soltstack中jinja模板的使用

最新推荐文章于 2021-01-18 19:04:11 发布

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本文介绍如何使用SaltStack结合Jinja2模板引擎动态修改Apache配置，包括端口、主机名等参数，通过grains和pillar获取动态信息，实现自动化部署和配置管理。

调用jinja模板修改apache端口号
1.修改配置文件

[root@server1 pillar]# pwd
/srv/pillar
[root@server1 pillar]# cd ../salt/
[root@server1 salt]# ls
apache  _grains  nginx  top.sls
[root@server1 salt]# cd _a
-bash: cd: _a: No such file or directory
[root@server1 salt]# cd _grains/
[root@server1 _grains]# ls
my_grains.py
[root@server1 _grains]# cd ..
[root@server1 salt]# pwd
/srv/salt
[root@server1 salt]# cd apache
[root@server1 apache]# ls
files  install.sls
[root@server1 apache]# vim install.sls 
[root@server1 apache]# cat install.sls 
httpd:
  pkg.installed:
    - pkgs:
      - httpd
      - php
      - httpd-tools
  service.running:
    - name: httpd
    - enable: true

  file.managed:
    - name: /etc/httpd/conf/httpd.conf
    - source: salt://apache/files/httpd.conf
    - user: root
    - group: root
    - mode: 644
    - template: jinja
    - context:
        port: 80
        host: 172.25.32.2

[root@server1 apache]# vim files/httpd.conf
在这里插入图片描述

推送测试

[root@server1 apache]# salt server2 state.sls apache.install
在这里插入图片描述
查看server2的apache配置文件：

2.在文件中定义主机名并注释推送文件中的主机名

[root@server1 apache]# pwd
/srv/salt/apache
[root@server1 apache]# ls
files  install.sls
[root@server1 apache]# vim lib.sls
[root@server1 apache]# cat lib.sls 
{% set host = '172.25.32.2' %}
[root@server1 apache]# vim install.sls 
[root@server1 apache]# cat install.sls 
httpd:
  pkg.installed:
    - pkgs:
      - httpd
      - php
      - httpd-tools
  service.running:
    - name: httpd
    - enable: true

  file.managed:
    - name: /etc/httpd/conf/httpd.conf
    - source: salt://apache/files/httpd.conf
    - user: root
    - group: root
    - mode: 644
    - template: jinja
    - context:
        port: 80
#        host: 172.25.32.2

[root@server1 apache]# vim files/httpd.conf
在这里插入图片描述

推送
[root@server1 apache]# salt server2 state.sls apache.install

3.jinja结合grains使用

[root@server1 apache]# vim install.sls 
[root@server1 apache]# cat install.sls 
httpd:
  pkg.installed:
    - pkgs:
      - httpd
      - php
      - httpd-tools
  service.running:
    - name: httpd
    - enable: true

  file.managed:
    - name: /etc/httpd/conf/httpd.conf
    - source: salt://apache/files/httpd.conf
    - user: root
    - group: root
    - mode: 644
    - template: jinja
    - context:
        port: 80
        host: {{ grains['ipv4'][1] }}

[root@server1 apache]# vim files/httpd.conf

在这里插入图片描述

推送

在这里插入图片描述

4.jinja和pillar的使用

[root@server1 apache]# vim install.sls 
[root@server1 apache]# cat install.sls 
httpd:
  pkg.installed:
    - pkgs:
      - httpd
      - php
      - httpd-tools
  service.running:
    - name: httpd
    - enable: true

  file.managed:
    - name: /etc/httpd/conf/httpd.conf
    - source: salt://apache/files/httpd.conf
    - user: root
    - group: root
    - mode: 644
    - template: jinja
    - context:
      host: {{ pillar['ip'] }}
      port: {{ pillar['port'] }}

[root@server1 apache]# vim files/httpd.conf
删除之前注释的第一行引入的变量，我虽然注释了，但推送一直报错，显示第一行有错，删除后可以正常推送
在这里插入图片描述

[root@server1 apache]# vim /srv/pillar/web/vars.sls 
[root@server1 apache]# cat /srv/pillar/web/vars.sls 
{% if grains['fqdn'] == 'server2' %} 
webserver: httpd 
state: master
ip: 172.25.32.2
port: 80 
{% elif grains['fqdn'] == 'server3' %} 
webserver: nginx 
state: backup 
ip: 172.25.32.3
port: 80
{% endif %}

[root@server1 apache]# cat /srv/pillar/top.sls 
base:
  '*':
    - web.vars

在这里插入图片描述