kas-docker - fail to log into git repository with ssh

Hi,

I am having trouble getting a recipe to download a git repository via ssh using kas-docker. The build fails with the error

Load key "/builder/.ssh/id_rsa.pb": invalid format
git@code.siemens.com: Permission denied (publickey)

kas-docker is invoked with --ssh-dir=/home/iain/.ssh

I have analysed the problem by adding the following to do_fetch() in base.bbclass

import os
os.system('ssh -vT git@code.siemens.com')

The comparison of ssh -vT run natively and in kas-docker is attached (key values are sanitised). My suspicion is that the kas-docker implementation is missing the key passphrase that I occasionally have to enter in the native environment.

Has anyone managed to solve this problem already?

Thanks, Iain

Yes, kas[-docker] is primarily designed for non-interactive execution. Consequently, you have to provide all needed information upfront when invoking it, there will be no passphrase prompting while running.

Pure kas also supports forwarding the ssh-agent connection, kas-docker (or "kas-container" soon) only ssh dir forwarding.

When you do not want to pass in a key with broad write access, create a per-project read-only access token and use that in favor of ssh (git clone https://gitlab-ci-token:<token>@code.siemens.com...).