Docker Containers and Signals
Here be dragons. I know from personal experience but Hynek Schlawack explains why way better than me.
Proper cleanup when terminating your application isn’t less important when it’s running inside of a Docker container. Although it only comes down to making sure signals reach your application and handling them, there’s a bunch of things that can go wrong.
Really, as Hynek says, “Avoid being PID 1.”