deploy goldmane-edge-aggregator: durable who-talks-to-whom edge trail (#58, ADR-0014)
Infra side of ADR-0014: an mTLS gRPC consumer of Calico Goldmane's Flows API that records the namespace-pair edge-set in CNPG and posts a daily new-edge digest to #security. Adds the goldmane-edge-aggregator stack, the pg-goldmane-edges Vault rotation role (Tier-0 vault state updated here), and the namespace in the ghcr-credentials allowlist. Cert: REUSES the operator-minted, Tigera-CA-signed whisker-backend client cert (Goldmane verifies only the CA chain, not identity) instead of minting from the Tigera CA private key. This avoids putting the CA key in TF state AND the hashicorp/tls provider, which is incompatible with this repo's global generate-providers/lockfile pattern (it broke every stack's lockfile). Verified live: aggregator streaming flows, 174 edges in Postgres across 50x54 namespaces, db+slack ExternalSecrets synced, digest dry-run formats correctly, private image pulls via the Kyverno-synced ghcr-credentials. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Viktor Barzin
parent
8dd9a3978d
commit
a7704f46a6
5 changed files with 2819 additions and 2257 deletions
488
stacks/goldmane-edge-aggregator/main.tf
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488
stacks/goldmane-edge-aggregator/main.tf
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# =============================================================================
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# goldmane-edge-aggregator — durable who-talks-to-whom audit trail (ADR-0014 / #58)
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# =============================================================================
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# A small Go service that streams Calico Goldmane's gRPC Flows API (mTLS) and
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# upserts the unique service-to-service edge set into Postgres, plus a daily
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# Slack digest CronJob of first-seen edges. Code lives in the standalone
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# `goldmane-edge-aggregator` repo; the authoritative deploy spec is its
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# DEPLOY.md. This stack is the infra side of that spec.
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#
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# Goldmane runs as `Service goldmane:7443` (gRPC/mTLS) in calico-system, enabled
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# via the operator CR in stacks/calico/main.tf. The durable Loki path is NOT
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# the operator CRs — this service IS the durable trail.
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#
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# Structure mirrors stacks/claude-memory (the canonical Tier-1 pattern): a
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# per-service namespace, a CNPG Postgres DB + role + Vault 7-day rotation +
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# ExternalSecret -> DATABASE_URL, the Reloader annotation, and the
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# Terragrunt-generated backend.tf/providers.tf/tiers.tf layout. The novel bit is
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# minting an mTLS client cert from the Tigera CA (hashicorp/tls; see versions.tf).
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#
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# IMAGE: ghcr.io/viktorbarzin/goldmane-edge-aggregator is PRIVATE. Onboarding
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# MUST add the "goldmane-edge-aggregator" namespace to the ghcr-credentials
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# Kyverno allowlist (stacks/kyverno/modules/kyverno/ghcr-credentials.tf,
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# local.ghcr_private_namespaces) so the Kyverno-synced `ghcr-credentials` secret
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# is cloned into this namespace — otherwise the pulls 401. The imagePullSecrets
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# reference below assumes that entry exists.
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# =============================================================================
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variable "postgresql_host" { type = string }
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# Plan-time root creds for the idempotent DB-init Job (mirrors claude-memory).
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data "vault_kv_secret_v2" "secrets" {
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mount = "secret"
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name = "goldmane-edge-aggregator"
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}
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# -----------------------------------------------------------------------------
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# 1. Namespace
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# -----------------------------------------------------------------------------
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resource "kubernetes_namespace" "goldmane_edge_aggregator" {
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metadata {
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name = "goldmane-edge-aggregator"
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labels = {
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name = "goldmane-edge-aggregator"
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# Tier 4-aux: a small off-path consumer service, like claude-memory.
