Operational Rules Catalog
The Operational Rules documented on this site. Each one is applied during terraform init. No forks, no wrapper modules.
Adds prevent_destroy = true to data-bearing resources. Blocks accidental deletion of S3 buckets, RDS instances, Aurora clusters, DynamoDB tables, EFS file systems, and ElastiCache replication groups.
Adds ignore_changes for tags and tags_all on all resources. Prevents Terraform from reverting tags managed by AWS Config, Service Catalog, or external automation.
Adds ignore_changes for the tag keys your organization names, and nothing else. Silences a scanner's or inventory agent's tag while every other tag stays managed.
Adds ignore_changes for read_capacity and write_capacity on DynamoDB tables. Prevents Terraform from reverting autoscaler adjustments on every plan.
Adds ignore_changes for the ami and image_id attributes on EC2 instances and launch templates. Prevents Terraform from forcing instance replacement when an AMI lookup resolves to a newer image.
Adds prevent_destroy = true to encryption key resources. Protects KMS keys and Secrets Manager secrets from accidental deletion.
Removes all provisioner blocks from all resources. Provisioners bypass the declarative model and introduce hidden side effects.
Adds a validation block to the module's region variable, so a region outside your organization's allowlist is rejected before anything is created.
Denies GPU and specialty EC2 instance types (p3, p4, x1, x2, u-*). Prevents surprise compute bills from expensive instance families.
How rules are applied
Rules are applied server-side during terraform init, at the same time as compliance controls. The downloaded module is standard Terraform HCL with the rule transformations already in place. See How rules work for the full flow.
Configuring rules for your organization
Org admins group the organization's rules into a Baseline that applies to every module and named rulesets a module selects with ?ruleset=. See Baseline rules and rulesets for the model and the Getting Started guide for setup.