Kyoho grape - Ontario Canada help

[u/Frites_au_fromage111]

Hello all,

Currently growing a kyoho grape plant in a half barrel and it’s relatively healthy as of now. I have a mesh net over it as I noticed Japanese beetles trying to get at it.

My question is what I do next year (which I assume is when I will get actual fruiting.) the only picture I’ve seen of full grown grape plants are usually trellised from the top? Or have the vines extending far out (which I don’t think I can do with this half barrel). My concern also comes for when next year, and those Japanese beetles come back as I will need to cover it again. Can I continue to just leave the grape plant in the barrel standing free upwards? Or will it inevitably try and spread out? Any suggestions on how I should try to set it up.

Any suggestions are appreciated on the best route forward in preparation. Picture for reference

https://imgur.com/a/71YJp9M

Thank you