2. SaltStack数据系统

浅浅的花香味﹌ 2021-11-09 21:12 301阅读 0赞

## 1. SaltStack数据系统 ##

Grains （谷物）

Pillar （支柱）

## 2.Grains ##

Grains存放着Salt命令启动时收集的信息，运行时不收集

### 2.1  信息查询 ###

收集资产

网卡，ip，cpu ....

（1）收集系统底层的msg

[root@linux-node1 ~]# salt '*' grains.ls
    [root@linux-node1 ~]# salt '*' grains.items

![1196120-20190729184711472-73944289.png][]

![1196120-20190729184715533-160024228.png][]

![1196120-20190729184721868-330939375.png][]

（2）查询单个

[root@linux-node1 ~]# salt '*' grains.item fqdn
    [root@linux-node1 ~]# salt '*' grains.get fqdn
    [root@linux-node1 ~]# salt '*' grains.get ip4_interfaces

![1196120-20190729184958568-809999526.png][]

### 2.2 匹配minion ###

在所有centos上执行，

所有开机的虚拟机上执行

[root@linux-node1 ~]# salt -G 'os:CentOS' cmd.run 'uptime'
    [root@linux-node1 ~]# salt -G 'init:systemd' cmd.run 'uptime'

### 2.3 top.sls中匹配minion ###

[root@linux-node1 ~]# vim /srv/salt/base/top.sls

![1196120-20190729185453178-1601839002.png][]

![1196120-20190729185518393-1066086699.png][]

### 2.4 配合模板来做判断 ###

在pillar中使用

###  2.5 如何配置？ ###

1.Minion配置文件中的grains （不推荐了）

（1）修改配置文件

vim /etc/minion

![1196120-20190729185629397-694312314.png][]

systemctl restart salt-minion

（2）在所有角色是memcache上执行

![1196120-20190729185728111-1890518780.png][]

（3）grians配置文件

新建 grins

:后面必须有空格

![1196120-20190729201402415-1659918757.png][]

（4）重启服务minion

\[root@host-192-168-23-39 master\]\# systemctl restart salt-minion

\[root@host-192-168-23-39 master\]\# systemctl status salt-minion

（5）执行命令

![1196120-20190729201445467-246071015.png][]

2.自定制grains

\# vim grains文件

[root@linux-node1 ~]# vim /etc/salt/grains
    test-grains: linux-node2
    
    [root@linux-node1 ~]# salt '*' grains.get test-grains
    linux-node2.example.com:
    linux-node1.example.com:

\# 重启或者重新获取grains

\[root@linux-node1 ~\]\# systemctl restart salt-minion

![1196120-20190729201533944-797130679.png][]

\# 执行命令

[root@linux-node1 ~]# salt '*' grains.get test-grains
    linux-node2.example.com:
    linux-node1.example.com:
        linux-node2

## 3.Pillar ##

官方文档：[https://docs.saltstack.com/en/latest/topics/pillar/index.html][https_docs.saltstack.com_en_latest_topics_pillar_index.html]

github中pillar的配置： [https://github.com/saltstack-formulas?utf8=✓&q=&type=&language=][https_github.com_saltstack-formulas_utf8_q_type_language]

### 3.1 Grains与pillar对比 ###

Grains的问题

1：静态数据，要刷新
    2.用户名密码，不太安全

Pillar好处

敏感data，比如配置文件设定密码

处理变量差异性

给minion指定它想要的数据
    　　　安全性比较好，给谁指定谁能看到，其他的看不到
    　　  安全，只有指定的人才能看到key-value
    
    在master端设定
          不用每次重启服务

pillar解析后是个python的字典

直接在salt中 写python的语法

### 3.2 打开默认pillar ###

\# 默认关闭的

[root@linux-node1 ~]# salt '*' grains.get test-grains
    linux-node1.example.com:
        ----------
    linux-node2.example.com:
        ----------

\# 配置master文件

\[root@linux-node1 ~\]\# vim /etc/salt/master

![1196120-20190729201835477-1361530393.png][]

\# 重启master服务

\[root@linux-node1 ~\]\# systemctl restart salt-master

\# 执行命令

![1196120-20190729210847486-1962107209.png][]

### 3.3 配置pillar ###

1.配置master文件,创建目录

\[root@linux-node1 ~\]\# vim /etc/salt/master

![1196120-20190729202303499-795437964.png][]

[root@linux-node1 ~]# mkdir -p /srv/pillar/{
        base,prod}
    [root@linux-node1 ~]# tree /srv/pillar/
    /srv/pillar/
    ├── base
    └── prod
    
    2 directories, 0 files

\[root@linux-node1 ~\]\# systemctl restart salt-master

2. vim apache.sls

[root@linux-node1 ~]# vim /srv/pillar/base/apache.sls
    {
         % if grains['os'] == 'CentOS' %}
    apache: httpd
    {
         % elif grains['os'] == 'Debian'%}
    apache: apache2
    {
         % endif %}

![1196120-20190729211046036-1917969967.png][]

**apache: 空格注意空格**

[root@linux-node1 pillar]# tree
    .
    ├── base
    │   └── apache.sls
    └── prod
    
    2 directories, 1 file

3. 指定哪个minion可以看到

\[root@linux-node1 pillar\]\# vim /srv/pillar/base/top.sls

![1196120-20190729211228849-1164696312.png][]

\[root@linux-node1 pillar\]\# salt '\*' pillar.items

![1196120-20190729211247559-689837326.png][]

### 3.4 pillar在状态文件中如何引用的 ###

[root@linux-node1 base]# vim /srv/salt/base/web/apache.sls

![1196120-20190729203613472-1737598102.png][]

执行命令

![1196120-20190729203654762-140100718.png][]

##  4.总结与展望 ##

### 1. Grains与Pillar对比 ###

![1196120-20190729210206952-1056087496.png][]

![1196120-20190729212425374-527524950.png][]

### 2. 报错：Pillar报错 ###

![1196120-20190729211428183-242455198.png][]

报错信息：**apache: 空格注意空格**

![1196120-20190729211446721-618474857.png][]

### 3.配置中心 ###

https://www.infoq.cn/article/basis-frameworkto-implement-micro-service/

![1196120-20190729210250973-244404479.png][]

转载于:https://www.cnblogs.com/venicid/p/11265816.html

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[https_docs.saltstack.com_en_latest_topics_pillar_index.html]: https://docs.saltstack.com/en/latest/topics/pillar/index.html
[https_github.com_saltstack-formulas_utf8_q_type_language]: https://github.com/saltstack-formulas?utf8=%E2%9C%93&q=&type=&language=
[1196120-20190729201835477-1361530393.png]: /images/20211109/8afc4bdffdee4db081cc6ac965461ee9.png
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[1196120-20190729211446721-618474857.png]: /images/20211109/5e8cc959a8b74b259cb2e55f0fe9ce4f.png
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