3ofcoins/chef-cookbook-hostname — pull request #2 by sjaq (2013-02-07 15:09:29+00:00)
Title: Fix Chef::Exceptions::ImmutableAttributeModification

> Node attributes are read-only when you do not specify which precedence level to set. To set an attribute use code like `node.default["key"] = "value"'

Do exactly that to make this cookbook work on chef 11.0.0