How to synchronize backend state?

Help!
1

Hello,

I’ve setup a haproxy active-passive cluster using ucarp.
Now my question is: how would I synchronize backend state?
I.e. when I set the backend state to “drain” on one of the nodes I would like to have this change replicated to the other node.

Regards,
Carsten

2

This is not possible, there is no synchronization between backend states.

3

This is a pity…
So either I need to remember to always perform changes on both systems. Or I do not use the web frontend at all but write some scripts to talk to both haproxy sockets or I give this a try: GitHub - chrislusf/teeproxy

I do not like either of these possibilities…

4

Correct. If you want to orchestrate multiple haproxy instance from one dashboard, you need additional abstraction.

5

Maybe the dataplane API can help you orchestrate something Announcing HAProxy Data Plane API 2.5 - HAProxy Technologies