[chef] Using normal attributes to track version changes

["Cerny,Nathan" < >]

I am wanting to use normal attributes to track version changes of installed software across chef-client runs.  This would give us the ability to trigger special logic on a downgrade/upgrade/rerun scenario.

For instance, if we install php 5.3, then change the attribute to php 5.5, I want the recipe to either trigger special upgrade logic or error as the situation requires.

Has anyone gone down this path before?  Are there snags or gotchya's I should watch out for?  Is it a completely insane path?

Thanks!

Nathan Cerny

System Architect, Operations Infrastructure - Population Health Dev

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