# Ansible安装配置
## 1，ansible安装
```
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo
#m01
yum install ansible -y
yum install libselinux-python -y
#backup nfs01
yum install libselinux-python -y
```
## 2，修改配置文件
```
[root@m01 ~]# tree /etc/ansible/
/etc/ansible/
├── ansible.cfg #ansible的配置文件
├── hosts #ansible管理了 哪些服务器 服务器列表
└── roles
1 directory, 2 files
[root@m01 ~]# cat /etc/ansible/hosts
[oldboy]
172.16.1.31
172.16.1.41
```
### 2.1分发密钥
* #0，生成密钥
```
ssh-keygen -t dsa
```
* #1，取消第一次连接的提示
```
sed -i 's/#host_key_checking = False/host_key_checking = False/g' /etc/ansible/ansible.cfg
```
* #2，修改/etc/ansible/hosts文件
```
cat >> /etc/ansible/hosts<<EOF
[oldboy]
10.0.0.22
10.0.0.24
[oldboy:vars]
ansible_ssh_user=root
ansible_ssh_pass=123456
ansible_ssh_port=22
EOF
```
* #3，分发密钥
```
ansible oldboy -m authorized_key -a "user=root key='{{ lookup('file', '/root/.ssh/id_dsa.pub') }}'"
```
## 3，测试ad-hoc
```
#执行命令
ansible oldboy -m command -a "hostname"
#ansible oldboy -m command -a "yum install cowsay -y
#复制文件到oldboy配置的主机的/tmp/目录下 并且更改文件属主，并把权限改为0755
ansible oldboy -m copy -a "src=/etc/hosts dest=/tmp owner=oldboy mode=0755"
#执行命令
ansible oldboy -m command -a "ls -l /tmp/hosts"
#复制文件 如果目标主机有文件，则备份
ansible oldboy -m copy -a "src=/etc/hosts dest=/tmp backup=yes"
#查看文档
ansible-doc -l|wc -l
ansible-doc -s copy
#复制文件
ansible oldboy -m copy -a "src=/server/scripts/yum-htop.sh dest=/server/scripts/ "
#执行脚本
ansible oldboy -m shell -a "/bin/sh /server/scripts/yum-htop.sh"
ansible oldboy -m script -a "/server/scripts/yum.sh"
ansible oldboy -m cron -a "name='restart network' minute=00 hour=00 job=' /etc/init.d/network restart >/dev/null 2>&1'"
ansible oldboy -a "crontab -l"
```
## 4，测试playbook
```
mkdir -p /server/playbook
vim ifconfig.yml
- hosts: oldboy
tasks:
- command: ifconfig
- shell: ifconfig >/tmp/ip.log
ansible-playbook -C ifconfig.yml
ansible-playbook ifconfig.yml
vim print-ip.yml
- hosts: all
tasks:
- name: get ip address
shell: ifconfig eth0 |awk -F "[ :]+" 'NR==2{print $4}' >>/tmp/ip.log
ansible-playbook -C print-ip.yml
ansible-playbook print-ip.yml
ansible all -a "tail -1 /tmp/ip.log
ansible oldboy -m cron -a 'name="restart network" minute=00 hour=00 job="/etc/init.d/network restart >/dev/null 2>&1" state=present'
#添加定时任务
cat add-cron.yml
- hosts: oldboy
tasks:
- name: add restart network cron
cron: name="restart network" minute=00 hour=00 job="/etc/init.d/network restart >/dev/null 2>&1" state=present
ansible oldboy -a "crontab -l"
ansible-playbook -C add-cron.yml
ansible-playbook add-cron.yml
- hosts: oldboy
tasks:
- name: add restart network cron
cron:
name: restart network
minute: 00
hour: 00
job: /etc/init.d/network restart >/dev/null 2>&1
state: present
```
## 注意：
centos6.8 使用ansible-doc -l报错
解决方法：
```
sed -i 's@#deprecation_warnings = True@deprecation_warnings = False@g' /etc/ansible/ansible.cfg
mv /usr/lib/python2.6/site-packages/ansible/modules/extras/cloud/misc/rhevm.py /tmp/
```
