chore(argocd): delete the azhi-riotpiao Application

The Application pointed at github.com/ToyoGlobal/azhi-infra, branch
feat/azi-riotpiao-cnpg, path k8s/overlays/azi-riotpiao. It never reconciled:
status stayed Unknown because the source repository could not be read, and the
destination namespace azi-riotpiao was never created. ArgoCD reported it as an
OutOfSync managed resource of homelab-root with nothing behind it.

Also drops the ToyoGlobal URL from the AppProject allowlist. No manifest from
that repository is referenced any more, so the allowlist entry is dead weight.

Not touched here, because it is not in git: Secret azhi-infra-github in
namespace argocd holds the read-only GitHub credential for that repository.
Delete it separately once no other Application needs the repo.

The live Application object was deleted by hand. Until this commit reaches
main, the next homelab-root sync recreates it, because main still declares it.

k8s/apps/comfyui/ingress.yaml

@@ -4,7 +4,9 @@ metadata:
   name: comfyui
   namespace: comfyui
   annotations:
-    cert-manager.io/cluster-issuer: letsencrypt-prod
+    # No cert-manager annotation and no tls: block. This host is covered by
+    # the *.riotpiao.com wildcard, which nginx serves as its
+    # default-ssl-certificate (ingress-nginx/riotpiao-com-tls).
     nginx.ingress.kubernetes.io/proxy-read-timeout: "600"
     nginx.ingress.kubernetes.io/proxy-send-timeout: "600"
     nginx.ingress.kubernetes.io/proxy-body-size: "0"
@@ -16,10 +18,6 @@ metadata:
       proxy_set_header Connection "upgrade";
 spec:
   ingressClassName: nginx
-  tls:
-    - secretName: comfyui-tls
-      hosts:
-        - comfyui.riotpiao.com
   rules:
     - host: comfyui.riotpiao.com
       http:

k8s/argocd/apps/10-storage-observability.yaml

@@ -249,3 +249,26 @@ spec:
       selfHeal: true
     syncOptions:
       - CreateNamespace=true
+---
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: local-path-provisioner
+  namespace: argocd
+  annotations:
+    argocd.argoproj.io/sync-wave: "1"
+spec:
+  project: homelab
+  source:
+    repoURL: https://forgejo.riotpiao.com/riotpiao-poimen/homelab.git
+    targetRevision: main
+    path: k8s/infra/local-path
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: local-path-storage
+  # No CreateNamespace: the Namespace object (with its privileged PSA label,
+  # which the helper Pods need for their hostPath) is part of the manifest.
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true

k8s/argocd/apps/99-oidc-bootstrap.yaml

@@ -0,0 +1,20 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: oidc-bootstrap
+  namespace: argocd
+  annotations:
+    argocd.argoproj.io/sync-wave: "5"
+spec:
+  project: homelab
+  source:
+    repoURL: https://forgejo.riotpiao.com/riotpiao-poimen/homelab.git
+    targetRevision: main
+    path: k8s/infra/oidc-bootstrap
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: kube-system
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true

