🚨Ingress 생성 오류 트러블슈팅

externalIP 접속안되서 Ingress 생성 중 오류 발생

Error from server (BadRequest): error when creating "ingress-dashboard.yaml": Ingress in version "v1" cannot be handled as a Ingress: json: cannot unmarshal number into Go struct field IngressServiceBackend.spec.rules.http.paths.backend.service.port of type v1.ServiceBackendPort

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: kubernetes-dashboard
spec:
  rules:
  - http:
      paths:
      - pathType: Prefix
        path: "/"
        backend:
          service:
            name: kubernetes-dashboard
            port: # port: 80 을 port.number: 80으로 변환하니 해결
              number: 80