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(Update) CD FAQ Terraform env #11587

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8 changes: 8 additions & 0 deletions kb/continuous-delivery/faqs.md
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Expand Up @@ -1856,6 +1856,14 @@ Yes, The infrastructure key is generated by combining the serviceIdentifier, env

To activate debug logging for the Terraform Plan step, include the environment variable ```TF_LOG=debug``` in the Advanced tab of your Terraform Plan step.

#### What are some useful Terraform Environment Variables commonly used by customers
Environment Variables allow customers to modify some properties of their Terraform executions in Terraform steps. Some common useful commands include:

`TF_CLI_ARGS_init="-var-file=<pathToVarFiles>"` - In utilizing TFC as a remote backend, cusomters may need this option to specify the environment where Terraform will provision resources. This will help refer to the config that should be used on init.https://support.hashicorp.com/hc/en-us/articles/4408532630675-HCP-Terraform-How-to-set-remote-backend-partial-configuration-to-manage-different-environments-with-Terraform-Cloud
`TF_LOG=debug` - Set log to "debug" output. Other options include "trace" or "off" https://developer.hashicorp.com/terraform/internals/debugging#set-the-tf_log-variable


For other Environment VARs, [please visit Terraform's website](https://developer.hashicorp.com/terraform/cli/config/environment-variables)

#### How is infra key formed for deployments.

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