Best way to grow potatoes in a container for a continuous supply.

https://www.gardeningknowhow.com/edible/vegetables/potato/container-potatoes.htm

That potatoes have a "heart beat" and are picky about what plants they're paired with. Potatoes have been grown all over the world and in some of the least favorable soils. So, using a good top soil is heaven for them. Don't over-water, plastic is fine as long as there are drain holes and plant different varies in separate containers. Any potato - even ones from the grocery store - can be planted. If you want exotics, order on line. Below is a site for problems. Good luck.

Potato Pests and Diseases - Garden.org

Part depends on your climate and growing season. Successive plantings are the way to go so you continually have potatoes to harvest. I personally do not grow edibles in plastic, but that is just me and my very hot climate. I leave in ground until I want them, but I am in Southern California with no basement or root cellar and my ground does not freeze and humidity here is typically less than 20% (summer it hovers around 10%.)

These sites will provide general tips and I am sure hard core potato growers will have excellent info for you too.

https://irisheyesgardenseeds.com/potatoes-growing-guide/

http://tipnut.com/grow-potatoes/

https://www.growveg.com/guides/how-to-successfully-grow-potatoes-in-containers/

https://www.gardeningknowhow.com/edible/vegetables/potato/container-potatoes.htm

Try this site. I have never tried to do this, but after finding this site, I must may give it a go. Sounds easy

I know there was a project here on home talk about using containers to grow potatoes. Potatoes don't provide potatoes year round.