Merge "Add kustomize install script"

tools/install_kustomize.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+# 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 -xe
+
+echo "Installing kustomize"
+kustomize_version=v3.8.5
+kustomize_download_url="https://github.com/kubernetes-sigs/kustomize/releases/download/kustomize/${kustomize_version}/kustomize_${kustomize_version}_linux_amd64.tar.gz"
+curl -sSL "$kustomize_download_url" | tar -C /tmp -xzf -
+sudo install /tmp/kustomize /usr/local/bin