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tier = local.tiers.aux
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"keel.sh/enrolled" = "true"
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}
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}
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lifecycle {
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# KYVERNO_LIFECYCLE_V1: goldilocks-vpa-auto-mode ClusterPolicy stamps this label on every namespace
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ignore_changes = [metadata[0].labels["goldilocks.fairwinds.com/vpa-update-mode"]]
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}
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}
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# -----------------------------------------------------------------------------
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# 2. Goldmane mTLS client certificate (minted from the Tigera CA)
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# -----------------------------------------------------------------------------
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# The aggregator dials goldmane:7443 over mutual TLS. We mint a client cert
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# signed by the Tigera CA (the same CA that issues Goldmane's serving cert), so
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# Goldmane requires mutual TLS on :7443 and verifies the client cert chains to
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# the Tigera CA — it does NOT authorize by client identity, so ANY Tigera-CA-
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# signed cert is accepted. Rather than copy the Tigera CA PRIVATE KEY into TF
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# state to mint our own (a needless CA-key exposure; the hashicorp/tls provider
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# is also incompatible with this repo's global generate-providers/lockfile
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# pattern), we REUSE the operator-minted, Tigera-CA-signed client cert
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# `whisker-backend-key-pair` (calico-system). We never touch the CA key.
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# Trade-off: if the operator rotates that cert, re-apply to re-sync (hardening
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# follow-up: mint an own-identity cert in-namespace if Whisker is ever removed).
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data "kubernetes_secret" "whisker_backend" {
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metadata {
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name = "whisker-backend-key-pair"
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namespace = "calico-system"
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}
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}
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# The CA bundle that verifies Goldmane's serving cert. It lives ONLY in
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# calico-system (verified: ConfigMap `tigera-ca-bundle`, 2 keys present —
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# `ca-bundle.crt` AND `tigera-ca-bundle.crt`, both the trusted bundle). We read
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# it and recreate it as a ConfigMap in this namespace so the pod can mount it
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# (a ConfigMap cannot be cross-namespace-mounted).
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data "kubernetes_config_map" "tigera_ca_bundle" {
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metadata {
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name = "tigera-ca-bundle"
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namespace = "calico-system"
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}
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}
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resource "kubernetes_config_map" "tigera_ca_bundle" {
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metadata {
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name = "tigera-ca-bundle"
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namespace = kubernetes_namespace.goldmane_edge_aggregator.metadata[0].name
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}
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# Copy the upstream bundle verbatim. We mount the `tigera-ca-bundle.crt` key
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# at /etc/tigera-ca/tigera-ca-bundle.crt so the service's default
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# CA_CERT_PATH (/etc/tigera-ca/tigera-ca-bundle.crt) resolves with no override.
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data = data.kubernetes_config_map.tigera_ca_bundle.data
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}
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# Client cert + key for mTLS to goldmane:7443, mounted at TLS_CERT_PATH /
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# TLS_KEY_PATH defaults (/etc/goldmane-client-tls/tls.crt and .../tls.key).
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# Sourced verbatim from the operator's whisker-backend client key-pair (read
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# above) — already Tigera-CA-signed, which is all Goldmane verifies. No CA key
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# is touched and no cross-namespace CA RBAC is needed.
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resource "kubernetes_secret" "goldmane_client_tls" {
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metadata {
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name = "goldmane-client-tls"
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namespace = kubernetes_namespace.goldmane_edge_aggregator.metadata[0].name
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}
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type = "Opaque"
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data = {
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"tls.crt" = data.kubernetes_secret.whisker_backend.data["tls.crt"]
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"tls.key" = data.kubernetes_secret.whisker_backend.data["tls.key"]
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}
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}
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# -----------------------------------------------------------------------------
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# 3. Postgres: DB + role `goldmane_edges`, Vault 7-day rotation, DATABASE_URL
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# -----------------------------------------------------------------------------
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# Idempotent create of the role + DB using the CNPG root creds from Vault
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# (dbaas_root_password), exactly mirroring claude-memory's db_init Job. The
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# service creates the `edge` table itself at startup (migrations/0001_edge.sql),
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# so no migration Job is needed.
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resource "kubernetes_job" "db_init" {
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metadata {
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name = "goldmane-edges-db-init"
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namespace = kubernetes_namespace.goldmane_edge_aggregator.metadata[0].name
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}
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spec {
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template {
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metadata {}
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spec {
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container {
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name = "db-init"
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image = "postgres:16-alpine"
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command = [
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"sh", "-c",
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<<-EOT
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set -e
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# -d postgres: psql defaults the database name to the username;
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# the root user has no root-named database, so be explicit.
