add HEALTHCHECK directive support in containers

Registered by Jeffrey Zhang on 2016-10-27

Now docker supports healthcheck directive[0] in Dockerfile, which is helpful for checking container aliveness. It is nice to add this feature in Kolla.

[0] https://docs.docker.com/engine/reference/builder/#healthcheck

Blueprint information

Status:
Complete
Approver:
Martin André
Priority:
Medium
Drafter:
Jeffrey Zhang
Direction:
Approved
Assignee:
Michal Nasiadka
Definition:
Approved
Series goal:
Accepted for victoria
Implementation:
Implemented
Milestone target:
milestone icon 11.0.0
Started by
Michal Nasiadka on 2019-08-13
Completed by
Mark Goddard on 2020-10-26

Related branches

Sprints

Whiteboard

As a start, we could import the healtch checks that were developed as part of tripleo: https://github.com/openstack/tripleo-common/tree/master/healthcheck

Gerrit topic: https://review.opendev.org/#/q/topic:bp/container-health-check

(?)

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* Blueprints in grey have been implemented.

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