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+# Authentik OIDC backend
+# ArgoCD-managed. BlueJay Lab.
+#
+# Stack:
+#   - PostgreSQL 16 StatefulSet (single replica, Longhorn RWO 5Gi)
+#   - Redis 7 Deployment (no persistence — session/cache only)
+#   - Authentik server + worker Deployments (image ghcr.io/goauthentik/server:2024.12.3)
+#   - Media PVC shared between server + worker (Longhorn RWO 2Gi)
+#   - Certificate via step-ca-acme ClusterIssuer
+#   - Traefik IngressRoute at id.iamworkin.lan
+#
+# Secrets come from 1Password item "authentik-credentials" (IAmWorkin vault, id y6i74ch22q5wvm7znquq4nhhcu)
+# via the OnePasswordItem CRD, materialized into k8s Secret authentik/authentik-credentials.
+#
+# Why the discovery URL is /application/o/pimanager/ : Authentik issues per-application OIDC providers.
+# The pimanager OIDC application/provider is created after the cluster pods are healthy (manual or
+# via API once the bootstrap token is available — see Notes substrate).
+
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: authentik
+  labels:
+    app.kubernetes.io/part-of: bluejay-infra
+
+---
+# 1Password operator pulls the authentik-credentials item into a k8s Secret of the same name.
+# Field labels in 1P become Secret keys: AUTHENTIK_SECRET_KEY, POSTGRES_PASSWORD, REDIS_PASSWORD,
+# BOOTSTRAP_ADMIN_PASSWORD, BOOTSTRAP_ADMIN_TOKEN, BOOTSTRAP_ADMIN_EMAIL.
+apiVersion: onepassword.com/v1
+kind: OnePasswordItem
+metadata:
+  name: authentik-credentials
+  namespace: authentik
+spec:
+  itemPath: "vaults/IAmWorkin/items/authentik-credentials"
+
+---
+# Shared media volume for server + worker pods.
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: authentik-media
+  namespace: authentik
+spec:
+  storageClassName: longhorn
+  accessModes: [ReadWriteOnce]
+  resources:
+    requests:
+      storage: 2Gi
+
+---
+# PostgreSQL 16 StatefulSet — Authentik's primary store.
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: authentik-postgres
+  namespace: authentik
+  labels:
+    app: authentik-postgres
+    argocd.argoproj.io/instance: infra-authentik
+spec:
+  persistentVolumeClaimRetentionPolicy:
+    whenDeleted: Retain
+    whenScaled: Retain
+  podManagementPolicy: OrderedReady
+  serviceName: authentik-postgres
+  replicas: 1
+  revisionHistoryLimit: 10
+  selector:
+    matchLabels:
+      app: authentik-postgres
+  template:
+    metadata:
+      labels:
+        app: authentik-postgres
+    spec:
+      containers:
+        - name: postgres
+          image: postgres:16-alpine
+          ports:
+            - containerPort: 5432
+              name: postgres
+          env:
+            - name: POSTGRES_USER
+              value: authentik
+            - name: POSTGRES_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: authentik-credentials
+                  key: POSTGRES_PASSWORD
+            - name: POSTGRES_DB
+              value: authentik
+            - name: POSTGRES_INITDB_ARGS
+              value: "--encoding=UTF-8 --lc-collate=C --lc-ctype=C"
+            - name: PGDATA
+              value: /var/lib/postgresql/data/pgdata
+          readinessProbe:
+            exec:
+              command: ["pg_isready", "-U", "authentik"]
+            initialDelaySeconds: 5
+            periodSeconds: 5
+          livenessProbe:
+            exec:
+              command: ["pg_isready", "-U", "authentik"]
+            initialDelaySeconds: 30
+            periodSeconds: 30
+          resources:
+            requests: { cpu: 100m, memory: 256Mi }
+            limits: { cpu: 1000m, memory: 1Gi }
+          volumeMounts:
+            - name: pgdata
+              mountPath: /var/lib/postgresql/data
+  volumeClaimTemplates:
+    - metadata:
+        name: pgdata
+      spec:
+        storageClassName: longhorn
+        accessModes: [ReadWriteOnce]
+        volumeMode: Filesystem
+        resources:
+          requests:
+            storage: 5Gi
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: authentik-postgres
+  namespace: authentik
+spec:
+  clusterIP: None
+  selector:
+    app: authentik-postgres
+  ports:
+    - name: postgres
+      port: 5432
+      targetPort: 5432
+
+---
+# Redis 7 — session storage + Celery broker. No persistence needed (cache).
