Jenkins 通过 ssh 发布显示错误“jenkins.plugins.publish_over.BapPublisherException：无法添加 SSH 密钥。”

Question

为了使用 ssh 将 jenkins 与远程服务器连接，我在 jenkins 中安装了 publish over SSH 插件。但配置后它显示错误 jenkins.plugins.publish_over.BapPublisherException: Failed to add SSH key。消息[无效的私钥：[B@7934add]

最初我在服务器中以 jenkins 用户身份登录为“sudo su jenkins” 在此之后，我输入“ssh-keygen”并给出密码短语值并给出 jenkins 配置中的密钥路径。

我的密码是我在创建 ssh-keygen 时给出的值

我的密码短语/密码与我在创建 ssh-keygen 时给出的值相同。我对这一点不正确

但是当我点击测试配置按钮时我的所有配置都显示“

Failed to connect or change directory

jenkins.plugins.publish_over.BapPublisherException: Failed to add SSH key. Message [invalid privatekey: [B@3085b39b]"

Answer 1

key的路径应该是privatekeyid_rsa的路径。

不是公开的id_rsa.pub（确实是无效的...私钥）

创建 SSH 密钥对已生成：

• /var/lib/jenkins/.ssh/id_rsa（私钥）
• /var/lib/jenkins/.ssh/id_rsa.pub（公钥）

使用old PEM format（不是新的 OpenSSH）

ssh-keygen -t rsa -C "jenkins" -m PEM -P "" -f /var/lib/jenkins/.ssh/id_rsa

要打开 SSH 会话，需要将公钥复制到远程服务器，地址为 /home/ubuntu/.ssh/authorized_keys。
如果你有远程ubuntu用户密码，可以使用ssh-copy-id command，如seen here：

ssh-copy-id -i /var/lib/jenkins/.ssh/id_rsa ubuntu@remoteserverip

然后你可以测试sudo su jenkins与ssh -Tv ubuntu@remoteserverip的连接

Answer 2

MacOS 似乎使用更新的技术来生成密钥。

使用-m PEM 生成密钥为我解决了这个问题。

完整的电话是：ssh-keygen -t rsa -b 4096 -m PEM，然后按照 Prakash 所说的步骤进行操作。

Source

Answer 3

您需要在 Jenkins 服务器上以 Jenkins 用户的身份创建一个公钥/私钥，然后将公钥复制到您想要在目标服务器上进行部署的用户。

第一步，以用户jenkins在构建服务器上生成公钥和私钥

build1:~ jenkins$ whoami
jenkins
build1:~ jenkins$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/var/lib/jenkins/.ssh/id_rsa): 
Created directory '/var/lib/jenkins/.ssh'.
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /var/lib/jenkins/.ssh/id_rsa.
Your public key has been saved in /var/lib/jenkins/.ssh/id_rsa.pub.
The key fingerprint is:
[...] 
The key's randomart image is:
[...]
build1:~ jenkins$ ls -l .ssh
total 2
-rw-------  1 jenkins  jenkins  1679 Feb 28 11:55 id_rsa
-rw-r--r--  1 jenkins  jenkins   411 Feb 28 11:55 id_rsa.pub 
build1:~ jenkins$ cat .ssh/id_rsa.pub
ssh-rsa AAAlskdjfalskdfjaslkdjf... jenkins@myserver.com

第 2 步，将 pub 文件内容粘贴到目标服务器上。

target:~ bob$ cd .ssh
target:~ bob$ vi authorized_keys (paste in the stuff which was output above.)
Make sure your .ssh dir has permissoins 700 and your authorized_keys file has permissions 644

第三步，配置Jenkins

In the jenkins web control panel, nagivate to "Manage Jenkins" -> "Configure System" -> "Publish over SSH"
Either enter the path of the file e.g. "var/lib/jenkins/.ssh/id_rsa", or paste in the same content as on the target server.
Enter your passphrase, server and user details, and you are good to go!