Jenkins : stderr: Permission denied (publickey). fatal: The remote end hung up unexpectedly

Question

I am hosting Jenkins on a virtual machine(redhat). I am able to setup jenkins system on it and able to access jenkins. But on manage jenkins page while creating any build job, when I giv my git repository link, I am getting this error -

Failed to connect to repository : Command "git ls-remote -h ssh://git.aaa.aaaa.corp:XXXXX/BSA/myProject.git HEAD" returned status code 128:
stdout: 
stderr: Permission denied (publickey). 
fatal: The remote end hung up unexpectedly

I tried to follow many solutions related to SSH keys but of no help.

PLs help.

Solution 1

• Log into your server with the user you installed Jenkins and put your ssh keys under home directory (cd ~). You should have .ssh folder with your public and private keys.
• Go to your Jenkins server : http://JenkinsMaster:Port/credentials and press "Add credentials"
• Select SSH Username with private key
  • Scope is Global
  • Username as the user that generated the SSH key
  • Private key from the Jenkins master ~/.ssh
  • Add description such as "service for GIT"
• In your job after selecting GIT as your SCM select those credentials (the field under the repository called credentials)

Good luck!

Solution 2

When you add new credentials to use jenkins, the private key (.ssh/id_rsa ) should be generate by the user jenkins.

1. sudo -i -u jenkins
2. mkdir ~/.ssh
3. cd ~/.ssh
4. ssh-keygen -t rsa -C "jenkins@git"
5. eval "$(ssh-agent -s)"
6. ssh-add ~/.ssh/id_rsa
7. cat id_rsa.pub Copy the output and add it to your Git repo. done