I wanted to use docker-compose to run nginx and expose port 80 on my localhost but I ran into an error that port 80 was already in use.
When I looked further I saw
vpnkit using it:
$ sudo lsof -i -n -P | grep TCP | grep vpnkit
vpnkit 25u IPv4 0x.... 0t0 TCP *:80 (LISTEN)
A tiny bit of googling says that vpnkit is used by docker. As an experiment, I shut off the docker beta on mac ... then ofcourse the port becomes available again ... Hurray ... but now: No docker!
What to do? Can I tell vpnkit to use a different port?