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9 commits

Author SHA1 Message Date
Viktor Barzin
8ed427a7e4 cloud-init: hands-off k8s worker provisioning + 5 bug fixes
Goal: re-clone the worker template, boot, and have it appear as `kubectl
get nodes …Ready` with no manual steps. Adds `scripts/provision-k8s-worker
NAME VMID IP` and rebuilds the cloud-init pipeline that was failing five
distinct ways on a clean boot.

Bugs fixed (all hit during the k8s-node5 + k8s-node6 builds today):

1. `indent(6, containerd_config_update_command)` indented the bodies of
   `cat >> /etc/containerd/config.toml <<'CONTAINERD_GC'` heredocs, so
   [plugins.*] TOML sections landed in /etc/containerd/config.toml at
   col 6 — containerd refused to parse them. Source is now a normal
   .sh file (`modules/create-template-vm/k8s-node-containerd-setup.sh`)
   base64-embedded into `write_files`; YAML whitespace never touches
   the heredoc bodies.

2. The same script tried to `cat >> /etc/containerd/config.toml`
   `[plugins."io.containerd.gc.v1.scheduler"]` etc., which containerd
   v2.2.4's `config default` ALREADY emits. Result: `toml: table …
   already exists`. Patched with sed-in-place overrides instead.

3. Kubelet tuning (sed against /var/lib/kubelet/config.yaml) ran from
   the containerd setup script — BEFORE `kubeadm join` writes that
   file. Sed aborted with "No such file or directory", `set -e` killed
   the script, post-script cloud-init steps kept going (cloud-init
   doesn't stop on runcmd failure). Split into a dedicated
   `k8s-node-post-join-tune.sh` invoked AFTER kubeadm join.

4. cloud_init.yaml fallocate'd a 4G swapfile and `swapon`'d it BEFORE
   kubeadm join. kubelet defaults to failSwapOn=true → exited 1
   immediately. Replaced the swap setup with `swapoff -a` (node4
   already runs this way and the cluster is fine).

5. Without `hostname:` in the shared user-data snippet, Proxmox's
   auto-generated meta-data does NOT include local-hostname when
   `cicustom user=…` is set — so cloud-init falls back to the cloud
   image's default `ubuntu` and `kubeadm join` registers the wrong
   node name. `provision-k8s-worker` now writes a per-node
   `<NAME>-meta.yaml` snippet and passes both via
   `cicustom user=…,meta=…`.

Other improvements rolled in while fixing the above:

- `ssh_public_key` read from Vault (`secret/viktor.ssh_public_key`,
  added today) instead of `var.ssh_public_key`. The last
  `terragrunt apply` was run with that var empty, leaving the snippet's
  `ssh_authorized_keys` with a single blank entry; the wizard user
  was effectively locked out of every fresh node.
- `cloud_init.yaml` adds `/etc/systemd/resolved.conf.d/global-dns.conf`
  with `DNS=8.8.8.8 1.1.1.1, FallbackDNS=10.0.20.201`. Without it,
  systemd-resolved only consulted Technitium (link-level), which
  returns NXDOMAIN for `forgejo.viktorbarzin.me` — kubelet pulls from
  the Forgejo registry then failed DNS until I patched it manually
  on node5.
- k8s apt repo bumped v1.32 → v1.34 (matches cluster).
- The containerd setup script now creates hosts.toml for forgejo,
  quay, registry.k8s.io in addition to docker.io + ghcr.io. node3/4
  had these added by hand post-bootstrap; now they're baked in.
- `config_path` sed matches both `""` (containerd v1) and `''`
  (containerd v2.x). Without the v2 match, the certs.d mirror dir was
  silently ignored.
- `proxmox-csi` node map adds k8s-node5 + k8s-node6 entries so CSI
  topology labels (region/zone, max-volume-attachments=28) apply on
  next `tg apply`.
- `stacks/infra/main.tf` shed the 160-line inline containerd setup
  heredoc — that whole thing now lives in the module as a .sh file.

Known unsolved gaps (deferred):

- iscsid restart hangs ~90s on first boot before SIGKILL releases it
  (systemd-resolved restart kicks iscsid via dependency). Adds wall-
  clock time but doesn't block the join.
- `provision-k8s-worker` doesn't run `tg apply` on `proxmox-csi`
  afterward, so the CSI topology labels need a manual apply after
  the node joins. Solving cleanly needs the CSI map to derive from
  `kubectl get nodes` instead of a static local — separate work.
- `var.containerd_config_update_command` is now ignored when
  is_k8s_template=true (replaced by the bundled .sh file). Variable
  kept with a deprecation note to avoid breaking other call sites.

