Keycloak port-forward from local kubernetes cluster-CodePudding

I am trying to connect Keycloak running on local Kubernetes cluster with Spring Security OAuth application. When I port-forward Keycloak from k8s using kubectl port-forward svc/keycloak 8080:8080 I can access web GUI with no problem, but when Authorizing with Spring Security, it will always throw an error

Invalid token issuer. Expected 'http://localhost:8080/auth/realms/master', but was 'http://10.104.81.255:8080/auth/realms/master'

Here is my Keycloak configuration in Spring

keycloak:
  realm: master
  auth-server-url: http://localhost:8080/auth
  ssl-required: external
  resource: my-resource
  use-resource-role-mappings: true
  public-client: true

Please let me know how I can set this up, so I can continue developing locally.

NOTE: When the Spring Application runs within the cluster and I port-forward that one instead, it obviously works perfectly.

CodePudding user response：

It looks like you haven't configured the frontendUrl for the Hostname provider. Set it to http://localhost:8080/auth and you should be fine.