I’ve written a blog post on using How to Manage Dependencies Between Terraform Resources:
We use infrastructure as code to configure and provision cloud infrastructure, which consists of different resources connected in various ways:
- We set up virtual networks and partition them into multiple subnets.
- We configure network security groups, each with multiple different rules allowing or denying traffic to or from other security groups.
- We provision Kubernetes clusters with associated private container registries, workloads, load balancers, networking, storage, and identities.
- And much more.
The cloud infrastructure that we provision seldom lives in complete isolation. Resources are connected through implicit and explicit dependencies between them.
In Terraform, you can express dependencies between resources in several different ways. In this blog post, we will explore how Terraform resource dependencies work, together with examples and best practices for managing resource dependencies.[^summary]
Read more at spacelift.io/blog/terraform-dependencies
