01-taint-and-debugging.md

Lab: Taint and Debugging

Help for the VSCode editor.

1. Which environment variable should be used to export the logs to a specific path?

   Refer to the documentation

   Reveal

   TF_LOG_PATH

2. Can you export the debug logs from terraform just by setting TF_LOG_PATH environment variable and providing a path as the value to this variable?

   Refer to the documentation

   Reveal

   `NO'

   This variable sets the path for log files to be written. It has no effect unless TF_LOG is also set.

3. We have a configuration directory called /root/terraform-projects/ProjectA. Enable logging with the log level set to ERROR and then export the logs the path /tmp/ProjectA.log.

   1. Set the environment variables

      Reveal

      cd /root/terraform-projects/ProjectA
      export TF_LOG=ERROR
      export TF_LOG_PATH=/tmp/ProjectA.log

      This variable sets the path for log files to be written. It has no effect unless TF_LOG is also set.

   2. Deploy

      terraform init
      terraform apply
      

4. Which Log Level provides the most details when you run terraform commands?

   Refer to the documentation

   Reveal

   TRACE

5. Now navigate to /root/terraform-projects/ProjectB. We already have a main.tf file created for provisioning an AWS EC2 instance

   Apply the resource

   cd /root/terraform-projects/ProjectB
   terraform init
   terraform apply

6. Now, try running a terraform plan again. What is the effect?

   terraform plan

   Note what will happen from the output of the above

7. Why is the resource called ProjectB being replaced?

   Again, examine the plan output. The reason for replacement will be found there.

   Reveal

   Reource is tainted

8. Untaint the resource called ProjectB so that the resource is not replaced any more.

   Reveal

   terraform untaint aws_instance.ProjectB
   

   You can run terraform plan again the verify.