feat(authentik/genmachine): HA reliability improvements#1794
Open
ixxeL2097 wants to merge 1 commit into
Open
Conversation
- Scale server and worker to 2 replicas for redundancy - Add PodDisruptionBudget (minAvailable: 1) for both server and worker - Set RollingUpdate strategy with maxUnavailable: 0 to prevent downtime during rollouts - Add soft pod anti-affinity to spread across nodes - Add topologySpreadConstraints (ScheduleAnyway) for best-effort node distribution - Set resource requests/limits for server (200m/512Mi → 1/1Gi) and worker (100m/256Mi → 500m/512Mi) - Remove dead redis subchart config (chart 2026.x has no redis subchart) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Contributor
--- main/authentik_gitops_manifests_authentik_genmachine_app_manifest_main.yaml 2026-05-14 21:05:05.007442338 +0000
+++ pr/authentik_gitops_manifests_authentik_genmachine_app_manifest_pr.yaml 2026-05-14 21:05:03.926419593 +0000
@@ -41,20 +41,66 @@
helm.sh/chart: postgresql-16.7.27
app.kubernetes.io/component: primary
spec:
maxUnavailable: 1
selector:
matchLabels:
app.kubernetes.io/instance: authentik
app.kubernetes.io/name: postgresql
app.kubernetes.io/component: primary
---
+# Source: authentik/charts/authentik/templates/server/pdb.yaml
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+ name: authentik-server
+ namespace: "default"
+ labels:
+ helm.sh/chart: "authentik-2026.2.3"
+ app.kubernetes.io/name: "authentik"
+ app.kubernetes.io/instance: "authentik"
+ app.kubernetes.io/component: "server"
+ app.kubernetes.io/managed-by: "Helm"
+ app.kubernetes.io/part-of: "authentik"
+ app.kubernetes.io/version: "2026.2.3"
+
+spec:
+ minAvailable: 1
+ selector:
+ matchLabels:
+ app.kubernetes.io/name: "authentik"
+ app.kubernetes.io/instance: "authentik"
+ app.kubernetes.io/component: "server"
+---
+# Source: authentik/charts/authentik/templates/worker/pdb.yaml
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+ name: authentik-worker
+ namespace: "default"
+ labels:
+ helm.sh/chart: "authentik-2026.2.3"
+ app.kubernetes.io/name: "authentik"
+ app.kubernetes.io/instance: "authentik"
+ app.kubernetes.io/component: "worker"
+ app.kubernetes.io/managed-by: "Helm"
+ app.kubernetes.io/part-of: "authentik"
+ app.kubernetes.io/version: "2026.2.3"
+
+spec:
+ minAvailable: 1
+ selector:
+ matchLabels:
+ app.kubernetes.io/name: "authentik"
+ app.kubernetes.io/instance: "authentik"
+ app.kubernetes.io/component: "worker"
+---
# Source: authentik/charts/authentik/charts/postgresql/templates/serviceaccount.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
name: authentik-postgresql
namespace: "default"
labels:
app.kubernetes.io/instance: authentik
app.kubernetes.io/managed-by: Helm
app.kubernetes.io/name: postgresql
@@ -416,21 +462,26 @@
namespace: "default"
labels:
helm.sh/chart: "authentik-2026.2.3"
app.kubernetes.io/name: "authentik"
app.kubernetes.io/instance: "authentik"
app.kubernetes.io/component: "server"
app.kubernetes.io/managed-by: "Helm"
app.kubernetes.io/part-of: "authentik"
app.kubernetes.io/version: "2026.2.3"
spec:
- replicas: 1
+ strategy:
+ type: RollingUpdate
+ rollingUpdate:
+ maxSurge: 1
+ maxUnavailable: 0
+ replicas: 2
revisionHistoryLimit: 3
selector:
matchLabels:
app.kubernetes.io/name: "authentik"
app.kubernetes.io/instance: "authentik"
app.kubernetes.io/component: "server"
template:
metadata:
labels:
helm.sh/chart: "authentik-2026.2.3"
@@ -524,32 +575,44 @@
failureThreshold: 60
httpGet:
path: '/-/health/live/'
