How do you set a custom path for Terraform Logging via environment variable?

The correct approach to set a custom path for Terraform logging via an environment variable is by using the variable specifically designed for this purpose, which is TF_LOG_FILE. This variable allows you to direct all logging output from Terraform to a specified log file.

When configuring logging in Terraform, TF_LOG is typically used to set the logging level (such as TRACE, DEBUG, INFO, WARN, ERROR) but does not define the output location. In contrast, TF_LOG_FILE is the variable you use to specify the file path where the logs should be written.

Using TF_LOG_FILE=/path/to/my.log directs the detailed logs from Terraform commands to the designated log file at that path. This functionality is particularly useful for debugging and monitoring Terraform operations, as it captures logs that might give insight into the workings and any issues that arise during infrastructure provisioning.

Thus, choosing an option that references TF_LOG_FILE to set a custom logging path is the correct way to configure log file outputs.