Vendor the external cookbooks

Knife-Zero doesn't include Berkshelf support, so vendoring everything in
the repo is convenient again

cookbooks/apt/recipes/cacher-ng.rb

@@ -0,0 +1,39 @@
+#
+# Cookbook:: apt
+# Recipe:: cacher-ng
+#
+# Copyright:: 2008-2017, Chef Software, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the 'License');
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an 'AS IS' BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+package 'apt-cacher-ng'
+
+directory node['apt']['cacher_dir'] do
+  owner 'apt-cacher-ng'
+  group 'apt-cacher-ng'
+  mode '0755'
+end
+
+template '/etc/apt-cacher-ng/acng.conf' do
+  source 'acng.conf.erb'
+  owner 'root'
+  group 'root'
+  mode '0644'
+  notifies :restart, 'service[apt-cacher-ng]', :immediately
+end
+
+service 'apt-cacher-ng' do
+  supports restart: true, status: false
+  action [:enable, :start]
+end