Ansible 常用模块详解：firewalld、setup实战

Ansible常用模块

firewalld模块

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-m firewalld 
    管理控制防火墙

指令参数	选项	说明
service	http\udp.....	添加或者删除服务、协议
port		添加或者删除端口号
state	enabled, disabled	开启或者禁止防火墙
zone	public	设置防火墙区域
permanent	yes, no	修改规则是否重启生效-永久，默认no
immediate	yes, no	修改规则是否立即生效-临时，默认no
masquerade	yes, no	启动或禁止防火墙地址伪装

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[root@ansible ~]# ansible webservers -m shell -a 'systemctl start firewalld'
192.168.92.20 | CHANGED | rc=0 >>

[root@ansible ~]# ansible webservers -m firewalld -a 'service=http immediate=yes permanent=yes state=enabled'
192.168.92.20 | CHANGED => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python3"
    },
    "changed": true,
    "msg": "Permanent and Non-Permanent(immediate) operation, Changed service http to enabled"
}
[root@ansible ~]# ansible webservers -m shell -a 'systemctl stop firewalld'
192.168.92.20 | CHANGED | rc=0 >>

[root@ansible ~]#

setup模块

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-m setup 
    主要收集信息 
    通过facts组件实现功能
        用于采集被控端设备信息一个途径

指令参数	选项	说明
filter		采集信息

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[root@ansible ~]# ansible webservers -m setup -a 'filter=ansible_memory_mb'
192.168.92.20 | SUCCESS => {
    "ansible_facts": {
        "ansible_memory_mb": {
            "nocache": {
                "free": 1465,
                "used": 273
            },
            "real": {
                "free": 1238,
                "total": 1738,
                "used": 500
            },
            "swap": {
                "cached": 0,
                "free": 2047,
                "total": 2047,
                "used": 0
            }
        },
        "discovered_interpreter_python": "/usr/bin/python3"
    },
    "changed": false
}
[root@ansible ~]# ansible webservers -m setup -a 'filter=ansible_all_ipv4_addresses'
192.168.92.20 | SUCCESS => {
    "ansible_facts": {
        "ansible_all_ipv4_addresses": [
            "192.168.92.20"
        ],
        "discovered_interpreter_python": "/usr/bin/python3"
    },
    "changed": false
}
[root@ansible ~]# ansible webservers -m setup -a 'filter=nameserver'
192.168.92.20 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python3"
    },
    "changed": false
}
[root@ansible ~]#