I have a CI pipeline to build my android app and run instrumented test using gitlab pipelines. My gitlab runner is a ubuntu 16.04 machine running each build in a docker container. I have a physical android device connected via USB to my gitlab runner.
Recently, every time a new build is triggered, I am prompted to allow the RSA fingerprint for the USB device on my android target. The problem is that the fingerprint changes with every build.
I suspect that this is because a new container is created every time a build start.
How can I automatically accept the new fingerprint or prevent the fingerprint from changing?
Make contents of $HOME/.android/adbkey and $HOME/.android/adbkey.pub persistent between the runs by mapping the folder or just re-creating the files inside every container instance.