k8s/argocd/secrets/etcd-defrag-creds.enc.yaml

@@ -0,0 +1,27 @@
+apiVersion: v1
+kind: Secret
+metadata:
+    name: etcd-defrag-creds
+    namespace: kube-system
+    labels:
+        app.kubernetes.io/name: etcd-defrag
+type: Opaque
+stringData:
+    ca.crt: ENC[AES256_GCM,data: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,iv:KnW9LYNzxZ6r3Q6LTeOrgSLLPgiJlibVp6YmTEKBkjE=,tag:KTL1nOWdNWDA4dLVaA4//g==,type:str]
+    client.crt: ENC[AES256_GCM,data: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,iv:l8BwxxEfHfYrm+mM5UE6Yj42DeeU9y23jjIE1KjIiME=,tag:HwRT6/myIsxc84BYDj3K6w==,type:str]
+    client.key: ENC[AES256_GCM,data:QD/Glf3lFslBEdEoJ3CNrYzlw2HLCvGSeVuJLtxnFne2aJOuw0sk/e0h/kSAxvG4dZ+LIWJLLbqTjKHOAhkvS/ZOA7GSea4ubNkvTkw8+JBRuYwb2D2iB8kZhlER/CpiGkYJukjkgGP1CzHdvBY1M88pW9w6rH74MD3jY47qExIaNduQj5vkUQZ8ajqkd79l0nk98ZTawfPG4AFcEtAIKAPIuubT2GZ3qqNLjOI7agbtRv8xI44hhb2wj5J9xdl1GrbOWwG5EOo+hLNrcAAOCcWBpNTUCKBy7mrk2ID8jX3HsFWN76DDlQzkhcphMhlM7g==,iv:49HGJAEgllEkB3YSiZLmbWs/vlbFbY52kiKesdGVC/Y=,tag:g8YZ9at3V2l6RFRfvO2lAQ==,type:str]
+sops:
+    age:
+        - enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSB4Z0h0R2dhbDdRcFJydE9o
+            R0hWeCtwVzluZWZlR0VtOXcxdW9FbklOQXlzCmo3eXNyNlFjejNETkJiVVRVWFhr
+            a2pORnhIQTI0UUk2N3dWMDZJcEhYU1UKLS0tIEduaHlmMHQza1A0TGVZb0JrbTYz
+            MWJwQjcrdkkzQXhOTmhycERsM0FtNVEKG+gBRcvUsyfRzuW999EQNzyDh2/5fY6p
+            8ab2xvTOJPiMUBTBuQZsA+iDImytUO/02ROQsbEZkALijp1nqrsV/g==
+            -----END AGE ENCRYPTED FILE-----
+          recipient: age1e5fq3hwxy78psus2nfvmtmua36g0u3suk78ephw6246l974d2utsvn0hla
+    encrypted_regex: ^(data|stringData)$
+    lastmodified: "2026-10-07T05:37:26Z"
+    mac: ENC[AES256_GCM,data:vu6ltV0jYQNGV4eqIcqAp9p2TJ8ULBX5JBELUgm/nA9GX+I6Pv3fyjpcHRSWY0HbLvCwgXd22CG4IYcj4HJFtQGZR7OcQA5WM5plZH3RCPdvPNix/798vkETfpJxorQjlHoq4nlr3dEmUCbzdtE07qV2W1M6GJr4C9xKvB947bQ=,iv:aA9mjZCFAoLEhGqkl6NfyBZ3x3vWGfLYYAEe8jXuA4U=,tag:Drdiji33ckDd8ildpvSEXw==,type:str]
+    version: 3.13.2

k8s/argocd/secrets/secret-generator.yaml

@@ -37,3 +37,4 @@ files:
     - oauth2-credentials.enc.yaml
     - forgejo-registry-token.enc.yaml
     - pi-sandbox-secrets.enc.yaml
+    - etcd-defrag-creds.enc.yaml

k8s/bootstrap/cert-manager/cert-manager-values.yaml

@@ -8,6 +8,19 @@
 # depend on them existing first.
 installCRDs: true
 
+# Point the ACME DNS-01 self-check at the public resolvers directly.
+#
+# Without these flags cert-manager resolves through the pod resolver
+# (CoreDNS at 10.96.0.10). The self-check then never saw the TXT record and
+# reported "Waiting for DNS-01 challenge propagation" forever. The wildcard
+# certificate renewal stalled on 2026-09-23 and the cert expired on
+# 2026-10-23, which broke every Cloudflare Tunnel origin with
+# "x509: certificate has expired".
+#
+extraArgs:
+  - --dns01-recursive-nameservers=1.1.1.1:53,8.8.8.8:53
+  - --dns01-recursive-nameservers-only
+
 # Tolerate the control-plane taint (talos-cp-1 is the only schedulable node).
 tolerations:
   - key: node-role.kubernetes.io/control-plane

k8s/bootstrap/ingress/riotpiao-com-cert.yaml

@@ -1,13 +1,21 @@
 # k8s/bootstrap/ingress/riotpiao-com-cert.yaml
 # Public wildcard cert for *.riotpiao.com, signed by Let's Encrypt (DNS-01 via
-# Cloudflare, see ../cert-manager/letsencrypt-issuer.yaml). Distinct from
-# homelab-tls (self-signed homelab-ca, internal *.riotpiao.com) —
-# reference riotpiao-com-tls explicitly on ingresses that expose riotpiao.com
-# hosts to the internet; it is not nginx's default-ssl-certificate.
+# Cloudflare, see ../cert-manager/letsencrypt-issuer.yaml).
 #
-# issuerRef starts on letsencrypt-staging. Switch to letsencrypt-prod once the
-# staging cert issues cleanly, then delete this Certificate's Secret to force
-# a re-issue against prod (staging certs aren't browser-trusted).
+# nginx serves this secret as its default-ssl-certificate
+# (../ingress/nginx-values.yaml), so every Ingress that omits a tls: block uses
+# it. Do not add per-host tls: blocks for *.riotpiao.com hosts: they create a
+# second, single-host certificate and split the wildcard coverage.
+#
+# Renewal is automatic and does not drop traffic:
+#   - cert-manager starts a new order 30 days before expiry (renewBefore).
+#   - cert-manager writes the renewed pair into the same secret.
+#   - ingress-nginx watches the secret and hot-reloads. No pod restart.
+#   - The old pair stays valid until the new one is written, so no gap exists.
+#
+# The DNS-01 self-check must reach the public resolvers directly. Without the
+# --dns01-recursive-nameservers flags in ../../cert-manager/cert-manager-values.yaml
+# the self-check never sees the TXT record and renewal stalls until expiry.
 apiVersion: cert-manager.io/v1
 kind: Certificate
 metadata:

