Print error when APIServer fails to start

hack/update-openapi-spec.sh

@@ -53,6 +53,7 @@ ETCD_HOST=${ETCD_HOST:-127.0.0.1}
 ETCD_PORT=${ETCD_PORT:-2379}
 API_PORT=${API_PORT:-8050}
 API_HOST=${API_HOST:-127.0.0.1}
+API_LOGFILE=${API_LOGFILE:-/tmp/openapi-api-server.log}
 
 kube::etcd::start
 
@@ -71,10 +72,16 @@ kube::log::status "Starting kube-apiserver"
   --token-auth-file=$TMP_DIR/tokenauth.csv \
   --logtostderr \
   --v=2 \
-  --service-cluster-ip-range="10.0.0.0/24" >/tmp/openapi-api-server.log 2>&1 &
+  --service-cluster-ip-range="10.0.0.0/24" >"${API_LOGFILE}" 2>&1 &
 APISERVER_PID=$!
 
-kube::util::wait_for_url "${API_HOST}:${API_PORT}/healthz" "apiserver: "
+if ! kube::util::wait_for_url "${API_HOST}:${API_PORT}/healthz" "apiserver: "; then
+  kube::log::error "Here are the last 10 lines from kube-apiserver (${API_LOGFILE})"
+  kube::log::error "=== BEGIN OF LOG ==="
+  tail -10 "${API_LOGFILE}" || :
+  kube::log::error "=== END OF LOG ==="
+  exit 1
+fi
 
 kube::log::status "Updating " ${OPENAPI_ROOT_DIR}
 

hack/update-swagger-spec.sh

@@ -58,7 +58,7 @@ ETCD_HOST=${ETCD_HOST:-127.0.0.1}
 ETCD_PORT=${ETCD_PORT:-2379}
 API_PORT=${API_PORT:-8050}
 API_HOST=${API_HOST:-127.0.0.1}
-API_LOGFILE=/tmp/swagger-api-server.log
+API_LOGFILE=${API_LOGFILE:-/tmp/swagger-api-server.log}
 
 kube::etcd::start