Network Firewall with a Policy that Fails Closed
Managed stateful firewall with Suricata rule groups, stateless pre-filters and logging. An empty policy drops rather than passes, and rules evaluate in strict order so "allow these, deny the rest" behaves the way it reads.
Verification
Static-verifiedPassed: validated and lint-clean (provider-schema-validated for AWS/Azure/GCP; Terraform-language lint elsewhere).
Conformance
- Static validation (fmt · validate · tflint)
- Security scan pending (Checkov)
- Plan tests (mocked: validation rules · outputs)
Provenance
- SHA-256 checksum
- Signature (pending)
Functional
- Live test pending (no cloud run yet)
Last verified 2026-09-12 · how we verify
Use it from the registry
terraform · opentofumodule "network_firewall" {
source = "www.iac-bazaar.com/iac-bazaar/aws-network-firewall/aws"
version = "1.0.0"
}Needs a registry token from /account/tokens. The module itself is free; the account is what identifies you. Full setup: registry docs.
Inputs & outputs
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Documentation
aws-network-firewall
Network Firewall with its policy, stateful (Suricata) and stateless rule
groups, and logging. Works with Terraform and OpenTofu (>= 1.6), AWS
provider >= 6.0, < 7.0.
Secure defaults:
- An empty policy fails closed. The stateless default forwards to the
stateful engine, and an empty stateful policy drops. A policy that defaulted
to
aws:passwould look like a working firewall and pass everything STRICT_ORDERby default, so "allow these, drop the rest" is evaluated in the order you wrote it rather than by action precedence- Delete protection and subnet change protection on: deleting a firewall that still has routes pointed at it takes the routes with it
- Suricata rules are passed through verbatim rather than modelled, so the module does not lag the rule syntax
Verification
Static validation runs tofu fmt, init, validate, tflint and checkov.
This module has not yet had a live test, so it is published as statically
validated with its live test pending and does not carry the live-tested mark.
Usage code & full reference need an account
The complete copy-paste usage, the full input/output reference, and operational notes are free with an account - shown here and bundled in the download. Sign in and this section fills in.
- Usage
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