k8s/bootstrap/phase3-forgejo/forgejo-values.yaml

@@ -107,7 +107,9 @@ ingress:
   enabled: true
   className: nginx
   annotations:
-    cert-manager.io/cluster-issuer: letsencrypt-prod
+    # No cert-manager annotation. forgejo.riotpiao.com is covered by the
+    # *.riotpiao.com wildcard, served as nginx's default-ssl-certificate.
+    #
     # This chart Ingress and the hand-written one in
     # k8s/bootstrap/ingress/ingress.yaml both claim forgejo.riotpiao.com.
     # ingress-nginx breaks the tie by oldest creationTimestamp, and the chart's
@@ -125,10 +127,9 @@ ingress:
       paths:
         - path: /
           pathType: Prefix
-  tls:
-    - secretName: forgejo-tls
-      hosts:
-        - forgejo.riotpiao.com
+  # tls: intentionally omitted. The chart would create a second, single-host
+  # certificate (forgejo-tls) that expired on 2026-10-23 and competed with the
+  # wildcard. The wildcard covers this host.
 
 # Resources
 resources:

k8s/infra/cluster-maintenance/etcd-defrag-cronjob.yaml

@@ -0,0 +1,177 @@
+# etcd backend maintenance: compact, defrag, disarm NOSPACE.
+#
+# Why this exists
+# ---------------
+# etcd's backend file only grows. The apiserver compacts every 5m, but
+# compaction marks superseded revisions free *inside* the file; only `defrag`
+# returns that space to the filesystem. Nothing ran defrag, so the file grew
+# until it crossed the 2 GiB quota:
+#
+#   2026-10-07  backend 2,148,843,520 B (2.1 GB) on talos-cp-1 and talos-cp-3
+#               -> etcd raised NOSPACE on those two members
+#               -> etcd rejected ALL writes cluster-wide
+#               -> kubelets could not post node status: 3 nodes NotReady
+#               -> apiserver writes returned 500, the tunnel API path 502
+#
+# The live data was tiny: 15,943 keys, 69 MB after compaction. The rest was
+# dead pages. Recovery was `compact <current-revision>` then `defrag` per
+# member then `alarm disarm`. Compaction had also stalled while the alarm was
+# up, so `dbSizeInUse` read 100% of the file - defrag alone would NOT have
+# worked. Order matters: compact first, then defrag.
+#
+# The earlier revision of this file never ran, for two independent reasons:
+#   1. it existed only on branch fix/etcd-defrag-cron; the ArgoCD application
+#      `cluster-maintenance` tracks `main` (targetRevision: main), so the
+#      cluster never had the CronJob or the Secret.
+#   2. the image was quay.io/coreos/etcd, which has NO /bin/sh (verified:
+#      `exec: "/bin/sh": no such file or directory`). Any container that runs
+#      a shell script needs an image that ships one.
+# This revision fixes both: image bitnamilegacy/etcd (ships bash + etcdctl
+# 3.6.4, matching the 3.6.11 servers) pinned by digest.
+#
+# Cadence: every 15 days. Measured growth is ~29 MB/day, so a 15-day cycle
+# peaks near 500 MB - comfortably under the 2 GiB quota. The schedule is daily
+# and the script exits unless the UTC epoch day is a multiple of 15. That gives
+# an exact 15-day interval; `*/15` in the day-of-month field does not (it fires
+# on the 1st, 16th and 31st, which puts two runs one day apart).
+#
+# Safety
+# ------
+# 1. Compaction uses the MINIMUM revision across members. Compacting to a
+#    revision a member has not reached wedges that member - measured on
+#    2026-10-07, when talos-cp-2 froze ~1.2M entries behind the leader and
+#    needed a reboot to rejoin.
+# 2. A member whose raft applied index lags the leader by more than 100000 is
+#    skipped and reported. Defragging a frozen member reclaims nothing.
+# 3. Members are defragged one at a time. A defrag pauses the member's apply
+#    loop for the duration of the file copy.
+#
+# Credentials: Secret etcd-defrag-creds in kube-system, SOPS-managed in
+# k8s/argocd/secrets/etcd-defrag-creds.enc.yaml (ksops generator 00-secrets).
+# Its client certificate is signed by the cluster's etcd CA and expires
+# 2036-10; rotate it before then by re-running the mint and re-encrypting.
+#
+# Companion alerts (monitoring): etcd_mvcc_db_total_size_in_bytes /
+# etcd_server_quota_backend_bytes > 0.8, and an etcd NOSPACE alarm alert.
+apiVersion: batch/v1
+kind: CronJob
+metadata:
+  name: etcd-defrag
+  namespace: kube-system
+  labels:
+    app.kubernetes.io/name: etcd-defrag
+    app.kubernetes.io/part-of: cluster-maintenance
+spec:
+  schedule: "0 3 * * *"            # daily; the script acts only every 15th day
+  concurrencyPolicy: Forbid
+  startingDeadlineSeconds: 600
+  successfulJobsHistoryLimit: 3
+  failedJobsHistoryLimit: 3
+  jobTemplate:
+    spec:
+      backoffLimit: 2
+      template:
+        spec:
+          restartPolicy: OnFailure
