[SPARK-28886][K8S] Fix the DepsTestsSuite with minikube 1.3.1

### What changes were proposed in this pull request?

Matches the response from minikube service against a regex to extract the URL

### Why are the changes needed?

minikube 1.3.1 on OSX has different formatting than expected

### Does this PR introduce any user-facing change?

No

### How was this patch tested?

Ran the existing integration test run on OSX with minikube 1.3.1

Closes apache#25599 from holdenk/SPARK-28886-fix-deps-tests-with-minikube-1.3.1.

Authored-by: Holden Karau <[email protected]>
Signed-off-by: Sean Owen <[email protected]>

Author: holdenk

resource-managers/kubernetes/integration-tests/src/test/scala/org/apache/spark/deploy/k8s/integrationtest/DepsTestsSuite.scala

@@ -224,9 +224,20 @@ private[spark] trait DepsTestsSuite { k8sSuite: KubernetesSuite =>
   }
 
   private def getServiceUrl(serviceName: String): String = {
+    val fuzzyUrlMatcher = """^(.*?)([a-zA-Z]+://.*?)(\s*)$""".r
     Eventually.eventually(TIMEOUT, INTERVAL) {
       // ns is always available either random or provided by the user
-      Minikube.minikubeServiceAction(serviceName, "-n", kubernetesTestComponents.namespace, "--url")
+      val rawUrl = Minikube.minikubeServiceAction(
+        serviceName, "-n", kubernetesTestComponents.namespace, "--url")
+      val url = rawUrl match {
+        case fuzzyUrlMatcher(junk, url, extra) =>
+          logDebug(s"Service url matched junk ${junk} - url ${url} - extra ${extra}")
+          url
+        case _ =>
+          logWarning(s"Response from minikube ${rawUrl} did not match URL regex")
+          rawUrl
+      }
+      url
     }
   }
 }