Cannot connecto to external database from inside kubernetes pod

Question

I am trying to connect my spring-boot api inside a kubernetes pod to an external database (a separate machine but within the local network), however when running, I get SQLNonTr

Answer 1

If I understand you correctly you need a ExternalName service type.

ExternalName: Maps the Service to the contents of the externalName field (e.g. foo.bar.example.com), by returning a CNAME record with its value. No proxying of any kind is set up.

Here is an example:

apiVersion: v1
kind: Service
metadata:
  name: my-service
  namespace: prod
spec:
  type: ExternalName
  externalName: my.database.example.com

When looking up the host my-service.prod.svc.cluster.local, the cluster DNS Service returns a CNAME record with the value my.database.example.com. Accessing my-service works in the same way as other Services but with the crucial difference that redirection happens at the DNS level rather than via proxying or forwarding.

Please let me know if that helped.