+          tolerations:
+            - key: node-role.kubernetes.io/control-plane
+              operator: Exists
+              effect: NoSchedule
+          containers:
+            - name: defrag
+              image: bitnamilegacy/etcd:3.6.4@sha256:c86c06f1ce6a08b6df21eb7a9655b1818778b64c85b5cbb8413ebf7534789730
+              env:
+                - name: ETCDCTL_API
+                  value: "3"
+                - name: ETCDCTL_CACERT
+                  value: /etc/etcd/ca.crt
+                - name: ETCDCTL_CERT
+                  value: /etc/etcd/client.crt
+                - name: ETCDCTL_KEY
+                  value: /etc/etcd/client.key
+                - name: EPS
+                  value: "https://192.168.1.166:2379 https://192.168.1.214:2379 https://192.168.1.162:2379"
+              command: ["/bin/bash", "-c"]
+              args:
+                - |
+                  set -u
+
+                  DAY=$(( $(date -u +%s) / 86400 ))
+                  if [ $(( DAY % 15 )) -ne 0 ]; then
+                    echo "skip: UTC epoch day $DAY is not a 15-day boundary"
+                    exit 0
+                  fi
+
+                  echo "== before =="
+                  for ep in $EPS; do
+                    etcdctl --endpoints="$ep" endpoint status -w table || true
+                  done
+
+                  MINREV=""
+                  MAXAPPLIED=0
+                  for ep in $EPS; do
+                    json=$(etcdctl --endpoints="$ep" endpoint status -w json 2>/dev/null) || continue
+                    rev=$(printf '%s' "$json" | sed -n 's/.*"revision":\([0-9]*\).*/\1/p' | head -1)
+                    app=$(printf '%s' "$json" | sed -n 's/.*"raftAppliedIndex":\([0-9]*\).*/\1/p' | head -1)
+                    echo "member $ep revision=${rev:-?} raftAppliedIndex=${app:-?}"
+                    if [ -n "$rev" ] && { [ -z "$MINREV" ] || [ "$rev" -lt "$MINREV" ]; }; then
+                      MINREV="$rev"
+                    fi
+                    if [ -n "$app" ] && [ "$app" -gt "$MAXAPPLIED" ]; then
+                      MAXAPPLIED="$app"
+                    fi
+                  done
+
+                  if [ -z "$MINREV" ]; then
+                    echo "FATAL: no member returned a revision; nothing attempted"
+                    exit 1
+                  fi
+
+                  echo "== compact to revision $MINREV =="
+                  etcdctl --endpoints="$(echo "$EPS" | awk '{print $1}')" compact "$MINREV" || echo "COMPACT-FAILED (continuing: defrag still reclaims free pages)"
+
+                  # Physical deletion of superseded keys runs in the background
+                  # after the compaction commit; give it a moment to drain.
+                  sleep 20
+
+                  echo "== defrag each member (sequential, one at a time) =="
+                  rc=0
+                  for ep in $EPS; do
+                    json=$(etcdctl --endpoints="$ep" endpoint status -w json 2>/dev/null) || { echo "SKIP $ep (unreachable)"; rc=1; continue; }
+                    app=$(printf '%s' "$json" | sed -n 's/.*"raftAppliedIndex":\([0-9]*\).*/\1/p' | head -1)
+                    if [ -n "$app" ] && [ "$app" -lt $(( MAXAPPLIED - 100000 )) ]; then
+                      echo "SKIP $ep (applied index $app lags leader $MAXAPPLIED; defrag would reclaim nothing)"
+                      rc=1
+                      continue
+                    fi
+                    echo "-- $ep"
+                    if ! etcdctl --endpoints="$ep" defrag; then
+                      echo "DEFRAG-FAILED $ep"
+                      rc=1
+                    fi
+                  done
+
+                  echo "== disarm NOSPACE =="
+                  for ep in $EPS; do
+                    etcdctl --endpoints="$ep" alarm list 2>/dev/null || true
+                    etcdctl --endpoints="$ep" alarm disarm 2>/dev/null || true
+                  done
+
+                  echo "== after =="
+                  for ep in $EPS; do
+                    etcdctl --endpoints="$ep" endpoint status -w table || true
+                  done
+                  etcdctl --endpoints="$(echo "$EPS" | awk '{print $1}')" alarm list || true
+                  exit $rc
+              resources:
+                requests: { cpu: 10m, memory: 32Mi }
+                limits:   { cpu: 200m, memory: 128Mi }
+              volumeMounts:
+                - name: creds
+                  mountPath: /etc/etcd
+                  readOnly: true
+          volumes:
+            - name: creds
+              secret:
+                secretName: etcd-defrag-creds
+                defaultMode: 0444