E2E proof: k8s-node6 (VMID 206) boots hands-off from
`provision-k8s-worker k8s-node6 206 10.0.20.106` and appears as
`kubectl get nodes …Ready` ~7 min later (most of which is the apt
package_upgrade — separate optimization).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-26 11:52:00 +00:00
Viktor Barzin
400ee88967 state(dbaas): update encrypted state 2026-05-26 08:59:40 +00:00
Viktor Barzin
c77984a713 proxmox-csi/node: bump memory request 64Mi → 1Gi (LUKS unlock reservation)
The CSI node plugin's LUKS2 Argon2id key derivation peaks at ~1 GiB
during unlock (memory id=712 + already-documented in the limits=1280Mi).
Request was 64 MiB — meaning the unlock burst ran "best-effort", first in
line for OOM under node pressure. krr 2026-05-22 flagged this as a top
under-request. Bumping request matches the documented requirement.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-24 01:10:44 +00:00
Viktor Barzin
bcf22640b2 keel: enroll 11 more namespaces (operators + critical infra)
Per user decision, removed authentik, kyverno, metallb-system,
external-secrets, proxmox-csi, nfs-csi, vpa, sealed-secrets,
infra-maintenance from the policy-level exclude list, and added
keel.sh/enrolled=true to aiostreams (alive — 1/1 Running, despite
being earlier flagged as scaled-to-0) and woodpecker.

Net cluster coverage: 197/227 workloads on safe-force (86%), up from
170/227 (74%). All 197 are paired with match-tag=true (digest-only).

Remaining 7 namespaces in Kyverno exclude list (irreducible):
- keel (self-update)
- calico-system + tigera-operator (operator-managed Installation CR)
- cnpg-system + dbaas (state-coupled)
- nvidia (chart-pinned at 570.195.03 per code-8vr0 until NVIDIA ships
  ubuntu26.04 driver images)
- kube-system (k8s built-ins)

Files:
- stacks/kyverno/modules/kyverno/keel-annotations.tf — exclude list
  trimmed from 16 → 7
- stacks/authentik, kyverno, proxmox-csi, nfs-csi, vpa, sealed-secrets,
  servarr/aiostreams, metallb (creates ns "metallb-system"), woodpecker —
  added keel.sh/enrolled=true label on kubernetes_namespace resource
- infra-maintenance was in the policy exclude but the namespace doesn't
  actually exist in the cluster; the removal is a no-op there

Applied via kubectl patch on the live ClusterPolicy + kubectl label on
namespaces because the kubernetes provider v3.1.0 panics on Kyverno
ClusterPolicy refresh — TF source has the desired state for next clean
apply on a fixed provider.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-17 20:59:14 +00:00
Viktor Barzin
1e4eac5386 proxmox-csi: opt SCs into pvc-autoresizer (resize.topolvm.io/enabled=true)
Without this annotation on the StorageClass, pvc-autoresizer's controller
filters the SC out at the index lookup stage and never patches any of its
PVCs, regardless of utilization or per-PVC threshold/increase/storage_limit
annotations. Internal metric pvcautoresizer_loop_seconds_total ticked but
no PVCs were ever evaluated — visible cluster-wide as PVAutoExpanding alerts
firing for forgejo-data-encrypted (82%) and audit-vault-0 (81%) without any
ResizeStarted events ever following.

The Prometheus scrape-config fix in 9d5da4d8 was a prerequisite (autoresizer
reads kubelet_volume_stats_available_bytes) but not sufficient on its own.

Also pinning chart version to 0.5.6 so the next apply doesn't incidentally
bump to 0.5.7.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-10 18:22:25 +00:00
Viktor Barzin
8b43692af0 [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip]
## Context

Wave 3B-continued: the Goldilocks VPA dashboard (stacks/vpa) runs a Kyverno
ClusterPolicy `goldilocks-vpa-auto-mode` that mutates every namespace with
`metadata.labels["goldilocks.fairwinds.com/vpa-update-mode"] = "off"`. This
is intentional — Terraform owns container resource limits, and Goldilocks
should only provide recommendations, never auto-update. The label is how
Goldilocks decides per-namespace whether to run its VPA in `off` mode.

