Commit Graph
449 Commits
Author SHA1 Message Date
rock 7f29d640fd feat(iam): own the ZITADEL core objects in GitOps
The chart declares its ServiceAccount, ConfigMap, Role and RoleBinding as
pre-install/pre-upgrade Helm hooks with hook-delete-policy before-hook-creation.
ArgoCD maps those to PreSync and prunes them when a sync ends, so every sync
deleted the ServiceAccount and ConfigMap the ZITADEL Deployment mounts. New pods
failed with `serviceaccount "zitadel" not found`, leaving the IdP one restart
from an outage.

Add a zatadel-core Application owning hook-free copies, keeping them as ordinary
desired state that survives every sync. Prune is off for this path: deleting a
ServiceAccount here would recreate the outage.

The ConfigMap also carries the notification settings, pointing
DefaultInstance.SMTPConfiguration at the smtp-gotify relay, with
SMTPSenderAddressMatchesInstanceDomain false because the sender
[email protected] differs from the instance domain zatadel.riotpiao.com.

Drop the envVarsSecret approach: ZITADEL created no SMTP provider from those env
vars (no instance.smtp.config.added event).
2026-10-26 23:54:57 -07:00
rock 9c3b2bfbbe feat(iam): wire ZITADEL SMTP through envVarsSecret
ZITADEL must send verification codes, and it only speaks SMTP. Route that at
the smtp-gotify relay so codes reach Gotify and the phone.

The settings go in as a ZITADEL_DEFAULTINSTANCE_SMTPCONFIGURATION_* envFrom
secret, not as configmapConfig. Editing configmapConfig makes ArgoCD stop
managing the rendered zitadel-config-yaml ConfigMap, which the Deployment still
mounts; that twice left the IdP one restart away from failing. Env vars override
the same keys and leave that ConfigMap alone.

Validated with helm template 10.4.0: envFrom appears on both ZITADEL containers
and zitadel-config-yaml still renders.
2026-10-26 23:45:59 -07:00
rock 81e6e9bc03 Revert "feat(iam): send ZITADEL notifications to the Gotify relay"
This reverts commit aa1f224349.
2026-10-26 23:41:01 -07:00
rock aa1f224349 feat(iam): send ZITADEL notifications to the Gotify relay
Point DefaultInstance.SMTPConfiguration at the in-cluster smtp-gotify relay, so
verification codes and password resets arrive on the phone instead of being
dropped for lack of a mail path.

Validated with `helm template zitadel/zitadel 10.4.0` before syncing: the block
renders, and the zatadel-config-yaml ConfigMap is still produced. An earlier
attempt looked like it removed that ConfigMap, which is why this went in only
after a local render check.
2026-10-26 23:39:53 -07:00
rock 37933de756 fix(iam): give the SMTP->Gotify relay a writable /tmp
The relay stages each message in /tmp before pushing. readOnlyRootFilesystem
left it with a read-only /tmp, so it answered '250 queued' and then dropped the
message: no Gotify push, no error line. Mount an emptyDir at /tmp.
2026-10-26 23:38:29 -07:00
rock 468ed16737 revert(iam): back out the SMTP values block that dropped the config ConfigMap
The sync removed zitadel-config-yaml while the Deployment still mounts it, so
the next pod restart would have failed. Restore the previous render first; the
relay stays deployed and can be wired once the chart accepts the block.
2026-10-26 23:32:50 -07:00
rock ab9c2b444b fix(iam): make the SMTP->Gotify relay actually push
Two defects in the first cut, both silent from the sender's side because the
relay answers 250 either way:

- GOTIFY_URL needs a trailing slash; without it the push has no path.
- GOTIFY_TITLE_TEMPLATE referenced .Subject, which the relay does not expose,
  so template execution failed.

The relay's default title already carries the subject, so drop the template.

Also register the SOPS file in secret-generator.yaml: the sops-secrets app only
renders files listed there, so the Secret was never created and the relay sat in
CreateContainerConfigError.
2026-10-26 23:28:44 -07:00
rock b6e1e0c591 fix(iam): give the IAM support manifests an ArgoCD app again
Retiring Authentik deleted the iam-jobs Application, so k8s/infra/iam stopped
being synced. The new smtp-gotify relay would have sat in git and never been
created.

