Hi there!
Unrelated to other operations that were communicated recently (datacenter PDU upgrades, operating system upgrades, etc) we need to reboot all the cloudvirt servers to introduce some security updates for CPU vulnerabilities.
Along with the physical hardware reboot we also need to reboot all the virtual machines running in CloudVPS.
This operation is a bit disruptive but very quick and should not lead to any unexpected errors (is just a reboot). We already tried the same upgrades in some other servers.
We will be doing the reboots during this week (starting 2019-07-29). If you see any problems related to this, please contact us.
regards.
cloud-announce@lists.wikimedia.org