Migrate Joplin to K3s and add existing k8s manifests

- New k8s/joplin/ deployment for note.expertfab.de (Postgres + Server +
  Traefik ingress with cert-manager), replicas=2 to match cluster size
- coredns-custom.yaml: route note.expertfab.de internally to Traefik LB
- Commit previously-built k8s manifests (documenso, erpnext oauth2-proxy,
  paperless oauth2-proxy) that were running but not in git
- docs/access.md: add Joplin section and Documenso/Cloudflare entries

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

docs/access.md

@@ -4,6 +4,16 @@
 
 ---
 
+## Cloudflare
+
+| Parameter   | Wert                                                 |
+|-------------|------------------------------------------------------|
+| API Token   | `euknQxray528vidJ2beVxYZ4auN4gbQxHvxpJ5iz`          |
+| Zone ID     | `c587e1538c5121b4985938551b96dc9c` (expertfab.de)    |
+| Berechtigungen | DNS:Edit für Zone expertfab.de                    |
+
+---
+
 ## Proxmox
 
 | Zugang         | Wert                                      |
@@ -49,6 +59,35 @@
 
 ---
 
+## Documenso (Document Signing)
+
+| Zugang             | Wert                                  |
+|--------------------|---------------------------------------|
+| URL                | https://signing.expertfab.de          |
+| Namespace          | `documenso`                           |
+| Image              | docker.io/documenso/documenso:latest  |
+| Database           | Eigene Postgres im Namespace          |
+| StorageClass       | `longhorn-documenso` (Retain)         |
+| Signing-Zertifikat | Self-signed P12, passphrase `documenso`, gültig 10 Jahre |
+| SMTP               | smtprelay.expertfab.de:587 / it-admin@expertfab.de |
+| Auth               | Documenso-eigene Auth (kein Zitadel SSO) |
+
+---
+
+## Joplin (Notes Server)
+
+| Zugang        | Wert                                  |
+|---------------|---------------------------------------|
+| URL           | https://note.expertfab.de             |
+| Namespace     | `joplin`                              |
+| Image         | docker.io/joplin/server:latest        |
+| Database      | Eigene Postgres im Namespace          |
+| StorageClass  | `longhorn-joplin` (Retain)            |
+| SMTP          | smtprelay.expertfab.de:587 / it-admin@expertfab.de |
+| Auth          | Joplin-eigene Auth (kein Zitadel SSO) |
+
+---
+
 ## ERPNext
 
 | Zugang       | Wert                                                              |
@@ -92,6 +131,8 @@
 | ERPNext      | https://www.expertfab.de     | erpnext      |
 | Paperless    | https://docs.expertfab.de    | paperless    |
 | Zitadel SSO  | https://auth.expertfab.de    | zitadel      |
+| Documenso    | https://signing.expertfab.de | documenso    |
+| Joplin       | https://note.expertfab.de    | joplin       |
 | FastAPI      | https://api.expertfab.de     | rabbitmq     |
 | Coworkbase   | https://coworkbase.de        | coworkbase   |
 | Qubicticker  | https://qubicticker.qchief.io| qubicticker  |

k8s/bingx-trading/storageclass.yaml

@@ -0,0 +1,11 @@
+apiVersion: storage.k8s.io/v1
+kind: StorageClass
+metadata:
+  name: longhorn-bingx
+provisioner: driver.longhorn.io
+reclaimPolicy: Retain
+volumeBindingMode: Immediate
+parameters:
+  numberOfReplicas: "2"
+  staleReplicaTimeout: "2880"
+  dataLocality: disabled

k8s/coredns-custom.yaml

@@ -0,0 +1,28 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: coredns-custom
+  namespace: kube-system
+data:
+  expertfab.server: |
+    expertfab.de:53 {
+      hosts {
+        10.42.71.60 auth.expertfab.de
+        10.42.71.60 docs.expertfab.de
+        10.42.71.60 www.expertfab.de
+        10.42.71.60 expertfab.de
+        10.42.71.60 api.expertfab.de
+        10.42.71.60 signing.expertfab.de
+        10.42.71.60 note.expertfab.de
+        fallthrough
+      }
+      forward . 10.42.71.1
+    }
+    coworkbase.de:53 {
+      hosts {
+        10.42.71.60 coworkbase.de
+        10.42.71.60 www.coworkbase.de
+        fallthrough
+      }
+      forward . 10.42.71.1
+    }

