Fitting wooden gate - Drilling concrete fence post

[aspirated]

Hi

So my driveway is approx. 6 feet wide, with a wall of the house on one side, and fencing with concrete fence posts on the other.

I want to fit a wooden gate, and the wall-side is straightforward enough. I’ve researched drilling concrete fence posts too, and it seems doable.

I just wanted to see if anyone with more experience has any advice. Will the concrete fence post remain stable if I drill a few holes to attach a timber post to it?
Also, would it be better/possible to instead fit a side hinged bi folding wooden gate to the wall side of the drive?

Thanks in advance