kuryr-kubernetes/releasenotes/notes/active-passive-ha-cfbda8e6b527b48e.yaml
Michał Dulko e416b2492a kuryr-controller A/P HA
This commit implements initial version of high availability support in
kuryr-controller - Active/Passive mode. In this mode only one instance
of controller is processing the resources while other ones are in
standby mode. If current leader dies, one of standbys is taking the
leader role and starts processing resources.

Please note that as leader election is based on Kubernetes mechanisms,
this is only supported when kuryr-controller is run as Pod on Kubernetes
cluster.

Implements: bp high-availability

Change-Id: I2c6c9315612d64158fb9f8284e0abb065aca7208
2018-06-14 10:25:34 +02:00

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YAML

---
features:
- |
Kuryr-Kubernetes now supports running kuryr-controller service in
**Active/Passive HA mode**. This is only possible when running those services
as Pods on Kubernetes cluster, as Kubernetes is used for leader election.
Also it is required to add leader-elector container to the kuryr-controller
Pods. HA is controlled by ``[kubernetes]controller_ha`` option, which
defaults to ``False``.