Add Authentik configuration and related resources for improved authentication management

.env.example

@@ -9,4 +9,6 @@ K3S_NODE_TOKEN=your_token_here
 GITEA_RUNNER_TOKEN=your_token_here
 
 # Grafana admin password
-GRAFANA_ADMIN_PASSWORD=your_password_here
+GRAFANA_ADMIN_PASSWORD=your_password_here
+
+AUTHENTIK_PROXY_TOKEN=your_token_here

manifests/authentik-ingress.yaml

@@ -0,0 +1,29 @@
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: authentik-tls
+  namespace: authentik
+spec:
+  secretName: authentik-tls
+  issuerRef:
+    name: internal-ca
+    kind: ClusterIssuer
+  dnsNames:
+    - auth.home.arpa
+---
+apiVersion: traefik.io/v1alpha1
+kind: IngressRoute
+metadata:
+  name: authentik
+  namespace: authentik
+spec:
+  entryPoints:
+    - websecure
+  routes:
+    - match: Host(`auth.home.arpa`)
+      kind: Rule
+      services:
+        - name: authentik-server
+          port: 80
+  tls:
+    secretName: authentik-tls

manifests/authentik-middleware.yaml

@@ -0,0 +1,31 @@
+apiVersion: traefik.io/v1alpha1
+kind: Middleware
+metadata:
+  name: authentik-auth
+  namespace: authentik
+spec:
+  forwardAuth:
+    address: http://authentik-proxy-outpost.authentik.svc.cluster.local:9000/outpost.goauthentik.io/auth/traefik
+    trustForwardHeader: true
+    authResponseHeaders:
+      - X-authentik-username
+      - X-authentik-groups
+      - X-authentik-email
+      - X-authentik-name
+      - X-authentik-uid
+      - X-authentik-jwt
+      - X-authentik-meta-jwks
+      - X-authentik-meta-outpost
+      - X-authentik-meta-provider
+      - X-authentik-meta-app
+      - X-authentik-meta-version
+---
+apiVersion: traefik.io/v1alpha1
+kind: Middleware
+metadata:
+  name: lan-bypass
+  namespace: authentik
+spec:
+  ipAllowList:
+    sourceRange:
+      - 192.168.7.0/24

manifests/authentik-proxy-outpost.yaml

@@ -0,0 +1,53 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: authentik-proxy-outpost
+  namespace: authentik
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: authentik-proxy-outpost
+  namespace: authentik
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: authentik-proxy-outpost
+  template:
+    metadata:
+      labels:
+        app: authentik-proxy-outpost
+    spec:
+      serviceAccountName: authentik-proxy-outpost
+      containers:
+        - name: proxy
+          image: ghcr.io/goauthentik/proxy:2026.2.1
+          env:
+            - name: AUTHENTIK_HOST
+              value: "https://auth.home.arpa"
+            - name: AUTHENTIK_INSECURE
+              value: "true"
+            - name: AUTHENTIK_TOKEN
+              valueFrom:
+                secretKeyRef:
+                  name: authentik-proxy-token
+                  key: token
+          ports:
+            - containerPort: 9000
+              name: http
+            - containerPort: 9443
+              name: https
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: authentik-proxy-outpost
+  namespace: authentik
+spec:
+  selector:
+    app: authentik-proxy-outpost
+  ports:
+    - name: http
+      port: 9000
+      targetPort: 9000

manifests/authentik-proxy-secret.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+set -euo pipefail
+source "$(dirname "$0")/../.env"
+
+kubectl create secret generic authentik-proxy-token \
+  --namespace authentik \
+  --from-literal=token="${AUTHENTIK_PROXY_TOKEN}" \
+  --dry-run=client -o yaml | kubectl apply -f -

manifests/authentik-secret.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+# Run once to create the Authentik secret. Safe to re-run (dry-run + apply).
+kubectl create secret generic authentik-secrets \
+  --namespace authentik \
+  --from-literal=secret-key="$(openssl rand -base64 50)" \
+  --from-literal=postgresql-password="$(openssl rand -base64 24)" \
+  --dry-run=client -o yaml | kubectl apply -f -

