Because of its very aggressively spreading nature, in a container is the ONLY way I'd consider growing mint!!

It is no different from growing just anything else in a container long term. You want a fast draining potting soil with a fair amount of durability, an ability to water easily as frequently as necessary, sun to part shade and the occasional spritz with a water soluble fertilizer.

If in a colder climate, you will want someplace to keep the containered mint over winter without freezing.

What Pam said.

I bet a friend I could keep mint looking neat in a pot. I won $5. 4 different kinds: