Terraform - Remediating State Drift on TeamCity CI/CD Pipeline

Today, when I worked on building a TeamCity pipeline in an effort to automate the Akamai Terraform state drift remediation. The pipeline is designed to work as follows:

1. It contructs all the terraform import commands to import existing Akamai network lists into a Terraform state. This is part of the onboarding process for the network list to be managed via Terraform.
2. It runs step 1 again to sync the Terraform state with the out of band changes introduced via Akamai Control Center (Web GUI)

However, step 2 failed and threw the following error:

Error: Resource already managed by Terraform

Terraform is already managing a remote object for akamai_networklist_network_list.network_lists["<Network List Name>"]. To import this address you must first remove the existing object from the state.

I found the article Detecting and Remediating State Drift in Terraform that explains clearly how the terraform state rm helps resolve this error. Basically, I modified the pipeline to work as follows:

1. I introduced a new pipepline parameter called is.config.sync. If it is set to true meaning the onboarding has been done and the Terraform state exists, then the pipeline needs to perform the Terraform state sync. If it is set to false, the pipeline just needs to perform the onboarding by creating a new Terraform state.
2. In the case that is.config.sync=true, it contructs all the terraform state rm commands and puts them into script staterm.sh to remove existing Akamai network list resources from the Terraform state. This is to fix the eror Error: Resource already managed by Terraform.
3. In the both cases meaning is.config.sync=false or is.config.sync=true, it contructs all the terraform import commands and puts them into script import.sh to import or re-import existing Akamai network lists into the Terraform state. This is completed exactly the same for both the onboarding and state sync scenarios.

   if [ %is.config.sync% = "true" ]; then
    printf "\n\nREMOVING EXISTING NETWORK LIST STATE...\n"
    ./staterm.sh
   fi
   printf "\n\nRE/IMPORTING NETWORK LIST STATE...\n"
   ./import.sh