Anyone have any good resources for deploying a reframe app with docker?

we use inject-cofx when we want a random uuid. i'd like n - will this work? will this accomplish purity?

(rf/reg-cofx
 ::make-uuid
 (fn [coeffects _]
   (assoc coeffects :make-uuid random-uuid)))

in a testing context i could inject any random-uuid - such as a deterministic fn