Ravi Sir's Cards › AWS
Tags and cost allocation
This revision card explains Tags and cost allocation. It starts from the need that finOps cannot explain a bill when EC2 and RDS have no owner tags. It describes default_tags on the AWS provider and resource tags mark env, owner, and project for Cost Explorer. The how-to section covers how to set provider default_tags { Environment = "lab", Owner = "training" }; override per resource when needed. An example on the card is cost Explorer group-by tag Environment shows lab vs prod spend.
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What this card says
Why do we need it?
FinOps cannot explain a bill when EC2 and RDS have no owner tags.
What is it?
default_tags on the AWS provider and resource tags mark env, owner, and project for Cost Explorer.
default_tags
How to do it
Set provider default_tags { Environment = "lab", Owner = "training" }; override per resource when needed.
Example
Cost Explorer group-by tag Environment shows lab vs prod spend.