problem description
  deploying spark on kubernetes  requires at least 3 CPU. Using the kubernetes feature of docker will cause an error  1 Insufficient cpu, 1 Insufficient memory . 
the environmental background of the problems and what methods you have tried
The kubernetes of mac for docker cannot start the program; if you use  minikube , you can set the CPU of virtual box to 4 so that the program runs correctly. 
what do you want to know
how does the kubernetes function of docker for mac set the number of CPU and memory?