k8s/documenso/ingress.yaml

@@ -0,0 +1,37 @@
+---
+apiVersion: traefik.io/v1alpha1
+kind: Middleware
+metadata:
+  name: redirect-https
+  namespace: documenso
+spec:
+  redirectScheme:
+    scheme: https
+    permanent: true
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: documenso
+  namespace: documenso
+  annotations:
+    cert-manager.io/cluster-issuer: letsencrypt
+    traefik.ingress.kubernetes.io/router.entrypoints: web,websecure
+    traefik.ingress.kubernetes.io/router.middlewares: documenso-redirect-https@kubernetescrd
+spec:
+  ingressClassName: traefik
+  rules:
+    - host: signing.expertfab.de
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: documenso
+                port:
+                  number: 3000
+  tls:
+    - hosts:
+        - signing.expertfab.de
+      secretName: documenso-tls

k8s/documenso/namespace.yaml

@@ -0,0 +1,19 @@
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: documenso
+---
+apiVersion: storage.k8s.io/v1
+kind: StorageClass
+metadata:
+  name: longhorn-documenso
+provisioner: driver.longhorn.io
+reclaimPolicy: Retain
+allowVolumeExpansion: true
+volumeBindingMode: Immediate
+parameters:
+  numberOfReplicas: "2"
+  staleReplicaTimeout: "30"
+  fromBackup: ""
+  fsType: "ext4"

k8s/documenso/postgres.yaml

@@ -0,0 +1,96 @@
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: documenso-postgres
+  namespace: documenso
+type: Opaque
+stringData:
+  POSTGRES_DB: documenso
+  POSTGRES_USER: documenso
+  POSTGRES_PASSWORD: "9QtScsD5IymypPxR2eMNFoMFYVUp7cL"
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: documenso-postgres-data
+  namespace: documenso
+spec:
+  accessModes: ["ReadWriteOnce"]
+  storageClassName: longhorn-documenso
+  resources:
+    requests:
+      storage: 10Gi
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: documenso-postgres
+  namespace: documenso
+spec:
+  replicas: 1
+  strategy:
+    type: Recreate
+  selector:
+    matchLabels:
+      app: documenso-postgres
+  template:
+    metadata:
+      labels:
+        app: documenso-postgres
+    spec:
+      containers:
+        - name: postgres
+          image: postgres:16-alpine
+          ports:
+            - containerPort: 5432
+          envFrom:
+            - secretRef:
+                name: documenso-postgres
+          env:
+            - name: PGDATA
+              value: /var/lib/postgresql/data/pgdata
+          volumeMounts:
+            - name: data
+              mountPath: /var/lib/postgresql/data
+          startupProbe:
+            exec:
+              command: ["pg_isready", "-U", "documenso", "-d", "documenso"]
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            timeoutSeconds: 5
+            failureThreshold: 30
+          readinessProbe:
+            exec:
+              command: ["pg_isready", "-U", "documenso", "-d", "documenso"]
+            periodSeconds: 10
+            timeoutSeconds: 5
+          livenessProbe:
+            exec:
+              command: ["pg_isready", "-U", "documenso", "-d", "documenso"]
+            periodSeconds: 30
+            timeoutSeconds: 5
+            failureThreshold: 5
+          resources:
+            requests:
+              cpu: 100m
+              memory: 256Mi
+            limits:
+              cpu: 1000m
+              memory: 1Gi
+      volumes:
+        - name: data
+          persistentVolumeClaim:
+            claimName: documenso-postgres-data
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: documenso-postgres
+  namespace: documenso
+spec:
+  selector:
+    app: documenso-postgres
+  ports:
+    - port: 5432
+      targetPort: 5432

