My App Service Linux instance crashes if my node app is using the start script: \"start\": \"pm2 start server.js\":
\"start\": \"pm2 start server.js\"
2019-04-15 11:36:34.432 ERRO
Try adding the application setting PORT with the value of whatever port your app is listening on.
Ref: https://github.com/MicrosoftDocs/azure-docs/issues/34451