Cheat Sheet - Terraform

Enable debug logging

export TF_LOG='DEBUG'

String interpolation

"Hello, ${var.name}"

Multiline string

<<EOT
hello
world
EOT

AzureRM & authentication

• Use Azure CLI when running Terraform locally
• Use service principal or managed identity when running non-interactively

Assigning values to root module variables

• Individually, with the -var command line option (plan, apply)
  • -var=key=value
• In variable definitions (.tfvars) files, either specified on the command line or automatically loaded.
• As environment variables.