚本中，我们为了能够启动keepalived服务，我们在两个节点上都下发相同的keepalived配置文件，这次为了实现每个节点上的keepalived去配置不同的参数，需要下发一份差异性配置文件。

[root@salt-master ~]# cat /srv/salt/prod/cluster/files/haproxy-outside-keepalived.conf
! Configuration File for keepalived
global_defs {
notification_email {
    saltstack@example.com
}
notification_email_from keepalived@example.com
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id {{ROUTEID}}
}
vrrp_instance haproxy_ha {
state {{STATEID}}
interface eth0
virtual_router_id 36
priority {{PRIORITYID}}
advert_int 1
authentication {
    auth_type PASS
    auth_pass 1111
}
virtual_ipaddress {
    192.168.91.100
}
}

编写top文件：

将业务引用模块keepalived的haprox-outside-keepalived导入。
[root@salt-master ~]# vi /srv/salt/base/top.sls
base:
'*':
    - init.env_init
prod:
'salt-master.2018.com':
    - cluster.haproxy-outside
    - cluster.haproxy-outside-keepalived
'salt-minion.2018.com':
    - cluster.haproxy-outside
    - cluster.haproxy-outside-keepalived








查看文件结构：
[root@salt-master ~]# tree /srv/salt/
/srv/salt/
├── base
│   ├── init
│   │   ├── audit.sls
│   │   ├── dns.sls
│   │   ├── env_init.sls
│   │   ├── files
│   │   │   └── resolv.conf
│   │   ├── history.sls
│   │   └── sysctl.sls
│   └── top.sls
├── prod
│   ├── cluster
│   │   ├── files
│   │   │   ├── haproxy-outside.cfg
│   │   │   └── haproxy-outside-keepalived.conf
│   │   ├── haproxy-outside-keepalived.sls
│   │   └── haproxy-outside.sls
│   ├── haproxy
│   │   ├── files
│   │   │   ├── haproxy-1.7.11.tar.gz.tar
│   │   │   └── haproxy.init
│   │   └── install.sls
│   ├── keepalived
│   │   ├── files
│   │   │   ├── keepalived-1.4.4.tar.gz
│   │   │   ├── keepalived.conf
│   │   │   ├── keepalived.ini
│   │   │   └── keepalived.sysconfig
│   │   └── install.sls
│   └── pkg
│       └── pkg-init.sls
└── test

12 directories, 20 files








通过salt高级模式执行：
[root@salt-master ~]# salt '*' state.highstat