Ok, so the dev who knows 5 languages, a bit about database, git and sysadmin has been hired to do one job. On this job, one must learn the entire stack, including docker, in a few months, while still reaching the deadline.

The dev won't be paid more.

The company won't spend more resources.

Time is short, talent scarce, customers in a hurry.

What do you think will happen?

This is the software industry in a nutshell.