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PGPASSWORD='${data.vault_kv_secret_v2.secrets.data["dbaas_root_password"]}' psql -h ${var.postgresql_host} -U root -d postgres -tc "SELECT 1 FROM pg_roles WHERE rolname='goldmane_edges'" | grep -q 1 || \
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PGPASSWORD='${data.vault_kv_secret_v2.secrets.data["dbaas_root_password"]}' psql -h ${var.postgresql_host} -U root -d postgres -c "CREATE ROLE goldmane_edges WITH LOGIN PASSWORD '${data.vault_kv_secret_v2.secrets.data["db_password"]}'"
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PGPASSWORD='${data.vault_kv_secret_v2.secrets.data["dbaas_root_password"]}' psql -h ${var.postgresql_host} -U root -d postgres -tc "SELECT 1 FROM pg_database WHERE datname='goldmane_edges'" | grep -q 1 || \
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PGPASSWORD='${data.vault_kv_secret_v2.secrets.data["dbaas_root_password"]}' psql -h ${var.postgresql_host} -U root -d postgres -c "CREATE DATABASE goldmane_edges OWNER goldmane_edges"
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PGPASSWORD='${data.vault_kv_secret_v2.secrets.data["dbaas_root_password"]}' psql -h ${var.postgresql_host} -U root -d postgres -c "GRANT ALL PRIVILEGES ON DATABASE goldmane_edges TO goldmane_edges"
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echo "Database init complete"
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EOT
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]
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}
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restart_policy = "Never"
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}
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}
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backoff_limit = 3
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}
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wait_for_completion = true
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timeouts {
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create = "2m"
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}
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lifecycle {
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# KYVERNO_LIFECYCLE_V1: Kyverno injects dns_config (ndots=2); ignore it so
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# this idempotent Job isn't replaced (Jobs are immutable) on every apply.
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ignore_changes = [spec[0].template[0].spec[0].dns_config]
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}
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}
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# ExternalSecret projecting the Vault-rotated (7-day) credential into a K8s
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# Secret as DATABASE_URL. The Vault DB static role `pg-goldmane-edges` and its
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# place in the CNPG connection allowlist are added in stacks/vault/main.tf
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# (see this stack's terragrunt.hcl note). remoteRef key: static-creds/pg-goldmane-edges.
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resource "kubernetes_manifest" "db_external_secret" {
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manifest = {
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apiVersion = "external-secrets.io/v1"
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kind = "ExternalSecret"
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metadata = {
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name = "goldmane-edges-db-creds"
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namespace = kubernetes_namespace.goldmane_edge_aggregator.metadata[0].name
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}
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spec = {
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refreshInterval = "15m"
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secretStoreRef = {
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name = "vault-database"
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kind = "ClusterSecretStore"
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}
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target = {
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name = "goldmane-edges-db-creds"
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template = {
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data = {
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DATABASE_URL = "postgresql://goldmane_edges:{{ .password }}@${var.postgresql_host}:5432/goldmane_edges"
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}
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}
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}
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data = [{
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secretKey = "password"
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remoteRef = {
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key = "static-creds/pg-goldmane-edges"
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property = "password"
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}
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}]
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}
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}
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depends_on = [kubernetes_namespace.goldmane_edge_aggregator]
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}
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# -----------------------------------------------------------------------------
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# 4. Slack webhook (reuse the alert-digest incoming webhook)
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# -----------------------------------------------------------------------------
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# The monitoring alert-digest CronJob posts with the Slack incoming webhook at
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# Vault secret/monitoring -> key `alertmanager_slack_api_url`
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# (stacks/monitoring/modules/monitoring/alert_digest.tf). Project that same URL
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# into this namespace as SLACK_WEBHOOK_URL via an ExternalSecret (no new
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# webhook). The digest CronJob defaults to #security.
