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Get the list of AWS API actions required to run terraform

Terraform uses AWS APIs to modify infrastructure. To find out a set of minimal IAM policies required for tf apply to run, we can follow this approach:

  • Give full permissions to your IAM user.
  • Run TF_LOG=trace terraform apply --auto-approve &> log.log
  • Run cat log.log | grep "DEBUG: Request"

Sometimes, the error message isn't clear by Terraform Provider. In that case, the following command helps:

grep 'HTTP/1.1 403' -C 5 log.log

Delete all resources in a state

terraform state list | cut -f 1 -d '[' | xargs -L 1 terraform state rm