Next Friday we'll be upgrading our OpenStack cluster. The upgrade
should not interrupt any existing tools or instances, but during the
upgrade it will be impossible to create, delete, or modify WMCS VMs.
I'll start the process at around 14:00 UTC (7AM PDT). The complete
upgrade may take much of the day; Horizon will be disabled for the
duration of this update. CI/Nodepool will function intermittently
during this time.
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