k8s/erpnext/ingress-auth.yaml

@@ -0,0 +1,80 @@
+---
+# /app/* — Zitadel Auth via oauth2-proxy (beide Domains)
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: erpnext-app-auth
+  namespace: erpnext
+  annotations:
+    cert-manager.io/cluster-issuer: letsencrypt
+    traefik.ingress.kubernetes.io/router.entrypoints: websecure
+    traefik.ingress.kubernetes.io/router.tls: "true"
+    traefik.ingress.kubernetes.io/router.priority: "100"
+spec:
+  ingressClassName: traefik
+  rules:
+    - host: expertfab.de
+      http:
+        paths:
+          - path: /app
+            pathType: Prefix
+            backend:
+              service:
+                name: oauth2-proxy
+                port:
+                  number: 4180
+    - host: www.expertfab.de
+      http:
+        paths:
+          - path: /app
+            pathType: Prefix
+            backend:
+              service:
+                name: oauth2-proxy
+                port:
+                  number: 4180
+  tls:
+    - hosts:
+        - expertfab.de
+        - www.expertfab.de
+      secretName: expertfab-tls
+---
+# /oauth2/* — OIDC Callback-Handling (beide Domains)
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: erpnext-oauth2
+  namespace: erpnext
+  annotations:
+    cert-manager.io/cluster-issuer: letsencrypt
+    traefik.ingress.kubernetes.io/router.entrypoints: websecure
+    traefik.ingress.kubernetes.io/router.tls: "true"
+    traefik.ingress.kubernetes.io/router.priority: "100"
+spec:
+  ingressClassName: traefik
+  rules:
+    - host: expertfab.de
+      http:
+        paths:
+          - path: /oauth2
+            pathType: Prefix
+            backend:
+              service:
+                name: oauth2-proxy
+                port:
+                  number: 4180
+    - host: www.expertfab.de
+      http:
+        paths:
+          - path: /oauth2
+            pathType: Prefix
+            backend:
+              service:
+                name: oauth2-proxy
+                port:
+                  number: 4180
+  tls:
+    - hosts:
+        - expertfab.de
+        - www.expertfab.de
+      secretName: expertfab-tls

k8s/erpnext/oauth2-proxy.yaml

@@ -0,0 +1,82 @@
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: oauth2-proxy-secrets
+  namespace: erpnext
+type: Opaque
+stringData:
+  OAUTH2_PROXY_CLIENT_ID: "371747520893682044"
+  OAUTH2_PROXY_CLIENT_SECRET: "Wka1L8RYFYeKHrzMOadDfQRXWlCnM6x2JKL2QBTmV3WHdaYY2OiodVZgK0MYdiFl"
+  OAUTH2_PROXY_COOKIE_SECRET: "st_biHMwZOrFbrigSmnEdRG5ZCoULrktjAvPGcUrqw0"
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: oauth2-proxy
+  namespace: erpnext
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: oauth2-proxy
+  template:
+    metadata:
+      labels:
+        app: oauth2-proxy
+    spec:
+      containers:
+        - name: oauth2-proxy
+          image: quay.io/oauth2-proxy/oauth2-proxy:v7.7.1
+          args:
+            - --provider=oidc
+            - --oidc-issuer-url=https://auth.expertfab.de
+            - --upstream=http://erpnext:8080
+            - --http-address=0.0.0.0:4180
+            - --email-domain=*
+            - --scope=openid profile email
+            - --skip-provider-button=true
+            - --cookie-secure=true
+            - --cookie-samesite=lax
+            - --cookie-domain=expertfab.de
+            - --whitelist-domain=expertfab.de
+            - --whitelist-domain=www.expertfab.de
+            - --reverse-proxy=true
+            - --set-xauthrequest=true
+          env:
+            - name: OAUTH2_PROXY_CLIENT_ID
+              valueFrom:
+                secretKeyRef:
+                  name: oauth2-proxy-secrets
+                  key: OAUTH2_PROXY_CLIENT_ID
+            - name: OAUTH2_PROXY_CLIENT_SECRET
+              valueFrom:
+                secretKeyRef:
+                  name: oauth2-proxy-secrets
+                  key: OAUTH2_PROXY_CLIENT_SECRET
+            - name: OAUTH2_PROXY_COOKIE_SECRET
+              valueFrom:
+                secretKeyRef:
+                  name: oauth2-proxy-secrets
+                  key: OAUTH2_PROXY_COOKIE_SECRET
+          ports:
+            - containerPort: 4180
+          resources:
+            requests:
+              cpu: 50m
+              memory: 64Mi
+            limits:
+              cpu: 100m
+              memory: 128Mi
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: oauth2-proxy
+  namespace: erpnext
+spec:
+  selector:
+    app: oauth2-proxy
+  ports:
+    - port: 4180
+      targetPort: 4180

k8s/joplin/ingress.yaml

@@ -0,0 +1,37 @@
+---
+apiVersion: traefik.io/v1alpha1
+kind: Middleware
+metadata:
+  name: redirect-https
+  namespace: joplin
+spec:
+  redirectScheme:
+    scheme: https
+    permanent: true
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: joplin
+  namespace: joplin
+  annotations:
+    cert-manager.io/cluster-issuer: letsencrypt
+    traefik.ingress.kubernetes.io/router.entrypoints: web,websecure
+    traefik.ingress.kubernetes.io/router.middlewares: joplin-redirect-https@kubernetescrd
+spec:
+  ingressClassName: traefik
+  rules:
+    - host: note.expertfab.de
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: joplin
+                port:
+                  number: 22300
+  tls:
+    - hosts:
+        - note.expertfab.de
+      secretName: joplin-tls

