ansible三节点部署k8s

Posted 2021-01-25 boshen-hzb

一、部署环境

• VMware Workstation 10
• centos7

二、主机配置

主机名	ip	cpu	ram
master	192.168.137.10	1	2G
node1	192.168.137.11	1	2G
node2	192.168.137.12	1	2G

 

 

 

 

 

1、每台主机在 /etc/hosts 添加以下内容：

2、对三台主机进行免密设置：

1）、CentOS7默认没有启动ssh无密登录，去掉/etc/ssh/sshd_config其中1行的注释，每台服务器都要设置

#PubkeyAuthentication yes

 然后重启ssh服务

systemctl restart sshd

 2）、在master机器的/root执行：ssh-keygen -t rsa命令，一直按回车。三台机器都要执行。

[[email protected] ~]# ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): 
Created directory ‘/root/.ssh‘.
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:
SHA256:aMUO8b/EkylqTMb9+71ePnQv0CWQohsaMeAbMH+t87M [email protected]
The key‘s randomart image is:
+---[RSA 2048]----+
|  o ...      .   |
|   =  o=  . o    |
|    + oo=. . .   |
|     =.Boo o  . .|
|    . OoSoB  . o |
|     =.+.+ o. ...|
|      + o o  .. +|
|     .   o . ..+.|
|        E ....+oo|
+----[SHA256]-----+

 3）、在master上合并公钥到authorized_keys文件

[[email protected] ~]# cd /root/.ssh/
[[email protected] .ssh]# cat id_rsa.pub>> authorized_keys

 4）、将master的authorized_keys复制到node1和node2节点

scp /root/.ssh/authorized_keys [email protected]:/root/.ssh/
scp /root/.ssh/authorized_keys [email protected]:/root/.ssh/

  

三、部署k8s