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Can't use two load balancers for the same Kubernetes pool?
I set up my Kubernetes. At first, it was one load balancer serving my static content and everything was working fine. Now, I’ve tried adding a second load balancer to serve my API but it doesn’t seem to work. In the control panel, it shows it’s not working Screenshot
And when I run kubectl get all it appears to all be working fine:
NAME READY STATUS RESTARTS AGE pod/cinch-engine-8b8fb784b-zqkbw 1/1 Running 0 28m
pod/cinch-static-64f9b98d88-tj5jl 1/1 Running 0 73m
pod/pgdb-85c5d747cc-n6jn8 1/1 Running 5 73m
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/cinch-engine-load-balancer LoadBalancer 10.245.68.233 68.183.249.0 80:31173/TCP 73m
service/cinch-static-load-balancer LoadBalancer 10.245.114.184 138.197.233.57 80:30119/TCP 73m
service/kubernetes ClusterIP 10.245.0.1 <none> 443/TCP 4d5h
service/pgdb ClusterIP 10.245.25.230 <none> 5432/TCP 73m
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/cinch-engine 1/1 1 1 73m
deployment.apps/cinch-static 1/1 1 1 73m
deployment.apps/pgdb 1/1 1 1 73m
NAME DESIRED CURRENT READY AGE
replicaset.apps/cinch-engine-8b8fb784b 1 1 1 28m
replicaset.apps/cinch-static-64f9b98d88 1 1 1 73m
replicaset.apps/pgdb-85c5d747cc 1 1 1 73m
NAME COMPLETIONS DURATION AGE
job.batch/cinch-engine-migrate 1/1 4m21s 73m
edited by AHA
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Hi there,
What you’re attempting should be possible to do. I would double check that your healthchecks are set to what you’re expecting. You can configure the healthchecks using service annotations:
https://www.digitalocean.com/docs/kubernetes/how-to/configure-load-balancers/
Also note that the externaltrafficpolicy on your service will determine the rules for a node showing as “healthy”.
‘Local’ - Only nodes hosting a pod of that service will show healthy.
'Cluster’ - All nodes will show healthy, but you will incur a extra network hop as all nodes can accept traffic and then forward the traffic to a node with the pod. You will loose the original clientIP using this setting.
Let me know if you have any additional questions.
Regards,
John Kwiatkoski
Senior Developer Support Engineer
Thank you for the help. It turns out I was binding to 127.0.0.1:8000 instead of 0.0.0.0:8000. The problem has nothing to do with Kubernetes, DigitalOcean, or LoadBalancers. This question can be deleted as I can’t imagine it will be relevant to anyone else.