How to debug terraform

Question

Tunning terraform apply is giving the following error.

╷
│ Error: Missing required argument
│
│ The argument "domain" is required, but was not set.

I searched all my project folders including the files in .terraform folder, but I could not locate that variable.

How do I know which terraform script was giving that error?

Answer 1

1. If you need to enable debug in terraform, add TF_LOG=debug before normal terraform commands in Linux, such as:

   TF_LOG=debug terraform plan
   

2. For your issue, you miss to feed the variable value. Try:

   terraform plan -var domain=xxxx