Thank you, Leooel
Very simple. One 54" tomato case and two pieces 1/2" or 3/4"electrical EMT from Lowe's or Home Depot. Cutting the 10-ft EMT in half. Two pieces 3/4" or 1" plastc PVC, 3-ft long. I put the plastic pot inside the clay pot. Later if the top of your dragon fruit is too heavy, you can add rock to the pot to counter weight. I like to train my DF in a shape like an umbrella in early stage.
Good luck