We currently run https://yarn.wikimedia.org on a single virtual machine:
- an-tool1008.eqiad.wmnet
We need to upgrade this machine to bullseye.
We have already upgraded an-test-ui1001.eqiad.wmnet to bullseye, which also runs an instance of the yarn web ui to bullseye.
However, it might be necessary to double-check that this works before upgrading the production instance of yarn.wikimedia.org