On 2020-03-03, Brooke completed the automatic migration phase of the 2020 Kubernetes migration by moving the last workloads from the legacy Kubernetes cluster to the 2020 Kubernetes cluster [0].

All Toolforge tools using `webservice --backend=kubernetes ...` and/or manually maintained Kubernetes objects are now running on the 2020 Kubernetes cluster. The Toolforge admin team is in the process of tearing down the legacy cluster and cleaning up various documentation and tooling related to it [1].

This project involved a lot of hard work that most of the Toolforge community did not see. Brooke and Arturo started planning things over a year ago [2] to ensure that the Toolforge admin team would be able to complete this migration with a minimum amount of disruption to tools and their maintainers. Along the journey they researched Kubernetes best practices and recommendations, read and re-read numerous tutorial and how-to docs, and designed a completely new process to automate the deployment of Kubernetes in Toolforge. They also sought and received help from other Toolforge admins, Wikimedia Foundation staff, and technical volunteers. This was a truly collaborative effort.

I am very happy to say that in my opinion we have a well automated and monitored Kubernetes cluster in Toolforge today. There are many more features that we will continue to work on as we try to make Kubernetes use in Toolforge easier for everyone, but we can only do that work because we now have this solid base to build on. I look forward to announcements of many more features in the coming months.

Thank you to our alpha and beta testers who found more edge cases and made good suggestions for simplifying things. Thank you all for your patience and understanding when things did not go quite as planned during this process. And finally thank you in advance for the edits that will be made to help pages on Wikitech and elsewhere as we all work on bug #1 (improving documentation).

[0]: https://phabricator.wikimedia.org/T246519 [1]: https://phabricator.wikimedia.org/T246689 [2]: https://phabricator.wikimedia.org/T214513

Bryan, on behalf of the Toolforge admin team and the Wikimedia Cloud Services team