Ho Geoff, I don't have Ceoliac but I am allergic to wheat. I have to read every label - spices and spice blends are often cut with flour as an anti caking / bulking agent.
The easiest takeaway (sorry) from my experiences is to read all labels, and to equip yourself with the names of things derived from gluten containing grains.
There's also the issue of "cross reactions" to things which do not contain gluten, but still trigger the immune system response as if they were. This is a huge subject that I cannot give any advice on, it's just something I have read about.
So long as you make your own spice blends, from whole spices, and use a dedicated grinder that is only ever used to grind whole spices, you should be able to avoid triggering any health nasties for the Ceoliac in your life.
Good luck.