With something like Heroku, you can have multiple VM's in staging and production, w/ a deployment pipeline that supports rollbacks, monitoring, alerting, autosc

With something like Heroku, you can have multiple VM's in staging and production, w/ a deployment pipeline that supports rollbacks, monitoring, alerting, autoscaling, all in a managed environment w/ a managed, highly available Postgres setup, with very little effort and 0 maintenance. This is what I've setup at my current startup. My last company was on K8's and I loved it -- but this is nearly as good and requires literally no maintenance and _far_ less expertise / setup.