Add note on changing LoadBalancer to NodePort when using Kubernetes on Docker Desktop

Resolves #3115

Author: chrisjs

spring-cloud-dataflow-docs/src/main/asciidoc/getting-started-kubernetes.adoc

@@ -334,6 +334,8 @@ environmentVariables: 'SPRING_CLOUD_STREAM_KAFKA_BINDER_BROKERS=${KAFKA_SERVICE_
 
 Run the following commands to start Skipper as the companion server for Spring Cloud Data Flow:
 
+NOTE: If using a platform such as Kubernetes on Docker Desktop which provides a local `LoadBalancer` implementation, edit `src/kubernetes/skipper/skipper-svc.yaml` replacing `LoadBalancer` with `NodePort` to avoid port conflicts.
+
 ====
 [source,bash]
 ----

src/kubernetes/server/server-deployment.yaml

@@ -50,7 +50,7 @@ spec:
           value: 'http://${SCDF_SERVER_SERVICE_HOST}:${SCDF_SERVER_SERVICE_PORT}'
           # Provide the Skipper service location
         - name: SPRING_CLOUD_SKIPPER_CLIENT_SERVER_URI
-          value: 'http://${SKIPPER_SERVICE_HOST}/api'
+          value: 'http://${SKIPPER_SERVICE_HOST}:${SKIPPER_SERVICE_PORT}/api'
           # Add Maven repo for metadata artifact resolution for all stream apps
         - name: SPRING_APPLICATION_JSON
           value: "{ \"maven\": { \"local-repository\": null, \"remote-repositories\": { \"repo1\": { \"url\": \"https://repo.spring.io/libs-snapshot\"} } } }"

src/kubernetes/skipper/skipper-svc.yaml

@@ -5,7 +5,7 @@ metadata:
   labels:
     app: skipper
 spec:
-  # If you are running k8s on a local dev box or using minikube, you can use type NodePort instead
+  # If you are running k8s on a local dev box, using minikube, or Kubernetes on docker desktop you can use type NodePort instead
   type: LoadBalancer
   ports:
   - port: 80