Allow the user to decide whether an instance should be resumed on host reboot
The configuration option resume_
a global policy on whether or not to restart instances when a host
reboots. Because a host may be down for a significant period of
time many cloud applications monitor their own instances and launch
replacements restarting all instances is rarely the required behavior
This blueprint provides the user with a mechanism to specify at create
time which of their instances should be restarted on a host reboot.
Initially three values will be accepted:
RESUME_DEFAULT - Follow the resume policy configured in the system
RESUME_NEVER - Don't resume the instance
RESUME_ALWAYS - Always resume the instance
Ideally we would allow the user to specify max_downtime policy where instances
are only resumed is the host has been stopped for less that the user specified
duration (i.e "Only resume if the host is down for less than 5 minutes") - but not
all ServiceGroup Drivers can support this model
Blueprint information
- Status:
- Started
- Approver:
- Russell Bryant
- Priority:
- Undefined
- Drafter:
- Phil Day
- Direction:
- Needs approval
- Assignee:
- Phil Day
- Definition:
- Drafting
- Series goal:
- None
- Implementation:
-
Needs Code Review
- Milestone target:
- None
- Started by
- Phil Day
- Completed by
Related branches
Related bugs
Sprints
Whiteboard
Gerrit topic: https:/
Addressed by: https:/
Allow user to specify instance resume behaviour on host reboot
Gerrit topic: https:/
Unapproved - please re-submit via nova-spec --johnthetubagy (20th March 2014)
Removed from next, as next is now reserved for near misses from the last milestone --johnthetubagu
Addressed by: https:/
Allow user to specify instance resume behaviour on host reboot
Gerrit topic: https:/
Unapproved - please re-submit via nova-spec --johnthetubagy (20th March 2014)
Removed from next, as next is now reserved for near misses from the last milestone --johnthetubaguy
Marking this blueprint as definition: Drafting. If you are still working on this, please re-submit via nova-specs. If not, please mark as obsolete, and add a quick comment to describe why. --johnthetubaguy (20th April 2014)