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resource "kubernetes_manifest" "slack_external_secret" {
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manifest = {
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apiVersion = "external-secrets.io/v1"
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kind = "ExternalSecret"
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metadata = {
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name = "goldmane-edges-slack"
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namespace = kubernetes_namespace.goldmane_edge_aggregator.metadata[0].name
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}
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spec = {
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refreshInterval = "1h"
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secretStoreRef = {
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name = "vault-kv"
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kind = "ClusterSecretStore"
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}
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target = {
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name = "goldmane-edges-slack"
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}
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data = [{
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secretKey = "SLACK_WEBHOOK_URL"
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remoteRef = {
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key = "viktor"
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property = "alertmanager_slack_api_url"
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}
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}]
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}
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}
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depends_on = [kubernetes_namespace.goldmane_edge_aggregator]
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}
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# -----------------------------------------------------------------------------
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# 5. aggregate — Deployment (long-running gRPC stream -> Postgres upserts)
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# -----------------------------------------------------------------------------
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resource "kubernetes_deployment" "aggregate" {
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depends_on = [
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kubernetes_job.db_init,
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kubernetes_manifest.db_external_secret,
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]
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metadata {
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name = "goldmane-edge-aggregator"
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namespace = kubernetes_namespace.goldmane_edge_aggregator.metadata[0].name
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labels = {
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app = "goldmane-edge-aggregator"
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tier = local.tiers.aux
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}
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annotations = {
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# Credential is env-injected and read only at startup; the 7-day rotation
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# must bounce the pod or it keeps the stale password and silently fails
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# DB auth (infra CLAUDE.md Reloader rule).
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"secret.reloader.stakater.com/reload" = "goldmane-edges-db-creds"
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}
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}
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spec {
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# 1 replica: the edge set is a global upsert keyed on (src_ns, dst_ns,
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# action); a second replica only doubles writes for no benefit (Goldmane
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# streams per-flow). Stateless (no PVC) so RollingUpdate is fine.
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replicas = 1
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selector {
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match_labels = {
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app = "goldmane-edge-aggregator"
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}
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}
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template {
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metadata {
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labels = {
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app = "goldmane-edge-aggregator"
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}
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}
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spec {
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# PRIVATE ghcr image — cloned into this namespace by the Kyverno
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# sync-ghcr-credentials allowlist policy (add this ns to that list).
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image_pull_secrets {
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name = "ghcr-credentials"
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}
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container {
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name = "aggregate"
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# CI (GHA -> ghcr) overwrites this to :<sha8> via `kubectl set image`;
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# the image tag is in ignore_changes below so the SHA sticks across
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# `terragrunt apply` (fleet image-pin convention). Placeholder :latest
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# until the deploy pipeline runs.
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image = "ghcr.io/viktorbarzin/goldmane-edge-aggregator:latest"
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args = ["aggregate"]
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# Goldmane mTLS. GOLDMANE_HOST default host sans port =>
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# ServerName "goldmane.calico-system.svc.cluster.local", which is a SAN
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# on the live Goldmane serving cert (verified 2026-06-24:
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# DNS:goldmane{,.calico-system{,.svc{,.cluster.local}}}). So no
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# GOLDMANE_SERVER_NAME override and no GOLDMANE_TLS_INSECURE needed.
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env {
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name = "GOLDMANE_HOST"
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value = "goldmane.calico-system.svc.cluster.local:7443"
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}
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# TLS_CERT_PATH / TLS_KEY_PATH / CA_CERT_PATH are left at their image
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# defaults (/etc/goldmane-client-tls/tls.{crt,key} and
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# /etc/tigera-ca/tigera-ca-bundle.crt) — the mounts below match them.
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env {
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name = "DATABASE_URL"
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value_from {
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secret_key_ref {
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name = "goldmane-edges-db-creds"
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key = "DATABASE_URL"
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}
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}
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}
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volume_mount {
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name = "goldmane-client-tls"
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mount_path = "/etc/goldmane-client-tls"
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read_only = true
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}
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volume_mount {
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name = "tigera-ca"
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mount_path = "/etc/tigera-ca"
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read_only = true
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}
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resources {
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# Idles low: a single gRPC stream + periodic upserts. requests=limits
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# per the repo memory rule; no CPU limit (CFS throttling). Right-size
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# later with krr.
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requests = {
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cpu = "10m"
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memory = "64Mi"
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}
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limits = {
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memory = "64Mi"
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}
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}
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}
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volume {
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name = "goldmane-client-tls"
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secret {
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secret_name = kubernetes_secret.goldmane_client_tls.metadata[0].name
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}
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}
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volume {
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name = "tigera-ca"
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config_map {
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name = kubernetes_config_map.tigera_ca_bundle.metadata[0].name
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}
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}
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}
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}
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}
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lifecycle {
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ignore_changes = [
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# CI pipeline owns the image tag (kubectl set image from GHA/Woodpecker).
