terraform-module-library

Structure the module with main.tf, variables.tf, outputs.tf, and versions.tf files. Add validation blocks for inputs like CIDR blocks, document every variable, expose key attributes as outputs, and include an examples directory plus Terratest tests.

A standard module contains main.tf for resources, variables.tf for inputs, outputs.tf for exported values, versions.tf for provider constraints, a README, an examples/complete directory, and a tests directory with Terratest Go files.

Write a Go test using the gruntwork-io/terratest terraform package. Point TerraformDir at your examples/complete folder, run InitAndApply, assert on outputs like vpc_id, and defer terraform.Destroy to clean up resources.

Yes, it includes OCI module patterns for VCN, OKE, Autonomous Database, Object Storage, and Load Balancer. It recommends OCI provider version ~> 7.26, explicit compartment modeling, NSGs, and least-privilege dynamic groups.

Use semantic versioning, validate inputs with validation blocks, pin provider versions, tag all resources consistently, use count and for_each for conditional resources, and test modules with Terratest before release.