<p>I am trying to create add the nginx ingress controller to my kubernetes cluster. My current cluster has 3 nodes and they all have open firewall rules in between them. (Note: This is a bare metal cluster for educational purposes) </p>

<p>I have created a deployment with the following config</p>

<pre><code>apiVersion: apps/v1
kind: Deployment
metadata:
  name: nodejs-test
  labels:
    app: nodejs
spec:
  replicas: 5
  selector:
    matchLabels:
      app: nodejs
  template:
    metadata:
      labels:
        app: nodejs
    spec:
      containers:
      - name: nodejs-container
        image: gcr.io/infrastructure/test-nodejs-server
        ports:
        - containerPort: 3000
---
apiVersion: v1
kind: Service
metadata:
  name: test-deployment-service
spec:
  selector:
    app: nodejs
  ports:
  - protocol: TCP
    port: 80
    targetPort: 3000
</code></pre>

<p>After running kubectl create -f file.yaml</p>

<p>I see all pods and services running. Within the cluster I can curl that service ip and get a response from the pods.</p>

<p>Now I go to create a ingress.</p>

<p>I first followed the install steps found at <a href="https://github.com/kubernetes/ingress-nginx/tree/master/deploy" rel="noreferrer">https://github.com/kubernetes/ingress-nginx/tree/master/deploy</a></p>

<p>I can see my ingress controller running. </p>

<pre><code>    NAMESPACE       NAME                                         READY     STATUS    RESTARTS   AGE
default         my-test-6445d9bb7b-blm7t                     1/1       Running   0          3h
default         nodejs-test-5657f7bb74-7hwqk                 1/1       Running   0          23h
default         nodejs-test-5657f7bb74-bh44x                 1/1       Running   0          23h
default         nodejs-test-5657f7bb74-dw4g4                 1/1       Running   0          23h
default         nodejs-test-5657f7bb74-k7bf4                 1/1       Running   0          23h
default         nodejs-test-5657f7bb74-xdthl                 1/1       Running   0          23h
ingress-nginx   default-http-backend-55c6c69b88-4d5bf        1/1       Running   0          26m
ingress-nginx   nginx-ingress-controller-5c6698dfbf-gs9zd    1/1       Running   0          25m
kube-system     etcd-yoda.me.com                      1/1       Running   1          1d
kube-system     kube-apiserver-yoda.me.com            1/1       Running   1          1d
kube-system     kube-controller-manager-yoda.me.com   1/1       Running   1          1d
kube-system     kube-dns-6f4fd4bdf-62bxg                     3/3       Running   3          1d
kube-system     kube-flannel-ds-jbmwg                        1/1       Running   1          1d
kube-system     kube-flannel-ds-r8nfb                        1/1       Running   2          1d
kube-system     kube-flannel-ds-rczbx                        1/1       Running   0          1d
kube-system     kube-proxy-brm2g                             1/1       Running   0          1d
kube-system     kube-proxy-qjgcv                             1/1       Running   1          1d
kube-system     kube-proxy-sz6rw                             1/1       Running   1          1d
kube-system     kube-scheduler-yoda.me.com            1/1       Running   1          1d
kube-system     kubernetes-dashboard-5bd6f767c7-stscl        1/1       Running   1          23h
kube-system     tiller-deploy-59d854595c-tngg6               1/1       Running   0          23h
</code></pre>

<p>I then create my ingress with the following file</p>

<pre><code>apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: test-ingress
  annotations:
    ingress.kubernetes.io/rewrite-target: /
    kubernetes.io/ingress.class: "nginx"
spec:
  rules:
  - http:
      paths:
      - path: /whoop
        backend:
          serviceName: test-deployment-service
          servicePort: 80
</code></pre>

<p>Then I run kubectl get services --all-namespaces to find my ingress controller port.</p>

<pre><code>NAMESPACE       NAME                      TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)                      AGE
default         kubernetes                ClusterIP   10.96.0.1        &lt;none&gt;        443/TCP                      1d
default         my-test                   ClusterIP   10.110.102.5     &lt;none&gt;        80/TCP                       4h
default         test-deployment-service   ClusterIP   10.104.239.37    &lt;none&gt;        80/TCP                       23h
ingress-nginx   default-http-backend      ClusterIP   10.105.218.87    &lt;none&gt;        80/TCP                       29m
ingress-nginx   ingress-nginx             NodePort    10.110.39.104    &lt;none&gt;        80:30652/TCP,443:31624/TCP   27m
kube-system     kube-dns                  ClusterIP   10.96.0.10       &lt;none&gt;        53/UDP,53/TCP                1d
kube-system     kubernetes-dashboard      ClusterIP   10.100.219.110   &lt;none&gt;        443/TCP                      23h
kube-system     tiller-deploy             ClusterIP   10.101.179.202   &lt;none&gt;        44134/TCP                    23h
</code></pre>

<p>Now I go to curl my server:</p>

<pre><code>curl -v myserver:30652/whoop/
</code></pre>

<p>The resulting response is: </p>

<pre><code>*   Trying myip...
* TCP_NODELAY set
* Connected to myserver (myip) port 30652 (#0)
&gt; GET /whoop/ HTTP/1.1
&gt; Host: myserver:30652
&gt; User-Agent: curl/7.54.0
&gt; Accept: */*
&gt; 
&lt; HTTP/1.1 308 Permanent Redirect
&lt; Server: nginx/1.13.9
&lt; Date: Fri, 02 Mar 2018 14:38:21 GMT
&lt; Content-Type: text/html
&lt; Content-Length: 187
&lt; Connection: keep-alive
&lt; Location: https://myserver:30652/whoop/
&lt; Strict-Transport-Security: max-age=15724800; includeSubDomains;
&lt; 
&lt;html&gt;
&lt;head&gt;&lt;title&gt;308 Permanent Redirect&lt;/title&gt;&lt;/head&gt;
&lt;body bgcolor="white"&gt;
&lt;center&gt;&lt;h1&gt;308 Permanent Redirect&lt;/h1&gt;&lt;/center&gt;
&lt;hr&gt;&lt;center&gt;nginx/1.13.9&lt;/center&gt;
&lt;/body&gt;
&lt;/html&gt;
* Connection #0 to host myserver left intact
</code></pre>

<p>I would expect to be getting the response from my pods. However I always get the 308. </p>

<p>If I curl a random path</p>

<p>curl myserver:30652/random</p>

<p>The response I get is </p>

<pre><code>default backend - 404
</code></pre>

<p>How can I hook up my ingress and ingress controller for the routing to work correctly?</p>

<p>I was having the same problem, but I did not want to add the <code>host</code> value. 
 To prevent the redirect HTTP to HTTPS by the default server like <a href="https://stackoverflow.com/a/49455779/4410404">David</a> mentioned, instead I added this annotation to the ingress and it fixed it for me: <code>nginx.ingress.kubernetes.io/ssl-redirect: "false"</code>.</p>

<p>My working ingress looks like this now:</p>

<pre><code>apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: test-ingress
  annotations:
    kubernetes.io/ingress.class: "internal-nginx"
    nginx.ingress.kubernetes.io/rewrite-target: /
    nginx.ingress.kubernetes.io/ssl-redirect: "false"
spec:
  rules:
  - http:
      paths:
      - path: /*
        backend:
          serviceName: app1
          servicePort: 80
      - path: /app2/*
        backend:
          serviceName: app2
          servicePort: 80
</code></pre>
