[chef] chef 0.10.6 and chef_gem

[Jesse Campbell < >]

well chef_gem didn't exist in 0.10.6, but we haven't upgraded yet, and
i'm running into a problem...

I want to do something like this:

gem_package "f5-icontrol" do
  source "#{Chef::Config[:file_cache_path]}/f5-icontrol-10.2.0.2.gem"
end

require 'f5-icontrol'

But I get an error... f5-icontrol cannot be included by the recipe,
because it isn't installed yet... it isn't installed yet because the
recipe requires... you get the idea.

Is there a chef 0.10.6 way of doing this? the docs say to do it with chef_gem.

thanks!