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create_aks_cluster.md

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Create a kubernetes cluster

https://docs.microsoft.com/en-us/azure/aks/kubernetes-walkthrough#create-aks-cluster

Hint: The "set KEY value" values commands work in Powershell. In Bash use KEY=value.

  1. Use bash to create the resource group by using azure cloud shell (https://shell.azure.com/ )
LOCATION=westeurope
KUBE_GROUP=myKubeRG
KUBE_NAME=myFirstKube
az group create -n $KUBE_GROUP -l $LOCATION
  1. Create the aks cluster using azure shell
az aks create --name $KUBE_NAME --resource-group $KUBE_GROUP --node-count 3 --generate-ssh-keys --enable-addons monitoring --kubernetes-version 1.15.7 --enable-rbac

Additional parameters can be found here https://docs.microsoft.com/en-us/cli/azure/aks?view=azure-cli-latest#az_aks_create if you have to use the given service principal (because you are not allowed to create services principals in azure ad) add the following parameters

--client-secret HEREBESECRET --service-principal HEREBEAPPID

Customize the vm size with Look up vm sizes

az vm list-sizes -l westeurope

and set as parameter

--node-vm-size Standard_B2s

Get access to cluster

  1. Export the kubectrl credentials files.
az aks get-credentials --resource-group=$KUBE_GROUP --name=$KUBE_NAME
  1. Now you can look at the cluster config file under
cat ~/.kube/config

You can download the latest version of kubectl (only for local machine - azure shell already has kubectl)

az aks install-cli

Alternatively for your plattform https://kubernetes.io/docs/tasks/tools/install-kubectl/

Set up autocompletion

kubectl completion -h
  1. Check that everything is running ok
kubectl cluster-info
  1. Launch the dashboard in the azure shell (look for the url in the output and click on it - you will be directed to the dashboard)
az aks browse --resource-group $KUBE_GROUP --name $KUBE_NAME

or locally

kubectl proxy
http://localhost:8001/api/v1/namespaces/kube-system/services/kubernetes-dashboard/proxy/#!/pod?namespace=default
  1. If you see an access denied - you have to give the dashboard pod permissions first
kubectl create clusterrolebinding kubernetes-dashboard \
--clusterrole=cluster-admin \
--serviceaccount=kube-system:kubernetes-dashboard