How does Terraform manage most dependencies between resources?

How does Terraform manage most dependencies between resources?

• A. By defining dependencies as modules and including them in a particular order
• B. The order that resources appear in Terraform configuration indicates dependencies
• C. Using the depends_on parameter
• D. Terraform will automatically manage most resource dependencies

Answer: (D)

Terraform automatically determines most dependencies by building a dependency graph from how resources reference each other's attributes. When a resource uses the ID or other attributes of another resource, Terraform infers that the dependent resource must wait for the one it references to be created or updated. This lets Terraform plan and apply in the correct order and often run independent resources in parallel to speed things up. If a dependency isn’t obvious from references, you can add an explicit dependency with depends_on, but for most cases Terraform handles dependencies automatically.

Terraform automatically determines most dependencies by building a dependency graph from how resources reference each other's attributes. When a resource uses the ID or other attributes of another resource, Terraform infers that the dependent resource must wait for the one it references to be created or updated. This lets Terraform plan and apply in the correct order and often run independent resources in parallel to speed things up. If a dependency isn’t obvious from references, you can add an explicit dependency with depends_on, but for most cases Terraform handles dependencies automatically.