Add an iam-support Application for that path, and drop the stale
rbac-dashboard-rolebinding reference from its kustomization: the file went away
with Authentik, and a missing resource fails the whole app.
2026-10-26 23:24:55 -07:00
rock 701d79deac feat(iam): deliver ZITADEL notifications through Gotify
ZITADEL sends verification codes and password resets by SMTP only, and this
cluster has no mail path. Every human user therefore sits at
verified_email = empty and can never finish a first login, at ZITADEL or at
Forgejo.

Add an smtp-gotify relay in the iam namespace: it accepts plain SMTP on :2525
and forwards each message to the existing Gotify instance, so codes arrive on
the phone through gotify/igotify instead of email.

Point DefaultInstance.SMTPConfiguration at that Service with TLS off, because
the relay speaks plain SMTP inside the cluster. The relay holds the Gotify app
token in a SOPS-encrypted Secret; values never carry the token.
2026-10-26 23:24:33 -07:00
rock eaf9804374 fix(iam): use the built-in ZITADEL login page
Sign-in failed with "Could not create session for user". The ZITADEL API
logged, on every session call:

  authz: verify access token -> invalid token
  token verifier repo: issuer does not match: Expected
    https://zitadel.riotpiao.com, got: login-client
  zitadel-login: [Password] Could not update session

The hosted Login UI authenticates as the machine user `login-client`. That
user did not exist in this instance, because the chart's setup job creates it
and setupJob is disabled after the first sync. Without the user the UI cannot
write a session, so no one can sign in, at ZITADEL or at Forgejo.

Disable the hosted Login UI so ZITADEL serves its built-in login, which needs
no machine user. Re-enable only after creating `login-client` and registering
the public key that matches zitadel-login-service-key.

Also register both callback spellings for the forgejo and paperless apps: the
callback path follows the login-source name, so a rename between authentik and
zitadel must not break sign-in.
2026-10-26 23:08:20 -07:00
rock 81883a8ea1 chore(iam): retire Authentik
Zitadel is running and has provisioned OIDC clients for all 12 consumers
(state.json: kubernetes, paperless, forgejo, argocd, grafana, immich, minio,
vault, poimen, api-gw, queue-sqs, homarr). Authentik's remaining job was to
serve until the last consumer moved.

Remove every Authentik artifact from GitOps:
- ArgoCD Application `authentik` and its Helm values
- ArgoCD Application `iam-jobs` (provisioner RBAC + migration job)
- ArgoCD Application `oidc-bootstrap` (one-shot apiserver restart)
- authentik-db CNPG cluster definition
- authentik-secrets SOPS file and secret-generator entry
- Ingress rule, cloudflared tunnel hostname, CoreDNS rewrite
- Prometheus alerts and ServiceMonitor
- admin OIDC ClusterRoleBinding provisioning binding
- scripts/iam/provision-rbac.py (the Authentik provisioner)

The chart repo https://charts.goauthentik.io is removed from the AppProject.

Kube-apiserver OIDC and consumer configs are switched to Zitadel in the
local cluster-config (gitignored) and applied separately via talosctl.
2026-10-26 03:32:18 -07:00
rock 7f96da880f fix(ingress): restore the authentik.riotpiao.com route
Commit a02bee5 had both the Ingress rule and the cloudflared tunnel
hostname for authentik.riotpiao.com. Both were lost, so the tunnel
answered 404 for the hostname and the ingress had no matching rule.

The CoreDNS rewrite and the authentik-server Service were still intact;
only the two routing entries were missing. Re-add the Ingress (namespace
iam, service authentik-server port 80, TLS terminated by the wildcard
default-ssl-certificate) and the tunnel hostname.
2026-10-26 03:12:26 -07:00
rock f37e5f32cb fix(paperless): use Recreate strategy for paperless-ai RWO PVC deadlock 2026-10-26 00:35:59 -07:00
rock 8c4a900b40 feat(vault): wire Zitadel OIDC login via postStart auth/oidc config 2026-10-26 00:28:19 -07:00
rock e6ba83cd38 feat(iam): wire all 9 consumer manifests to Zitadel OIDC 2026-10-26 00:14:51 -07:00
rock a02bee50e2 feat(iam): wire all 9 consumer manifests to Zitadel OIDC
Co-authored-by: rock <[email protected]>
2026-10-26 04:34:51 +00:00
rock 3ec46d26f0 merge: harness/zitadel-iam-wiring 2026-10-25 20:20:54 -07:00
rock 3e079b1cf7 merge: fix/minio-mc-image (keep digest pin + comment) 2026-10-25 20:20:22 -07:00
rock 227a67a8c1 feat(cloudflared): manage tunnel ingress locally via ConfigMap
The tunnel was remotely managed from the Zero Trust dashboard: the
Deployment ran 'run --token' and ignored the ConfigMap that already
existed in the tree. Switch to a locally-managed tunnel so the ingress
routing table lives in git.

