Update HAProxy role for Production use

Registered by Jean-Philippe Evrard on 2015-08-18

HA Proxy can be improved by adding a few changes:
- Deploying it with Keepalived, to bring HA to haproxy
- Allowing configuration interface to easily adapt load
- Adapting the default configuration and the services deployed with the inventory. This way we can only deploy what's used
- Adapting default timer values to be more efficient.

Blueprint information

Status:
Complete
Approver:
Kevin Carter
Priority:
Medium
Drafter:
Jean-Philippe Evrard
Direction:
Approved
Assignee:
Jean-Philippe Evrard
Definition:
Approved
Series goal:
None
Implementation:
Implemented
Milestone target:
milestone icon newton-2
Started by
Jesse Pretorius on 2015-09-28
Completed by
Jesse Pretorius on 2016-08-02

Whiteboard

We'll work separately, each topic to improve haproxy will be addressed by different commits.

Keepalived:
https://review.openstack.org/#/c/217517/

Easy administration:
https://review.openstack.org/#/c/215019/ and https://review.openstack.org/#/c/214110/

Default configuration less static:
Blueprint/commit not yet released

Default timer value changes:
Blueprint/commit not yet released

Gerrit topic: https://review.openstack.org/#q,topic:role-haproxy-v2,n,z

Addressed by: https://review.openstack.org/214089
    Add spec to change haproxy default behaviour

Gerrit topic: https://review.openstack.org/#q,topic:bp/role-haproxy-v2,n,z

(?)

Work Items

Dependency tree

* Blueprints in grey have been implemented.

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