ansible的安装和部署详细过程，配置清单基本操作

准备三台机器：
server.example.com
node1.example.com
node2.example.com

首先就是克隆3台机器，最好是配置好yum源的，server机器需要有ansible，ssh，另外两台需要有ssh和python

 直接克隆就可以
配置IP，主机名，/etc/hosts

分别手动对三台机器配置ip，使其设置为method

nmcli connection add ipv4.addresses 192.168.38.128 ipv4.gateway 192.168.38.2 ipv4.dns 8.8.8.8 ipv4.method 
nmcli connection add ipv4.addresses 192.168.38.130 ipv4.gateway 192.168.38.2 ipv4.dns 8.8.8.8 ipv4.method 
nmcli connection add ipv4.addresses 192.168.38.132 ipv4.gateway 192.168.38.2 ipv4.dns 8.8.8.8 ipv4.method 

分别对三台机器设置主机名

hostnamectl set-hostname server.example.com
hostnamectl set-hostname node1.example.com
hostnamectl set-hostname node2.example.com

配置主机名和IP地址的映射关系

在三台机器分别输入以下代码

[[email protected] ~]# echo "192.168.38.128 server.example.com" >> /etc/hosts
[[email protected] ~]# echo "192.168.38.130 node2.example.com" >> /etc/hosts
[[email protected] ~]# echo "192.168.38.132 node1.example.com" >> /etc/hosts

然后去配置免密登录

免密登录是让server这个机器免密登录其他机器

首先产生密钥

[[email protected] ~]# ssh-keygen -t rsa

然后将公钥传给其余两台机器

ssh-copy-id [email protected]ample.com

ssh-copy-id [email protected]

此时即可免密登录，测试如下

[[email protected] ~]# ssh [email protected]
Activate the web console with: systemctl enable --now cockpit.socket

This system is not registered to Red Hat Insights. See https://cloud.redhat.com/
To register this system, run: insights-client --register

Last login: Tue Aug  2 16:41:14 2022 from 192.168.38.128
[[email protected] ~]# 
[[email protected] ~]# ssh [email protected]
Activate the web console with: systemctl enable --now cockpit.socket

This system is not registered to Red Hat Insights. See https://cloud.redhat.com/
To register this system, run: insights-client --register

Last login: Tue Aug  2 16:41:14 2022 from 192.168.38.128
[[email protected] ~]# 

配置yum源使用Centos-stream.repo

我们需要将Centos-stream.repo下载到/etc/yum.repos.d/上

首先将原有的Centos-vault-8.5.2111.repo加个后缀此时就不生效

mv Centos-vault-8.5.2111.repo Centos-vault-8.5.2111.repo.bak

然后将windows上的传入linux

C:\Users\陈志行>sftp [email protected]
[email protected]'s password:
Connected to 192.168.38.128.
sftp> put D:\CentOS-Stream.repo /etc/yum.repos.d/
Uploading D:/CentOS-Stream.repo to /etc/yum.repos.d/CentOS-Stream.repo
D:/CentOS-Stream.repo                                                                 100% 1215     1.2MB/s   00:00
sftp>

安装ansible

第一步安装 https://mirrors.tuna.tsinghua.edu.cn/zabbix/zabbix/6.0/rhel/8/x86_64/zabbix-release-6.0-1.el8.noarch.rpm

rpm -ivh https://mirrors.tuna.tsinghua.edu.cn/zabbix/zabbix/6.0/rhel/8/x86_64/zabbix-release-6.0-1.el8.noarch.rpm

第二步安装

https://mirrors.tuna.tsinghua.edu.cn/epel/epel-release-latest-8.noarch.rpm

yum install https://mirrors.tuna.tsinghua.edu.cn/epel/epel-release-latest-8.noarch.rpm

最后一步就是安装ansible

yum install ansible -y

使用ansible --version去验证

配置清单：

[node]
node1.example.com
node2.example.com
使用ansible node -m ping去验证

vim /etc/ansible/hosts

此时已完成即可验证