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feat(tripit): encrypted personal-document vault PVC + DOCUMENT_ENCRYPTION_KEY

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Add a proxmox-lvm-encrypted RWO PVC (tripit-personal-documents) mounted at
/data/personal-documents on the app container, PERSONAL_STORAGE_DIR env, and the
DOCUMENT_ENCRYPTION_KEY ExternalSecret entry (seeded in Vault secret/tripit). A
root chown init-container makes the block volume writable by the non-root app
without touching the NFS doc vault. Backs the new owner-only encrypted personal
document vault in the tripit app.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Viktor Barzin 2026-06-04 22:41:41 +00:00
parent 27989cd9f1
commit deb031cc2c
2 changed files with 87 additions and 20 deletions
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105
stacks/tripit/main.tf
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@ -29,14 +29,15 @@ locals {
# at the RWX NFS PVC — the app's default ./var is not writable by the
# non-root user.
app_env = {
AUTH_MODE = "forwardauth"
SERVE_FRONTEND_DIR = "/app/frontend_build"
STORAGE_DIR = "/data/documents"
FLIGHT_PROVIDER = "fake"
WEATHER_PROVIDER = "openmeteo"
PUSH_PROVIDER = "webpush"
LLM_MODE = "fake"
MAIL_INGEST_ENABLED = "false"
AUTH_MODE = "forwardauth"
SERVE_FRONTEND_DIR = "/app/frontend_build"
STORAGE_DIR = "/data/documents"
PERSONAL_STORAGE_DIR = "/data/personal-documents"
FLIGHT_PROVIDER = "fake"
WEATHER_PROVIDER = "openmeteo"
PUSH_PROVIDER = "webpush"
LLM_MODE = "fake"
MAIL_INGEST_ENABLED = "false"
# Outbound mail for linked-email verification — submitted via the cluster
# mailserver as spam@ (which relays out via Brevo). SMTP_PASSWORD comes from
# tripit-secrets (mapped to the existing PLANS_IMAP_PASSWORD). PUBLIC_BASE_URL
@ -106,6 +107,7 @@ resource "kubernetes_manifest" "external_secret" {
{ secretKey = "VAPID_PRIVATE_KEY", remoteRef = { key = "tripit", property = "VAPID_PRIVATE_KEY" } },
{ secretKey = "VAPID_SUBJECT", remoteRef = { key = "tripit", property = "VAPID_SUBJECT" } },
{ secretKey = "CALENDAR_TOKEN_SECRET", remoteRef = { key = "tripit", property = "CALENDAR_TOKEN_SECRET" } },
{ secretKey = "DOCUMENT_ENCRYPTION_KEY", remoteRef = { key = "tripit", property = "DOCUMENT_ENCRYPTION_KEY" } },
{ secretKey = "IMAP_PASSWORD", remoteRef = { key = "tripit", property = "IMAP_PASSWORD" } },
# spam@viktorbarzin.me password — used only by the ingest-plans CronJob
# (forward-to-parse via the @viktorbarzin.me -> spam@ catch-all).
@ -183,6 +185,37 @@ module "documents_nfs" {
access_modes = ["ReadWriteMany"]
}
# RWO encrypted PVC for the PERSONAL document vault (passports, IDs). Separate
# from the RWX NFS trip-doc store: owner-private identity docs get LUKS2 at-rest
# (proxmox-lvm-encrypted) UNDER the app-layer AES-256-GCM ciphertext (defense in
# depth). RWO is safe because the Deployment is replicas=1 + Recreate (single
# writer); only the app container mounts it, not the worker CronJobs.
resource "kubernetes_persistent_volume_claim" "personal_documents" {
wait_until_bound = false
metadata {
name = "tripit-personal-documents"
namespace = kubernetes_namespace.tripit.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-encrypted"
resources {
requests = {
storage = "2Gi"
}
}
}
lifecycle {
# Autoresizer grows requests.storage up to storage_limit; PVCs can't shrink.
ignore_changes = [spec[0].resources[0].requests]
}
}
resource "kubernetes_deployment" "tripit" {
metadata {
name = "tripit"
@ -235,6 +268,28 @@ resource "kubernetes_deployment" "tripit" {
}
}
# The proxmox-lvm-encrypted block PVC mounts root-owned; the app runs as
# uid 10001. chown it so the non-root app can write. Scoped to THIS block
# volume only (a pod-level fsGroup would also recursively chown the NFS
# doc vault, whose CSI fsGroupPolicy=File — risky on a root-squashed
# export). The NFS vault handles its own perms and is left untouched.
init_container {
name = "chown-personal-documents"
image = "busybox:1.37"
command = ["sh", "-c", "chown -R 10001:999 /data/personal-documents"]
security_context {
run_as_user = 0
}
volume_mount {
name = "personal-documents"
mount_path = "/data/personal-documents"
}
resources {
requests = { cpu = "10m", memory = "16Mi" }
limits = { memory = "32Mi" }
}
}
container {
name = "tripit"
image = local.image
@ -263,6 +318,11 @@ resource "kubernetes_deployment" "tripit" {
mount_path = "/data/documents"
}
volume_mount {
name = "personal-documents"
mount_path = "/data/personal-documents"
}
readiness_probe {
http_get {
path = "/healthz"
@ -292,6 +352,13 @@ resource "kubernetes_deployment" "tripit" {
claim_name = module.documents_nfs.claim_name
}
}
volume {
name = "personal-documents"
persistent_volume_claim {
claim_name = kubernetes_persistent_volume_claim.personal_documents.metadata[0].name
}
}
}
}
}
@ -373,9 +440,9 @@ locals {
# spam@'s password via imap_password_key (secret/tripit PLANS_IMAP_PASSWORD),
# because env_from otherwise injects the Gmail app-password.
ingest-plans = {
schedule = "*/15 * * * *"
command = ["python", "-m", "tripit_api", "ingest-mail"]
suspend = false
schedule = "*/15 * * * *"
command = ["python", "-m", "tripit_api", "ingest-mail"]
suspend = false
imap_pw_secret_key = "PLANS_IMAP_PASSWORD"
extra_env = {
LLM_MODE = "llamacpp"
@ -401,10 +468,10 @@ locals {
# authorization 403s the in-cluster *.svc Host header, so we reach it through
# the ingress (auth=none, api_key-gated) instead.
transport-nudge = {
schedule = "0 8 * * *"
timezone = "Europe/London"
command = ["python", "-m", "tripit_api", "run-transport-nudge"]
suspend = false
schedule = "0 8 * * *"
timezone = "Europe/London"
command = ["python", "-m", "tripit_api", "run-transport-nudge"]
suspend = false
extra_env = {
NUDGES_ENABLED = "true"
SLACK_PROVIDER = "slack"
@ -413,10 +480,10 @@ locals {
}
}
weather-brief = {
schedule = "0 21 * * *"
timezone = "Europe/London"
command = ["python", "-m", "tripit_api", "run-weather-brief"]
suspend = false
schedule = "0 21 * * *"
timezone = "Europe/London"
command = ["python", "-m", "tripit_api", "run-weather-brief"]
suspend = false
extra_env = {
NUDGES_ENABLED = "true"
SLACK_PROVIDER = "slack"