[CLOUDSTACK-10449] GSoC 2022 Idea: Keep track of VM's "last known state" and enforce it after an outage

• Type: New Feature
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: Management Server
• Labels: gsoc2022 mentor new-feature
• Assignee: Unassigned
• Reporter: Nux
• Created: 28/Feb/22 11:04
• Updated: 06/Apr/22 13:29

Description

An infrastructure outage can take out several or all VMs. In the aftermath it's not always possible to know which VMs were supposed to be ON or OFF, especially if HA is not enabled. People keep powered off VMs around all the time for many reasons.

I propose we add a feature where Cloudstack keeps track of the "last known state" of a VM and after an outage either enforce it (ie start the VM or leave it off) or at least show some information to the operator in the UI/API so they can do it themselves; perhaps make this behaviour configurable in the global settings.

Thanks