manifests/traefik-dashboard-ingress.yaml

@@ -0,0 +1,48 @@
+# Traefik dashboard IngressRoute and TLS certificate for accessing the dashboard at https://traefik.home.arpa. The dashboard is protected by the authentik authentication middleware, with a bypass for LAN clients.
+# Apply: kubectl apply -f manifests/traefik-dashboard-ingress.yaml
+apiVersion: traefik.io/v1alpha1
+kind: IngressRoute
+metadata:
+  name: traefik-dashboard
+  namespace: traefik
+spec:
+  entryPoints:
+    - websecure
+  routes:
+    - match: Host(`traefik.home.arpa`) && PathPrefix(`/outpost.goauthentik.io`)
+      kind: Rule
+      services:
+        - name: authentik-proxy-outpost
+          namespace: authentik
+          port: 9000
+    - match: Host(`traefik.home.arpa`) && PathPrefix(`/dashboard`)
+      kind: Rule
+      middlewares:
+        - name: authentik-auth
+          namespace: authentik
+      services:
+        - name: api@internal
+          kind: TraefikService
+    - match: Host(`traefik.home.arpa`) && PathPrefix(`/api`)
+      kind: Rule
+      middlewares:
+        - name: authentik-auth
+          namespace: authentik
+      services:
+        - name: api@internal
+          kind: TraefikService
+  tls:
+    secretName: traefik-dashboard-tls
+---
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: traefik-dashboard-tls
+  namespace: traefik
+spec:
+  secretName: traefik-dashboard-tls
+  issuerRef:
+    name: internal-ca
+    kind: ClusterIssuer
+  dnsNames:
+    - traefik.home.arpa

values/authentik.yaml

@@ -0,0 +1,88 @@
+# authentik Helm values
+# Deploy:
+#   helm upgrade --install authentik authentik/authentik \
+#   --namespace authentik \
+#   --version 2026.2.1 \
+#   --values values/authentik.yaml \
+#   --wait --timeout 5m
+
+authentik:
+  secret_key: ""  # kept blank — comes from existingSecret via env below
+  existingSecret:
+    secretName: "" # kept blank — not used directly, but required to avoid Helm validation error
+  log_level: info
+  error_reporting:
+    enabled: false
+
+server:
+  env:
+    - name: AUTHENTIK_SECRET_KEY
+      valueFrom:
+        secretKeyRef:
+          name: authentik-secrets
+          key: secret-key
+    - name: AUTHENTIK_POSTGRESQL__PASSWORD
+      valueFrom:
+        secretKeyRef:
+          name: authentik-secrets
+          key: postgresql-password
+    - name: AUTHENTIK_POSTGRESQL__HOST
+      value: "authentik-postgresql"
+    - name: AUTHENTIK_POSTGRESQL__USER
+      value: "authentik"
+    - name: AUTHENTIK_POSTGRESQL__NAME
+      value: "authentik"
+
+worker:
+  env:
+    - name: AUTHENTIK_SECRET_KEY
+      valueFrom:
+        secretKeyRef:
+          name: authentik-secrets
+          key: secret-key
+    - name: AUTHENTIK_POSTGRESQL__PASSWORD
+      valueFrom:
+        secretKeyRef:
+          name: authentik-secrets
+          key: postgresql-password
+    - name: AUTHENTIK_POSTGRESQL__HOST
+      value: "authentik-postgresql"
+    - name: AUTHENTIK_POSTGRESQL__USER
+      value: "authentik"
+    - name: AUTHENTIK_POSTGRESQL__NAME
+      value: "authentik"
+
+postgresql:
+  enabled: true
+  auth:
+    username: authentik
+    database: authentik
+    existingSecret: authentik-secrets
+    secretKeys:
+      adminPasswordKey: postgresql-password
+      userPasswordKey: postgresql-password
+  primary:
+    persistence:
+      enabled: true
+    podAnnotations:
+      helm.sh/resource-policy: keep
+
+redis:
+  enabled: true
+  auth:
+    enabled: false
+
+additionalObjects:
+  - apiVersion: v1
+    kind: Service
+    metadata:
+      name: authentik-worker
+      namespace: authentik
+    spec:
+      selector:
+        app.kubernetes.io/component: worker
+        app.kubernetes.io/instance: authentik
+      ports:
+        - name: http
+          port: 9000
+          targetPort: 9000

values/pihole.yaml

@@ -79,4 +79,6 @@ dnsmasq:
     - address=/jdownloader.home.arpa/192.168.7.77
     - address=/glances.home.arpa/192.168.7.77
     - address=/glances-debian.home.arpa/192.168.7.77
-    - address=/ca.home.arpa/1
+    - address=/ca.home.arpa/192.168.7.77
+    - address=/auth.home.arpa/192.168.7.77
+    - address=/traefik.home.arpa/192.168.7.77

values/traefik.yaml

@@ -49,6 +49,10 @@ additionalArguments:
   - "--certificatesresolvers.letsencrypt.acme.email=nik.afiq98@ymail.com"
   - "--certificatesresolvers.letsencrypt.acme.storage=/data/traefik/acme.json"
 
+providers:
+  kubernetesCRD:
+    allowCrossNamespace: true
+
 volumes:
   - name: traefik-data
     hostPath:
@@ -60,4 +64,8 @@ logs:
   general:
     level: INFO
   access:
-    enabled: true
+    enabled: true
+
+api:
+  dashboard: true
+  insecure: false