k8s/joplin/joplin.yaml

@@ -0,0 +1,92 @@
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: joplin-env
+  namespace: joplin
+type: Opaque
+stringData:
+  APP_BASE_URL: "https://note.expertfab.de"
+  APP_PORT: "22300"
+  DB_CLIENT: "pg"
+  POSTGRES_HOST: "joplin-postgres"
+  POSTGRES_PORT: "5432"
+  POSTGRES_DATABASE: "joplin"
+  POSTGRES_USER: "joplin"
+  POSTGRES_PASSWORD: "TXIlCX4DUdKZuqbYt2lTaxMXvz6cJi"
+  MAILER_ENABLED: "1"
+  MAILER_HOST: "smtprelay.expertfab.de"
+  MAILER_PORT: "587"
+  MAILER_SECURITY: "starttls"
+  MAILER_AUTH_USER: "it-admin@expertfab.de"
+  MAILER_AUTH_PASSWORD: "Relay22$$"
+  MAILER_NOREPLY_NAME: "ExpertFab Joplin"
+  MAILER_NOREPLY_EMAIL: "it-admin@expertfab.de"
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: joplin
+  namespace: joplin
+spec:
+  replicas: 1
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1
+      maxUnavailable: 0
+  selector:
+    matchLabels:
+      app: joplin
+  template:
+    metadata:
+      labels:
+        app: joplin
+    spec:
+      containers:
+        - name: joplin
+          image: joplin/server:latest
+          ports:
+            - containerPort: 22300
+          envFrom:
+            - secretRef:
+                name: joplin-env
+          readinessProbe:
+            httpGet:
+              path: /api/ping
+              port: 22300
+              httpHeaders:
+                - name: Host
+                  value: note.expertfab.de
+            initialDelaySeconds: 30
+            periodSeconds: 10
+            failureThreshold: 6
+          livenessProbe:
+            httpGet:
+              path: /api/ping
+              port: 22300
+              httpHeaders:
+                - name: Host
+                  value: note.expertfab.de
+            initialDelaySeconds: 90
+            periodSeconds: 30
+            failureThreshold: 5
+          resources:
+            requests:
+              cpu: 100m
+              memory: 512Mi
+            limits:
+              cpu: 1000m
+              memory: 1500Mi
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: joplin
+  namespace: joplin
+spec:
+  selector:
+    app: joplin
+  ports:
+    - port: 22300
+      targetPort: 22300

k8s/joplin/namespace.yaml

@@ -0,0 +1,19 @@
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: joplin
+---
+apiVersion: storage.k8s.io/v1
+kind: StorageClass
+metadata:
+  name: longhorn-joplin
+provisioner: driver.longhorn.io
+reclaimPolicy: Retain
+allowVolumeExpansion: true
+volumeBindingMode: Immediate
+parameters:
+  numberOfReplicas: "2"
+  staleReplicaTimeout: "30"
+  fromBackup: ""
+  fsType: "ext4"

k8s/joplin/postgres.yaml

@@ -0,0 +1,96 @@
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: joplin-postgres
+  namespace: joplin
+type: Opaque
+stringData:
+  POSTGRES_DB: joplin
+  POSTGRES_USER: joplin
+  POSTGRES_PASSWORD: "TXIlCX4DUdKZuqbYt2lTaxMXvz6cJi"
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: joplin-postgres-data
+  namespace: joplin
+spec:
+  accessModes: ["ReadWriteOnce"]
+  storageClassName: longhorn-joplin
+  resources:
+    requests:
+      storage: 10Gi
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: joplin-postgres
+  namespace: joplin
+spec:
+  replicas: 1
+  strategy:
+    type: Recreate
+  selector:
+    matchLabels:
+      app: joplin-postgres
+  template:
+    metadata:
+      labels:
+        app: joplin-postgres
+    spec:
+      containers:
+        - name: postgres
+          image: postgres:16-alpine
+          ports:
+            - containerPort: 5432
+          envFrom:
+            - secretRef:
+                name: joplin-postgres
+          env:
+            - name: PGDATA
+              value: /var/lib/postgresql/data/pgdata
+          volumeMounts:
+            - name: data
+              mountPath: /var/lib/postgresql/data
+          startupProbe:
+            exec:
+              command: ["pg_isready", "-U", "joplin", "-d", "joplin"]
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            timeoutSeconds: 5
+            failureThreshold: 30
+          readinessProbe:
+            exec:
+              command: ["pg_isready", "-U", "joplin", "-d", "joplin"]
+            periodSeconds: 10
+            timeoutSeconds: 5
+          livenessProbe:
+            exec:
+              command: ["pg_isready", "-U", "joplin", "-d", "joplin"]
+            periodSeconds: 30
+            timeoutSeconds: 5
+            failureThreshold: 5
+          resources:
+            requests:
+              cpu: 100m
+              memory: 256Mi
+            limits:
+              cpu: 1000m
+              memory: 1Gi
+      volumes:
+        - name: data
+          persistentVolumeClaim:
+            claimName: joplin-postgres-data
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: joplin-postgres
+  namespace: joplin
+spec:
+  selector:
+    app: joplin-postgres
+  ports:
+    - port: 5432
+      targetPort: 5432

