Enable conformance requirement check

hack/verify-conformance-requirements.sh

+#!/usr/bin/env bash
+
+# Copyright 2019 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
+
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
+source "${KUBE_ROOT}/hack/lib/init.sh"
+source "${KUBE_ROOT}/hack/lib/util.sh"
+
+kube::golang::verify_go_version
+
+cd "${KUBE_ROOT}"
+
+errors=()
+# Check conformance tests follow the requirements as https://git.k8s.io/community/contributors/devel/sig-architecture/conformance-tests.md#conformance-test-requirements
+if ! failedLint=$(go run "${KUBE_ROOT}"/hack/conformance/check_conformance_test_requirements.go "${KUBE_ROOT}"/test/e2e/)
+then
+  errors+=( "${failedLint}" )
+fi
+
+# Check to be sure all the packages that should pass lint are.
+if [ ${#errors[@]} -eq 0 ]; then
+  echo 'Congratulations!  All e2e test source files have been linted for conformance requirements.'
+else
+  {
+    echo "Errors from lint:"
+    for err in "${errors[@]}"; do
+      echo "$err"
+    done
+    echo
+    echo 'Please review the above warnings.'
+    echo
+  } >&2
+  exit 1
+fi
+