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spec[0].template[0].spec[0].container[0].image,
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spec[0].template[0].spec[0].dns_config, # KYVERNO_LIFECYCLE_V1: Kyverno admission webhook mutates dns_config with ndots=2
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metadata[0].annotations["keel.sh/policy"],
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metadata[0].annotations["keel.sh/trigger"],
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metadata[0].annotations["keel.sh/pollSchedule"], # KYVERNO_LIFECYCLE_V2
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metadata[0].annotations["keel.sh/match-tag"],
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metadata[0].annotations["kubernetes.io/change-cause"],
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metadata[0].annotations["deployment.kubernetes.io/revision"],
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spec[0].template[0].metadata[0].annotations["keel.sh/update-time"], # KEEL_LIFECYCLE_V1
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]
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}
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}
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# -----------------------------------------------------------------------------
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# 6. digest — daily CronJob (first-seen edges -> Slack)
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# -----------------------------------------------------------------------------
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resource "kubernetes_cron_job_v1" "digest" {
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depends_on = [
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kubernetes_job.db_init,
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kubernetes_manifest.db_external_secret,
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kubernetes_manifest.slack_external_secret,
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]
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metadata {
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name = "goldmane-edges-digest"
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namespace = kubernetes_namespace.goldmane_edge_aggregator.metadata[0].name
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labels = {
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app = "goldmane-edge-aggregator"
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tier = local.tiers.aux
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||||
}
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||||
}
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spec {
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# Daily 08:00 Europe/London — aligns with the alert-digest cadence.
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||||
schedule = "0 8 * * *"
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timezone = "Europe/London"
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||||
concurrency_policy = "Forbid"
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successful_jobs_history_limit = 3
|
||||
failed_jobs_history_limit = 3
|
||||
starting_deadline_seconds = 600
|
||||
|
||||
job_template {
|
||||
metadata {
|
||||
labels = {
|
||||
app = "goldmane-edge-aggregator"
|
||||
}
|
||||
annotations = {
|
||||
# 7-day DB rotation: bounce the Job pod's stale env (Reloader rule).
|
||||
"secret.reloader.stakater.com/reload" = "goldmane-edges-db-creds"
|
||||
}
|
||||
}
|
||||
spec {
|
||||
backoff_limit = 2
|
||||
active_deadline_seconds = 300
|
||||
ttl_seconds_after_finished = 86400
|
||||
|
||||
template {
|
||||
metadata {
|
||||
labels = {
|
||||
app = "goldmane-edge-aggregator"
|
||||
}
|
||||
}
|
||||
spec {
|
||||
restart_policy = "OnFailure"
|
||||
image_pull_secrets {
|
||||
name = "ghcr-credentials"
|
||||
}
|
||||
container {
|
||||
name = "digest"
|
||||
# CronJobs track :latest + imagePullPolicy: Always (fleet
|
||||
# convention) so the daily run picks up the current image.
|
||||
image = "ghcr.io/viktorbarzin/goldmane-edge-aggregator:latest"
|
||||
image_pull_policy = "Always"
|
||||
args = ["digest"]
|
||||
|
||||
env {
|
||||
name = "DATABASE_URL"
|
||||
value_from {
|
||||
secret_key_ref {
|
||||
name = "goldmane-edges-db-creds"
|
||||
key = "DATABASE_URL"
|
||||
}
|
||||
}
|
||||
}
|
||||
env {
|
||||
name = "SLACK_WEBHOOK_URL"
|
||||
value_from {
|
||||
secret_key_ref {
|
||||
name = "goldmane-edges-slack"
|
||||
key = "SLACK_WEBHOOK_URL"
|
||||
}
|
||||
}
|
||||
}
|
||||
env {
|
||||
name = "SLACK_CHANNEL"
|
||||
value = "#security"
|
||||
}
|
||||
|
||||
resources {
|
||||
requests = {
|
||||
cpu = "10m"
|
||||
memory = "64Mi"
|
||||
}
|
||||
limits = {
|
||||
memory = "64Mi"
