如何从运行在同一集群上的节点内的容器化应用程序访问 Kubernetes 集群？

Question

I am using kubernetes client library for c#. This method should ideally provide me with k8s config of the cluster it is running inside

var k8sConfig = KubernetesClientConfiguration.InClusterConfig();

Inside docker container when this run it gives

k8s.Autorest.HttpOperationException: Operation returned an invalid status code 'Forbidden'

Expected behaviour is to get cluster inside application so as to use its configmaps and secrets. Is there any other method to do this or are there any pre-requisites to use this method?

Please note: I am using token login from web UI for cluster dashboard

Answer 1

如果你真的想使用 configmap 值，你可以将它挂载到你的 pod 中，如下所示。（秘密相同） https://kubernetes.io/docs/tasks/configure-pod-container/configure-pod-configmap/然后这些将作为环境变量提供给您的 pod。

Answer 2

https://github.com/kubernetes-client/csharp/discussions/891

I asked over github too, which was answered by moderators. And this is what we need to do here. Keep "clusterrolbinding" concept in mind.