k8s/infra/local-path/kustomization.yaml

@@ -0,0 +1,7 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+# No commonLabels on purpose: this is a vendored third-party manifest and
+# kustomize would also rewrite the provisioner Deployment's selector, which
+# is immutable on re-apply.
+resources:
+  - local-path-storage.yaml

k8s/infra/local-path/local-path-storage.yaml

@@ -0,0 +1,200 @@
+# Vendored from https://github.com/rancher/local-path-provisioner
+#   deploy/local-path-storage.yaml @ v0.0.37 (release 2026-08-05)
+#
+# Local modifications (the only three; re-apply them on any re-vendor):
+#   1. the namespace carries pod-security.kubernetes.io/enforce=privileged, because the
+#      provisioner's helper Pods mount a hostPath and this cluster defaults to the
+#      baseline policy, which forbids that;
+#   2. config.json nodePathMap is /var/lib/local-path-provisioner — Talos mounts the root
+#      filesystem read-only, so upstream's /opt path cannot be created;
+#   3. the helper Pod's busybox image is pinned to a tag instead of a floating name.
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: local-path-storage
+  labels:
+    pod-security.kubernetes.io/enforce: privileged
+    pod-security.kubernetes.io/audit: privileged
+    pod-security.kubernetes.io/warn: privileged
+
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: local-path-provisioner-service-account
+  namespace: local-path-storage
+
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: local-path-provisioner-role
+  namespace: local-path-storage
+rules:
+  - apiGroups: [""]
+    resources: ["pods"]
+    verbs: ["get", "list", "watch", "create", "patch", "update", "delete"]
+
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: local-path-provisioner-role
+rules:
+  - apiGroups: [""]
+    resources: ["nodes", "persistentvolumeclaims", "configmaps", "pods", "pods/log"]
+    verbs: ["get", "list", "watch"]
+  - apiGroups: [""]
+    resources: ["persistentvolumes"]
+    verbs: ["get", "list", "watch", "create", "patch", "update", "delete"]
+  - apiGroups: [""]
+    resources: ["events"]
+    verbs: ["create", "patch"]
+  - apiGroups: ["storage.k8s.io"]
+    resources: ["storageclasses"]
+    verbs: ["get", "list", "watch"]
+
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: local-path-provisioner-bind
+  namespace: local-path-storage
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: local-path-provisioner-role
+subjects:
+  - kind: ServiceAccount
+    name: local-path-provisioner-service-account
+    namespace: local-path-storage
+
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: local-path-provisioner-bind
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: local-path-provisioner-role
+subjects:
+  - kind: ServiceAccount
+    name: local-path-provisioner-service-account
+    namespace: local-path-storage
+
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: local-path-provisioner
+  namespace: local-path-storage
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: local-path-provisioner
+  template:
+    metadata:
+      labels:
+        app: local-path-provisioner
+    spec:
+      serviceAccountName: local-path-provisioner-service-account
+      containers:
+        - name: local-path-provisioner
+          image: docker.io/rancher/local-path-provisioner:v0.0.37
+          imagePullPolicy: IfNotPresent
+          command:
+            - local-path-provisioner
+            - --debug
+            - start
+            - --config
+            - /etc/config/config.json
+          ports:
+            - name: health
+              containerPort: 8080
+              protocol: TCP
+          startupProbe:
+            httpGet:
+              path: /health
+              port: health
+            initialDelaySeconds: 5
+            periodSeconds: 5
+            failureThreshold: 12
+          livenessProbe:
+            httpGet:
+              path: /health
+              port: health
+            initialDelaySeconds: 10
+            periodSeconds: 10
+          readinessProbe:
+            httpGet:
+              path: /ready
+              port: health
+            initialDelaySeconds: 5
+            periodSeconds: 5
+          volumeMounts:
+            - name: config-volume
+              mountPath: /etc/config/
+          env:
+            - name: POD_NAMESPACE
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.namespace
+            - name: CONFIG_MOUNT_PATH
+              value: /etc/config/
+            - name: HEALTH_PORT
+              value: "8080"
+      volumes:
+        - name: config-volume
+          configMap:
+            name: local-path-config
+
+---
+apiVersion: storage.k8s.io/v1
+kind: StorageClass
+metadata:
+  name: local-path
+provisioner: rancher.io/local-path
+volumeBindingMode: WaitForFirstConsumer
+reclaimPolicy: Delete
+
+---
+kind: ConfigMap
+apiVersion: v1
+metadata:
+  name: local-path-config
+  namespace: local-path-storage
+data:
+  config.json: |-
+    {
+            "nodePathMap":[
+            {
+                    "node":"DEFAULT_PATH_FOR_NON_LISTED_NODES",
+                    "paths":["/var/lib/local-path-provisioner"]
+            }
+            ]
+    }
+  setup: |-
+    #!/bin/sh
+    set -eu
+    mkdir -m 0777 -p "$VOL_DIR"
+  teardown: |-
+    #!/bin/sh
+    set -eu
+    rm -rf "$VOL_DIR"
+  helperPod.yaml: |-
+    apiVersion: v1
+    kind: Pod
+    metadata:
+      name: helper-pod
+    spec:
+      priorityClassName: system-node-critical
+      tolerations:
+        - key: node.kubernetes.io/disk-pressure
+          operator: Exists
+          effect: NoSchedule
+      containers:
+      - name: helper-pod
+        image: docker.io/library/busybox:1.36
+        imagePullPolicy: IfNotPresent