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
lifecycle {
|
||||
# KYVERNO_LIFECYCLE_V1 (CronJob path): Kyverno mutates dns_config with ndots=2.
|
||||
ignore_changes = [spec[0].job_template[0].spec[0].template[0].spec[0].dns_config]
|
||||
}
|
||||
}
|
||||
|
||||
# -----------------------------------------------------------------------------
|
||||
# 7. Egress (default-deny consideration)
|
||||
# -----------------------------------------------------------------------------
|
||||
# Goldmane's own NetworkPolicy already allows INGRESS on 7443 from anywhere, so
|
||||
# nothing is needed on the Goldmane side. No egress policy is declared here:
|
||||
# this namespace is default-allow egress today. IF/WHEN it is brought under the
|
||||
# wave-1 default-deny egress enforcement (per-namespace allowlists), add
|
||||
# (Global)NetworkPolicy egress rules permitting:
|
||||
# - goldmane.calico-system.svc.cluster.local:7443 (the flow stream)
|
||||
# - pg-cluster-rw.dbaas.svc.cluster.local:5432 (Postgres)
|
||||
# - hooks.slack.com:443 (digest -> Slack, internet)
|
||||
# - kube-dns / CoreDNS :53 (DNS, every namespace)
|
||||
24
stacks/goldmane-edge-aggregator/terragrunt.hcl
Normal file
24
stacks/goldmane-edge-aggregator/terragrunt.hcl
Normal file
|
|
@ -0,0 +1,24 @@
|
|||
include "root" {
|
||||
path = find_in_parent_folders()
|
||||
}
|
||||
|
||||
# Tier-1 stack (PG state backend). The root terragrunt.hcl generates backend.tf
|
||||
# (pg backend, schema_name = "goldmane-edge-aggregator"), providers.tf,
|
||||
# cloudflare_provider.tf and tiers.tf automatically — do NOT hand-write those.
|
||||
# This stack adds the hashicorp/tls provider via a local versions.tf (merged
|
||||
# into the generated required_providers).
|
||||
|
||||
dependency "platform" {
|
||||
config_path = "../platform"
|
||||
skip_outputs = true
|
||||
}
|
||||
|
||||
dependency "vault" {
|
||||
config_path = "../vault"
|
||||
skip_outputs = true
|
||||
}
|
||||
|
||||
# The Vault DB static role pg-goldmane-edges (7-day rotation) and the CNPG
|
||||
# connection allowlist entry live in the vault stack (stacks/vault/main.tf).
|
||||
# The vault dependency above orders this stack after it so the ExternalSecret
|
||||
# can materialize the rotated credential on first apply.
|
||||
|
|
@ -31,6 +31,9 @@ locals {
|
|||
# "no local builds"). ghcr.io/viktorbarzin/k8s-portal:latest is PRIVATE
|
||||
# (infra repo default); the deployment references the cloned secret.
|
||||
"k8s-portal",
|
||||
# goldmane-edge-aggregator: PRIVATE ghcr image pulled by the aggregate
|
||||
# Deployment + digest CronJob (ADR-0014, infra#58).
|
||||
"goldmane-edge-aggregator",
|
||||
]
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -674,6 +674,7 @@ resource "vault_database_secret_backend_connection" "postgresql" {
|
|||
"pg-recruiter-responder", "pg-tripit",
|
||||
"pg-nextcloud-todos",
|
||||
"pg-technitium",
|
||||
"pg-goldmane-edges",
|
||||
]
|
||||
|
||||
postgresql {
|
||||
|
|
@ -891,6 +892,17 @@ resource "vault_database_secret_backend_static_role" "pg_technitium" {
|
|||
rotation_period = 604800
|
||||
}
|
||||
|
||||
# goldmane-edge-aggregator (ADR-0014 / infra #58) — 7-day rotation for the
|
||||
# goldmane_edges CNPG role. Consumed by stacks/goldmane-edge-aggregator via a
|
||||
# vault-database ExternalSecret -> DATABASE_URL (remoteRef static-creds/pg-goldmane-edges).
|
||||
resource "vault_database_secret_backend_static_role" "pg_goldmane_edges" {
|
||||
backend = vault_mount.database.path
|
||||
db_name = vault_database_secret_backend_connection.postgresql.name
|
||||
name = "pg-goldmane-edges"
|
||||
username = "goldmane_edges"
|
||||
rotation_period = 604800
|
||||
}
|
||||
|
||||
# =============================================================================
|
||||
# Kubernetes Secrets Engine — Dynamic K8s Credentials
|
||||
# =============================================================================
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue