Add script to verify image hashes

dev/check-hashes.sh

@@ -0,0 +1,33 @@
+# Copyright 2020 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.
+
+#!/bin/bash
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+SHA=`crane manifest gcr.io/distroless/base-debian10:latest-amd64 | sha256sum | cut -f 1 -d ' '`
+(bazel query --noshow_progress @distroless-base-amd64//image --output build | grep ${SHA} > /dev/null 2>&1) || (echo "distroless-base-amd64 should be ${SHA}" && exit 1)
+
+SHA=`crane manifest gcr.io/distroless/base-debian10:debug-amd64 | sha256sum | cut -f 1 -d ' '`
+(bazel query --noshow_progress @distroless-base-amd64-debug//image --output build | grep ${SHA} > /dev/null 2>&1) || (echo "distroless-base-amd64-debug should be ${SHA}" && exit 1)
+
+SHA=`crane manifest gcr.io/distroless/base-debian10:latest-arm64 | sha256sum | cut -f 1 -d ' '`
+(bazel query --noshow_progress @distroless-base-arm64//image --output build | grep ${SHA} > /dev/null 2>&1) || (echo "distroless-base-arm64 should be ${SHA}" && exit 1)
+
+SHA=`crane manifest gcr.io/distroless/base-debian10:debug-arm64 | sha256sum | cut -f 1 -d ' '`
+(bazel query --noshow_progress @distroless-base-arm64-debug//image --output build | grep ${SHA} > /dev/null 2>&1) || (echo "distroless-base-arm64-debug should be ${SHA}" && exit 1)
+
+echo "Verified!"