Any potted plant will be restricted to it's size by the pot size. Figs do well in pots but like any potted tree it has to be trimmed. A 30 gallon pot of Coco Chior 1/4 to 1/2" cube potting mix is the best that I have found to grow trees. I have seen 100 gallon pots grow full size citrus trees.
Celeste figs( sweetest and my favorite) can grow to gigantic size so choose a smaller tree like brown turkey , Alma or LSU purple. The LSU purple takes three to four years to produce really sweet fruit.
headfullofbees
Fig trees limbs after a long period of time can touch the ground and sprout new shoots. I had a celeste do this at 20 years old so if container grown this would not be a problem
gatorgardener
My advise to you is to plant the fig in the ground and just trim it to the size you want. Figs recover quickly from pruning.
pollination, Figs have internal flowers within the fruit. The inside of the fig has everything it needs to produce fertile fig seeds.