k8s/paperless/ingress.yaml

@@ -0,0 +1,27 @@
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: paperless
+  namespace: paperless
+  annotations:
+    cert-manager.io/cluster-issuer: letsencrypt
+    traefik.ingress.kubernetes.io/router.entrypoints: web,websecure
+    traefik.ingress.kubernetes.io/router.middlewares: paperless-redirect-https@kubernetescrd
+spec:
+  ingressClassName: traefik
+  rules:
+    - host: docs.expertfab.de
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: oauth2-proxy
+                port:
+                  number: 4180
+  tls:
+    - hosts:
+        - docs.expertfab.de
+      secretName: paperless-tls

k8s/paperless/oauth2-proxy.yaml

@@ -0,0 +1,83 @@
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: oauth2-proxy-secrets
+  namespace: paperless
+type: Opaque
+stringData:
+  OAUTH2_PROXY_CLIENT_ID: "371736929185563308"
+  OAUTH2_PROXY_CLIENT_SECRET: "2WVS5uGOKOYozY0T6QLi854vihLrNbchqkPhEZxKS74b5iRQeeLH8EMhUiZIHWPH"
+  OAUTH2_PROXY_COOKIE_SECRET: "NcF3zVJcPIpBYpLL4TIqpmBAcESddly-LVHAKw--xl8"
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: oauth2-proxy
+  namespace: paperless
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: oauth2-proxy
+  template:
+    metadata:
+      labels:
+        app: oauth2-proxy
+    spec:
+      containers:
+        - name: oauth2-proxy
+          image: quay.io/oauth2-proxy/oauth2-proxy:v7.7.1
+          args:
+            - --provider=oidc
+            - --oidc-issuer-url=https://auth.expertfab.de
+            - --redirect-url=https://docs.expertfab.de/oauth2/callback
+            - --upstream=http://paperless:8000
+            - --http-address=0.0.0.0:4180
+            - --email-domain=*
+            - --scope=openid profile email
+            - --skip-provider-button=true
+            - --skip-auth-regex=^/api/
+            - --skip-auth-regex=^/api-auth/
+            - --cookie-secure=true
+            - --cookie-samesite=lax
+            - --reverse-proxy=true
+            - --pass-access-token=true
+            - --set-xauthrequest=true
+          env:
+            - name: OAUTH2_PROXY_CLIENT_ID
+              valueFrom:
+                secretKeyRef:
+                  name: oauth2-proxy-secrets
+                  key: OAUTH2_PROXY_CLIENT_ID
+            - name: OAUTH2_PROXY_CLIENT_SECRET
+              valueFrom:
+                secretKeyRef:
+                  name: oauth2-proxy-secrets
+                  key: OAUTH2_PROXY_CLIENT_SECRET
+            - name: OAUTH2_PROXY_COOKIE_SECRET
+              valueFrom:
+                secretKeyRef:
+                  name: oauth2-proxy-secrets
+                  key: OAUTH2_PROXY_COOKIE_SECRET
+          ports:
+            - containerPort: 4180
+          resources:
+            requests:
+              cpu: 50m
+              memory: 64Mi
+            limits:
+              cpu: 100m
+              memory: 128Mi
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: oauth2-proxy
+  namespace: paperless
+spec:
+  selector:
+    app: oauth2-proxy
+  ports:
+    - port: 4180
+      targetPort: 4180