googleapis · xtineskim · Feb 11, 2022 · Feb 2, 2022 · Feb 7, 2022 · Feb 7, 2022
diff --git a/google-cloud-container/src/test/java/com/google/cloud/container/v1/it/ITSystemTest.java b/google-cloud-container/src/test/java/com/google/cloud/container/v1/it/ITSystemTest.java
@@ -61,6 +61,7 @@ public class ITSystemTest {
   @BeforeClass
   public static void beforeClass() throws Exception {
     client = ClusterManagerClient.create();
+    Util.cleanUpExistingInstanceCluster(PROJECT_ID, ZONE, client);
 
     /** create node pool* */
     NodePool nodePool =

diff --git a/google-cloud-container/src/test/java/com/google/cloud/container/v1/it/Util.java b/google-cloud-container/src/test/java/com/google/cloud/container/v1/it/Util.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.container.v1.it;
+
+import com.google.cloud.container.v1.ClusterManagerClient;
+import com.google.container.v1.Cluster;
+import com.google.container.v1.ListClustersResponse;
+import java.io.IOException;
+import java.time.Instant;
+import java.time.OffsetDateTime;
+import java.time.temporal.ChronoUnit;
+import java.util.List;
+import java.util.concurrent.ExecutionException;
+
+public class Util {
+  // Cleans existing test resources if any.
+  private static final int DELETION_THRESHOLD_TIME_HOURS = 24;
+
+  /** tear down any clusters that are older than 24 hours * */
+  public static void cleanUpExistingInstanceCluster(
+      String projectId, String zone, ClusterManagerClient client)
+      throws IOException, ExecutionException, InterruptedException {
+
+    ListClustersResponse clustersResponse = client.listClusters(projectId, zone);
+    List<Cluster> clusters = clustersResponse.getClustersList();
+
+    for (Cluster cluster : clusters) {
+      if (isCreatedBeforeThresholdTime(cluster.getCreateTime())) {
+        client.deleteCluster(projectId, zone, cluster.getName());
+      }
+    }
+  }
+
+  private static boolean isCreatedBeforeThresholdTime(String timestamp) {
+    return OffsetDateTime.parse(timestamp)
+        .toInstant()
+        .isBefore(Instant.now().minus(DELETION_THRESHOLD_TIME_HOURS, ChronoUnit.HOURS));
+  }
+}