- deployment: mount cloudflared-config (config.yml) and the
  cloudflared-credentials Secret; drop TUNNEL_TOKEN env
- configmap.yaml: per-hostname ingress rules to ingress-nginx via the
  CoreDNS rewrite, plus a 404 catch-all
- secret-generator: register the SOPS-encrypted credentials file
- homelab-ca: add the cloudflared namespace copy so the connector trusts
  the ingress certificate (force-ssl-redirect makes plaintext impossible)

Credentials were extracted from the live cloudflared-token Secret and
re-encrypted with SOPS; no plaintext secret is committed.
2026-10-25 19:57:37 -07:00
pi d4e9dbf350 refactor(iam): retire terraform/zitadel, provision through the API
The Terraform root module duplicated a writer that the provisioning script could
be, and its state carried generated client secrets. Declare the objects in the
script instead: project, 19 roles, 12 OIDC apps, applied through the management
API with the iam-admin PAT. State is a 0600 JSON file under ~/.config/zitadel.

Also add zitadel to the Cloudflare tunnel hostname list, with the import command
and the note that the tunnel's Public Hostname entry is a separate dashboard
step: DNS alone yields a 404 from the tunnel.
2026-10-25 19:35:01 -07:00
pi be44a576d4 fix(iam): own the Zitadel login keypair through ksops
The chart generated the login RSA keypair on every render, so
checksum/secret-login-service-key changed each time and both Zitadel
Deployments stayed permanently OutOfSync.

Adopt the live keypair into k8s/argocd/secrets/zitadel-login-service-key.enc.yaml
(SOPS, age recipient from .sops.yaml), list it in the ksops generator, and point
login.loginServiceKeySecretName at it. The chart then stops generating the
keypair and the Deployment checksums become deterministic.
2026-10-25 19:16:18 -07:00
pi 39081222a3 fix(iam): stop the setup hook running after first boot
A PreSync setup run is not harmless once the instance exists: it replays every
repeatable migration on every sync, and interrupting one leaves a
system.migration.started event with no matching done. ZITADEL then waits
forever on 'migration already started'. That deadlocked this instance twice
(projections.projects4, then repeatable_delete_stale_org_fields).

Move the setup job's hook from pre-install,pre-upgrade to post-delete so ArgoCD
sync never runs it. Re-enable deliberately for a schema upgrade.
2026-10-25 19:10:32 -07:00
pi 7e5b793670 fix(iam,edge): freeze first-boot and wire the WireGuard CIDR variable
Zitadel first boot completed on 2026-10-26, so set FirstInstance.Skip: true and
initJob.enabled: false. Without Skip, every sync re-runs machinekeyWriter and
silently rotates the iam-admin key that terraform/zitadel authenticates with.

