infra/stacks/crowdsec/main.tf
Viktor Barzin a5bb4db9c5
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crowdsec: register the Traefik bouncer with LAPI (fix fail-open)
The Traefik bouncer plugin's API key was never registered with LAPI — the
crowdsec stack reads many keys from Vault but not ingress_crowdsec_api_key, and
the chart registers no bouncer. So LAPI returned 403 to the plugin, which with
updateMaxFailure=-1 failed open and enforced NOTHING: no community-blocklist
bans, and the (now-Turnstile-wired) captcha never fired. cscli bouncers list was
empty; the registration was likely lost in the MySQL->PostgreSQL DB migration
with no IaC to recreate it.

Seed the bouncer at LAPI startup via BOUNCER_KEY_traefik, valued from the same
Vault key the middleware presents — so they match by construction, and the
bouncer re-registers automatically on every LAPI start (survives DB wipes).

- stacks/crowdsec/main.tf: read ingress_crowdsec_api_key, pass to module.
- module main.tf: new sensitive var + thread into the values templatefile.
- values.yaml: BOUNCER_KEY_traefik on lapi.env.
- docs/architecture/security.md: document registration + fail-open history and
  the proxied-app coverage caveat.

Activates enforcement (community blocklist bans + captcha) on non-proxied apps;
internal IPs stay bypassed (clientTrustedIPs), fail-open-on-LAPI-down preserved.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-19 17:08:28 +00:00

35 lines
1.8 KiB
HCL

# =============================================================================
# CrowdSec Stack — Security/WAF
# =============================================================================
variable "tls_secret_name" { type = string }
variable "mysql_host" { type = string }
variable "postgresql_host" { type = string }
data "vault_kv_secret_v2" "secrets" {
mount = "secret"
name = "platform"
}
locals {
homepage_credentials = jsondecode(data.vault_kv_secret_v2.secrets.data["homepage_credentials"])
}
module "crowdsec" {
source = "./modules/crowdsec"
tier = local.tiers.cluster
tls_secret_name = var.tls_secret_name
mysql_host = var.mysql_host
postgresql_host = var.postgresql_host
homepage_username = local.homepage_credentials["crowdsec"]["username"]
homepage_password = local.homepage_credentials["crowdsec"]["password"]
enroll_key = data.vault_kv_secret_v2.secrets.data["crowdsec_enroll_key"]
db_password = data.vault_kv_secret_v2.secrets.data["crowdsec_db_password"]
crowdsec_dash_api_key = data.vault_kv_secret_v2.secrets.data["crowdsec_dash_api_key"]
crowdsec_dash_machine_id = data.vault_kv_secret_v2.secrets.data["crowdsec_dash_machine_id"]
crowdsec_dash_machine_password = data.vault_kv_secret_v2.secrets.data["crowdsec_dash_machine_password"]
slack_webhook_url = data.vault_kv_secret_v2.secrets.data["alertmanager_slack_api_url"]
# Same key the traefik-stack bouncer middleware uses — seeded into LAPI so the
# bouncer authenticates and pulls decisions (was unregistered → 403 → fail-open).
ingress_bouncer_key = data.vault_kv_secret_v2.secrets.data["ingress_crowdsec_api_key"]
}