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Author SHA1 Message Date
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 e150969070 Merge pull request #59 from fix/etcd-defrag-main 2026-10-12 12:27:28 +00:00
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marks superseded revisions free inside the file, and only defrag returns that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 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
8 changed files with 467 additions and 0 deletions
+36
View File
@@ -0,0 +1,36 @@
apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
name: azhi-riotpiao
namespace: argocd
annotations:
argocd.argoproj.io/sync-wave: '8'
spec:
project: homelab
source:
# Private GitHub. The read-only credential is Secret azhi-infra-github in
# namespace argocd, created out-of-band.
repoURL: https://github.com/ToyoGlobal/azhi-infra.git
# The repository's default branch. It is not `main`: this repo's work
# happens on the staging slice branch, and `main` is behind it.
targetRevision: feat/azi-riotpiao-cnpg
# One directory, because ArgoCD reads a single path per source. That
# directory is a root kustomization over foundation, postgres and
# azhi-server.
path: k8s/overlays/azi-riotpiao
destination:
server: https://kubernetes.default.svc
namespace: azi-riotpiao
syncPolicy:
automated:
prune: true
selfHeal: true
syncOptions:
- CreateNamespace=true
# The two Secrets this namespace needs are credentials, so they are created
# by hand and NOT by this Application:
# acr-pull — the private Alibaba ACR pull credential
# azhi-riotpiao-app-env — DB credentials, JWT secrets, AES key
# A missing imagePullSecret fails the pod outright and a missing app-env
# Secret leaves it in CreateContainerConfigError, which is the intended
# loud failure rather than a pod that runs against unknown values.
+20
View File
@@ -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
+6
View File
@@ -16,6 +16,12 @@ spec:
- https://github.com/Riotpiaole/Poimen-memory.git
- https://github.com/Riotpiaole/Poimen-workflows.git
- https://github.com/Riotpiaole/poimen*.git
# ToyoGlobal (GitHub, private). The azhi-infra Application reads its
# manifests from here, so the URL must be listed or ArgoCD rejects the
# Application with "repository not permitted". A read-only credential for
# this repo lives in Secret azhi-infra-github in namespace argocd; it is
# created out-of-band and is not committed, because it is a credential.
- https://github.com/ToyoGlobal/azhi-infra.git
# In-cluster Forgejo repos — explicit allowlist (no wildcard)
- https://forgejo.riotpiao.com/riotpiao-poimen/homelab.git
- https://forgejo.riotpiao.com/riotpiao-poimen/homelab-frontend.git
@@ -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:IEmZe505SwkW3U5vmRtFxR6PpuSFGWEHflUZwyhSODzYG1zLM8olVWDtH+yUVI54kLXxTtcpMkKrTBjpAxHG8zUTLPdTCVzPMq6U20jH4PYFMzoldnSgpRl/eiADUmE4I32CBbPdM5nkPvjVEYMmRafEGyJctjG6Shhh/sUO1yE9A+h1R7o3UCRPttWTozSKN4dPi75v1TSAOLyXqvQYl5Ea9iKW47ea7Q+XTcoKfMPXsTJp44kiZnVW0VT/7xNydR7AVWJJzYltY5380j0Ho+7PfNd+QqmdodkaZPS4b0PaoinMiZ40JnChGVhdS91j3IkUlU1g/+G2iVnPR9KB07xqRubqiASxIvpSaSCeYl3rR7+dXYX18VpWcWnJ6XoREoqxJiqmMQWYSROYDTd4G/zs4Usuh5r0wIodmCjud+g89mmXFtH0PbsMCVvZDUswjVfeT2PUBm036TXlxF/1aAy2GDqycbPgJgDLyw9tdiQUZe2iA+Z/Wx80qgQjmmqCaw77cDergLFj9KnByl3Tinwfm+IWFeQiDW+fwSzz+/vrpl55BkSVkVhw7r2Jd6zyg4VtLVXbxYhzdNz695N+fjkZHuPE5tCwr4WCzAg3vSS9hA7IHo8k93WO8s6+KlyjuwTdjPIYZghebO4ktwdqvhvuqxv8Nzwpc5J7Z2H2IChjXg==,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
+1
View File
@@ -37,3 +37,4 @@ files:
- oauth2-credentials.enc.yaml
- forgejo-registry-token.enc.yaml
- pi-sandbox-secrets.enc.yaml
- etcd-defrag-creds.enc.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 $rc
resources:
requests: { cpu: 10m, memory: 32Mi }
limits: { cpu: 200m, memory: 128Mi }
volumeMounts:
- name: creds
mountPath: /etc/etcd
readOnly: true
volumes:
- name: creds
secret:
secretName: etcd-defrag-creds
defaultMode: 0444
+59
View File
@@ -0,0 +1,59 @@
# One-shot bootstrap: restart the control-plane apiservers ONCE so they pick up the
# OIDC authenticator (they last started before the Authentik provider existed, so OIDC
# tokens were never accepted -> every login got 401). Delete this whole directory after.
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: oidc-bootstrap
namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
name: oidc-bootstrap
namespace: kube-system
rules:
- apiGroups: [""]
resources: ["pods"]
verbs: ["get", "list", "delete"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
name: oidc-bootstrap
namespace: kube-system
subjects:
- kind: ServiceAccount
name: oidc-bootstrap
namespace: kube-system
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: oidc-bootstrap
---
apiVersion: batch/v1
kind: Job
metadata:
name: oidc-bootstrap-restart-apiserver-v2
namespace: kube-system
spec:
backoffLimit: 4
ttlSecondsAfterFinished: 7200
template:
spec:
serviceAccountName: oidc-bootstrap
restartPolicy: Never
containers:
- name: restart
image: docker.io/curlimages/curl:8.22.0
command: ["/bin/sh", "-c"]
args:
- |
set -u
TOKEN=$(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"
@@ -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"