saltstack自动化部署---jinja模块（变量使用）

一：jinja模版

利用httpd自动化部署来使用变量


以下的都是在httpd服务的service.sls文件中进行的添加变量的操作

(变量设置端口)
1：添加上jinja模版
[root@srever4 httpd]# vim service.sls

include:
  - httpd.install
   
/etc/httpd/conf/httpd.conf:
  file.managed:
    - source: salt://httpd/files/httpd.conf
    - template: jinja    ###添加的jinja模版
   port: 8080         ##指定端口为8080

httpd-service:
  service.running:
    - name: httpd
    - enable: False
    - reload: True
      watch:
        - file: /etc/httpd/conf/httpd.conf
 

2：设置端口变量
[root@srever4 httpd]# vim files/httpd.conf 
Listen {{ port }}

3：master上进行推送
[root@srever4 httpd]# salt server5 state.sls httpd.service

4：minion端查看端口，发现为定义的8080端口
tcp6       0      0 :::8080                 :::*                    LISTEN      2473/httpd  



（变量设置主机）

[root@srever4 httpd]# vim service.sls 
include:
  - httpd.install
   
/etc/httpd/conf/httpd.conf:
  file.managed:
    - source: salt://httpd/files/httpd.conf
    - template: jinja
      port: 8080
      host: 172.25.60.5   ##添加主机名

httpd-service:
  service.running:
    - name: httpd
    - enable: False
    - reload: True
      watch:
        - file: /etc/httpd/conf/httpd.conf

2：设主机名变量
[root@srever4 httpd]# vim files/httpd.conf 
Listen  {{ host }}:{{ port }}

3：master上进行推送
[root@srever4 httpd]# salt server5 state.sls httpd.service

4：minion进行查看，发现ip已经取出来了
tcp        0      0 172.25.60.5:8080        0.0.0.0:*               LISTEN      3173/httpd  

  

  (3)使用grains加变量获取主机名
1：使用granis获取主机名
[root@srever4 httpd]# salt server5 grains.item ipv4
server5:
    ----------
    ipv4:
        - 127.0.0.1
        - 172.25.60.5


2：编辑.sls文件
[root@srever4 httpd]# vim service.sls 
include:
  - httpd.install
   
/etc/httpd/conf/httpd.conf:
  file.managed:
    - source: salt://httpd/files/httpd.conf
    - template: jinja
      port: 8080
      host: {{ grains['ipv4'][-1]}}    

httpd-service:
  service.running:
    - name: httpd
    - enable: False
    - reload: True
      watch:
        - file: /etc/httpd/conf/httpd.conf


3：master端进行推送
[root@srever4 httpd]# salt server5 state.sls httpd.service

4：minion端进行查看  将主机ip成功的取出来了
tcp        0      0 172.25.60.5:8080        0.0.0.0:*               LISTEN      3173/httpd    

5：minion端的httpd服务配置文件中，监听的端口也被修改
[root@server5 ~]# vim /etc/httpd/conf/httpd.conf 
Listen  172.25.60.5:8080

   (4)使用pillar结合变量来获取主机ip

1:修改pillar目录下web.sls文件
[root@srever4 pillar]# vim web.sls  
{% if grains['fqdn'] == 'server5' %}
webserver: httpd
IP: 172.25.60.5 
{% elif grains['fqdn'] == 'server6' %}
webserver: nginx
IP: 172.25.60.6
{% endif %}


2:[root@srever4 httpd]# vim service.sls 
include:
  - httpd.install
   
/etc/httpd/conf/httpd.conf:
  file.managed:
    - source: salt://httpd/files/httpd.conf
    - template: jinja
      port: 8080
      host: {{ pillar['IP'] }}   ##使用pillar

httpd-service:
  service.running:
    - name: httpd
    - enable: False
    - reload: True
      watch:
        - file: /etc/httpd/conf/httpd.conf


3：推送
[root@srever4 httpd]# salt server5 state.sls httpd.service
该方法也可以


=======================================================================================
使用files/httpd.conf httpd服务的模版实现使用变量获取ip地址

方法1：

1：建立lib.sls文件
[root@srever4 httpd]# vim lib.sls
{% set host = '172.25.60.5' %}

2：修改httpd服务模版
[root@srever4 httpd]# vim files/httpd.conf 
{% from 'httpd/lib.sls' import host %}


3：修改httpd服务service.sls文件
include:
  - httpd.install
   
/etc/httpd/conf/httpd.conf:
  file.managed:
    - source: salt://httpd/files/httpd.conf
    - template: jinja
      port: 8080
      host: 127.0.0.1    ##端口指定为本机

httpd-service:
  service.running:
    - name: httpd
    - enable: False
    - reload: True
      watch:
        - file: /etc/httpd/conf/httpd.conf




4：master上进行推送
[root@srever4 httpd]# salt server5 state.sls httpd.service

5：minion查看端口情况
tcp        0      0 172.25.60.5:8080        0.0.0.0:*               LISTEN      3173/httpd   
主机ip获取成功

方法2：

1：编辑模版
[root@srever4 httpd]# vim files/httpd.conf
删除之前的加的那句话
Listen  {{ pillar['IP'] }}:{{ port }}   ##添加

2：编辑service.sls文件
[root@srever4 httpd]# vim service.sls
 include:
  - httpd.install
   
/etc/httpd/conf/httpd.conf:
  file.managed:
    - source: salt://httpd/files/httpd.conf
    - template: jinja
      port: 80    ##知道端口为80

httpd-service:
  service.running:
    - name: httpd
    - enable: False
    - reload: True
      watch:
        - file: /etc/httpd/conf/httpd.conf

3：master端进行推送
[root@srever4 httpd]# salt server5 state.sls httpd.service

4：minion端查看端口状态
tcp        0      0 172.25.60.5:80          0.0.0.0:*               LISTEN      3173/httpd      
 


==================================================================================================

使用变量来替换自动化部署nginx服务的版本号
1：修改文件
[root@srever4 nginx]# vim install.sls 
{% set nginx_ver = '1.15.8' %}

nginx-install:
  pkg.installed:
    - pkgs:
      - pcre-devel
      - zlib-devel
      - gcc
      - make

  file.managed:
    - name: /mnt/nginx-{{ nginx_ver }}.tar.gz
    - source: salt://nginx/files/nginx-{{ nginx_ver }}.tar.gz

  cmd.run:
    - name: cd /mnt && tar zxf nginx-{{ nginx_ver }}.tar.gz && cd nginx-{{ nginx_ver }} && sed -i 's/CFLAGS="$CFLAGS -g"/#CFLAGS="$CFLAGS -g"/g' auto/cc/gcc && ./configure --prefix=/usr/local/nginx &> /dev/null && make &> /dev/null && make install &> /dev/null && cd .. && rm -rf nginx-{{ nginx_ver }}
    - creates: /usr/local/nginx
2:推送
[root@srever4 nginx]# salt server6 state.sls nginx.service