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I'm trying to get an ingress controller working in Minikube and am following the steps in the K8s documentation here, but am seeing a different result in that the IP address for the ingress controller is different than that for Minikube (the example seems to indicate they should be the same):
$ kubectl get ingress
NAME HOSTS ADDRESS PORTS AGE
example-ingress hello-world.info 10.0.2.15 80 12m
$ minikube ip
192.168.99.101
When I try to connect to the Minikube IP address (using the address directly vs. adding it to my local hosts file), I'm getting a "Not found" response from NGINX:
$ curl http://`minikube ip`/
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>openresty/1.15.8.1</center>
</body>
</html>
When I try to connect to the IP address associated with the ingress controller, it just hangs.
Should I expect the addresses to be the same as the K8s doc indicates?
Some additional information:
$ kubectl get nodes -o wide
NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
minikube Ready master 2d23h v1.16.0 10.0.2.15 <none> Buildroot 2018.05.3 4.15.0 docker://18.9.9
$ kubectl get ingresses example-ingress -o yaml
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
annotations:
kubectl.kubernetes.io/last-applied-configuration: |
{"apiVersion":"networking.k8s.io/v1beta1","kind":"Ingress","metadata":{"annotations":{"nginx.ingress.kubernetes.io/rewrite-target":"/$1"},"name":"example-ingress","namespace":"default"},"spec":{"rules":[{"host":"hello-world.info","http":{"paths":[{"backend":{"serviceName":"web","servicePort":8080},"path":"/"}]}}]}}
nginx.ingress.kubernetes.io/rewrite-target: /$1
creationTimestamp: "2019-10-28T15:36:57Z"
generation: 1
name: example-ingress
namespace: default
resourceVersion: "25609"
selfLink: /apis/extensions/v1beta1/namespaces/default/ingresses/example-ingress
uid: 5e96c378-fbb1-4e8f-9738-3693cbce7d9b
spec:
rules:
- host: hello-world.info
http:
paths:
- backend:
serviceName: web
servicePort: 8080
path: /
status:
loadBalancer:
ingress:
- ip: 10.0.2.15
735
The ingress-dns addon acts as a DNS service that runs inside your Kubernetes cluster. All you have to do is install the service and add the minikube ip as a DNS server on your host machine. Each time the DNS service is queried, an API call is made to the Kubernetes master service for a list of all the ingresses.
I've reproduced your scenario in a Linux environment (on GCP) and I also have different IPs:
user@bf:~$ minikube ip
192.168.39.144
user@bf:~$ kubectl get ingresses
NAME HOSTS ADDRESS PORTS AGE
example-ingress * 192.168.122.173 80 30m
Your problem is not related to the fact you have different IPs. The guide instructs us to create an ingress with the following rule:
spec:
rules:
- host: hello-world.info
This rule is telling the ingress service that a DNS record with hello-world.info name is expected.
If you follow the guide a bit further, it instructs you to create an entry on your hosts file pointing to your ingress IP or Minikube IP.
Note: If you are running Minikube locally, use
minikube ipto get the external IP. The IP address displayed within the ingress list will be the internal IP.
Source: Set up Ingress on Minikube with the NGINX Ingress Controller
(if you want to curl the IP instead of DNS name, you need to remove the host rule from your ingress)
It should look like this:
apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
name: example-ingress
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /
spec:
rules:
- http:
paths:
- path: /
backend:
serviceName: web
servicePort: 8080
Apply your changes:
user@bf:~$ kubectl apply -f example-ingress.yaml
And curl the IP using -Lk options to surpass problems related to secure connections.
user@bf:~$ curl -Lk 192.168.39.144
Hello, world!
Version: 1.0.0
Hostname: web-9bbd7b488-l5gc9
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