enable pushing of events-server-web docker image

modules/events-server-web/docker/Dockerfile

@@ -0,0 +1,22 @@
+FROM openjdk:11
+ARG KAFKATORIO_VERSION
+ARG DIST_DIR="../build/distributions/"
+ARG APP_NAME="events-server-web"
+
+WORKDIR /app
+
+ENV WEB_SERVER_PORT=80
+EXPOSE $WEB_SERVER_PORT
+
+ENV SERVER_DATA_DIR="/app/data"
+ENV KAFKA_STREAMS_STATE_DIR="/app/state/kafka"
+
+VOLUME ${SERVER_DATA_DIR} \
+       ${KAFKA_STREAMS_STATE_DIR}
+
+COPY ${DIST_DIR}/${APP_NAME}-${KAFKATORIO_VERSION}.tar ${APP_NAME}.tar
+
+RUN tar -xf ${APP_NAME}.tar --strip-components=1 \
+ && rm ${APP_NAME}.tar
+
+ENTRYPOINT /app/bin/${APP_NAME}