Fix GoogleCloudPlatform#258 enable mapping when not gcp kubernetes

Author: tkmsaaaam

shared/resourcemapping/src/main/java/com/google/cloud/opentelemetry/resource/ResourceTranslator.java

@@ -153,13 +153,22 @@ public static GcpResource mapResource(Resource resource) {
     switch (platform) {
       case ResourceAttributes.CloudPlatformValues.GCP_COMPUTE_ENGINE:
         return mapBase(resource, "gce_instance", GCE_INSTANCE_LABELS);
-      case ResourceAttributes.CloudPlatformValues.GCP_KUBERNETES_ENGINE:
-        return mapBase(resource, "k8s_container", K8S_CONTAINER_LABELS);
       case ResourceAttributes.CloudPlatformValues.AWS_EC2:
         return mapBase(resource, "aws_ec2_instance", AWS_EC2_INSTANCE_LABELS);
       case ResourceAttributes.CloudPlatformValues.GCP_APP_ENGINE:
         return mapBase(resource, "gae_instance", GOOGLE_CLOUD_APP_ENGINE_INSTANCE_LABELS);
       default:
+        if (resource.getAttribute(ResourceAttributes.K8S_CLUSTER_NAME) != null) {
+          if (resource.getAttribute(ResourceAttributes.K8S_CONTAINER_NAME) != null) {
+            return mapBase(resource, "k8s_container", K8S_CONTAINER_LABELS);
+          } else if (resource.getAttribute(ResourceAttributes.K8S_POD_NAME) != null) {
+            return mapBase(resource, "k8s_pod", K8S_CONTAINER_LABELS);
+          } else if (resource.getAttribute(ResourceAttributes.K8S_NODE_NAME) != null) {
+            return mapBase(resource, "k8s_node", K8S_CONTAINER_LABELS);
+          } else {
+            return mapBase(resource, "k8s_cluster", K8S_CONTAINER_LABELS);
+          }
+        }
         return genericTaskOrNode(resource);
     }
   }