Question

You maintain a reusable networking module that must deploy resources into a secondary AWS region. In the root module you have configured a default AWS provider and an aliased provider named `aws.secondary`. You want the child module to use the aliased provider for all of its resources. What is the correct way to pass this provider configuration to the module?

Accepted Answer

Add a `providers` argument to the module block mapping the child's `aws` to `aws.secondary`, and declare the requirement with a `configuration_aliases` entry in the child module's `required_providers`.

Answer

Define the aliased provider block a second time inside the child module so it inherits automatically at apply time.

Answer

Set an input variable in the child module equal to `aws.secondary` and reference that variable in each resource's `provider` argument.

Answer

Do nothing; a child module always inherits all aliased provider configurations from the root module automatically.