Jenkins 添加node节点

安装SSH插件

Jenkins- 插件管理- 可选插件- 搜索SSH Agent

配置启用SSH Server

Jenkins- 系统管理 - 全局安全配置，把 SSH Server 设置为启用(默认是禁用)

新增节点

第一种方式（SSH密钥连接）：

1.Jenkins主机生成SSH密钥

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[root@k8s-master ~]# ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
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:oI7S4uwjskL1wGBt04Xq3F2huICMKSZ8jBTfwiROlNk root@971e942b7a70
The key's randomart image is:
+---[RSA 3072]----+
|.=*.. o.         |
|o*=E.o   .       |
|*oB+o.o . .      |
|=* O.o o .       |
|+ = * o S        |
| o = + .         |
|+ o .            |
|*+               |
|*=.              |
+----[SHA256]-----+

2.发送Jenkins主机公钥至要远程主机上

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[root@k8s-master ~]# ssh-copy-id 192.168.1.20

3.测试Jenkins主机免密连接远程主机

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[root@k8s-master ~]# ssh root@192.168.1.20
Last login: Fri Mar  4 10:44:53 2022 from k8s-master
[root@k8s-node2 ~]#

4.添加Jenkins主机SSH私钥key为凭据

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[root@k8s-master ~]# cat /root/.ssh/id_rsa
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

5.添加从节点

添加节点页面解释：

名称：自定义一个节点名称
执行器数量：可以同时执行的job线程数，随便写个数字
远程工作目：宿主机上Workspace目录
标签：自定义，方便后期识别
用法：尽可能的使用这个节点
启动方式：Launch agent agents via SSH
主机：输入要远程的宿主机IP地址
Credentials：将Jenkins本机生成的SSH密钥的公钥发送至要远程的宿主机上，并且添加Jenkins主机的私钥key为凭据进行远程连接
Host Key Verification Strategy：这项选择Known hosts file Verification Strategy

第二种方式：（ROOT账密连接）

1.添加远程主机的ROOT账号密码为凭据

2.添加从节点

添加节点页面解释：

名称：自定义一个节点名称
执行器数量：可以同时执行的job线程数，随便写个数字
远程工作目：宿主机上Workspace目录
标签：自定义，方便后期识别
用法：尽可能的使用这个节点
启动方式：Launch agent agents via SSH
主机：输入要远程的宿主机IP地址
Credentials：添加要远程的宿主机的ROOT账号和密码的凭据
Host Key Verification Strategy：这项选择Non verifying Verifcation Stragegy