docker: Error response from daemon: Get https://registry-1.docker.io/v2/: Service Unavailable. IN DOCKER , MAC

Question

I am having this issue in my Mac system 10.11.6

system3:postgres saurabh-gupta2$ docker build -t postgres .
Sending build context to Docker daemon  38.91kB
Step          


        

Answer 1

Got this from a network filter (LuLu on macOS) blocking traffic to/from Docker-related processes.