I am putting up an IP camera on my front porch, using Wifi for data and an extension cord to a nearby outdoor power outlet. I have put the power cord into a cheap round 3/4" plastic conduit. The conduit has an adhesive backing on it. It turns out the conduit's instructions to "use only on a smooth surface" were words of wisdom, because after a day of adhering to my brick wall, it fell off (almost taking the camera with it). So I'm looking for a more permanent solution than tape, but less permanent/damaging than epoxy or screws. I want to be able to move the conduit in case I move the camera (which has a DIY movable magnetic mount which nevertheless was able to hold up the camera, the power cord, and the conduit :P).
According to https://www.hunker.com/12003687/what-adheres-to-brick my best option may be hot glue (which I figure can be peeled off the brick), but I figured I'd ask here for more options.