How to Configure Jenkins Job to Use Bitbucket Repository Access Key

bitbucketJenkinsssh

In one of my bitbucket repositories on a Bitbucket server instance, I've configured an Access Key and would like to use this access key within a Jenkins Job to clone said repository. However, there doesn't seem to be a credential provider for this scenario.

I can't use the username with SSH key since with the access key associated with a system, doesn't have a username.

Can somebody point me in the right direction?

Thx

Best Answer

Just ignore the username; add your access key as an SSH key credential in Jenkins and put whatever you want in the username field. When you clone a Bitbucket repository using SSH keys you almost always use git as the username anyway.

For instance, here is an example Pipeline that will check out a repo using an access key with the ID myAccessKey:

git(credentialsId: 'myAccessKey', url: 'ssh://git@bitbucket.my.org:7999/project/repo.git')

As you should be able to see, it doesn't matter what you put for the username field in your Jenkins SSH credential, because you checkout the repo as the git user regardless.

Alternatively, put git for the username when creating your credential.

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You should have the private key there, not just the public key. If your public key is id_rsa.pub, your private key is probably named id_rsa.

I assume you copied this public key from some other system (perhaps your local desktop)?

You can either copy the corresponding private key to the jenkins ~/.ssh directory as well, or you can generate a new keypair for your jenkins user and import that public key in bitbucket.

To generate a new ssh keypair:

cd ~/.ssh
ssh-keygen -t rsa

This will generate the following output:

Generating public/private rsa key pair.
Enter file in which to save the key (/home/b/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/jenkins/.ssh/id_rsa.
Your public key has been saved in /home/jenkins/.ssh/id_rsa.pub.

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Yes, it's a missing known_hosts entry. No problem with lack of shell access, you can create a Jenkins job which contains just a "batch" command similar to this:

ssh-keyscan -t rsa my_host | tee -a ~/.ssh/known_hosts

Build this little "project" and ssh shall work beautifully. If you have a larger Jenkins environment with multiple slaves, you need to run this on all slaves.

Best Answer

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