How to change hosts in Docker for Windows in daemon json

Question

I'm trying to change daemon.json on Docker for Windows "hosts": [] settings:

{
  "hosts": [
    "tcp://0.0.0.0",
    "http://0.0.0.0"
  ]
}

But I get this error:

Docker daemon failed with message: 
unable to configure the Docker daemon with file C:\ProgramData\docker\config\daemon.json: 
the following directives are specified both as a flag and in the
configuration file: 
hosts: (from flag: [npipe:////./pipe/docker_engine_windows], 
from file: [tcp://0.0.0.0 http://0.0.0.0])

Answer 1

you cannot specify options both as a flag and in the configuration file (daemon.json).
If you change your DOCKER_OPTS to DOCKER_OPTS="" and restart, then it should work. We explicitly don't "merge" these configurations.