How can I list all environment variables configured in Terraform?

Question

I configured AWS provider in Terraform by providing an access key and secret as environment variables according to the documentation:

$ export AWS_ACCESS_KEY_ID="anaccesskey"
$ export AWS_SECRET_ACCESS_KEY="asecretkey"

I now want to view those variables on the console as well as other environment variables configured on my system but I can't find the right command.

Update: I found out that I didn't configure the AWS provider like I thought. The AWS CLI was already configured with my credentials stored in AWS credentials file: ~/.aws/credentials.

Answer 1

On your command line, run printenv

Reference: https://man7.org/linux/man-pages/man1/printenv.1.html

Answer 2

Your current shell environment variables, which are also including terraform-related ones can be listed by env command or you can do it in tf file:

terraform {
  required_version = ">= 0.12.0"
}

resource "null_resource" "get_tf_env" {
  provisioner "local-exec" {
    command = "env"
    interpreter = ["bash", "-c"]
  }
}

According to official docs you can only feed terraform with the envs starting with TF_*.

Answer 3

printenv | grep TF_VAR will list all variables that you defined.