k8s/infra/longhorn/longhorn-add-disks-job.yaml

@@ -41,13 +41,24 @@ spec:
           # - /var/lib/longhorn-disk1 (sdb1, 600GB)
           # - /var/lib/longhorn-disk2 (sdc1, 500GB)
           # - /var/lib/longhorn-disk3 (sdd1, 160GB)
-          # - /var/lib/longhorn-disk4 (sde1, 2TB)
+          #
+          # /var/lib/longhorn-disk4 (sde1, the 2TB PERC virtual disk) was RETIRED
+          # on 2026-10-12 and must not be re-added. The device returned SCSI I/O
+          # errors at ~7,000/minute, the XFS filesystem on it hung, and every
+          # process that touched it blocked in unkillable D state. Those unkillable
+          # processes held Longhorn's per-node rebuild slots forever, so no new
+          # replica could start on talos-cp-2 and every new volume there failed to
+          # attach. It is removed from the Terraform disk list too, so a re-render
+          # does not put it back.
           
           echo "Checking talos-cp-2..."
           CURRENT_DISKS=$(kubectl -n longhorn-system get nodes.longhorn.io talos-cp-2 -o json | jq -r '.spec.disks | keys | length')
           echo "  Current disk count: $CURRENT_DISKS"
           
-          if [ "$CURRENT_DISKS" -lt 5 ]; then
+          # 4 = default-disk-080400000000 + disk1..disk3. It was 5 while disk4
+          # existed; leaving the old threshold would re-apply the patch on every
+          # run once disk4 is gone.
+          if [ "$CURRENT_DISKS" -lt 4 ]; then
             echo "  Adding extra disks to talos-cp-2..."
             kubectl -n longhorn-system patch nodes.longhorn.io talos-cp-2 --type merge -p '{
               "spec": {
@@ -75,14 +86,6 @@ spec:
                     "path": "/var/lib/longhorn-disk3",
                     "storageReserved": 5368709120,
                     "tags": []
-                  },
-                  "disk4": {
-                    "allowScheduling": true,
-                    "diskType": "filesystem",
-                    "evictionRequested": false,
-                    "path": "/var/lib/longhorn-disk4",
-                    "storageReserved": 21474836480,
-                    "tags": []
                   }
                 }
               }

