Ansible命令模块（get_url 模块 service模块 systemd模块 )

1. get_url 模块

1）帮助语法

[root@m01 ~]# ansible-doc get_url
EXAMPLES:
- name: Download foo.conf
  get_url:
    url: http://example.com/path/file.conf
    dest: /etc/foo.conf
    mode: '0440'
    checksum: 
        sha256:http://example.com/path/sha256sum.txt
        
url:                 #下载文件的地址
dest:                 #下载保存的路径
mode:                #下载之后的权限
checksum:             #下载时进行验证
    sha256:http://example.com/path/sha256sum.txt
    md5

2）模块实例

#下载包
[root@m01 ~]# ansible 'web_group' -m get_url -a 'url=https://mirrors.aliyun.com/zabbix/zabbix/4.0/rhel/7/x86_64/zabbix-release-4.0-2.el7.noarch.rpm dest=/tmp/'

#下载包并授权
[root@m01 ~]# ansible 'web_group' -m get_url -a 'url=https://mirrors.aliyun.com/zabbix/zabbix/4.0/rhel/7/x86_64/zabbix-release-4.0-2.el7.noarch.rpm dest=/tmp/ mode=777'

#下载包时验证
[root@linux /code]# md5sum index.html 
ba1f2511fc30423bdbb183fe33f3dd0f  index.html

[root@m01 ~]# ansible 'web03' -m get_url -a 'url=http://10.0.0.7/index.html dest=/tmp mode=777 checksum=md5:ba1f2511fc30423bdbb183fe33f3dd0f'

2.service模块

1）帮助语法

[root@m01 ~]# ansible-doc service
EXAMPLES:
- name: Start service httpd, if not started
  service:
    name: httpd
    state: started
    enabled: yes
    
name: httpd            #服务的名字
state:
    started            #启动服务
    stopped            #停止服务
    restarted        #重启服务
    reloaded        #重载服务
enabled:            #开机自启
    yes
    no

2）service实例

#1.停止nginx服务
[root@m01 ~]# ansible web03 -m service -a 'name=nginx state=stopped'

#2.启动httpd服务，并加入开机自启
[root@m01 ~]# ansible web03 -m service -a 'name=httpd state=started enabled=yes'

3.systemd模块

1）帮助语法

[root@m01 ~]# ansible-doc systemd
EXAMPLES:
- name: Start service httpd, if not started
  systemd:
    name: httpd
    state: started
    enabled: yes
    daemon_reload: yes
    
name: httpd            #服务的名字
state:
    started            #启动服务
    stopped            #停止服务
    restarted        #重启服务
    reloaded        #重载服务
enabled:            #开机自启
    yes
    no
daemon_reload：        #后台启动

2）systemd实例

#1.停止nginx服务
[root@m01 ~]# ansible web03 -m systemd -a 'name=nginx state=stopped'

#2.启动httpd服务，并加入开机自启
[root@m01 ~]# ansible web03 -m systemd -a 'name=httpd state=started enabled=yes'