* Add ephemeral-storage requests and limits to agents, and log peak disk usage
Agents were evicted at the node level due to lack of disk space. Each pod needs minimum 100GiB, and each template now budgets 80Gi of the ~89Gi that a 100GiB node allocates, with docker's own volume carries a 60Gi sizeLimit. Exceeding either evicts the pod, so logging has been added in each test split before and after the run. All script blocks in Jenkinsfile are now labeled for improved readability in test runs.
* `.build/run-ci` must not silently drop a site's helm values customisations
Long-lived instances like pre-ci.cassandra.apache.org carry values in addition to the jenkins-deployment.yaml, and any `helm upgrade -f jenkins-deployment.yaml` (or `.build/run-ci`) would drop them. Allow these values to be kept in a separate file, passed in with `--values-override`. Before upgrading helm values, we now compare the deployed values against what is about to be applied and require confirmation for anything only the site holds. This catches added keys and dropped list items (but it cannot catch every change).
Also keep the jenkins-home pvc claim on uninstall, so --only-tear-down no longer destroys build history. Add jenkins-test.sh and a gha workflow for test validating changes under .jenkins/
patch by Mick Semb Wever; reviewed by Dmitry Konstantinov for CASSANDRA-21523
.build/run-ci is a a python script used to create and interact with k8s provisioned ci-cassandra.apache.org clones
See .build/run-ci.d/README.md for docs on usage.
.jenkins/k8s/ contains the k8s jenkins helm chart, JSaC configuration, and docker image for provisioning.
.build/run-ci.d/ contains python requirements and tests for .build/run-ci
patch by Richa Mishra, Nishant Barola, Aleksandr Volochnev, Mick Semb Wever; reviewed by Richa Mishra, Nishant Barola, Aleksandr Volochnev, Brandon Hsieh, Mick Semb Wever, Brandon Williams for CASSANDRA-18145
Co-authored-by: Richa Mishra <richa.mishra@infracloud.io>
Co-authored-by: Nishant Barola <nishant.barola@infracloud.io>
Co-authored-by: Aleksandr Volochnev <a.volochnev@gmail.com>
Co-authored-by: Mick Semb Wever <mck@apache.org>
Mick Semb Wever