infra/stacks/insta2spotify/main.tf
Viktor Barzin fecfa211fd fix: pvc-autoresizer threshold should be 10%, not 80%
topolvm/pvc-autoresizer's threshold annotation is the FREE-SPACE
percentage below which expansion fires (per upstream README). Setting
it to "80%" means "expand when free-space drops below 80%", i.e. as
soon as the PVC crosses 20% utilization — which caused
prometheus-data-proxmox to be repeatedly expanded from 200Gi to 433Gi
in 70 minutes (six 10% bumps, all when the volume was only ~14% used).
Once the SC opt-in fix landed (1e4eac53) and the inode metrics fix
landed (02a12f1a), the autoresizer started actively misfiring across
75+ PVCs cluster-wide.

Flip the value to "10%" everywhere — that's "expand when free-space
drops below 10%", i.e. at 90% utilization, which is the conventional
semantic and matches the alert thresholds in
prometheus_chart_values.tpl (PVAutoExpanding fires at 80%, PVFillingUp
at 95%).

The CLAUDE.md PVC template was the source of the misconfig, so update
it too. Live PVC annotations were patched in parallel via kubectl
annotate; TF apply on each affected stack will be a no-op against
those live values.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-10 19:56:16 +00:00

264 lines
6.8 KiB
HCL

variable "tls_secret_name" {
type = string
sensitive = true
}
variable "nfs_server" { type = string }
resource "kubernetes_namespace" "insta2spotify" {
metadata {
name = "insta2spotify"
labels = {
"istio-injection" = "disabled"
tier = local.tiers.aux
}
}
lifecycle {
# KYVERNO_LIFECYCLE_V1: goldilocks-vpa-auto-mode ClusterPolicy stamps this label on every namespace
ignore_changes = [metadata[0].labels["goldilocks.fairwinds.com/vpa-update-mode"]]
}
}
resource "kubernetes_manifest" "external_secret" {
manifest = {
apiVersion = "external-secrets.io/v1beta1"
kind = "ExternalSecret"
metadata = {
name = "insta2spotify-secrets"
namespace = "insta2spotify"
}
spec = {
refreshInterval = "15m"
secretStoreRef = {
name = "vault-kv"
kind = "ClusterSecretStore"
}
target = {
name = "insta2spotify-secrets"
}
dataFrom = [{
extract = {
key = "insta2spotify"
}
}]
}
}
depends_on = [kubernetes_namespace.insta2spotify]
}
resource "kubernetes_persistent_volume_claim" "data_proxmox" {
wait_until_bound = false
metadata {
name = "insta2spotify-data-proxmox"
namespace = kubernetes_namespace.insta2spotify.metadata[0].name
annotations = {
"resize.topolvm.io/threshold" = "10%"
"resize.topolvm.io/increase" = "100%"
"resize.topolvm.io/storage_limit" = "5Gi"
}
}
spec {
access_modes = ["ReadWriteOnce"]
storage_class_name = "proxmox-lvm"
resources {
requests = {
storage = "1Gi"
}
}
}
}
resource "kubernetes_deployment" "insta2spotify" {
metadata {
name = "insta2spotify"
namespace = kubernetes_namespace.insta2spotify.metadata[0].name
labels = {
app = "insta2spotify"
tier = local.tiers.aux
}
annotations = {
"reloader.stakater.com/auto" = "true"
}
}
spec {
replicas = 1
strategy {
type = "Recreate"
}
selector {
match_labels = {
app = "insta2spotify"
}
}
template {
metadata {
labels = {
app = "insta2spotify"
}
}
spec {
container {
name = "frontend"
image = "viktorbarzin/insta2spotify-frontend:latest"
port {
container_port = 3000
}
env {
name = "BACKEND_URL"
value = "http://127.0.0.1:8000"
}
env {
name = "ORIGIN"
value = "https://insta2spotify.viktorbarzin.me"
}
resources {
limits = {
memory = "128Mi"
}
requests = {
cpu = "10m"
memory = "128Mi"
}
}
}
container {
name = "backend"
image = "viktorbarzin/insta2spotify-backend:latest"
port {
container_port = 8000
}
env {
name = "DATABASE_PATH"
value = "/data/insta2spotify.db"
}
env {
name = "SPOTIFY_CACHE_PATH"
value = "/data/.spotify_cache"
}
env {
name = "SPOTIFY_REDIRECT_URI"
value = "https://insta2spotify.viktorbarzin.me/api/auth/callback"
}
env {
name = "SPOTIFY_PLAYLIST_ID"
value = "7lcLakPy8pwwegFoOQ7MoG"
}
env {
name = "SPOTIFY_CLIENT_ID"
value_from {
secret_key_ref {
name = "insta2spotify-secrets"
key = "spotify_client_id"
}
}
}
env {
name = "SPOTIFY_CLIENT_SECRET"
value_from {
secret_key_ref {
name = "insta2spotify-secrets"
key = "spotify_client_secret"
}
}
}
env {
name = "API_KEY"
value_from {
secret_key_ref {
name = "insta2spotify-secrets"
key = "api_key"
}
}
}
env {
name = "SPOTIFY_REFRESH_TOKEN"
value_from {
secret_key_ref {
name = "insta2spotify-secrets"
key = "spotify_refresh_token"
}
}
}
volume_mount {
name = "data"
mount_path = "/data"
}
resources {
limits = {
memory = "2Gi"
}
requests = {
cpu = "50m"
memory = "512Mi"
}
}
}
volume {
name = "data"
persistent_volume_claim {
claim_name = kubernetes_persistent_volume_claim.data_proxmox.metadata[0].name
}
}
}
}
}
lifecycle {
ignore_changes = [spec[0].template[0].spec[0].dns_config] # KYVERNO_LIFECYCLE_V1
}
}
resource "kubernetes_service" "insta2spotify" {
metadata {
name = "insta2spotify"
namespace = kubernetes_namespace.insta2spotify.metadata[0].name
labels = {
app = "insta2spotify"
}
}
spec {
selector = {
app = "insta2spotify"
}
port {
name = "http"
port = 80
target_port = 3000
}
}
}
# TLS secret is auto-synced by Kyverno ClusterPolicy sync-tls-secret
# No need for setup_tls_secret module
# Main ingress — protected by Authentik (frontend)
module "ingress" {
source = "../../modules/kubernetes/ingress_factory"
dns_type = "proxied"
namespace = kubernetes_namespace.insta2spotify.metadata[0].name
name = "insta2spotify"
tls_secret_name = var.tls_secret_name
auth = "required"
max_body_size = "50m"
extra_annotations = {
"gethomepage.dev/enabled" = "true"
"gethomepage.dev/name" = "insta2spotify"
"gethomepage.dev/description" = "Instagram Reels to Spotify"
"gethomepage.dev/icon" = "si-spotify"
"gethomepage.dev/group" = "Media & Entertainment"
"gethomepage.dev/pod-selector" = ""
}
}
# API ingress — unprotected (API key auth handled by backend). XHR-based
# endpoints; `auth = "public"` would 302+cookie-dance and break CORS
# preflight, so we stay at `auth = "none"`.
module "ingress_api" {
source = "../../modules/kubernetes/ingress_factory"
namespace = kubernetes_namespace.insta2spotify.metadata[0].name
name = "insta2spotify-api"
host = "insta2spotify"
service_name = "insta2spotify"
tls_secret_name = var.tls_secret_name
auth = "none"
ingress_path = ["/api/identify", "/api/auth", "/api/health", "/api/history"]
max_body_size = "50m"
}