Architecture · Intermediate · 50 minutes
Resource Relationships & Dependencies
Read Terraform references as a dependency graph and learn when Terraform can infer order for you.
What you will learn
- Read resource addresses and attributes.
- Distinguish implicit and explicit dependencies.
- Avoid unnecessary depends_on declarations.
Course lessons
- References and attributes
Read Terraform addresses with confidence.
Lesson 1: References and attributes
- Implicit dependencies
Let direct references describe creation order.
Lesson 2: Implicit dependencies
- When to use depends_on
Add an explicit dependency only when Terraform cannot see one.
Lesson 3: When to use depends_on
- Debugging dependency cycles
Break loops by redesigning the relationship.
Lesson 4: Debugging dependency cycles