Restart the server automatically when it fails

Dockerfile

 
 RUN touch /usr/bin/start.sh # this is the script which will run on start
 
-# if you need a build script, uncomment the line below
-# RUN echo 'sh mybuild.sh' >> /usr/bin/start.sh
-
-# if you need redis, uncomment the lines below
-# RUN apk --update add redis
-# RUN echo 'redis-server &' >> /usr/bin/start.sh
-
-# daemon for cron jobs
-# RUN echo 'echo will install crond...' >> /usr/bin/start.sh
-# RUN echo 'crond' >> /usr/bin/start.sh
-
-# Basic npm start verification
-RUN echo 'nb=`cat package.json | grep start | wc -l` && if test "$nb" = "0" ; then echo "*** Boot issue: No start command found in your package.json in the scripts. See https://docs.npmjs.com/cli/start" ; exit 1 ; fi' >> /usr/bin/start.sh
-
 RUN echo 'npm install --production' >> /usr/bin/start.sh
-
-# npm start, make sure to have a start attribute in "scripts" in package.json
-RUN echo 'npm start' >> /usr/bin/start.sh
+RUN echo 'npx forever --minUptime 7000 --spinSleepTime 2000 -o out.log -e err.log ./server/server.js' >> /usr/bin/start.sh
 
 CMD ["/bin/sh","/usr/bin/start.sh"]

package.json

    "version": "1.0.22",
    "license": "AGPL-3.0-or-later",
    "dependencies": {
+      "forever": "^0.15.3",
       "handlebars": "^4.1.1",
       "node-static": "0.7.x",
       "socket.io": "^2.2.0"