This one is easy. All you need to tame it is to shoot it down with a boa launcher in the tail so it can't fly, let it fall into a valley that it cannot escape from, bring it fish every day, and finally touch it on the nose. It will be your lifelong friend after that. Just don't trust it to save your leg in a battle with another dragon, you will literally have no leg after that and will need to learn the peg leg engram(does not exist, but should!).
Bring along Daenerys Stormborn of the House Targaryen, First of Her Name, the Unburnt, Queen of the Andals and the First Men, Khaleesi of the Great Grass Sea, Breaker of Chains, and Mother of Dragons, and you'll probably be okay.
Don't spawn in a bunch if you have admin commands, our entire tek base got covered in dragons so we had to kill them all and since we Insta killed them their bodies exploded (glitch exploded) and all you could see from one side of the island to the other was thousands of stretched dragon bodies. We had many people come to the admin store with questions that day. Worst part was that I was currently on my shift at the admin store at the time, so I had to answer the questions. Long story short: they hella big so don't go spawning in an army.