Using Kubectl Proxy
This topic describes how to setup a
kubectl proxy for an a9s Kubernetes instance.
Creating the Proxy
After configuring your kubeconfig file to access your a9s Kubernetes instance, you can create a proxy as follow:
$ kubectl proxy --port=8080 --accept-hosts=".*"
Traffic to the Kubernetes API goes through the a9s Router component, where the
request is forwarded to the correct host according to the URL target. Because
the a9s Router uses the target host to forward the request using the appropriate
backend, it is necessary to use the
--accept-hosts parameter. This way, the
Host header is accepted by the proxy as the target when access using
or other tools.
Accessing Via Proxy
curl command, you must specify the
$ curl --header "Host: <external-route-hostname>" localhost:8080/api
$ curl --header "Host: api-09e0cf69-8aea-406d-9920-e83f11be2716.k8s-dsf2.a9s-ds-concourse.a9s-ops.de" \ localhost:8080/api