Also wire wireguard_allowed_cidr into the WireGuard security-group rule; the
variable was declared but the rule still used relay_admin_cidr, which blocks
the homelab peer unless its egress address happens to match the operator CIDR.
2026-10-25 18:48:15 -07:00
pi 54fac02783 fix(cloudflared): pin tunnel protocol to http2
QUIC loses long-lived SSE streams when Chinese ISP gateways throttle UDP.
http2 over TCP is the deliberate fallback already in use.
2026-10-25 18:04:53 -07:00
pi eb83aa6290 refactor(edge,iam): apply best practices to relay and Zitadel config
- edge: extract VPC/subnet/bandwidth/disk/DNS/Caddy settings into variables
- edge: add Caddyfile template with SSE-safe flush_interval -1 and security headers
- edge: add WireGuard NAT masquerade so homelab peer accepts forwarded client IPs
- edge: mark user_data sensitive and add prevent_destroy to the relay instance
- edge: validate relay_admin_cidr and Cloudflare hostnames
- edge: parameterise Cloudflare TTL/proxied and enforce proxied tunnel CNAMEs
- iam: fix PDB key to chart-supported pdb and remove unsupported extraVolumes
- iam: keep login hardened; drop unsupported login PDB
2026-10-25 18:03:55 -07:00
pi 6ebecec1c4 fix(zitadel): raise setup job deadline to 20m
The chart default killed zitadel-setup at ~5.5 minutes while it was still
replaying projections.projects4, which failed the whole PreSync and left the
Application OutOfSync/Missing. 1200s leaves room for a cold database without
masking a genuine hang.
2026-10-25 09:47:33 -07:00
rock b7fc6ed60b fix(monitoring): cap Prometheus retention below the PVC size
retentionSize was 95GB against a 25Gi volume, so the limit never fired. The
volume filled, and Prometheus crashlooped with:

  write /prometheus/queries.active: no space left on device
  failed to initialize active query tracker

18GB keeps roughly 7GiB of headroom for the WAL and block overhead.
2026-10-24 21:43:01 -07:00
rock 6312674058 chore(sms): retire the stuck macOS namespace
The macOS workload is scaled to 0 and its PVC macos-disk has been Pending
for 72 days against storage class longhorn-imessage-local. No node carries
the workload=imessage label it pins to. The namespace only holds that dead
PVC plus two unused Services. Remove the Application, the manifests and the
namespace so ArgoCD prunes them.
2026-10-24 20:05:20 -07:00
rock e2d9717ce1 fix(argocd): allow the Zitadel chart repo in the homelab AppProject
The zitadel Application failed its first sync with InvalidSpecError:
application repo https://charts.zitadel.com is not permitted in project
'homelab'. AppProject sourceRepos is an allowlist, so the chart repo must be
listed before any chart from it can be reconciled.
2026-10-24 18:26:21 -07:00
rock e335694cbb fix(sops): repair the generator list and rotate the Zitadel masterkey
Two defects in the ksops generator:

1. The `zitadel-masterkey.enc.yaml` entry was added with two-space indentation
   while every other entry uses four. YAML rejected the list, and kustomize
   reported it as `loading generator plugins ... MalformedYAMLError: yaml: line
   39`. That failed the whole sops-secrets application, so no Secret in that app
   could be created. Verified by running the same kustomize build inside
   argocd-repo-server: exit 1 before the fix, exit 0 with 33 manifests after it.

2. The masterkey value was generated during the first verification pass and
   appeared in that session's output. Rotate it now, before the instance exists:
   a fresh 32-byte value, SOPS-encrypted, with the offline copy updated. No
   ZITADEL data exists yet, so rotation costs nothing. After the first sync it
   would mean re-encrypting system.encryption_keys.

The offline copy lives outside the repo at ~/zitadel-masterkey.offline (0600).
2026-10-24 18:24:28 -07:00
rock d1a7d3be6e fix(oidc): remove the API-server restart Jobs from GitOps
The oidc-bootstrap ArgoCD Application runs with selfHeal and prune. Three
Jobs in restart-apiserver.yaml kill the kube-apiserver process on each
control plane, and bootstrap.yaml carried a fourth Job that deletes the
mirror pods. ArgoCD recreated a deleted Job within two minutes, so the
kill repeated and every API server reached CrashLoopBackOff.

Remove all four. The OIDC authenticator already loaded, so the one-shot
restart is not needed again.
2026-10-24 15:06:32 -07:00
rock 2f664c32d9 fix(cluster): grant queue-operator watches and retire the macOS workload
queue-operator could not list temporalworkers.kmsvc.io or deployments.apps
at cluster scope, so its informers failed on every retry and it reconciled
nothing. Add those rules to the ClusterRole.

macos-bluebubbles pins itself to a node labelled workload=imessage, and no
such node exists. Its PVC macos-disk uses StorageClass longhorn-imessage-local
and stayed unbound for 71 days. Scale the Deployment to 0 and record why.
2026-10-24 04:03:02 -07:00
rock 6ee22401fd fix(sops): drop the orphan forgejo-registry-pat file
ksops failed the whole sops-secrets application on this file: it declares
Secret forgejo-registry-pat in namespace forgejo, and no such namespace exists.
The failure blocks every other file in the generator list, including
zitadel-masterkey.

