day1

环境搭建

配置epel源

[root@localhost yum.repos.d]# curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
##yum换源
[root@localhost yum.repos.d]# yum install -y wget
​
[root@localhost yum.repos.d]# wget http://mirrors.aliyun.com/repo/Centos-7.repo
[root@localhost yum.repos.d]# yum clean all
[root@localhost yum.repos.d]# yum makecache
​
​
##安装epel源
[root@localhost yum.repos.d]# yum list | grep epel-release
​
[root@localhost yum.repos.d]# yum install -y epel-release
### 使用阿里云的epel源
[root@localhost yum.repos.d]# wget -O /etc/yum.repos.d/epel-7.repo http://mirrors.aliyun.com/repo/epel-7.repo
​

安装ansible

[root@localhost ~]# yum install ansible

基础配置

ssh免密登录

root

两台主机都建立user1用户，master和nginx1上

[root@localhost ~]# useradd user1
[root@localhost ~]# passwd user1

创建公钥私钥对

[root@localhost ~]# ssh-keygen -t rsa

把公钥上传到nginx1

[root@localhost .ssh]# ssh-copy-id -i id_rsa.pub 192.168.17.135

user1

[user1@localhost ~]$ ssh-keygen -t rsa
[user1@localhost .ssh]$ ssh-copy-id -i id_rsa.pub 192.168.17.135

修改ansible配置文件

[root@localhost ~]# vi /etc/ansible/ansible.cfg

修改清单文件

[root@localhost ~]# vi /etc/ansible/hosts

root用户下验证ansible（ping）

[root@localhost ~]# ansible all -m ping

可以看到本机是无法ping通的

将本机（master）生成的rsa公钥复制到本机，实现ssh免密登录

[root@localhost ~]# cd .ssh
[root@localhost .ssh]# ssh-copy-id -i id_rsa.pub 192.168.17.134

配置完成再次ping可以看到已经完成

user1用户下验证ansible（ping）

master节点

配置本机（master）ssh免密登录

[user1@localhost ~]$ cd .ssh
[user1@localhost .ssh]$ ssh-copy-id -i id_rsa.pub 192.168.17.134
[user1@localhost root]$ ansible all -m ping