Squashed 'chef-repo/cookbooks/iptables/' content from commit 15ab6d6

git-subtree-dir: chef-repo/cookbooks/iptables
git-subtree-split: 15ab6d62744baa91ab0f88b9f72623f4b5d1c062
Merge commit '73b6ce0b740fdaa0397617dc5f901d37da0e7fdd' as 'chef-repo/cookbooks/iptables'