skip deleting istio-system namespace in OCNE environment (#4077)

* skip deleting istio-system namespace in OCNE environment

Author: xiancao

integration-tests/pom.xml

@@ -50,6 +50,7 @@
         <wko.it.node.ip>${env.NODE_IP}</wko.it.node.ip>
         <wko.it.fss.dir>${env.FSS_DIR}</wko.it.fss.dir>
         <wko.it.okd.cluster>${env.OKD}</wko.it.okd.cluster>
+        <wko.it.ocne.cluster>${env.OCNE}</wko.it.ocne.cluster>
         <wko.it.oracle.db.operator.release>${env.ORACLE_DB_OPERATOR_RELEASE}</wko.it.oracle.db.operator.release>
         <wko.it.oraclelinux.test.version>${env.ORACLELINUX_TEST_VERSION}</wko.it.oraclelinux.test.version>
         <wko.it.wdt.download.url>${wdt.download.url}</wko.it.wdt.download.url>
@@ -228,6 +229,7 @@
                                 <wko.it.nfs.server>${wko.it.nfs.server}</wko.it.nfs.server>
                                 <wko.it.fss.dir>${wko.it.fss.dir}</wko.it.fss.dir>
                                 <wko.it.okd.cluster>${wko.it.okd.cluster}</wko.it.okd.cluster>
+                                <wko.it.ocne.cluster>${wko.it.ocne.cluster}</wko.it.ocne.cluster>
                                 <wko.it.oracle.db.operator.release>${wko.it.oracle.db.operator.release}</wko.it.oracle.db.operator.release>
                                 <wko.it.oraclelinux.test.version>${wko.it.oraclelinux.test.version}</wko.it.oraclelinux.test.version>
                                 <wko.it.wdt.download.url>${wko.it.wdt.download.url}</wko.it.wdt.download.url>

integration-tests/src/test/java/oracle/weblogic/kubernetes/TestConstants.java

@@ -348,6 +348,10 @@ public interface TestConstants {
   public static final boolean OKD =
       Boolean.parseBoolean(getNonEmptySystemProperty("wko.it.okd.cluster", "false"));
 
+  // OCNE constants
+  public static final boolean OCNE =
+      Boolean.parseBoolean(getNonEmptySystemProperty("wko.it.ocne.cluster", "false"));
+
   // default name suffixes
   public String DEFAULT_EXTERNAL_SERVICE_NAME_SUFFIX = "-ext";
   public String DEFAULT_INTROSPECTOR_JOB_NAME_SUFFIX = "-introspector";

integration-tests/src/test/java/oracle/weblogic/kubernetes/extensions/InitializationTasks.java

@@ -57,6 +57,7 @@
 import static oracle.weblogic.kubernetes.TestConstants.MII_BASIC_IMAGE_NAME;
 import static oracle.weblogic.kubernetes.TestConstants.MII_BASIC_IMAGE_TAG;
 import static oracle.weblogic.kubernetes.TestConstants.MII_BASIC_WDT_MODEL_FILE;
+import static oracle.weblogic.kubernetes.TestConstants.OCNE;
 import static oracle.weblogic.kubernetes.TestConstants.OKD;
 import static oracle.weblogic.kubernetes.TestConstants.OKE_CLUSTER;
 import static oracle.weblogic.kubernetes.TestConstants.OPERATOR_CHART_DIR;
@@ -292,7 +293,7 @@ public void beforeAll(ExtensionContext context) {
 
         // set initialization success to true, not counting the istio installation as not all tests use istio
         isInitializationSuccessful = true;
-        if (!OKD) {
+        if ((!OKD && !OCNE) || (OCNE && !assertDoesNotThrow(() -> Namespace.exists("istio-system")))) {
           logger.info("Installing istio before any test suites are run");
           installIstio();
         }
@@ -336,11 +337,11 @@ public void close() {
     if (SKIP_CLEANUP) {
       logger.info("Skipping RESULTS_ROOT clean up after test execution");
     } else {
-      if (!OKD) {
+      if (!OKD && !OCNE) {
         logger.info("Uninstall istio after all test suites are run");
         uninstallIstio();
       }
-      if (!OKD && !OKE_CLUSTER) {
+      if (!OKD && !OKE_CLUSTER && !OCNE) {
         logger.info("Delete istio-system namespace after all test suites are run");
         deleteNamespace("istio-system");
       }
@@ -618,5 +619,4 @@ private OperatorParams installWebHookOnlyOperator() {
         "null" // domainNamespace
     );
   }
-
 }