backport pod name fix from main to release/3.4 (#3169)

* backport pod name fix from main to release/3.4

Author: sankarpn

integration-tests/src/test/java/oracle/weblogic/kubernetes/utils/DbUtils.java

@@ -125,6 +125,7 @@ public static synchronized void setupDBandRCUschema(String dbImage, String fmwIm
   public static synchronized void startOracleDB(String dbBaseImageName, int dbPort, String dbNamespace,
       int dbListenerPort) throws ApiException {
     LoggingFacade logger = getLogger();
+    String dbPodNamePrefix = "oracledb";
 
     if (OKD) {
       addSccToDBSvcAccount("default", dbNamespace);
@@ -200,7 +201,7 @@ public static synchronized void startOracleDB(String dbBaseImageName, int dbPort
                             .addEnvItem(new V1EnvVar().name("DB_BUNDLE").value("basic"))
                             .image(dbBaseImageName)
                             .imagePullPolicy("IfNotPresent")
-                            .name("oracledb")
+                            .name(dbPodNamePrefix)
                             .ports(Arrays.asList(
                                 new V1ContainerPort()
                                 .containerPort(dbListenerPort)
@@ -237,7 +238,7 @@ public static synchronized void startOracleDB(String dbBaseImageName, int dbPort
     }
 
     // wait for the Oracle DB pod to be ready
-    String dbPodName = assertDoesNotThrow(() -> getPodNameOfDb(dbNamespace),
+    String dbPodName = assertDoesNotThrow(() -> getPodNameOfDb(dbNamespace, dbPodNamePrefix),
         String.format("Get Oracle DB pod name failed with ApiException for oracleDBService in namespace %s",
             dbNamespace));
     logger.info("Wait for the oracle Db pod: {0} ready in namespace {1}", dbPodName, dbNamespace);
@@ -434,22 +435,24 @@ private static boolean createRcuRepository(String dbNamespace, String dbUrl,
 
   /**
    * Get database pod name.
+   *
    * @param dbNamespace namespace where database exists
+   * @param podPrefix prefix of database pod
    * @return pod name of database
    * @throws ApiException if Kubernetes client API call fails
    */
-  public static String getPodNameOfDb(String dbNamespace) throws ApiException {
-
-    V1PodList  pod = null;
-    pod = Kubernetes.listPods(dbNamespace, null);
-
+  public static String getPodNameOfDb(String dbNamespace, String podPrefix) throws ApiException {
     String podName = null;
-
-    //There is only one pod in the given DB namespace
-    if (pod != null) {
-      podName = pod.getItems().get(0).getMetadata().getName();
+    V1PodList pods = null;
+    pods = Kubernetes.listPods(dbNamespace, null);
+    if (!pods.getItems().isEmpty()) {
+      for (V1Pod pod : pods.getItems()) {
+        if (pod != null && pod.getMetadata().getName().startsWith(podPrefix)) {
+          podName = pod.getMetadata().getName();
+          break;
+        }
+      }
     }
-
     return podName;
   }