Ingress returns 503 unavailable

[Dev Random]

Hi,

I created a simple NGINX Dockerfile as follows :

FROM nginx
RUN rm /etc/nginx/conf.d/default.conf
COPY content /usr/share/nginx/html
COPY conf /etc/nginx

The config for NGINX is nothing special:

server {
    listen       80;
    server_name  localhost;
    root   /usr/share/nginx/html;
    location / {
        index  index.html index.htm;
    }
}

I then created simple deployment.yaml

kind: Deployment
metadata:
  name: test-deployment
  namespace: default
  labels:
    k8s-app: testapp
spec:
  replicas: 1
  template:
    metadata:
      labels:
        k8s-app: simple
    spec:
      containers:
        - name: nginx
          image: quay.io/<MYACCOUNT_GOES_HERE>/<MYNGINX_GOES_HERE>:latest
          ports:
            - name: http
              containerPort: 80

A simple service.yaml:

kind: Service
apiVersion: v1
metadata:
  name: test-service
  namespace: default
spec:
  selector:
    k8s-app: testapp
  ports:
  - protocol: TCP
    port: 80
  type: NodePort

And a simple ingress.yaml:

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: test-ingress
  namespace: default
  annotations:
    kubernetes.io/ingress.class: "tectonic"
    ingress.kubernetes.io/rewrite-target: /
    ingress.kubernetes.io/ssl-redirect: "true"
    ingress.kubernetes.io/use-port-in-redirects: "true"
spec:
  rules:
    - host: <MY_HOSTNAME_GOES_HERE>
      http:
        paths:
          - path: /test-deployment
            backend:
              serviceName: test-service
              servicePort: 8090

I have tried various versions of ingress.yaml.  Changing servicePort to 8090 doesn't work.  Simplyfing the ingress as follows doesn't work.  I have tried both nodePort and clusterPort as the port number, that does't work.:

kind: Ingress
apiVersion: extensions/v1beta1
metadata:
  name: test-ingress
  namespace: default
  selfLink: /apis/extensions/v1beta1/namespaces/default/ingresses/test-ingress
  uid: <MY_UUID>
  resourceVersion: '52879'
  generation: 10
  creationTimestamp: '2018-02-19T13:18:24Z'
  annotations:
    kubernetes.io/ingress.class: tectonic
spec:
  rules:
    - host: <MY_HOST_NAME>
      http:
        paths:
          - backend:
              serviceName: test-service
              servicePort: 80
status:
  loadBalancer:
    ingress:
      - {}

$kubectl get deployments
NAME              DESIRED   CURRENT   UP-TO-DATE   AVAILABLE   AGE
test-deployment   1         1         1            1           2h

$kubectl get services -o wide
NAME           TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)        AGE       SELECTOR
kubernetes     ClusterIP   10.3.0.1       <none>        443/TCP        6h        <none>
test-service   NodePort    10.3.151.217   <none>        80:31803/TCP   2h        <none>

$kubectl get ingress
NAME           HOSTS                   ADDRESS   PORTS     AGE
test-ingress   <mY_HOSTNAME>            80        2h

[Ben Sooraj M - PERSONAL]

I am stuck at a similar issue, where you able to identify the root cause?