Question
How to use one loadbalancer for exposing two deployments in two different node pool?
- Posted on December 13, 2022
- DigitalOcean Managed KubernetesKubernetes
Asked by nikhilnixel
I have two docker images that run on two different node pools. Api runs on say node-pool-a, Api-legacy runs on node-pool-b.
Now I wanted to access both via same loadbalancer using this snippet.
apiVersion: v1
kind: Service
metadata:
name: api-service
spec:
selector:
app: api
ports:
- name: api
port: 8000
targetPort: 8000
- name: api-legacy
port: 1883
targetPort: 1883
type: LoadBalancer
But I notice I can use selector for one deployment. Help!
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Hi there,
Load balancers can listen on multiple ports, but they can only point at one backend service.
You’ll need to put something like ingress-nginx behind the load balancer to route traffic for different domains to different services:
https://marketplace.digitalocean.com/apps/nginx-ingress-controller
There was a similar question asked here:
https://www.digitalocean.com/community/questions/kubernetes-load-balancer-with-multiple-ports
Hope that this helps!
Best,
Bobby