Path-based routing ingress does not seem to work

[jamelse...@gmail.com]

I am trying to use an Ingress with path-based routing, similar to the following example:

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: path-based-ingress
spec:
rules:
- http:
paths:
- path: /foo
backend:
serviceName: http-svc
servicePort: 80

But when I make a request to the host ip address with a path (i.e. curl -i http://1.2.3.4/foo), I get a "404 - Not Found" response. If I change the path in the ingress config file to just "/" and run "curl -i http://1.2.3.4/", everything works fine; I get a valid response.

Thanks in advance for any help!

[Guangya Liu]

Please make sure adding ` ingress.kubernetes.io/rewrite-target: /` annotation to your service profile, otherwise, nginx proxy will not work.

```

apiVersion: extensions/v1beta1

kind: Ingress

metadata:

  name: mynginx

  annotations:

    ingress.kubernetes.io/rewrite-target: /

spec:

  rules:

  - host: test.jizhihuwai.com

    http:

      paths:

      - path: /v1

        backend:

          serviceName: my-nginx

          servicePort: 80

      - path: /v2

        backend:

          serviceName: my-nginx-1

          servicePort: 80

```

There is also some configuration here: https://github.com/kubernetes/ingress/blob/master/controllers/nginx/configuration.md#rewrite

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[jamelse...@gmail.com]

I appreciate the suggestion! I have tried the "rewrite" annotation, and the result is the same. Also I am not using nginx.

Is my url request format (as I put in my previous post, just attaching the path to the end of the ip address) correct? I am at a loss. Ingress would be really useful if I could actually get this to work.

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[Guangya Liu]

Your template is right, are you using ingress controller?

Here want to show you an example as what I did:

1) start the ingress controller.

2) Create an deployment, service and ingress service.

```

apiVersion: extensions/v1beta1

kind: Ingress

metadata:

  name: mynginx

  annotations:

    ingress.kubernetes.io/rewrite-target: /

spec:

  rules:

  - host: mynginx.com

    http:

      paths:

      - path: /v1

        backend:

          serviceName: my-nginx

          servicePort: 80

---

apiVersion: v1

kind: Service

metadata:

  labels:

    run: my-nginx

  name: my-nginx

  namespace: default

spec:

  ports:

  - name: nginx

    port: 80

    protocol: TCP

    targetPort: 80

  selector:

    run: my-nginx

  type: NodePort

---

apiVersion: extensions/v1beta1

kind: Deployment

metadata:

  labels:

    run: my-nginx

  name: my-nginx

  namespace: default

spec:

  replicas: 1

  selector:

    matchLabels:

      run: my-nginx

  template:

    metadata:

      labels:

        run: my-nginx

    spec:

      containers:

      - image: gyliu/nginxv1:1.0

        imagePullPolicy: IfNotPresent

        name: my-nginx

        ports:

        - containerPort: 80

          protocol: TCP

```

After the objects create finished, then check ingress service.

```

[root@bd002 kq]# kubectl get ing -o yaml

apiVersion: v1

items:

- apiVersion: extensions/v1beta1

  kind: Ingress

  metadata:

    annotations:

      ingress.kubernetes.io/rewrite-target: /

    creationTimestamp: 2017-03-09T02:41:23Z

    generation: 1

    name: mynginx

    namespace: default

    resourceVersion: "625497"

    selfLink: /apis/extensions/v1beta1/namespaces/default/ingresses/mynginx

    uid: e22b0f6f-0471-11e7-8035-f2ecb40a350b

  spec:

    rules:

    - host: mynginx.com

      http:

        paths:

        - backend:

            serviceName: my-nginx

            servicePort: 80

          path: /v1

  status:

    loadBalancer:

      ingress:

      - ip: 9.111.253.118

kind: List

metadata: {}

resourceVersion: ""

selfLink: ""

```

On the host where you want to access the nginx service, add `9.111.253.118 mynginx.com` to your /etc/hosts.

Then `curl`.

This is my output:

```

[root@bd002 kq]# curl mynginx.com/v1

my-nginx-1427292677-mzcdz-v1

```

If you still have question, please check the nginx.conf in your nginx controller to check the proxy policy there, there should be some configuration as this:

```

upstream default-my-nginx-80 {

        least_conn;

        server 10.1.37.206:80 max_fails=0 fail_timeout=0;

    }

location ~* /v1 {

...

rewrite /v1/(.*) /$1 break;

rewrite /v1 / break;

proxy_pass http://default-my-nginx-80;

        }

```

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