Michael, give this a read until someone answers you: https://ecommons.cornell.edu/bitstream/handle/1813/67/Cornell_Guide_to_Growing_Fruit.pdf Has some good info.

Cut it back to one

or two buds

on a single cane.

Ben, 1 or 2 buds per the 3 canes I have?

No. You only have the young main cane so far so do no pruning this year. You might plan your support which is usually 2 or 3 lateral wires onto which you can train vines, 2-3 to one side and 2-3 to the opposite side. Next year you should be able to select those laterals and prune all others to 2 buds per vine coming from those laterals. The height of the lateral lines may vary but you might try 30", 50" and 70" from the ground.

ok barrie! So let all the buds grow and just add the support lines?

Yes, for this year. As you are partially doing, keep that main vine growing vertically and at the 70" line it could branch to either side. Buds will form into many branches this year. You can use zip ties, etc to fasten the branches to save before pruning other branches to Just 2 buds. You should have a huge amount of pruning to do next Spring.

oh so the main cane will continue to grow upward? should i get some grapes this year?

The cane will very likely set fruit but in my opinion you should pinch off all but a few this year so that the plant resources are directed to growth. You should be able to tell in a few weeks where the developing bunches are located.

Ah ok, I am moving for residency next year in june, so I would ideally like to get some fruit before I move!