The nutrition information is for the entire recipe ans is a rough estimate. Your final information will depend on the salami you choose. The sugar you see here is due to the lactose in the cream cheese.
These will be roughly 1 carb per-roll-up if your batch makes 16-24 roll ups. For less carbs, use less cream cheese!! You can make these with half the called for cream cheees.
I recommend using Cronometer if you are strict keto to calculate the facts with your specific ingredients.