Adding back in override variables file which is needed by default

infra/templates/osdu-r3-mvp/service_resources/override.tfvars

+//  Copyright © Microsoft Corporation
+//
+//  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.
+
+/*
+.Synopsis
+   Terraform Variable Override Template
+.DESCRIPTION
+   This file holds a variable override sample to be used by pipelines
+*/
+
+/*
+
+prefix = "osdu-mvp"
+
+resource_tags = {
+  environment = "OSDU Demo"
+}
+
+# Kubernetes Settings
+kubernetes_version = "1.18.8"
+aks_agent_vm_size  = "Standard_E4s_v3"
+aks_agent_vm_count = "5"
+subnet_aks_prefix  = "10.10.2.0/23"
+
+*/