Terraform allows you to define variable files called *.tfvars to create a reusable file for all of your variables for a project. The following is an example that covers all of the required variables to run the majority of the Terraform examples in this repository. When a particular module does not use a variable, you see the following error, though you can ignore it.
You may still define environmental variables. These exported values will override any of the variables set in both the variables.tf file as well as the terraform.tfvars file.
│ Warning: Value for undeclared variable
│
│ The root module does not declare a variable named "operator_role_prefix" but a value was found in file
│ "terraform.tfvars". If you meant to use this value, add a "variable" block to the configuration.
│
│ To silence these warnings, use TF_VAR_... environment variables to provide certain "global" settings to all configurations in your organization. To
│ reduce the verbosity of these warnings, use the -compact-warnings option.
╵
The following example should serve as a basis for your own *.tfvars files. You can create multiple versions of this file, and then, apply and destroy using this file with the -var-file= flag.
NOTE: The
tokenvalue in this example requires you to generate an offline OCM token. You can do that in the Red Hat Hybrid Cloud console.
This example only includes the variables needed for creating your account-wide roles and creating cluster with a managed OIC configuration. You can also add the needed variables for creating your identity provider and machine pools to this file.
account_role_prefix = "<user-prefix>"
availability_zones = ["<az-within-cloud-region>"]
cloud_region = "<aws-cloud-region>"
cluster_name = "<name-of-cluster>"
operator_role_prefix = "<user-prefix>
token = "<ocm-offline-token>"
url = "<url-of-environment"
- See the Terraform documentation for more information on Terraform variables.