Terraform, Terragrunt

how to install?

# macOS

# Terraform env manager
$ brew install tfenv

# Terragrunt env manager
$ brew install tgenv

how to roll back after terrafrom deploy(apply)?

• git tags,

• taint option - official docs - Forcing Re-creation of Resources

where the status saving after apply?

when local save

basically terraform.tfstate

you can check use command terraform state list

when remote save

terraform {
  backend "s3" {
    bucket         = "my-terraform-state"
    key            = "path/to/my/terraform.tfstate"
    region         = "us-west-2"
    dynamodb_table = "terraform-lock-table"
  }
}