Fixes #456 - Cleaned Kubernetes content and added link to helm chart

install/kubernetes.rst

@@ -1,28 +1,15 @@
 Install on Kubernetes via Helm
 ******************************
 
-.. warning:: We currently do not support Kubernetes installations in productive use.
+.. warning:: We currently do not support Kubernetes installations in productive
+   use.
 
-Kubernetes_ (k8s) is an open-source system for automating deployment, scaling, and management of containerized applications.
+Kubernetes_ (k8s) is an open-source system for automating deployment, scaling,
+and management of containerized applications.
 
 .. _Kubernetes: https://kubernetes.io
 
-Helm_ is the package manager for Kubernetes.
-
-.. _Helm: https://helm.sh
-
-This repo is meant to be the starting point for somebody who likes to use dockerized multi-container Zammad on Kubernetes.
-The Zammad Docker image uses the stable branch of Zammad's Git repo.
-
-The used Docker images are hosted on `Dockerhub <https://hub.docker.com/r/zammad/zammad-docker-compose/>`_.
-
-You need the Helm binary installed / initialized and at least 4 GB of free RAM in the Kubernetes cluster run the containers.
-
-
-.. code-block:: sh
-
-   # Add Helm repo
-   $ helm repo add zammad https://zammad.github.io/zammad-helm
-
-   # Install / Upgrade Zammad
-   $ helm upgrade --install zammad zammad/zammad --namespace=zammad
+For maintainability reasons, this documentation does not cover the installation
+instructions because these are included in our helm chart anyway. You can find
+the helm chart in the zammad-helm repository
+`here <https://github.com/zammad/zammad-helm/blob/main/zammad/README.md>`_.