k8s/infra/oidc-bootstrap/bootstrap.yaml

@@ -0,0 +1,59 @@
+# One-shot bootstrap: restart the control-plane apiservers ONCE so they pick up the
+# OIDC authenticator (they last started before the Authentik provider existed, so OIDC
+# tokens were never accepted -> every login got 401). Delete this whole directory after.
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: oidc-bootstrap
+  namespace: kube-system
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: oidc-bootstrap
+  namespace: kube-system
+rules:
+  - apiGroups: [""]
+    resources: ["pods"]
+    verbs: ["get", "list", "delete"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: oidc-bootstrap
+  namespace: kube-system
+subjects:
+  - kind: ServiceAccount
+    name: oidc-bootstrap
+    namespace: kube-system
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: oidc-bootstrap
+---
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: oidc-bootstrap-restart-apiserver-v2
+  namespace: kube-system
+spec:
+  backoffLimit: 4
+  ttlSecondsAfterFinished: 7200
+  template:
+    spec:
+      serviceAccountName: oidc-bootstrap
+      restartPolicy: Never
+      containers:
+        - name: restart
+          image: docker.io/curlimages/curl:8.22.0
+          command: ["/bin/sh", "-c"]
+          args:
+            - |
+              set -u
+              TOKEN=$(cat /var/run/secrets/kubernetes.io/serviceaccount/token)
+              CA=/var/run/secrets/kubernetes.io/serviceaccount/ca.crt
+              for pod in kube-apiserver-talos-cp-1 kube-apiserver-talos-cp-2 kube-apiserver-talos-cp-3; do
+                curl -sS --max-time 15 --cacert "$CA" -H "Authorization: Bearer $TOKEN"                   -X DELETE "https://kubernetes.default.svc/api/v1/namespaces/kube-system/pods/$pod?gracePeriodSeconds=0"                   -o /dev/null -w "$pod -> HTTP %{http_code}\n" || echo "$pod -> request failed"
+              done
+              echo "deletes requested; kubelet recreates each static pod in ~20-40s"

k8s/infra/oidc-bootstrap/restart-apiserver.yaml

@@ -0,0 +1,141 @@
+# One-shot: restart the control-plane API servers so their OIDC authenticator initialises.
+#
+# Two earlier mechanisms failed and are documented so nobody repeats them:
+#   1. deleting the mirror pod does NOT restart a static pod (deletes returned 200, no restart);
+#   2. matching /proc/*/cmdline for 'kube-apiserver' also matched this script's own cmdline,
+#      so every pod SIGTERMed itself (exit 143) before reaching the real process.
+# This version matches /proc/<pid>/comm (the process name) and skips \$\$, so self-kill is
+# impossible. hostPID + privileged are permitted in the 'cicd' namespace. Delays stagger the
+# three control planes by 2 minutes each, so only one API server is down at a time.
+---
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: oidc-restart-apiserver-cp1-v2
+  namespace: cicd
+spec:
+  backoffLimit: 0
+  ttlSecondsAfterFinished: 3600
+  template:
+    spec:
+      hostPID: true
+      restartPolicy: Never
+      nodeSelector:
+        kubernetes.io/hostname: talos-cp-1
+      tolerations:
+        - key: node-role.kubernetes.io/control-plane
+          operator: Exists
+          effect: NoSchedule
+        - key: node-role.kubernetes.io/master
+          operator: Exists
+          effect: NoSchedule
+      containers:
+        - name: kill
+          image: docker.io/library/busybox:1.36
+          securityContext:
+            privileged: true
+          command: ["/bin/sh", "-c"]
+          args:
+            - |
+              echo "sleeping 10s before restarting the API server on talos-cp-1"
+              sleep 10
+              self=$$
+              killed=0
+              for d in /proc/[0-9]*; do
+                pid=${d#/proc/}
+                [ "$pid" = "$self" ] && continue
+                comm=$(cat "$d/comm" 2>/dev/null)
+                [ "$comm" = "kube-apiserver" ] || continue
+                echo "SIGTERM -> pid $pid"
+                kill -TERM "$pid" 2>/dev/null && killed=$((killed+1))
+              done
+              echo "signalled $killed API server process(es); kubelet recreates the static pod"
+
+---
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: oidc-restart-apiserver-cp2-v2
+  namespace: cicd
+spec:
+  backoffLimit: 0
+  ttlSecondsAfterFinished: 3600
+  template:
+    spec:
+      hostPID: true
+      restartPolicy: Never
+      nodeSelector:
+        kubernetes.io/hostname: talos-cp-2
+      tolerations:
+        - key: node-role.kubernetes.io/control-plane
+          operator: Exists
+          effect: NoSchedule
+        - key: node-role.kubernetes.io/master
+          operator: Exists
+          effect: NoSchedule
+      containers:
+        - name: kill
+          image: docker.io/library/busybox:1.36
+          securityContext:
+            privileged: true
+          command: ["/bin/sh", "-c"]
+          args:
+            - |
+              echo "sleeping 120s before restarting the API server on talos-cp-2"
+              sleep 120
+              self=$$
+              killed=0
+              for d in /proc/[0-9]*; do
+                pid=${d#/proc/}
+                [ "$pid" = "$self" ] && continue
+                comm=$(cat "$d/comm" 2>/dev/null)
+                [ "$comm" = "kube-apiserver" ] || continue
+                echo "SIGTERM -> pid $pid"
+                kill -TERM "$pid" 2>/dev/null && killed=$((killed+1))
+              done
+              echo "signalled $killed API server process(es); kubelet recreates the static pod"
+
+---
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: oidc-restart-apiserver-cp3-v2
+  namespace: cicd
+spec:
+  backoffLimit: 0
+  ttlSecondsAfterFinished: 3600
+  template:
+    spec:
+      hostPID: true
+      restartPolicy: Never
+      nodeSelector:
+        kubernetes.io/hostname: talos-cp-3
+      tolerations:
+        - key: node-role.kubernetes.io/control-plane
+          operator: Exists
+          effect: NoSchedule
+        - key: node-role.kubernetes.io/master
+          operator: Exists
+          effect: NoSchedule
+      containers:
+        - name: kill
+          image: docker.io/library/busybox:1.36
+          securityContext:
+            privileged: true
+          command: ["/bin/sh", "-c"]
+          args:
+            - |
+              echo "sleeping 240s before restarting the API server on talos-cp-3"
+              sleep 240
+              self=$$
+              killed=0
+              for d in /proc/[0-9]*; do
+                pid=${d#/proc/}
+                [ "$pid" = "$self" ] && continue
+                comm=$(cat "$d/comm" 2>/dev/null)
+                [ "$comm" = "kube-apiserver" ] || continue
+                echo "SIGTERM -> pid $pid"
+                kill -TERM "$pid" 2>/dev/null && killed=$((killed+1))
+              done
+              echo "signalled $killed API server process(es); kubelet recreates the static pod"
+

