+ENV LANG C.UTF-8
+
+#install java-1.8-openjdk
+
+# add a simple script that can auto-detect the appropriate JAVA_HOME value
+# based on whether the JDK or only the JRE is installed
+RUN { \
+ echo '#!/bin/sh'; \
+ echo 'set -e'; \
+ echo; \
+ echo 'dirname "$(dirname "$(readlink -f "$(which javac || which java)")")"'; \
+ } > /usr/local/bin/docker-java-home \
+ && chmod +x /usr/local/bin/docker-java-home
+ENV JAVA_HOME /usr/lib/jvm/java-1.8-openjdk
+ENV PATH $PATH:/usr/lib/jvm/java-1.8-openjdk/jre/bin:/usr/lib/jvm/java-1.8-openjdk/bin
+
+ENV JAVA_ALPINE_VERSION 8.171.11-r0
+
+RUN set -x \
+ && apk add --no-cache \
+ openjdk8="$JAVA_ALPINE_VERSION" \
+ && [ "$JAVA_HOME" = "$(docker-java-home)" ]
+
+#install neccessary tools
+RUN apk upgrade \
+ && apk update \
+ && apk add --no-cache curl \
+ && apk add --no-cache postgresql-client=10.5-r0
+
+#add the frontend pacakge to the docker images
+RUN rm /etc/nginx/conf.d/default.conf
+ADD holmes-rulemgt-frontend-*.tar.gz /usr/local/openresty/nginx/html
+ADD nginx.conf /usr/local/openresty/nginx/conf
+
+#add the backend package to the docker image