Docker not able to identify default-address-pool

Question

I'm following this guide to configure docker-compose to use it on a different range by default:https://github.com/moby/moby/pull/29376

But this comes up:

unable to configure the Docker doker daemon with file /etc/docker/daemon.json: the following directives don't match any configuration option: default-address-pools

this is daemon.json file taken from the same repo

{
  "default-address-pools": [
    {
      "scope": "local",
      "base": "172.80.0.0/16",
      "size": 24
    },
    {
      "scope": "global",
      "base": "172.90.0.0/16",
      "size": 24
    }
  ]
}

This is my setup

# uname -a
Linux gfn-classroom 4.4.0-109-generic #132-Ubuntu SMP Tue Jan 9 19:52:39 UTC 
2018 x86_64 x86_64 x86_64 GNU/Linux

# docker --version
Docker version 17.12.0-ce, build c97c6d6

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 16.04.3 LTS
Release:        16.04
Codename:       xenial

Answer 1

the pull request was not merged. it was closed. This feature is not available in docker yet.

Answer 2

The pull request is merged in https://github.com/moby/moby/pull/36396 and hopefully will be available in 18.06