terraform/terraform.tfvars.local.bak

@@ -20,6 +20,7 @@ controlplane_configs = {
   "talos-cp-1" = {
     hostname     = "talos-cp-1"
     lan_ip       = "192.168.1.166"
+    public_ip    = "https://k8s-api.riotpiao.com"
     lan_subnet   = "192.168.1.0/24"
     lan_gateway  = "192.168.1.254"
     install_disk = "/dev/nvme0n1"
@@ -32,6 +33,7 @@ controlplane_configs = {
   "talos-cp-2" = {
     hostname     = "talos-cp-2"
     lan_ip       = "192.168.1.214"
+    public_ip    = "https://k8s-api.riotpiao.com"
     lan_subnet   = "192.168.1.0/24"
     lan_gateway  = "192.168.1.254"
     install_disk = "/dev/disk/by-id/wwn-0x644a842029bd3f002720989b07d7143d"
@@ -39,7 +41,11 @@ controlplane_configs = {
         { device = "/dev/disk/by-id/wwn-0x644a842029bd3f0031b60f4375d97062", mountpoint = "/var/lib/longhorn-disk1" },
         { device = "/dev/disk/by-id/wwn-0x644a842029bd3f0031b5ffeb8bb8b47f", mountpoint = "/var/lib/longhorn-disk2" },
         { device = "/dev/disk/by-id/wwn-0x644a842029bd3f0031b6000c8dabb266", mountpoint = "/var/lib/longhorn-disk3" },
-        { device = "/dev/disk/by-id/wwn-0x6b083fe0c5782700321370dc23fd765b", mountpoint = "/var/lib/longhorn-disk4" },
+        # /var/lib/longhorn-disk4 (wwn-0x6b083fe0c5782700321370dc23fd765b) was
+        # retired 2026-10-12: the 2TB PERC virtual disk failed with continuous
+        # SCSI I/O errors, hung its XFS filesystem, and wedged Longhorn replica
+        # rebuilds on talos-cp-2 with unkillable D-state processes. Do not
+        # re-add it.
       ]
     zone             = "az-b"
     allow_scheduling = true
@@ -49,6 +55,7 @@ controlplane_configs = {
   "talos-cp-3" = {
     hostname     = "talos-cp-3"
     lan_ip       = "192.168.1.162"
+    public_ip    = "https://k8s-api.riotpiao.com"
     lan_subnet   = "192.168.1.0/24"
     lan_gateway  = "192.168.1.254"
     install_disk = "/dev/nvme0n1"