Ansible Common Modules Detailed

Ansible can be automatically managed using the command line, and Ansible's command-line management tools are supported by a series of modules and parameters, and we can view the module's help information through the Ansible-doc tool. This post will detail the functions and operations of the Ansible module.

ansible Command parameters:

• -V: Output details (multiple V can be used)
• -I PATH: Specify the Hosts file location
• -F NUM: Specifies the number of open processes (default is 5)
• -M Moule: Specify the name of the module (command by default)
• -M Directory: Specify module directory to load module, default is/usr/share/ansible
• -a,module_args: Specifying parameters for Module modules
• -K: Prompts for SSH password instead of using SSH-based key authentication
• -U USERNAME: Specifies the execution user of the Mobile ansible module: 1, Command Module

  Command: ansible [host] [-M module] [-a args]
  Ansible-doc-l #列出所有安装模块 (q exit)
  Ansible-doc-s Yum #列出yum模块描述信息和操作动作
  Ansible all-m command-a ' Date ' #查询date
  Ansible all-a ' ls/' #如果不加-m module, default Run command Module

2. Cron Module

两种状态（state）：present表示添加        absent 表示移除ansible-doc -s cron                      #查看cron模块信息ansible all -m cron -a ‘minute="*/1" job="/usr/bin/echo heihei >> /opt/test.txt" name="test cron"‘          #-a： 指定添加参数     */1：每分钟执行      job：执行内容

ansible mysql -a ‘crontab -l‘        #查看crontab信息ansible mysql -m cron -a ‘name="test cron" state=absent‘

3. User Module

Ansible-doc-s User
Ansible all-m user-a ' name=test ' #创建用户

After the operation succeeds, view the results on the managed server:

Ansible mysql-m command-a ' tail/etc/passwd '
Ansible mysql-m user-a ' name=test01 state=absent ' #删除用户

After the operation succeeds, view the results on the MySQL server:

4. Group Module

Ansible mysql-m group-a ' name=mysql gid=330 system=yes '
Ansible mysql-a ' Tail/etc/group '

Ansible mysql-m user-a ' name=test02 uid=330 group=mysql system=yes '
#新建用户test02; set uid=306; add test02 to the MySQL group
Ansible mysql-a ' id test02 '

5. Copy Module

Ansible-doc-s Copy
Ansible all-m copy-a ' src=/etc/fstab dest=/opt/fstab.bk owner=root mode=644 '
#src: Original file dest: Target file after copy owner: Master mode: Permissions
Ansible mysql-a ' ls-l/opt ' #在控制主机上查看

After the operation succeeds, view the results in the appropriate directory on the managed server:

Ansible mysql-m copy-a ' content= "Hello world!" Dest=/opt/hello.txt '
Write "Hello world!" #复制文件hello. txt ”
Ansible mysql-a ' cat/opt/test.txt ' #在控制主机上查看

After the operation succeeds, view the results in the appropriate directory on the MySQL server:

6. File Module

Ansible-doc-s file
Touch/opt/file.txt
Ansible mysql-m file-a ' path=/opt/file.txt owner=test02 group=mysql mode=666 '
#对test文件设置属主, group, permissions

After the operation is complete, check the results under the MySQL server:

Ansible mysql-m file-a ' src=/opt/test.txt path=/opt/test.txt.link state=link '
#将src指的文件链接到path指的路径下

After the operation is complete, check the results in the appropriate directory of the MySQL server:

Of course, you can also create empty files, which are relatively simple to operate
Ansible mysql-m file-a ' path=/opt/abc.txt state=touch ' #创建空文件
Ansible mysql-m file-a ' path=/opt/abc.txt state=absent ' #删除

7. Ping module

Test whether managed hosts are online
Ansible all-m Ping

8. Yum Module

Ansible-doc-s Yum
Ansible webserver-m yum-a ' name=httpd ' #安装httpd
Ansible webserver-m yum-a ' name=httpd state=absent ' #移除httpd

9. Shell Module

Ansible-doc-s Shell
Ansible webserver-m user-a ' Name=jerry '
Ansible webserver-m shell-a ' echo abc123 | passwd--stdin Jerry '
#创建用户, no interaction setup password

10. Script Module

In your own server setup script, other servers go to execute
Ansible-doc-s Script
#!/bin/bash
echo "This is Test Script" >/opt/script.txt
chmod 666/opt/script.txt #设置权限
chmod +x test.sh #为脚本添加执行权限
Ansible all-m script-a ' test.sh '

When the operation is complete, view the execution results on the managed server:

11. Setup Module

Ansible-doc-s Setup
Ansible mysql-m Setup #查看mysql服务器上所有信息

12. Service Module

Ansible-doc-s Service
Ansible webserver-m service-a ' name=httpd enabled=true state=started '
#开启httpd服务; Enabled: Boot from boot
Ansible webserver-m service-a ' name=httpd enabled=true state=stopped ' #关闭httpd服务

Ansible Common Modules Detailed