Install xpack for elastic 5.3.2

elastic-search/Dockerfile

@@ -2,6 +2,8 @@ ARG IMAGE_NAME
 ARG IMAGE_VERSION
 FROM ${IMAGE_NAME}:${IMAGE_VERSION}
 
+RUN bin/elasticsearch-plugin install x-pack
+
 ADD elasticsearch.yml /usr/share/elasticsearch/config/
 
 USER root

elastic-search/run.sh

@@ -42,12 +42,16 @@ init() {
 	__ask_to_start
 }
 
-release() {
+build() {
         docker build \
                 --build-arg IMAGE_NAME=${IMAGE_NAME} \
                 --build-arg IMAGE_VERSION=${IMAGE_VERSION} \
                 -t ${RELEASE_NAME}:${RELEASE_VERSION} \
                 ${SCRIPT_PATH}
+}
+
+release() {
+	build
 
 	docker push ${RELEASE_NAME}:${RELEASE_VERSION}