fix oauth2 longhorn proxy

deploy/longhorn/longhorn-dashboard.yaml

@@ -0,0 +1,27 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: longhorn-dashboard
+  namespace: longhorn-system
+  annotations:
+    kubernetes.io/ingress.class: nginx
+    cert-manager.io/cluster-issuer: letsencrypt-prod
+    nginx.ingress.kubernetes.io/auth-signin: https://$host/oauth2/start?rd=$escaped_request_uri
+    nginx.ingress.kubernetes.io/auth-url: https://$host/oauth2/auth
+spec:
+  tls:
+    - hosts:
+        - longhorn.panic.haus
+      secretName: longhorn-tls
+  rules:
+    - host: longhorn.panic.haus
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: longhorn-frontend
+                port:
+                  number: 80
+