infra/stacks/priority-pass/main.tf
Viktor Barzin 3f2b2f9d32 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>
2026-05-22 14:16:43 +00:00

176 lines
4.1 KiB
HCL

variable "image_tag" {
type = string
default = "7c01448d"
description = "priority-pass image tag (applies to both frontend + backend). Use 8-char git SHA in CI; :latest only for local trials."
}
variable "tls_secret_name" {
type = string
sensitive = true
}
locals {
frontend_image = "docker.io/viktorbarzin/priority-pass-frontend:${var.image_tag}"
backend_image = "docker.io/viktorbarzin/priority-pass-backend:${var.image_tag}"
}
resource "kubernetes_namespace" "priority-pass" {
metadata {
name = "priority-pass"
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"]]
}
}
module "tls_secret" {
source = "../../modules/kubernetes/setup_tls_secret"
namespace = "priority-pass"
tls_secret_name = var.tls_secret_name
}
resource "kubernetes_persistent_volume_claim" "uploads" {
wait_until_bound = false
metadata {
name = "priority-pass-uploads"
namespace = kubernetes_namespace.priority-pass.metadata[0].name
annotations = {
"resize.topolvm.io/threshold" = "10%"
"resize.topolvm.io/increase" = "100%"
"resize.topolvm.io/storage_limit" = "10Gi"
}
}
spec {
access_modes = ["ReadWriteOnce"]
storage_class_name = "proxmox-lvm-encrypted"
resources {
requests = { storage = "1Gi" }
}
}
}
resource "kubernetes_deployment" "priority-pass" {
metadata {
name = "priority-pass"
namespace = "priority-pass"
labels = {
run = "priority-pass"
tier = local.tiers.aux
}
}
spec {
replicas = 1
strategy {
type = "Recreate"
}
selector {
match_labels = {
run = "priority-pass"
}
}
template {
metadata {
labels = {
run = "priority-pass"
}
}
spec {
image_pull_secrets {
name = "registry-credentials"
}
volume {
name = "uploads"
persistent_volume_claim {
claim_name = kubernetes_persistent_volume_claim.uploads.metadata[0].name
}
}
container {
name = "frontend"
image = local.frontend_image
port {
container_port = 3000
}
env {
name = "BACKEND_URL"
value = "http://127.0.0.1:8000"
}
env {
name = "ORIGIN"
value = "https://priority-pass.viktorbarzin.me"
}
resources {
limits = {
memory = "128Mi"
}
requests = {
cpu = "10m"
memory = "128Mi"
}
}
}
container {
name = "backend"
image = local.backend_image
port {
container_port = 8000
}
env {
name = "UPLOAD_DIR"
value = "/data/uploads"
}
volume_mount {
name = "uploads"
mount_path = "/data/uploads"
}
resources {
limits = {
memory = "512Mi"
}
requests = {
cpu = "10m"
memory = "512Mi"
}
}
}
}
}
}
lifecycle {
ignore_changes = [spec[0].template[0].spec[0].dns_config] # KYVERNO_LIFECYCLE_V1
}
}
resource "kubernetes_service" "priority-pass" {
metadata {
name = "priority-pass"
namespace = "priority-pass"
labels = {
run = "priority-pass"
}
}
spec {
selector = {
run = "priority-pass"
}
port {
name = "http"
port = 80
target_port = 3000
}
}
}
module "ingress" {
source = "../../modules/kubernetes/ingress_factory"
dns_type = "proxied"
namespace = "priority-pass"
name = "priority-pass"
tls_secret_name = var.tls_secret_name
auth = "required"
max_body_size = "10m"
}