why doesn’t springboot work on aws elasticbeanstalk?

This was problem in our java spring application. Wrong devel configuration. In application.properties was this line

logging.file.name=log/synchronization.log

I didn’t notice that at first sight. In application-production.properties wasn’t anything about logging therefore this configuration affected production, and all logs was written to this file (wrong path because on aws eb(tomcat) is directory for logging logs/ not log/). That’s why I cannot see logs on standard log path less /var/log/tomcat/

I changed in application-production.properties to

logging.file.name=logs/my-app.log

and that is. It works now.