Update resources to support Chef 12.5 and 12.6

[iennae]

Description

Fix cookbook resources to support Chef 12.5 and 12.6

Issues Resolved

Issue #147

Check List

• All tests pass. See https://github.com/chef-cookbooks/community_cookbook_documentation/blob/master/TESTING.MD
• New functionality includes testing.
• New functionality has been documented in the README if applicable
• All commits have been signed for the Developer Certificate of Origin. See https://github.com/chef-cookbooks/community_cookbook_documentation/blob/master/CONTRIBUTING.MD

[scotthain]

@chef-cookbooks/engineering-services

Thank you so much!!

[schisamo]

Once Travis is happy.

[wrightp]

The class_eval appears to only be needed for 12.5 and 12.6. I'm guessing this is the preferred workaround which I don't particularly like. We can get this merged to fix the issue for now, but I will probably fix this so we don't class_eval 12.7+.

Please fix linting error and merge. Thank you for helping getting this along.

[wrightp]

Fauxhai!!! More to fix apparently.

[schisamo]

Are these platforms or platform families? If it's the former we need to add:

• centos
• freebsd
• mac_os_x
• solaris2
• ubuntu

If it's the latter then we need to figure out how to represent these platforms as platform families. This cookbook essentially should support everything Chef supports.

[wrightp]

I was just trying to satisfy the error for the moment. Not the final solution.

[wrightp]

I like the metadata "supports" rule, but let's deal with this later. There is still the task of migrating the omnitruck platform mapping to mixlib-install which will remove the OmnitruckHandler. That sounds like a good time to add the supported list of platforms.