I see that you configured NO_PROXY even though you haven't set any HTTP_PROXY/HTTPS_PROXY.
This is not needed. I tried to reproduce this issue with adding this to my configuration and do a cdsw reset/cdsw init but it didn't cause any problems for me. Regardless, I think it's worth trying to remove this and redo the cdsw reset/cdsw init again.
So the docker pull gcr.io/google_containers/pause-amd64:3.0 times out for you. Can you even reach the gcr.io site? Could you try to ping it?
$ ping gcr.io