ansible hosts资产文件

Posted 2021-10-15 青衫解衣

Ansible

/etc/ansible/hosts资产文件

ssh秘钥

各主机直接ssh秘钥复制

[root@master ~]# ssh-keygen -t rsa -P \'\'
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): 
Created directory \'/root/.ssh\'.
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:/HdFpoNofEK4fWZJuWc8H4jkcCM6cCD1UZwOQS6DlCE root@master
The key\'s randomart image is:
+---[RSA 2048]----+
| E ++o.++..      |
|  o.o +..+   .   |
|   . + ++o.+o   o|
|      =..**oo=.+ |
|       oS *oO.B..|
|        .o * o =.|
|          . . . .|
|           . .   |
|                 |
+----[SHA256]-----+

安装ansible

yum install epel-release 

yum install ansible -y


ssh-copy-id -i ~/.ssh/id_rsa.pub root@192.168.101.97

ssh-copy-id -i ~/.ssh/id_rsa.pub root@192.168.101.83

资源清单文件

vim /etc/ansible/hosts
写法1 
[test]
192.168.101.83
192.168.101.97

写法2
ansible_ssh_pass执行用户密码，当前执行ansible为root用户，所以用户默认不写
192.168.101.97 ansible_ssh_pass=redhat


192.168.101.97 ansible_ssh_user=root ansible_ssh_pass=redhat ansible_ssh_port=22

直接定义test资产组的密码变量
[test]
192.168.101.83
192.168.101.97
[test:vars]
ansible_ssh_pass=redhat

[test]
直接写域名

children子项目,web和db都属于test的子项目
[web]
192.168.101.83
[db]
192.168.101.97
[test:children]
web
db

shell模块使用管道符|截取/

[root@master opt]# ansible test -m shell -a \'df -h | grep /$\'
192.168.101.83 | CHANGED | rc=0 >>
/dev/mapper/centos-root   29G  2.4G   27G   9% /
192.168.101.97 | CHANGED | rc=0 >>
/dev/mapper/centos-root   29G  2.4G   27G   9% /

ping模块

[root@master ~]# ansible test -m ping
192.168.101.97 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    }, 
    "changed": false, 
    "ping": "pong"
}
192.168.101.83 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    }, 
    "changed": false, 
    "ping": "pong"
}

raw命令模块

[root@master opt]# ansible test -m raw -a \'df -h\'
192.168.101.83 | CHANGED | rc=0 >>
Filesystem               Size  Used Avail Use% Mounted on
devtmpfs                 908M     0  908M   0% /dev
tmpfs                    919M     0  919M   0% /dev/shm
tmpfs                    919M  8.6M  911M   1% /run
tmpfs                    919M     0  919M   0% /sys/fs/cgroup
/dev/mapper/centos-root   29G  2.4G   27G   9% /
/dev/sda1               1014M  150M  865M  15% /boot
tmpfs                    184M     0  184M   0% /run/user/0
Shared connection to 192.168.101.83 closed.

192.168.101.97 | CHANGED | rc=0 >>
Filesystem               Size  Used Avail Use% Mounted on
devtmpfs                 908M     0  908M   0% /dev
tmpfs                    919M     0  919M   0% /dev/shm
tmpfs                    919M  8.6M  911M   1% /run
tmpfs                    919M     0  919M   0% /sys/fs/cgroup
/dev/mapper/centos-root   29G  2.4G   27G   9% /
/dev/sda1               1014M  150M  865M  15% /boot
tmpfs                    184M     0  184M   0% /run/user/0
Shared connection to 192.168.101.97 closed.