Creating SSH key on Jenkins Master - Centos Yum Install
I have installed Jenkins on a Centos VM as I am looking at replacing Bamboo, I have it all up and running by following the install instructions. That went fine, I then wanted to spin up a Slave, I created a second VM, created a user on it, created a SSH key for that user. I then created a Slave node in Jenkins but when I created the account in Jenkins for the Slave machine and supplied the SSH Private key I got and error. Which is right as I did not put the Master SSH pub key on the Slave in the ~/.ssh/authorized_keys.
It looks like the Centos Yum install does not create ssh keys for the user running Jenkins, I did my Google fu and from what I read I need this to do what I want to do. I did try SU as the on the machine but with no luck. I would like to know how I need to do this, as I would sooner use SSH keys.
In saying all of this I have got a slave going by using the SSH option using a password, it works but it's not the way I want to do this.
Any help would be super!
I just had the same problem. What I did was:
- On the master change to root user:
su root - Execute:
passwd jenkins - Specify a password for the jenkins user
- Change to the jenkins user (and supply password from step 3):
su jenkins - Run
ssh-keygen
That solved the problem for me. I could not do sudo passwd jenkins, I had to change to the root user. You might also want to add the remote server to the know_hosts file.
A more suitable way to achieve the same thing would be to run:
# sudo -u jenkins ssh-keygen
That will generate the key for you here:
/var/lib/jenkins/.ssh/id_rsa.pub