Load Balancer ports switching?

Posted January 26, 2020 2.1k views
DigitalOcean Managed KubernetesDigitalOcean Managed Load Balancers

I have a DO Load Balancer connecting to a kubernetes service with 3 ports: 80, 443, and port 70 (aka gopher). Here’s the definition:

  name: gopher-thingy
  annotations: "http" "round_robin" "443" "**redacted**"
  type: LoadBalancer
  - name: gopher
    port: 70
    targetPort: 70
    protocol: TCP
  - name: http
    port: 80
    targetPort: 80
    protocol: TCP
  - name: https
    port: 443
    targetPort: 80
    protocol: TCP

I’ve exposed port 70 via a separate ConfigMap as described in the ingress setup docs

apiVersion: v1
kind: ConfigMap
  name: tcp-services
  namespace: default
  70: "gopher-thingy:70"

When I apply this, HTTP and HTTPS are setup as expected, but the gopher port is forwarded to port 80 instead of port 70. I need to go into the load balancer in the networking panel and change it manually.

Am I missing something? This seems like a bug.


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1 answer

This may be because of the default protocol you’re selecting. Can you try using the following annotations instead: “tcp” “round_robin” “443,80” “443”