Supporting zero downtime upgrade

Registered by Duong Ha-Quang on 2017-03-06

Zero-downtime upgrade is highly demanding feature form operators. Beside some services support natively (Kolla need implementing the mechanism provided by the these), there are many services have not fully supported it.

As deployment tool, Kolla can provide a mechanism for solving this situation.

Related specification for services have not supported zero-downtime-upgrade: https://review.openstack.org/#/c/409598/

Project tag related to upgrade: https://governance.openstack.org/tc/reference/tags/index.html#project-assertion-tags

Blueprint information

Status:
Not started
Approver:
None
Priority:
Undefined
Drafter:
Duong Ha-Quang
Direction:
Needs approval
Assignee:
None
Definition:
New
Series goal:
None
Implementation:
Unknown
Milestone target:
None

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I link hrito bp as another option for graceful shutdown.

(?)

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