【发布时间】：2019-04-15 05:28:08
【问题描述】：
当我从 Git 签出 Jenkinsfile 时，我以前工作的 Jenkins 作业现在因错误而失败，并显示消息
Checking out git git@github.com:org/repo into C:\Program Files (x86)\Jenkins\workspace\blah@script to read Jenkinsfile
No credentials specified
..... several lines detailing Git operations ....
ERROR: Error fetching remote repo 'origin'
hudson.plugins.git.GitException: Failed to fetch from git@github.com:org/repo
.... more trace log ....
stderr: Host key verification failed.
fatal: Could not read from remote repository.
身份验证是通过 SSH 密钥进行的。 Jenkins 以我的本地用户身份运行（在 Manage Jenkins > System Information 选项卡中可见，通过 user.name 和 user.home 正确设置为保存 .ssh 目录的目录。
known_hosts 文件包含 GitHub 的密钥。
ssh -vT git@github.com 的运行会产生以下输出（对发布进行了少量替换）：
local-user>ssh -vT git@github.com
OpenSSH_for_Windows_7.7p1, LibreSSL 2.6.5
debug1: Connecting to github.com [192.30.255.112] port 22.
debug1: Connection established.
debug1: identity file C:\\Users\\local-user/.ssh/id_rsa type 0
debug1: key_load_public: No such file or directory
debug1: identity file C:\\Users\\local-user/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file C:\\Users\\local-user/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file C:\\Users\\local-user/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file C:\\Users\\local-user/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file C:\\Users\\local-user/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file C:\\Users\\local-user/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file C:\\Users\\local-user/.ssh/id_ed25519-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file C:\\Users\\local-user/.ssh/id_xmss type -1
debug1: key_load_public: No such file or directory
debug1: identity file C:\\Users\\local-user/.ssh/id_xmss-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_for_Windows_7.7
debug1: Remote protocol version 2.0, remote software version babeld-3e010779
debug1: no match: babeld-3e010779
debug1: Authenticating to github.com:22 as 'git'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: rsa-sha2-512
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ssh-rsa SHA256:<key, possibly public but removed>
debug1: Host 'github.com' is known and matches the RSA host key.
debug1: Found key in C:\\Users\\local-user/.ssh/known_hosts:1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey after 134217728 blocks
debug1: pubkey_prepare: ssh_get_authentication_socket: No such file or directory
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-rsa,rsa-sha2-512,rsa-sha2-256,ssh-dss>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering public key: RSA SHA256:<key, probably my public key> C:\\Users\\local-user/.ssh/id_rsa
debug1: Server accepts key: pkalg ssh-rsa blen 279
debug1: Authentication succeeded (publickey).
Authenticated to github.com ([192.30.255.112]:22).
debug1: channel 0: new [client-session]
debug1: Entering interactive session.
debug1: pledge: network
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
Hi <MyGitName>! You've successfully authenticated, but GitHub does not provide shell access.
debug1: channel 0: free: client-session, nchannels 1
Transferred: sent 2560, received 2236 bytes, in 0.3 seconds
Bytes per second: sent 9884.1, received 8633.2
debug1: Exit status 1
上周，相同的 Jenkinsfile、服务器配置和密钥都运行良好。我应该注意什么不小心改变了？我假设 Jenkins 要么没有找到密钥，要么找到了错误的密钥，但我不明白为什么。
我已经在 GitHub 上检查了存储库权限，此密钥的用户现在具有写入权限，但以前它即使只使用读取也可以工作。
【问题讨论】：
-
试试
git@github.com/org/repo而不是git@github.com:org/repo。 -
我非常有信心（并且 Jenkins 在更改配置时似乎也同意该消息） git@github.com/... 是无效的语法）。但是，更新和重新启动 Jenkins 解决了这个问题......也许是一个糟糕的 Jenkins 版本？但是发行说明没有提到任何看起来相关的更改，所以可能是一些奇怪的环境混乱。