[Enhancement] Support for encrypted databags

[ClaesGIS]

Idea

To further improve this cookbook I would like to be able to use encrypted data bags to store sensitive information. To name a few:

• server['admin_password']
• server['keystore_password']
• portal['security_question'] & portal['security_question_answer']

Ideas for implementation

• Specify the bag name and key as an attribute
• Specify the location of the shared secret
• Perhaps do something with environments

Edit: Keep in mind I might be wrong about how data bags should be used.

[tsmalls93]

I agree. The current documentation suggests storing credentials in plain text is okay, but it is actually really insecure.

[slootsky]

agreed. This would be very useful for our environment as well.