jenkins配置 gitlab 部署deploy秘钥id_rsa

```

jenkins@ip-www:~/.ssh$ ssh-keygen

Generating public/private rsa key pair.

Enter file in which to save the key (/var/lib/jenkins/.ssh/id_rsa):

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:

SHA256:Eo4m3qyr0saoQwzWZSxegXPwtiQx95XHu+wMgy/5S7U jenkins@ip-www

The key's randomart image is:

+---[RSA 2048]----+

|  ++o.  .o      |

|  +=*. .. o    |

|  o.B+..  . .    |

|.. o+o..  .    |

|+ . o.o S ...    |

| + =  o o.o.    |

|.+. o  o.=E    |

|+ +.  o.. o    |

|=+o.    oo.      |

+----[SHA256]-----+

```