infra/stacks/meshcentral/main.tf
Viktor Barzin 8b004c4c94 feat(storage): migrate all sensitive services to proxmox-lvm-encrypted
Reconcile Terraform with cluster state after manual encrypted PVC migrations
and complete the remaining unfinished migrations. All services storing
sensitive data now use LUKS2-encrypted block storage via the Proxmox CSI
plugin.

## Context

Only Technitium DNS was using encrypted storage in Terraform. Many services
had been manually migrated to encrypted PVCs in the cluster, but Terraform
was never updated — creating dangerous state drift where a `tg apply` could
recreate unencrypted PVCs.

## This change

Phase 0 — Infrastructure:
- Add `proxmox-lvm-encrypted` StorageClass to Helm values (extraParameters)
- Add ExternalSecret for LUKS encryption passphrase to Terraform
- Fix CSI node plugin memory: `node.plugin.resources` (not `node.resources`)
  with 1280Mi limit for LUKS2 Argon2id key derivation

Phase 1 — TF state reconciliation (zero downtime):
- Health, Matrix, N8N, Forgejo, Vaultwarden, Mailserver: state rm + import
- Redis, DBAAS MySQL, DBAAS PostgreSQL: Helm/CNPG value updates

Phase 2 — Data migration (encrypted PVCs existed but unused):
- Headscale, Frigate, MeshCentral: rsync + switchover
- Nextcloud (20Gi): rsync + chart_values update

Phase 3 — New encrypted PVCs:
- Roundcube HTML, HackMD, Affine, DBAAS pgadmin: create + rsync + switchover

Phase 4 — Cleanup:
- Deleted 5 orphaned unencrypted PVCs

## Services migrated (18 PVCs across 14 namespaces)

```
vaultwarden     → vaultwarden-data-encrypted
dbaas           → datadir-mysql-cluster-0, pg-cluster-{1,2}, dbaas-pgadmin-encrypted
mailserver      → mailserver-data-encrypted, roundcubemail-{enigma,html}-encrypted
nextcloud       → nextcloud-data-encrypted
forgejo         → forgejo-data-encrypted
matrix          → matrix-data-encrypted
n8n             → n8n-data-encrypted
affine          → affine-data-encrypted
health          → health-uploads-encrypted
hackmd          → hackmd-data-encrypted
redis           → redis-data-redis-node-{0,1}
headscale       → headscale-data-encrypted
frigate         → frigate-config-encrypted
meshcentral     → meshcentral-{data,files}-encrypted
```

