How to configure Acitve/Standby high availability for application deployed in Kubernetes

Question

I have to deploy an application in Kubernetes in Active/Standby High availability configurations. How to do this using Kubernetes concepts?

Thanks

It doesn't make any sense. If your cluster goes down, all your environments will go down, and if your cluster is up, your primary app (the active one) is going to work just fine. So, I would say you are just wasting resources. It is not a k8s approach. — suren, Oct 14 '19 at 07:11

score 1 · Answer 1 · edited Nov 01 '19 at 21:28

1

There is no any native support for Active/Standby application deployment in Kubernetes.

Here is the feature request on Github.

edited Nov 01 '19 at 21:28

halfer

answered Oct 14 '19 at 07:16

mchawre

Is there any other way we can do it ourselves ? – Chandu Oct 14 '19 at 08:13
Can you check the second answer listed here https://stackoverflow.com/questions/47291581/kubernetes-service-with-clustered-pods-in-active-standby It suggest to make use of labels as an hack. – mchawre Oct 14 '19 at 09:24

score 0 · Answer 2 · answered Oct 14 '19 at 06:27

0

front the two application instances using ha-proxy. ha-proxy supports active/standby mode

answered Oct 14 '19 at 06:27

P Ekambaram

What is ha-proxy ? Is it an image , where ? – Chandu Oct 14 '19 at 06:32
I cannot use 3rd party apps. Have to use only kubernetes concepts. – Chandu Oct 14 '19 at 07:02

2 Answers2