Effect on Terraform: every `kubernetes_namespace` resource shows the label
as pending-removal (`-> null`) on every `scripts/tg plan`. Dawarich survey
2026-04-18 confirmed the drift. Cluster-side count: 88 namespaces carry the
label (`kubectl get ns -o json | jq ... | wc -l`). Every TF-managed namespace
is affected.

This commit brings the intentional admission drift under the same
`# KYVERNO_LIFECYCLE_V1` discoverability marker introduced in c9d221d5 for
the ndots dns_config pattern. The marker now stands generically for any
Kyverno admission-webhook drift suppression; the inline comment records
which specific policy stamps which specific field so future grep audits
show why each suppression exists.

## This change

107 `.tf` files touched — every stack's `resource "kubernetes_namespace"`
resource gets:

```hcl
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"]]
}
```

Injection was done with a brace-depth-tracking Python pass (`/tmp/add_goldilocks_ignore.py`):
match `^resource "kubernetes_namespace" ` → track `{` / `}` until the
outermost closing brace → insert the lifecycle block before the closing
brace. The script is idempotent (skips any file that already mentions
`goldilocks.fairwinds.com/vpa-update-mode`) so re-running is safe.

Vault stack picked up 2 namespaces in the same file (k8s-users produces
one, plus a second explicit ns) — confirmed via file diff (+8 lines).

## What is NOT in this change

- `stacks/trading-bot/main.tf` — entire file is `/* … */` commented out
  (paused 2026-04-06 per user decision). Reverted after the script ran.
- `stacks/_template/main.tf.example` — per-stack skeleton, intentionally
  minimal. User keeps it that way. Not touched by the script (file
  has no real `resource "kubernetes_namespace"` — only a placeholder
  comment).
- `.terraform/` copies (e.g. `stacks/metallb/.terraform/modules/...`) —
  gitignored, won't commit; the live path was edited.
- `terraform fmt` cleanup of adjacent pre-existing alignment issues in
  authentik, freedify, hermes-agent, nvidia, vault, meshcentral. Reverted
  to keep the commit scoped to the Goldilocks sweep. Those files will
  need a separate fmt-only commit or will be cleaned up on next real
  apply to that stack.

## Verification

Dawarich (one of the hundred-plus touched stacks) showed the pattern
before and after:

```
$ cd stacks/dawarich && ../../scripts/tg plan

Before:
  Plan: 0 to add, 2 to change, 0 to destroy.
   # kubernetes_namespace.dawarich will be updated in-place
     (goldilocks.fairwinds.com/vpa-update-mode -> null)
   # module.tls_secret.kubernetes_secret.tls_secret will be updated in-place
     (Kyverno generate.* labels — fixed in 8d94688d)

After:
  No changes. Your infrastructure matches the configuration.
```

Injection count check:
```
$ rg -c 'KYVERNO_LIFECYCLE_V1: goldilocks-vpa-auto-mode' stacks/ | awk -F: '{s+=$2} END {print s}'
108
```

## Reproduce locally
1. `git pull`
2. Pick any stack: `cd stacks/<name> && ../../scripts/tg plan`
3. Expect: no drift on the namespace's goldilocks.fairwinds.com/vpa-update-mode label.

Closes: code-dwx

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-18 21:15:27 +00:00
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
Viktor Barzin
fe342a974b monitoring + proxmox-csi: LVM snapshot RBAC, pushgateway NodePort, backup dashboard
- proxmox-csi: add RBAC for PVE host snapshot restore script
- monitoring: expose Pushgateway via NodePort for PVE LVM snapshot metrics
- monitoring: add backup health Grafana dashboard
2026-04-06 11:57:41 +03:00
Viktor Barzin
dd59512153 migrate iSCSI block volumes from democratic-csi to Proxmox CSI [ci skip]
Replace TrueNAS iSCSI (democratic-csi) with Proxmox CSI plugin for all
block storage PVCs. Eliminates double-CoW (ZFS + LVM-thin) and removes
the iSCSI network hop for database I/O.

New stack: stacks/proxmox-csi/ — deploys proxmox-csi-plugin Helm chart
with StorageClass "proxmox-lvm" using existing local-lvm thin pool.

Migrated PVCs (12 total):
- Phase 1 standalone: plotting-book, novelapp, vaultwarden, nextcloud, prometheus
- Phase 2 StatefulSets: CNPG PostgreSQL (2), MySQL InnoDB (3), Redis (2)

All services verified healthy post-migration.
2026-04-02 22:13:04 +03:00