openfaas-ingress.yaml

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: openfaas-ingress
  namespace: openfaas
  labels:
    name: openfaas-ingress
  annotations:
    kubernetes.io/ingress.class: "nginx"    
    cert-manager.io/cluster-issuer: "letsencrypt-prod"
spec:
  tls:
  - hosts:
    - faas.example.com
    secretName: faas-secret-tls
  rules:
  - host: faas.example.com
    http:
      paths:
      - path: "/"
        backend:
            serviceName: gateway-external
            servicePort: 8080