The same Secret name is already generated in namespace api by
forgejo-registry-pat-api.enc.yaml, and that is the copy the gateway reads. The
forgejo namespace copy is stale: Forgejo runs in namespace cicd, and namespace
forgejo was never created.

Remove the file and its generator entry. ArgoCD never created the Secret, so
pruning has nothing to remove.
2026-10-24 03:46:29 -07:00
rock e9817283e6 Merge pull request 'feat(iam): wire Zitadel as the Authentik replacement' (#63) from harness/zitadel-iam-wiring into main 2026-10-24 10:41:17 +00:00
rock cb1219bf96 feat(iam): wire Zitadel into namespace iam under ArgoCD
Coexistence wiring for the Authentik replacement: ZITADEL gets its own CNPG
cluster, SOPS masterkey, Helm values and ArgoCD Application in namespace iam.
Authentik keeps serving; no consumer is moved and no Authentik object changes.

- k8s/infra/databases/zitadel-db.yaml: CNPG Postgres 16.2, 3 instances
- k8s/infra/iam/zitadel-values.yaml: chart 10.4.0 pinned, DSN from the CNPG
  secret, masterkey from a Secret, metrics ServiceMonitor, second-sync caveat
- k8s/argocd/apps/30-security.yaml: Application named zitadel, wave 3,
  automated sync deliberately absent for the first sync (chart PreSync hook
  re-run risk)
- k8s/argocd/secrets/zitadel-masterkey.enc.yaml: 32-byte masterkey, SOPS
- k8s/infra/monitoring/alerts/svc-zitadel-rules.yaml: target-down, login-UI,
  crash-loop and PreSync-job-failed rules
- terraform/files/coredns/Corefile: in-cluster rewrite for the zitadel host

Not applied. The cluster is mid-incident: vault-0 and authentik-server are 0/1,
authentik-db-2 has 14 restarts, prometheus-0 is 1/2 CrashLoopBackOff and
kube-state-metrics has 1925 restarts. Two manual steps still gate the first
sync: the Cloudflare Tunnel public hostname plus a proxied CNAME, and
terraform apply + make apply-cp for the CoreDNS rewrite (Talos-owned).

The offline masterkey copy is at ~/zitadel-masterkey.offline (mode 600). Move it
to sealed storage and delete it before the first sync. Losing it makes every
encrypted ZITADEL value unreadable.
2026-10-24 03:38:21 -07:00
rock 8e9ac37583 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.
2026-10-24 03:35:52 -07:00
rock e93d4ba86c fix(cert-manager): restore wildcard renewal and drop per-host TLS
The ACME DNS-01 self-check resolved through CoreDNS and never saw the TXT
record. The wildcard renewal stalled on 2026-09-23 and riotpiao-com-tls
expired on 2026-10-23. Every Cloudflare Tunnel origin then failed with
"x509: certificate has expired or is not yet valid".

Changes:

- cert-manager: pin the self-check to the public resolvers with
  --dns01-recursive-nameservers and --dns01-recursive-nameservers-only.
  Verified against Let's Encrypt staging: the challenge went valid and the
  certificate issued.
- comfyui and forgejo: drop the per-host tls blocks and the
  cert-manager.io/cluster-issuer annotations. The wildcard covers both
  hosts, and the per-host certificates (comfyui-tls, forgejo-tls) expired
  with the wildcard.
- riotpiao-com-cert: document the wildcard as nginx's default certificate
  and the zero-downtime renewal path.

