一、系统环境和安装软件版本
1），系统安装
[root@centos6 ~]# cat /etc/issue
CentOS release 6.5 (Final)
[root@centos6 ~]# uname -r
2.6.32-431.el6.x86_64
2）4台主机Ansible（192.168.0.22）另外3台主机IP分别是（192.168.0.24，192.168.0.156和192.168.0.157）
3）安装YUM源
[root@centos6 ~]# rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm
[root@centos6 ~]# yum install ansible -y
[root@centos6 ~]# ansible --version
ansible 2.4.2.0
config file = /etc/ansible/ansible.cfg
configured module search path = [u‘/root/.ansible/plugins/modules‘, u‘/usr/share/ansible/plugins/modules‘]
ansible python module location = /usr/lib/python2.6/site-packages/ansible
executable location = /usr/bin/ansible
python version = 2.6.6 (r266:84292, Aug 18 2016, 15:13:37) [GCC 4.4.7 20120313 (Red Hat 4.4.7-17)]
二、在Ansible主机上配置
1）在推送主机上做ssh秘钥
[root@Ansible .ssh]# ssh-keygen -t rsa
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:
a3:08:ab:02:bf:7b:12:7d:d9:8f:9c:a9:67:38:53:a1 root@Ansible.localdomain
The key‘s randomart image is:
+--[ RSA 2048]----+
|
|
|
| . |
| .. +S. |
| . .o..E.o. |
| .......+ = |
| ..o . + B . |
| o o= .* |
+-----------------+
2）查看生成的秘钥。
[root@Ansible .ssh]# ls -a
. .. id_rsa id_rsa.pub
3）在Ansible上配置hosts
[root@Ansible ansible]#vim hosts
在内容最后加上如下内容：
[test]
192.168.0.24 ansible_user=root ansible_ssh_pass="hwg123"
192.168.0.156 ansible_user=root ansible_ssh_pass="hwg123"
192.168.0.157 ansible_user=root ansible_ssh_pass="hwg123"
4）接着创建push.ssh.ymal脚本
[root@Ansible ansible]# cat push.ssh.ymal
#Using alternate directory locations:
- hosts: test
user: root
tasks:
- name: ssh-copy
authorized_key:
user=root
key="{{ lookup(‘file‘ ,‘/root/.ssh/id_rsa.pub‘) }}"
tags:
- sshkey
5）需要修改ansible.cfg的#host_key_checking= False取消注释
[root@Ansible ansible]# vim ansible.cfg
host_key_checking = False
三、最后运行push.ssh.ymal
[root@Ansible ansible]# ansible-playbook push.ssh.ymal
PLAY [test] ****
TASK [Gathering Facts] *****
ok: [192.168.0.24]
ok: [192.168.0.157]
ok: [192.168.0.156]
TASK [ssh-copy] ****
changed: [192.168.0.157]
changed: [192.168.0.156]
changed: [192.168.0.24]
PLAY RECAP *****
192.168.0.156 : ok=2 changed=1 unreachable=0 failed=0
192.168.0.157 : ok=2 changed=1 unreachable=0 failed=0
192.168.0.24 : ok=2 changed=1 unreachable=0 failed=0
好了，Ansible主机端使用ssh root@192.168.0.24 看看需要密码不，不需要证明配置正确。
Ansible推送ssh秘钥
原文：http://blog.51cto.com/hwg1227/2093803
