IaC Bazaar
LinodeStatic-verified

Linode Cloud Firewall Baseline

Opinionated stateful firewall with deny-by-default inbound, curated allow rules, and multi-device attachment.

terraformAlt & Specialty Clouds#linode
linode-firewallterraform v1.7

Verification

Static-verified

Passed: validated and lint-clean (provider-schema-validated for AWS/Azure/GCP; Terraform-language lint elsewhere).

Conformance

  • Static validation (fmt · validate · tflint)
  • Security scan clean (Checkov)
  • Plan tests (mocked: validation rules · outputs)

Provenance

Functional

  • Live test pending (no cloud run yet)

Last verified 2026-06-28 · how we verify

Verify this download

cosign · sha-256

Don't take our word for it. Every release is signed with cosign - check the bytes against our pinned public key before you trust them.

# 1. Our pinned public key - fetch once, trust out-of-band
curl -O https://www.iac-bazaar.com/cosign.pub

# 2. This module's Sigstore bundle
curl -o linode-firewall-1.0.0.sigstore.json \
  https://www.iac-bazaar.com/api/artifacts/linode-firewall/signature

# 3. Verify the tarball you downloaded
cosign verify-blob \
  --key cosign.pub \
  --bundle linode-firewall-1.0.0.sigstore.json \
  linode-firewall-1.0.0.tar.gz
# → Verified OK

# 4. (optional) confirm the checksum too
echo "c26ed6bda28563fb335f01d10f17ff8c11573f1de48447861d01371d2d812510  linode-firewall-1.0.0.tar.gz" | sha256sum -c
Signature bundlePublic keyMachine-readable receiptHow we verify

Use it from the registry

terraform · opentofu
module "firewall" {
  source  = "www.iac-bazaar.com/iac-bazaar/linode-firewall/linode"
  version = "1.0.0"
}

Paid module — needs a purchase (or a subscription that covers it) plus a registry token from /account/tokens. Full setup: registry docs.

Inputs & outputs

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Documentation

linode-firewall

Opinionated stateful Linode Cloud Firewall: deny-by-default inbound, curated named allow-rule presets, and multi-device attachment. Works with Terraform and OpenTofu (>= 1.6), Linode provider >= 3.14, < 4.0.

Secure defaults:

  • inbound_policy = "DROP" — nothing is reachable unless you allow it
  • 23 curated presets (ssh, https, postgres, redis, k8s-api, wireguard, ping, ...) with the right protocol/ports baked in
  • Every rule — preset or custom — must declare explicit source CIDRs; there is no silent 0.0.0.0/0 default
  • Attachment via linode_firewall_device, so instances and NodeBalancers can be added or removed without touching rule definitions

Requirements

  • Terraform or OpenTofu >= 1.6
  • linode/linode provider >= 3.14, < 4.0
  • Cloud Firewall is a free Linode service.

Note: with the default inbound_policy = "DROP" and no presets, an attached instance accepts no inbound traffic at all — add at least an ssh preset scoped to your management CIDR before attaching.

License

Commercial — IaC Bazaar EULA. © IaC Bazaar. Original work (not derived from a third-party module).

Usage code & full reference unlock after purchase

The complete copy-paste usage, the full input/output reference, and operational notes ship with your licence - shown here and bundled in the download.

  • Usage
  • Inputs
  • Outputs