Renewal now runs 30 days before expiry, writes the same secret, and nginx
hot-reloads without a pod restart.
2026-10-24 02:30:48 -07:00
rock 7a1213d504 Merge pull request 'fix(longhorn): retire the failed 2TB PERC disk on talos-cp-2' (#62) from fix/retire-longhorn-disk4 into main 2026-10-13 00:10:01 +00:00
rock d21ee9630f fix(longhorn): retire the failed 2TB PERC disk on talos-cp-2
The disk behind /var/lib/longhorn-disk4 (sde1, 2TB PERC H710P virtual disk)
failed: 54 million SCSI I/O errors and climbing at ~7,000/minute, against 3 on
every other device on the node. Its XFS filesystem hung, so five Longhorn
replica processes and the longhorn-manager blocked in uninterruptible D state
in openat and unlinkat. D-state processes cannot be killed, so they held the
node's three replica rebuild slots permanently: no new replica could start on
talos-cp-2 and every new volume there failed to attach with DeadlineExceeded.
That is what stopped the azhi database from coming up.

Removed from all three declarations so it cannot come back:
- terraform.tfvars.local.bak, longhorn_disks for talos-cp-2
- the Longhorn add-disks Job, which would otherwise re-register it
- the Job's disk-count guard, 5 -> 4, or it would fire on every run once the
  disk is gone

The running cluster already has the disk fenced
(allowScheduling=false, evictionRequested=true); the replicas are evicted and
the device retired at the controller after that.
2026-10-13 08:09:42 +08:00
rock 71fce30506 test(argocd): point azhi-riotpiao at the CNPG branch
The StatefulSet database could not attach its Longhorn volume, so the branch
runs the database as a CNPG Cluster instead. This pins the Application to that
branch for the test; it returns to the default branch once the branch merges.
2026-10-12 21:24:47 +08:00
rock 949ae5cb38 feat(argocd): let ArgoCD reconcile azhi-infra from its private GitHub repo
The homelab AppProject allowlist had no azhi repository, so an Application
pointing at ToyoGlobal/azhi-infra fails admission with 'repository not
permitted'. Adding the URL is the whole gate.

The Application itself targets the repository default branch
(harness/staging-slice), not main, and path k8s/overlays/azi-riotpiao. That
overlay renders postgres and the API into namespace azi-riotpiao.

The two Secrets the namespace needs stay out of Git: acr-pull carries the ACR
pull credential and azhi-riotpiao-app-env carries the database credentials,
the JWT secrets and the AES key.
2026-10-12 20:54:00 +08:00
rock abfdda5f57 fix(etcd): add a working 15-day defrag CronJob under the backend quota
etcd's backend file only grows: the apiserver compacts every 5m, but compaction
marks superseded revisions free inside the file, and only defrag returns that
space to the filesystem. Nothing ran defrag, so on 2026-10-07 the file reached
2,148,843,520 B, crossed the 2 GiB quota on talos-cp-1 and talos-cp-3, and etcd
raised NOSPACE. From then on etcd rejected every write cluster-wide: kubelets
could not post node status (3 nodes NotReady), apiserver writes returned 500 and
the tunnel API path returned 502. Live data was 15,943 keys, 69 MB after
compaction - the rest was dead pages. Compaction had also stalled while the
alarm was up, so dbSizeInUse read 100% of the file; defrag alone would have
reclaimed nothing. Compact must come first.

An earlier revision of this CronJob never ran, for two independent reasons, both
fixed here:
- its image quay.io/coreos/etcd ships no /bin/sh, so command: [/bin/sh, -c]
  failed with exec: "/bin/sh": no such file or directory
- it existed only on a side branch while the ArgoCD application
  cluster-maintenance tracks main, so the cluster never had it

Contents:
- CronJob etcd-defrag (kube-system): daily at 03:00, acts only when the UTC
  epoch day is a multiple of 15. That is an exact 15-day interval; */15 in the
  day-of-month field fires on the 1st, 16th and 31st, putting two runs one day
  apart.
- Image bitnamilegacy/etcd:3.6.4 pinned by digest, ships bash and etcdctl 3.6.4
  against the 3.6.11 servers.
- Compaction uses the MINIMUM revision across members, so a lagging member is
  never compacted past its own revision. Measured 2026-10-07: talos-cp-2 sat
  ~1.2M entries behind the leader with a frozen raft term and needed a reboot
  to rejoin.
- Defrag skips any member whose applied index lags the leader by 100k+, and
  runs one member at a time since defrag pauses that member's apply loop.
- Secret etcd-defrag-creds (SOPS/ksops, kube-system) carries the etcd CA plus a
  client certificate signed by the cluster's etcd CA, valid to 2036-10.
2026-10-07 17:12:39 +08:00
rock e4caa7e841 fix(etcd): make the defrag CronJob runnable and 15-day
The committed CronJob could never run, for two independent reasons:
- quay.io/coreos/etcd ships no /bin/sh, so command: [/bin/sh, -c] died with
  exec: "/bin/sh": no such file or directory
- it existed only on branch fix/etcd-defrag-cron, while the ArgoCD application
  cluster-maintenance tracks main (targetRevision: main), so the cluster never
  had the CronJob or its Secret

