create an elb with --single and --database

redeploy with username option set, does it change?

Does strapi work with a databse set in production mode?

SSH into EC2 - check if its using sqlite

deocument that the db has to be done from cli arg, but the configs can be done via files.

SSL? https://levelup.gitconnected.com/beginners-guide-to-aws-beanstalk-using-node-js-d061bb4b8755

Add postgres to strapi
Add the S3 bucket to strapi

If doesnt work, try installing yarn in the ELB instance