Depend on the same docker version everywhere
Depend on the same docker version everywhere

The dependency in the Berksfile has been set to '>= 0.25.0', but the
metadata dependency hasn't which makes Chef pick the old version
(0.24.2). This causes deployments to fail due to the 'source' method
being unavailable

fgrehm/chef-dokku,fgrehm/chef-dokku