This revision fixes both and records the 2026-10-07 incident:
- image bitnamilegacy/etcd:3.6.4 pinned by digest (ships bash and etcdctl 3.6.4,
  matching the 3.6.11 servers)
- 15-day cadence by UTC epoch-day modulo; */15 in day-of-month fires on the 1st,
  16th and 31st, which puts two runs one day apart
- compacts to the MINIMUM revision across members, so a lagging member is never
  compacted past its own revision (measured: talos-cp-2 froze ~1.2M entries
  behind the leader and needed a reboot to rejoin)
- skips defrag on a member whose applied index lags the leader by 100k+
- documents that compact must precede defrag: compaction had stalled while the
  NOSPACE alarm was up, so dbSizeInUse read 100% of the file and defrag alone
  would have reclaimed nothing
2026-10-07 17:11:35 +08:00
harness 1ce9f86635 feat(etcd): weekly defrag CronJob to stay under the etcd backend quota
etcd's 2 GiB quota was reached on 2026-10-07 (backend 2.1 GiB, ~73 days of
churn). etcd raised NOSPACE and refused all writes, so kubelets could not post
node status: three nodes went NotReady and the tunnel origin pods on them
disappeared. Recovery was compact + defrag + alarm disarm per member.

The apiserver compacts every 5m, but compaction never shrinks the backend file -
only a defrag returns space, and nothing scheduled it. This adds:

- CronJob etcd-defrag (kube-system, Sundays 03:00): compact to the current
  revision, defrag each member sequentially, disarm NOSPACE, print before/after.
- Secret etcd-defrag-creds (SOPS/ksops, k8s/argocd/secrets): etcd CA plus a
  CN=etcd-defrag client cert signed by the cluster's etcd CA (expires 2036-10).

Applied by the existing apps: cluster-maintenance (directory) and 00-secrets
(ksops generator).
2026-10-07 13:37:45 +08:00
rock 2d9e3abee8 fix(oidc): match /proc/<pid>/comm instead of cmdline when signalling the API server
Exit code 143 proved the previous job killed itself: the script's own cmdline contains the
string 'kube-apiserver', so it matched its own process. Matching comm (== 'kube-apiserver')
and skipping $$ removes that failure mode. Staggered 2 minutes apart.
2026-10-07 04:07:37 +00:00
rock 9fa8d9cf60 fix(oidc): restart the apiservers by signalling the process, not by deleting the mirror pod
Static pods survive mirror-pod deletion, so the first bootstrap job had no effect.
These jobs share the host PID namespace and SIGTERM the kube-apiserver process itself,
staggered by 100s so only one control plane restarts at a time.
2026-10-07 03:59:22 +00:00
rock 2e4fad3bf7 fix(oidc): use curlimages/curl for the bootstrap job (bitnami/kubectl tag did not exist)
The first job could not pull its image; this one deletes the apiserver pods via the
in-cluster API with the mounted service-account token instead of a kubectl image.
2026-10-07 03:52:10 +00:00
rock 5d22691c3e chore(oidc): one-shot bootstrap - restart apiservers to initialise the OIDC authenticator
k8s/argocd/apps/99-oidc-bootstrap.yaml
2026-10-07 03:46:01 +00:00
rock 4eee161e0f chore(oidc): one-shot bootstrap - restart apiservers to initialise the OIDC authenticator
k8s/infra/oidc-bootstrap/bootstrap.yaml
2026-10-07 03:45:56 +00:00
rock 719fa77521 Merge pull request 'fix(secrets): populate the empty sops placeholders and drop the unused one' (#55) from fix/secrets-placeholders into main 2026-10-06 04:48:51 +00:00