Ravi Sir's Cards › AWS
CloudFormation deep basics
This revision card explains CloudFormation deep basics. It starts from the need that console clicks drift; you need repeatable stacks for VPC, IAM, and apps. It describes cloudFormation is AWS-native IaC — templates declare resources; stacks create/update/delete them as a unit. The how-to section notes write YAML/JSON , then create stack , then watch events , then use change sets before risky updates. An example on the card is a nested stack deploys a shared VPC module used by three app stacks.
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What this card says
Why do we need it?
Console clicks drift; you need repeatable stacks for VPC, IAM, and apps.
What is it?
CloudFormation is AWS-native IaC: templates declare resources; stacks create/update/delete them as a unit.
stack
How to do it
Write YAML/JSON → create stack → watch events → use change sets before risky updates.
Example
A nested stack deploys a shared VPC module used by three app stacks.