Theterraform plancommand does not update the state file. Instead, it reads the current state and the configuration files to determine what changes would be made to bring the real-world infrastructure into the desired state defined in the configuration. The plan operation is a read-only operation and does not modify the state or the infrastructure. It is theterraform applycommand that actually applies changes and updates the state file.References= Terraform's official guidelines and documentation clarify the purpose of theterraform plancommand, highlighting its role in preparing and showing an execution plan without making any changes to the actual state or infrastructure .

This is the Terraform style convention for indenting a nesting level compared to the one above it. The other options are not consistent with the Terraform style guide.