This is a good point. You can keep the database storage in another container, or linked in the root filesystem. How do you upgrade the database usually? You ca

This is a good point. You can keep the database storage in another container, or linked in the root filesystem. How do you upgrade the database usually? You can also do it the same way. Not saying it really solves all the problems, just that it solves some of them. Lots of people go years without upgrading the database that "shipped" with their application! As well, I know of many enterprise applications that literally ship with an entire _server_ as their method of production. You literally buy a server! Containers seem better than that. They definitely aren't to be used for everything. I wouldn't use them in your situation at all - but they work well for many other things.