reconcile host cluster (#2354)

print friendly error when component failed

update dockerfile

hack/gobuild.sh

@@ -20,6 +20,9 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
+source "${KUBE_ROOT}/hack/lib/init.sh"
+
 VERBOSE=${VERBOSE:-"0"}
 V=""
 if [[ "${VERBOSE}" == "1" ]];then
@@ -33,13 +36,13 @@ OUTPUT_DIR=bin
 BUILDPATH=./${1:?"path to build"}
 OUT=${OUTPUT_DIR}/${1:?"output path"}
 
-set -e
-
 BUILD_GOOS=${GOOS:-linux}
 BUILD_GOARCH=${GOARCH:-amd64}
 GOBINARY=${GOBINARY:-go}
+LDFLAGS=$(kube::version::ldflags)
 
 # forgoing -i (incremental build) because it will be deprecated by tool chain.
 time GOOS=${BUILD_GOOS} CGO_ENABLED=0 GOARCH=${BUILD_GOARCH} ${GOBINARY} build \
+        -ldflags="${LDFLAGS}" \
         -o ${OUT} \
         ${BUILDPATH}