feat: Add getting started with AKS guide (#624)

* feat: Add getting started with AKS guide

* Adding network resource groups screenshot

* Update modules/ROOT/pages/kubernetes/aks.adoc

Co-authored-by: Felix Hennig <fhennig@users.noreply.github.com>

* Apply suggestions from code review

Co-authored-by: Felix Hennig <fhennig@users.noreply.github.com>

* Update modules/ROOT/pages/kubernetes/aks.adoc

Co-authored-by: Felix Hennig <fhennig@users.noreply.github.com>

---------

Co-authored-by: Maxi Wittich <maximilian.wittich@stackable.tech>
Co-authored-by: Felix Hennig <fhennig@users.noreply.github.com>

Author: 3 people

Diff for: modules/ROOT/assets/images/managed-k8s/aks/1.png

@@ -1,5 +1,6 @@
 * xref:quickstart.adoc[]
 * xref:kubernetes/index.adoc[]
+** xref:kubernetes/aks.adoc[]
 ** xref:kubernetes/gke.adoc[]
 ** xref:kubernetes/huawei-cloud.adoc[]
 ** xref:kubernetes/ibm-cloud.adoc[]

Diff for: modules/ROOT/assets/images/managed-k8s/aks/2.png

@@ -0,0 +1,50 @@
+= Azure Kubernetes Service (AKS)
+
+Automatic Kubernetes clusters are not supported, as the xref:secret-operator:index.adoc[secret-operator] requires special privileges that are not granted in automatic Kubernetes clusters.
+
+https://azure.microsoft.com/en-us/products/kubernetes-service
+
+. Create Kubernetes cluster
++
+Choose an arbitrary name, the default configurations should be fine.
++
+image::managed-k8s/aks/1.png[]
+
+. Update NodePool settings
++
+It is recommended to check `Enable public IP per node`, so that the Stackable demos work out of the box as they are using NodePorts for maximum portability.
++
+image::managed-k8s/aks/2.png[]
++
+In case you don't want to spend more money by having dedicated control-plane nodes, remove the `CriticalAddonsOnly` taint with the trash-button to the right, so that this nodes can also run workloads and not only the dataplane.
++
+image::managed-k8s/aks/3.png[]
+
+. Enable public access
++
+You also need set `Network policy` to `None`, so that your deployed demos are reachable from the internet.
++
+image::managed-k8s/aks/4.png[]
+
+. Create Kubernetes cluster
++
+Click on `Review + Create` to finish the creation
+
+. Allow incoming traffic
++
+Even though the Kubernetes nodes were configured to be public and have no traffic policy, incoming connections will still be blocked by default.
++
+image::managed-k8s/aks/8.png[]
+You need to go to `Network security group`s and modify the one created for your Kubernetes cluster.
++
+image::managed-k8s/aks/5.png[]
+Add a new inbound security rule, which allows all incoming connections.
++
+image::managed-k8s/aks/6.png[]
+
+. Access Kubernetes
++
+Access your Kubernetes by clicking on the `Connect` button and following the instructions.
++
+image::managed-k8s/aks/7.png[]
+

Diff for: modules/ROOT/assets/images/managed-k8s/aks/3.png

@@ -1,5 +1,5 @@
 * https://aws.amazon.com/eks/[Amazon Elastic Kubernetes Service]
-* https://azure.microsoft.com/en-gb/products/kubernetes-service[Microsoft Azure Kubernetes Service]
+* https://azure.microsoft.com/en-gb/products/kubernetes-service[Azure Kubernetes Service]
 * https://cloud.google.com/kubernetes-engine[Google Kubernetes Engine]
 * https://cloud.ionos.com/managed/kubernetes[IONOS Managed Kubernetes]
 * https://www.rancher.com/products/rancher[SUSE Rancher]