ansible部署(pip安装)

centos7 pip安装 ansible

首先ansible基于python2.X 环境
默认centos都已经安装好了python2环境

安装可选性

ansible可以通过源码，yum，pip等方式安装
本文采用pip安装方式

centos默认没有安装pip，这里我们要安装pip

参考文献:传送门

1 curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
2 
3 python get-pip.py
4 
5 [root@localhost ~]# pip -V
6 pip 19.0.2 from /usr/lib/python2.7/site-packages/pip (python 2.7)

安装基础环境

yum install gcc glibc-devel zlib-devel rpm-build openssl-deve -y  
yum install -y python-devel

安装ansible

[root@localhost ~]# pip install ansible

[root@localhost ~]# ansible --version
ansible 2.7.7
  config file = None
  configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python2.7/site-packages/ansible
  executable location = /usr/bin/ansible
  python version = 2.7.5 (default, Oct 30 2018, 23:45:53) [GCC 4.8.5 20150623 (Red Hat 4.8.5-36)]

pip安装是没有config file文件的 我们可以将官网的默认文件上传到服务器
官方文档:传送门
mkdir /etc/ansible
touch /ect/ansible.cfg

创建后ansible会自动搜索,无需操作

[root@localhost ~]# ansible --version
ansible 2.7.7
  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/python2.7/site-packages/ansible
  executable location = /usr/bin/ansible
  python version = 2.7.5 (default, Oct 30 2018, 23:45:53) [GCC 4.8.5 20150623 (Red Hat 4.8.5-36)]

到这里pip安装ansible就算完成了,接下来来实现一些具体的操作

ansible操作

主机说明
控制主机:10.0.15.59   用于控制其它机器的主机 
管理主机:10.0.15.60      被控制的主机
管理主机:10.0.15.66      被控制的主机

A.在控制主机创建秘钥
    ssh-keygen -t rsa
    在root/.ssh目录下存在两个文件
    id_rsa是私钥(不能外泄），id_rsa.pub这个是公钥
B.将控制主机的公钥远程传输到管理主机
    ssh-copy-id -i ~/.ssh/id_rsa.pub 10.0.15.60
    ssh-copy-id -i ~/.ssh/id_rsa.pub 10.0.15.66
    输入密码后查看管理主机的.ssh目录下是否出现authorized_keys
C.测试免密是否成功
    ssh [email protected]
    ssh [email protected]

配置免密登录

配置管理主机

vim /etc/ansible/hosts
10.0.15.60
10.0.15.66

测试

[root@localhost ~]# ansible all -m ping
10.0.15.66 | SUCCESS => {
    "changed": false, 
    "ping": "pong"
}
10.0.15.60 | SUCCESS => {
    "changed": false, 
    "ping": "pong"
}

磁盘检测
[root@localhost ~]# ansible all -m shell -a "df -hP|awk 'NR>1 && int(\$5) '"
10.0.15.60 | CHANGED | rc=0 >>
/dev/mapper/centos-root  9.8G  5.0G  4.9G   51% /
tmpfs                    488M  7.7M  480M    2% /run
/dev/mapper/centos-home  8.1G  2.6G  5.5G   32% /home
/dev/sda1                197M  120M   77M   61% /boot

10.0.15.66 | CHANGED | rc=0 >>
/dev/mapper/centos-root   17G  1.1G   16G    7% /
tmpfs                    488M  7.7M  480M    2% /run
/dev/sda1               1014M  130M  885M   13% /boot