Managing SSH keys within Jenkins for Git

Question

I m trying to get Jenkins up and running with a GitHub hosted repository  using the Jenkins Git plugin   The repository has multiple git submodules  so I m not sure I want to try and manage multiple deploy keys   My personal GitHub user account is a collaborator of each of the projects I wish to pull in with Jenkins  so I ve generated an SSH key within  var lib jenkins  ssh and added it to my personal GitHub account   However  when I try and add the repository URL to my Jenkins project configuration  I get   Failed to connect to repository   Command  git ls-remote -h git github com         git HEAD  returned status code 128  stdout   stderr  Host key verification failed   fatal  The remote end hung up unexpectedly   Likewise  when I schedule a build I get   stderr  Host key verification failed  fatal  The remote end hung up unexpectedly   I ve also tried setting up an SSH config file as outlined here  but to no avail   Can anyone shed any light  Thanks  EDIT  I should add that I m running CentOS 5 8

User · Answer

Have you tried logging in as the jenkins user?

Try this:

sudo -i -u jenkins #For RedHat you might have to do 'su' instead.
git clone [email protected]:your/repo.git

Often times you see failure if the host has not been added or authorized (hence I always manually login as hudson/jenkins for the first connection to github/bitbucket) but that link you included supposedly fixes that.

If the above doesn't work try recopying the key. Make sure its the pub key (ie id_rsa.pub). Maybe you missed some characters?

User · Answer

According to this article  you may try following command      ssh-add -l   If your key isn t in the list  then      ssh-add  var lib jenkins  ssh id rsa project

User · Answer

It looks like the github com host which jenkins tries to connect to is not listed under the Jenkins user s  HOME  ssh known hosts  Jenkins runs on most distros as the user jenkins and hence has its own  ssh directory to store the list of public keys and known hosts   The easiest solution I can think of to fix this problem is     Login as the jenkins user and specify shell explicity    since the default shell is  bin false for most   jenkins installations  sudo su jenkins -s  bin bash  cd SOME TMP DIR   git clone YOUR GITHUB URL    Allow adding the SSH host key to your known hosts    Exit from su exit

User · Answer

This works for me if you have config and the private key file in the  Jenkins  ssh  you need to chown  change owner  for these 2 files then restart jenkins in order for the jenkins instance to read these 2 files

[git] Managing SSH keys within Jenkins for Git

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