port: http
initialDelaySeconds: 5
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 3
resources:
- {}
+ limits:
+ cpu: 1000m
+ memory: 1Gi
+ requests:
+ cpu: 200m
+ memory: 512Mi
affinity:
podAntiAffinity:
preferredDuringSchedulingIgnoredDuringExecution:
- - weight: 100
- podAffinityTerm:
- labelSelector:
- matchLabels:
- app.kubernetes.io/name: "authentik"
- app.kubernetes.io/instance: "authentik"
- app.kubernetes.io/component: "server"
- topologyKey: kubernetes.io/hostname
+ - podAffinityTerm:
+ labelSelector:
+ matchLabels:
+ app.kubernetes.io/component: server
+ app.kubernetes.io/name: authentik
+ topologyKey: kubernetes.io/hostname
+ weight: 100
+ topologySpreadConstraints:
+ - labelSelector:
+ matchLabels:
+ app.kubernetes.io/component: server
+ app.kubernetes.io/name: authentik
+ maxSkew: 1
+ topologyKey: kubernetes.io/hostname
+ whenUnsatisfiable: ScheduleAnyway
volumes:
- name: secrets
secret:
secretName: authentik-key
- name: pgsql-creds
secret:
secretName: authentik-pgsql-creds
enableServiceLinks: true
---
# Source: authentik/charts/authentik/templates/worker/deployment.yaml
@@ -560,21 +623,26 @@
namespace: "default"
labels:
helm.sh/chart: "authentik-2026.2.3"
app.kubernetes.io/name: "authentik"
app.kubernetes.io/instance: "authentik"
app.kubernetes.io/component: "worker"
app.kubernetes.io/managed-by: "Helm"
app.kubernetes.io/part-of: "authentik"
app.kubernetes.io/version: "2026.2.3"
spec:
- replicas: 1
+ strategy:
+ type: RollingUpdate
+ rollingUpdate:
+ maxSurge: 1
+ maxUnavailable: 0
+ replicas: 2
revisionHistoryLimit: 3
selector:
matchLabels:
app.kubernetes.io/name: "authentik"
app.kubernetes.io/instance: "authentik"
app.kubernetes.io/component: "worker"
template:
metadata:
labels:
helm.sh/chart: "authentik-2026.2.3"
@@ -669,32 +737,44 @@
exec:
command:
- ak
- healthcheck
failureThreshold: 60
initialDelaySeconds: 30
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 3
resources:
- {}
+ limits:
+ cpu: 500m
+ memory: 512Mi
+ requests:
+ cpu: 100m
+ memory: 256Mi
affinity:
podAntiAffinity:
preferredDuringSchedulingIgnoredDuringExecution:
- - weight: 100
- podAffinityTerm:
- labelSelector:
- matchLabels:
- app.kubernetes.io/name: "authentik"
- app.kubernetes.io/instance: "authentik"
- app.kubernetes.io/component: "worker"
- topologyKey: kubernetes.io/hostname
+ - podAffinityTerm:
+ labelSelector:
+ matchLabels:
+ app.kubernetes.io/component: worker
+ app.kubernetes.io/name: authentik
+ topologyKey: kubernetes.io/hostname
+ weight: 100
+ topologySpreadConstraints:
+ - labelSelector:
+ matchLabels:
+ app.kubernetes.io/component: worker
+ app.kubernetes.io/name: authentik
+ maxSkew: 1
+ topologyKey: kubernetes.io/hostname
+ whenUnsatisfiable: ScheduleAnyway
volumes:
- name: secrets
secret:
secretName: authentik-key
- name: pgsql-creds
secret:
secretName: authentik-pgsql-creds
- name: blueprints-cm-authentik-blueprints
configMap:
name: authentik-blueprints
|
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
minAvailable: 1) on both server and worker — prevents eviction from taking the last podmaxUnavailable: 0/maxSurge: 1— zero-downtime deploysScheduleAnyway) — best-effort spread across nodes200m/512Mi→1000m/1Gi) and worker (100m/256Mi→500m/512Mi)redis:config — chart 2026.x has no redis subchart, this block had no effectNotes
Test plan
kubectl get pods -n authentikshows 2 server + 2 worker pods on different nodeskubectl get pdb -n authentikshows 2 PDBs with ALLOWED DISRUPTIONS = 1🤖 Generated with Claude Code