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: authentik-redis
+  namespace: authentik
+  labels:
+    app: authentik-redis
+    argocd.argoproj.io/instance: infra-authentik
+spec:
+  replicas: 1
+  strategy:
+    type: Recreate
+  selector:
+    matchLabels:
+      app: authentik-redis
+  template:
+    metadata:
+      labels:
+        app: authentik-redis
+    spec:
+      containers:
+        - name: redis
+          image: redis:7-alpine
+          args:
+            - "--save"
+            - ""
+            - "--appendonly"
+            - "no"
+            - "--requirepass"
+            - "$(REDIS_PASSWORD)"
+          env:
+            - name: REDIS_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: authentik-credentials
+                  key: REDIS_PASSWORD
+          ports:
+            - containerPort: 6379
+              name: redis
+          readinessProbe:
+            tcpSocket: { port: 6379 }
+            initialDelaySeconds: 5
+            periodSeconds: 5
+          livenessProbe:
+            tcpSocket: { port: 6379 }
+            initialDelaySeconds: 30
+            periodSeconds: 30
+          resources:
+            requests: { cpu: 50m, memory: 64Mi }
+            limits: { cpu: 500m, memory: 256Mi }
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: authentik-redis
+  namespace: authentik
+spec:
+  selector:
+    app: authentik-redis
+  ports:
+    - name: redis
+      port: 6379
+      targetPort: 6379
+
+---
+# Authentik server Deployment — HTTP frontend on :9000.
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: authentik-server
+  namespace: authentik
+  labels:
+    app: authentik-server
+    argocd.argoproj.io/instance: infra-authentik
+spec:
+  replicas: 1
+  strategy:
+    type: Recreate  # shares /media RWO PVC with worker
+  selector:
+    matchLabels:
+      app: authentik-server
+  template:
+    metadata:
+      labels:
+        app: authentik-server
+    spec:
+      containers:
+        - name: server
+          image: ghcr.io/goauthentik/server:2024.12.3
+          args: ["server"]
+          ports:
+            - containerPort: 9000
+              name: http
+            - containerPort: 9443
+              name: https
+          env:
+            - name: AUTHENTIK_SECRET_KEY
+              valueFrom:
+                secretKeyRef:
+                  name: authentik-credentials
+                  key: AUTHENTIK_SECRET_KEY
+            - name: AUTHENTIK_REDIS__HOST
+              value: authentik-redis
+            - name: AUTHENTIK_REDIS__PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: authentik-credentials
+                  key: REDIS_PASSWORD
+            - name: AUTHENTIK_POSTGRESQL__HOST
+              value: authentik-postgres
+            - name: AUTHENTIK_POSTGRESQL__NAME
+              value: authentik
+            - name: AUTHENTIK_POSTGRESQL__USER
+              value: authentik
+            - name: AUTHENTIK_POSTGRESQL__PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: authentik-credentials
+                  key: POSTGRES_PASSWORD
+            - name: AUTHENTIK_BOOTSTRAP_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: authentik-credentials
+                  key: BOOTSTRAP_ADMIN_PASSWORD
+            - name: AUTHENTIK_BOOTSTRAP_TOKEN
+              valueFrom:
+                secretKeyRef:
+                  name: authentik-credentials
+                  key: BOOTSTRAP_ADMIN_TOKEN
+            - name: AUTHENTIK_BOOTSTRAP_EMAIL
+              valueFrom:
+                secretKeyRef:
+                  name: authentik-credentials
+                  key: BOOTSTRAP_ADMIN_EMAIL
+            - name: AUTHENTIK_DISABLE_UPDATE_CHECK
+              value: "true"
+            - name: AUTHENTIK_ERROR_REPORTING__ENABLED
+              value: "false"
+            - name: AUTHENTIK_LOG_LEVEL
+              value: info
+          readinessProbe:
+            httpGet:
+              path: /-/health/ready/
+              port: 9000
+            initialDelaySeconds: 30
+            periodSeconds: 10
+            timeoutSeconds: 5
+            failureThreshold: 6
+          livenessProbe:
+            httpGet:
+              path: /-/health/live/
+              port: 9000
+            initialDelaySeconds: 60
+            periodSeconds: 30
+            timeoutSeconds: 10
+            failureThreshold: 3
+          resources:
+            requests: { cpu: 150m, memory: 512Mi }
+            limits: { cpu: 1500m, memory: 1Gi }
+          volumeMounts:
+            - name: media
+              mountPath: /media
+      volumes:
+        - name: media
+          persistentVolumeClaim:
+            claimName: authentik-media
+
+---
+# Authentik worker Deployment — runs Celery background tasks.
