Add script validation for Terraform

hack/verify-terraform.sh

@@ -0,0 +1,65 @@
+#!/usr/bin/env bash
+# Copyright 2021 The Kubernetes Authors.
+#
+# 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.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+function usage() {
+  echo >&2 "Usage: $0 <CLUSTER_NAME>"
+  exit 1
+}
+
+function check_terraform() {
+  if [ $# != 1 ]; then
+    echo "check_terraform(path) requires 1 argument" >&2
+    exit 1
+  fi
+
+  if [ ! -d "$1" ]; then
+    echo "path not found"
+    exit 1
+  fi
+
+  cd "$1"
+  echo "Installing Terraform"
+  tfswitch
+  echo "Running terraform validate"
+  terraform init -backend=false
+  terraform validate
+}
+
+
+if [ $# != 1 ]; then
+    usage
+    exit 1
+fi
+
+if [ -z "$(which curl)" ]; then
+  echo "Please install curl"
+  exit 1
+fi
+
+
+if [ -z "$(which tfswitch)" ]; then
+  echo "Installing tfswitch locally"
+  curl -L https://raw.githubusercontent.com/warrensbox/terraform-switcher/release/install.sh | sudo bash
+else
+tfswitch --version
+fi
+
+check_terraform "${DIR}/../$1"