ansible环境搭建

一、实现从管理机m01到其他机器的密钥认证

[root@m01 ~]# ssh-keygen 
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
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:rKu2og75VVHnsOPn/Lh9YP/2Yi26PwD9wAzMihol4e8 root@m01
The key's randomart image is:
+---[RSA 2048]----+
|    ..  oo.      |
|   .. .. =+      |
|    .o..o..=     |
|    ...+... =    |
|     oo S .. o   |
| .  .o . +  + .  |
|o   . E   o. + . |
|.....  .   +  B o|
|oo.ooo.   o.=*.*+|
+----[SHA256]-----+
[root@m01 ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub  -p 22 root@172.16.1.7
[root@m01 ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub root@172.16.1.7
[root@m01 ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub root@172.16.1.61

二、安装ansible

[root@m01 ~]# yum install ansible -y

三、配置ansible的主机列表

[root@m01 ~]# vim /etc/ansible/hosts
[server]
172.16.1.61
[client]
172.16.1.7

四、验证ansible

ansible是通过ssh端口探测通信
[root@m01 /etc/ansible]# ansible server -m ping
10.0.0.61 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    }, 
    "changed": false, 
    "ping": "pong"
}
[root@m01 /etc/ansible]# ansible client -m ping
10.0.0.7 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    }, 
    "changed": false, 
    "ping": "pong"
}
[root@m01 /etc/ansible]# ansible server -m command -a "df -h" 
10.0.0.61 | CHANGED | rc=0 >>
文件系统                           容量  已用  可用 已用% 挂载点
/dev/mapper/centos_oldboyedu-root   17G  3.2G   14G   19% /
devtmpfs                           979M     0  979M    0% /dev
tmpfs                              991M  128K  991M    1% /dev/shm
tmpfs                              991M  9.7M  981M    1% /run
tmpfs                              991M     0  991M    0% /sys/fs/cgroup
/dev/sda1                         1014M  194M  821M   20% /boot
tmpfs                              199M     0  199M    0% /run/user/0