ingress-nginx can not load service with out selector corrsectly

[wilelm123]

Is this a BUG REPORT or FEATURE REQUEST? (choose one):

Maybe this is a bug

NGINX Ingress controller version:

quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.20.0

Kubernetes version (use kubectl version):

Client Version: version.Info{Major:"1", Minor:"12", GitVersion:"v1.12.2", GitCommit:"17c77c7898218073f14c8d573582e8d2313dc740", GitTreeState:"clean", BuildDate:"2018-10-24T06:54:59Z", GoVersion:"go1.10.4", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"12", GitVersion:"v1.12.1", GitCommit:"4ed3216f3ec431b140b1d899130a69fc671678f4", GitTreeState:"clean", BuildDate:"2018-10-05T16:36:14Z", GoVersion:"go1.10.4", Compiler:"gc", Platform:"linux/amd64"}

Environment:

• Cloud provider or hardware configuration: aws ec2 baremetal
• OS (e.g. from /etc/os-release): ubuntu 16.04
• Kernel (e.g. uname -a):

Linux kube-master 4.4.0-116-generic #140-Ubuntu SMP Mon Feb 12 21:23:04 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

• Install tools: kubeadm
• Others:

What happened:
I want to forward jenkins service with kubernetes cluster, so I followed the doc
and create a service with out a selector and a endpoint:

apiVersion: v1
kind: Endpoints
metadata:
  name: jenkins
subsets:
  - addresses:
    - ip: 172.31.13.39
    ports:
    - port: 8080

---

apiVersion: v1
kind: Service
metadata:
  name: jenkins-service
  namespace: default
spec:
  ports:
  - name: http
    protocol: TCP
    port: 80
    targetPort: 8080

and the ingress rule like this

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: nginx-ingress
  annotations:
    ingress.kubernetes.io/force-ssl-redirect: "true"
spec:
  rules:
  - host: mongo-express.teletraan.io
    http:
      paths:
      - path: /
        backend:
          serviceName: mongo-express
          servicePort: http
#  - host: kibana.teletraan.io
#    http:
#      paths:
#      - path: /
#        backend:
#          serviceName: kibana-logging
#          servicePort: ui
  - host: jenkins-cn.teletraan.io
    http:
      paths:
      - path: /
        backend:
          serviceName: jenkins-service
          servicePort: 8080

What you expected to happen:
I expect to access http://jenkins-cn.teletraan.io and will response jenkins login page,
but that not work, when I access http://jenkins-cn.teletraan.io (ingress pod deploy as daemonset, and I have bind address to one of the node ip), the server response with 503 http code
plus:
mongo-express.teletraan.io point to a normal service with selector, and it works normal

ingress log:

I1101 04:04:37.230650       7 backend_ssl.go:189] Updating local copy of SSL certificate "default/teletraan-tls-cert" with missing intermediate CA certs
W1101 04:04:37.230761       7 controller.go:749] Error obtaining Endpoints for Service "kube-system/jenkins": no object matching key "kube-system/jenkins" in local store
W1101 04:04:37.230826       7 endpoints.go:79] Error obtaining Endpoints for Service "default/jenkins-service": no object matching key "default/jenkins-service" in local store
W1101 04:04:37.230833       7 controller.go:824] Service "default/jenkins-service" does not have any active Endpoint.
I1101 04:04:37.230919       7 controller.go:177] Configuration changes detected, backend reload required.
I1101 04:04:37.334649       7 controller.go:195] Backend successfully reloaded.

any suggestion please?

[aledbf]

Closing. You don't need and endpoint. Please check this example #629 (comment)