Azure kubernetes service allows me to assign only one IP address to one cluster. I have created two namespaces within this cluster and I would like to distinguish those two namespaces by url as environments.
Namespaces
Desired access to those namespaces would be something like {namespace}.cloudapp.azure.com.
When defining ingress controller in each namespace the same ip address is assigned. How in general should I achieve this separation but keeping the same cluster?
For your use case you only need a single ingress controller. I.e. https://kubernetes.github.io/ingress-nginx/
To achieve this you need to add DNS entries for the namespaces leading to the single cluster IP. If you only want to access the two DNS names:
adding both entries is probably sufficient if you only want a single application in those namespaces. If you want to deploy multiple applications within the namespaces you should consider adding wildcard DNS entries for:
With this setup you can add ingresses of the following format:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: ingress-example-with-hostname
namespace: dev
spec:
rules:
- host: dev.cloudapp.azure.com
http:
paths:
- pathType: Prefix
path: "/"
backend:
service:
name: service
port:
number: 80
For further informations take a look at this documentation: https://kubernetes.io/docs/concepts/services-networking/ingress/#name-based-virtual-hosting