CloudFormation - Principal Block

CloudFormation - Resources Block

Docs and Source

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Explanation and Notes

Principal

This property can be set within a resource to indicate who can or cannot have access to something.

So for example, when I created an IAM role for admin endpoints this property can be used for setting specific users/groups that have the ability to set themselves as that IAM role. In our case, as we were unsure of what it will be used for we set it as * so that anyone can have that role.

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