Access web apps on host machine from Kubernetes pods

9/30/2019

I have a development environment where some services run in a local Kubernetes cluster, while others run in local nginx & IIS (Windows) outside of the cluster. Most of these services are HTTP APIs, and I sometimes need them to communicate to each other. I have found a way to for non-Kubernetes services to access services inside the cluster (by using IIS as a proxy), but not the other way around.

Basically, from within my container I need to be able to do curl https://app-running-in-iis.local. The address app-running-in-iis.local should resolve to the IP of the host running the Kubernetes cluster.

What would be the simplest way to do this?

-- Andre Borges
dns
kubernetes

1 Answer

10/1/2019

In Kubernetes best practices: mapping external services

You can find two examples how to map external resources into your cluster using services and endpoints:

kind: Service
apiVersion: v1
metadata:
 name: nginx
Spec:
 type: ClusterIP
 ports:
 - port: 31500
   targetPort: 27017

kind: Endpoints
apiVersion: v1
metadata:
 name: nginx
subsets:
 - addresses:
     - ip: 10.240.0.4
   ports:
     - port: 27017

Additional resources:

Hope this help.

-- Hanx
Source: StackOverflow