kube-cascade/external-services/webdav.yaml

apiVersion: v1
kind: Service
metadata:
  name: webdav
  namespace: external-services
spec:
  externalName: 172.16.18.1
  type: ExternalName
  ports:
  - name: http
    protocol: TCP
    port: 5005
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: webdav
  namespace: external-services
  annotations:
    ingress.kubernetes.io/config-backend: |
      http-request set-header X-Real-IP %[src]
spec:
  ingressClassName: haproxy
  rules:
  - host: webdav.strudelline.net
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: webdav
            port:
              number: 5005