關於jenkins配合ansible報錯Failed to connect to the host via ssh: Host key verification failed

報錯內容:Failed to connect to the host via ssh: Host key verification failed.

你好! 這是你第一次報錯 Failed to connect to the host via ssh: Host key verification failed. 所遇到的問題 那麼不要驚慌,教你解決

問題1:由於設置而遠程ssh祕鑰是root用戶設置的,對於jenkins用戶無效

tail -n2 /etc/passwd
chrony:x:998:996::/var/lib/chrony:/sbin/nologin
jenkins:x:997:995:Jenkins Automation Server:/var/lib/jenkins:/bin/false
可以看到,jenkins天生登錄的都是一個錯誤shell  /bin/false
那想讓jenkins正確登陸 就要對他進行修改 
jenkins:x:997:995:Jenkins Automation Server:/var/lib/jenkins:/bin/bash
把jenkins的登陸選項設置成/bin/bash

然後進行生成SSH祕鑰連接

su jenkins # 先切換到jenkins用戶
ssh-keygen   #然後生成祕鑰
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: 
Passphrases do not match.  Try again.
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:QFlJhNqeuiZPwPnkHl6LblvbY2TVBe8WCtCbr+IHNyE [email protected]
The key's randomart image is:
+---[RSA 2048]----+
|      .*=o  ..   |
|     .o ...  ..  |
|     o.   .+ .o  |
| . .. ..E =..o . |
|  + .. .So o. o  |
|   =  o + o ..   |
|    =.oo o o     |
|  .++= ++ o      |
|   *Ooooo+       |
+----[SHA256]-----+
ssh-copy-id -i /root/.ssh/id_rsa.pub  你要複製的遠程主機

第二種方法

直接修改jenkins用戶

vim /etc/sysconfig/jenkins
JENKINS_USER="root" 把此選項原來的jenkins用戶修改成root用戶
直接使用root用戶運行啓動jenkins 相當於給了最大權限 
雖然不會出現什麼問題 但是還是建議 程序使用程序用戶跑
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