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-15 20:15:30 +00:00

275 lines
7 KiB
HCL

variable "tls_secret_name" {
type = string
sensitive = true
}
variable "nfs_server" { type = string }
resource "kubernetes_namespace" "meshcentral" {
metadata {
name = "meshcentral"
labels = {
"istio-injection" : "disabled"
tier = local.tiers.aux
}
}
}
module "tls_secret" {
source = "../../modules/kubernetes/setup_tls_secret"
namespace = kubernetes_namespace.meshcentral.metadata[0].name
tls_secret_name = var.tls_secret_name
}
resource "kubernetes_persistent_volume_claim" "data_encrypted" {
wait_until_bound = false
metadata {
name = "meshcentral-data-encrypted"
namespace = kubernetes_namespace.meshcentral.metadata[0].name
annotations = {
"resize.topolvm.io/threshold" = "80%"
"resize.topolvm.io/increase" = "100%"
"resize.topolvm.io/storage_limit" = "5Gi"
}
}
spec {
access_modes = ["ReadWriteOnce"]
storage_class_name = "proxmox-lvm-encrypted"
resources {
requests = {
storage = "1Gi"
}
}
}
}
resource "kubernetes_persistent_volume_claim" "files_encrypted" {
wait_until_bound = false
metadata {
name = "meshcentral-files-encrypted"
namespace = kubernetes_namespace.meshcentral.metadata[0].name
annotations = {
"resize.topolvm.io/threshold" = "80%"
"resize.topolvm.io/increase" = "100%"
"resize.topolvm.io/storage_limit" = "5Gi"
}
}
spec {
access_modes = ["ReadWriteOnce"]
storage_class_name = "proxmox-lvm-encrypted"
resources {
requests = {
storage = "1Gi"
}
}
}
}
module "nfs_backups_host" {
source = "../../modules/kubernetes/nfs_volume"
name = "meshcentral-backups-host"
namespace = kubernetes_namespace.meshcentral.metadata[0].name
nfs_server = "192.168.1.127"
nfs_path = "/srv/nfs/meshcentral/meshcentral-backups"
}
resource "kubernetes_deployment" "meshcentral" {
metadata {
name = "meshcentral"
namespace = kubernetes_namespace.meshcentral.metadata[0].name
labels = {
app = "meshcentral"
tier = local.tiers.aux
}
annotations = {
"reloader.stakater.com/search" = "true"
"meshcentral.enable" = "true"
}
}
spec {
replicas = 1
strategy {
type = "Recreate"
}
selector {
match_labels = {
app = "meshcentral"
}
}
template {
metadata {
labels = {
app = "meshcentral"
}
annotations = {
"diun.enable" = "true"
"diun.include_tags" = "^\\d+(?:\\.\\d+)?(?:\\.\\d+)?$,latest"
}
}
spec {
init_container {
name = "fix-config"
image = "alpine:latest"
image_pull_policy = "IfNotPresent"
command = ["/bin/sh"]
args = ["-c", <<-EOT
CONFIG=/opt/meshcentral/meshcentral-data/config.json
if [ -f "$CONFIG" ]; then
# Disable certUrl when using Traefik reverse proxy with TLS offload
sed -i 's/"certUrl":/"_certUrl":/g' "$CONFIG"
# Fix WebRTC value from string to boolean
sed -i 's/"WebRTC": "[^"]*"/"WebRTC": false/g' "$CONFIG"
# Ensure TLSOffload is enabled (Traefik terminates TLS, MeshCentral serves HTTP on 443)
sed -i 's/"_TLSOffload":/"TLSOffload":/g' "$CONFIG"
sed -i 's/"TLSOffload": "[^"]*"/"TLSOffload": true/g' "$CONFIG"
sed -i 's/"TLSOffload": false/"TLSOffload": true/g' "$CONFIG"
else
# First run: create config from template before startup.sh runs, so REVERSE_PROXY
# env var doesn't generate a bad certUrl. Pre-seed with correct values.
cat > "$CONFIG" <<'CONF'
{
"$schema": "http://info.meshcentral.com/downloads/meshcentral-config-schema.json",
"settings": {
"cert": "meshcentral.viktorbarzin.me",
"_WANonly": true,
"_LANonly": true,
"port": 443,
"redirPort": 80,
"AgentPong": 300,
"TLSOffload": true,
"SelfUpdate": false,
"AllowFraming": false,
"WebRTC": false
},
"domains": {
"": {
"NewAccounts": false
}
}
}
CONF
fi
EOT
]
volume_mount {
name = "data"
mount_path = "/opt/meshcentral/meshcentral-data"
}
}
container {
image = "typhonragewind/meshcentral:latest"
name = "meshcentral"
port {
name = "http"
container_port = 443
}
env {
name = "TZ"
value = "Europe/Sofia"
}
env {
name = "HOSTNAME"
value = "meshcentral.viktorbarzin.me"
}
env {
name = "REVERSE_PROXY"
value = "false"
}
env {
name = "ALLOW_NEW_ACCOUNTS"
value = "false"
}
env {
name = "WEBRTC"
value = "false"
}
volume_mount {
name = "data"
mount_path = "/opt/meshcentral/meshcentral-data"
}
volume_mount {
name = "files"
mount_path = "/opt/meshcentral/meshcentral-files"
}
resources {
requests = {
cpu = "15m"
memory = "256Mi"
}
limits = {
memory = "256Mi"
}
}
volume_mount {
name = "backups"
mount_path = "/opt/meshcentral/meshcentral-backups"
}
}
volume {
name = "data"
persistent_volume_claim {
claim_name = kubernetes_persistent_volume_claim.data_encrypted.metadata[0].name
}
}
volume {
name = "files"
persistent_volume_claim {
claim_name = kubernetes_persistent_volume_claim.files_encrypted.metadata[0].name
}
}
volume {
name = "backups"
persistent_volume_claim {
claim_name = module.nfs_backups_host.claim_name
}
}
}
}
}
}
resource "kubernetes_service" "meshcentral" {
metadata {
name = "meshcentral"
namespace = kubernetes_namespace.meshcentral.metadata[0].name
labels = {
"app" = "meshcentral"
}
}
spec {
selector = {
app = "meshcentral"
}
port {
name = "http"
port = 80
target_port = 443
protocol = "TCP"
}
}
}
module "ingress" {
source = "../../modules/kubernetes/ingress_factory"
namespace = kubernetes_namespace.meshcentral.metadata[0].name
name = "meshcentral"
tls_secret_name = var.tls_secret_name
port = 80
protected = true
anti_ai_scraping = false
extra_annotations = {
"gethomepage.dev/enabled" = "true"
"gethomepage.dev/name" = "MeshCentral"
"gethomepage.dev/description" = "Remote management"
"gethomepage.dev/icon" = "meshcentral.png"
"gethomepage.dev/group" = "Infrastructure"
"gethomepage.dev/pod-selector" = ""
}
}