Store build results and discard old build records

[mkaapu]

Archives the build results as post step of pipeline.
Discard old builds and artifacts:

• build age: no older than 70 days
• build count: maximum 100 builds
• artifact age: no older than 7 days
• artifact count: maximum 10 builds

[mnokka]

ok

[henrirosten]

I believe the proposed configuration would not work due to:

archiveArtifacts step copies the build images to /var/lib/jenkins on the jenkins-controller VM. In the current ghaf-infra configuration, /var/lib/jenkins is a 10GiB jenkins state disk (configured here and mounted here) so as it is now, there is simply no disk space to store the ghaf images (artifacts).

If we want to distribute the artifacts the way proposed here, how much disk space would we need?
One build generates roughly 100GiB of build artifacts, so storing build results from 10 builds would need around 1000GiB of disk space. You could reduce the disk usage by compressing the stored images.

Short term, if we must, we can have PoCs like this for the artifact distribution. Longer term, I believe we should think of better ways of doing this.

[mkaapu]

Short term, if we must, we can have PoCs like this for the artifact distribution. Longer term, I believe we should think of better ways of doing this.

As a workaround, jenkins home/state disk size was increased with
tiiuae/ghaf-infra#103