Add support for config ui

Dockerfile

@@ -13,13 +13,14 @@ ENV PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium-browser
 ENV NODE_ENV production
 ENV ACCEPT_HIGHCHARTS_LICENSE="YES"
 
-RUN npm i -g highcharts-export-server@latest
+RUN npm i -g @cubetiq/highcharts-export-server@latest
 
 WORKDIR /usr/share/fonts/truetype
 ADD fonts/* ./
 RUN fc-cache -fv
 
 WORKDIR /
+ADD entrypoint.sh /entrypoint.sh
 
-EXPOSE 8080
-ENTRYPOINT ["highcharts-export-server", "--enableServer", "1", "--port", "8080"]
+EXPOSE ${PORT:-8080}
+ENTRYPOINT ["/entrypoint.sh"]