Add verify-docker-build to pre-submit tests

hack/verify-all.sh

@@ -83,6 +83,12 @@ if [[ "${VERIFY_BUILD:-true}" == "true" ]]; then
   cd "${REPO_PATH}"
 fi
 
+if [[ "${VERIFY_DOCKER_BUILD:-true}" == "true" ]]; then
+  echo "[*] Verifying capd-manager docker image build..."
+  hack/verify-docker-build.sh || res=1
+  cd "${REPO_PATH}"
+fi
+
 # exit based on verify scripts
 if [[ "${res}" = 0 ]]; then
   echo ""

hack/verify-docker-build.sh

@@ -0,0 +1,45 @@
+#!/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
+
+# shellcheck source=/dev/null
+source "$(dirname "$0")/utils.sh"
+
+# check if manager docker image builds
+cd_root_path
+
+# DEBUG CODE BEGIN
+service docker start
+# the service can be started but the docker socket not ready, wait for ready
+WAIT_N=0
+MAX_WAIT=5
+while true; do
+    # docker ps -q should only work if the daemon is ready
+    docker ps -q > /dev/null 2>&1 && break
+    if [[ ${WAIT_N} -lt ${MAX_WAIT} ]]; then
+        WAIT_N=$((WAIT_N+1))
+        echo "Waiting for docker to be ready, sleeping for ${WAIT_N} seconds."
+        sleep ${WAIT_N}
+    else
+        echo "Reached maximum attempts, not waiting any longer..."
+        break
+    fi
+done
+# DEBUG CODE END
+
+docker build --file Dockerfile -t capd-manager:pr-verify .