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: authentik-worker
+  namespace: authentik
+  labels:
+    app: authentik-worker
+    argocd.argoproj.io/instance: infra-authentik
+spec:
+  replicas: 1
+  strategy:
+    type: Recreate  # shares /media RWO PVC with server
+  selector:
+    matchLabels:
+      app: authentik-worker
+  template:
+    metadata:
+      labels:
+        app: authentik-worker
+    spec:
+      containers:
+        - name: worker
+          image: ghcr.io/goauthentik/server:2024.12.3
+          args: ["worker"]
+          env:
+            - name: AUTHENTIK_SECRET_KEY
+              valueFrom:
+                secretKeyRef:
+                  name: authentik-credentials
+                  key: AUTHENTIK_SECRET_KEY
+            - name: AUTHENTIK_REDIS__HOST
+              value: authentik-redis
+            - name: AUTHENTIK_REDIS__PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: authentik-credentials
+                  key: REDIS_PASSWORD
+            - name: AUTHENTIK_POSTGRESQL__HOST
+              value: authentik-postgres
+            - name: AUTHENTIK_POSTGRESQL__NAME
+              value: authentik
+            - name: AUTHENTIK_POSTGRESQL__USER
+              value: authentik
+            - name: AUTHENTIK_POSTGRESQL__PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: authentik-credentials
+                  key: POSTGRES_PASSWORD
+            - name: AUTHENTIK_DISABLE_UPDATE_CHECK
+              value: "true"
+            - name: AUTHENTIK_ERROR_REPORTING__ENABLED
+              value: "false"
+            - name: AUTHENTIK_LOG_LEVEL
+              value: info
+          resources:
+            requests: { cpu: 100m, memory: 256Mi }
+            limits: { cpu: 1000m, memory: 768Mi }
+          volumeMounts:
+            - name: media
+              mountPath: /media
+      volumes:
+        - name: media
+          persistentVolumeClaim:
+            claimName: authentik-media
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: authentik-server
+  namespace: authentik
+spec:
+  selector:
+    app: authentik-server
+  ports:
+    - name: http
+      port: 9000
+      targetPort: 9000
+    - name: https
+      port: 9443
+      targetPort: 9443
+
+---
+# step-ca leaf certificate for id.iamworkin.lan.
+# step-ca container resolver uses pfSense Unbound, so the public A record for id.iamworkin.lan
+# MUST exist before this Certificate is applied (cert-manager HTTP-01 will silently 2h-backoff
+# otherwise). Added 2026-05-25 via scripts/pfsense-add-id-host.py.
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: authentik-tls
+  namespace: authentik
+spec:
+  secretName: authentik-tls
+  dnsNames:
+    - id.iamworkin.lan
+  issuerRef:
+    name: step-ca-acme
+    kind: ClusterIssuer
+
+---
+apiVersion: traefik.io/v1alpha1
+kind: IngressRoute
+metadata:
+  name: authentik
+  namespace: authentik
+spec:
+  entryPoints: [websecure]
+  routes:
+    - match: Host(`id.iamworkin.lan`)
+      kind: Rule
+      services:
+        - name: authentik-server
+          port: 9000
+  tls:
+    secretName: authentik-tls