Azure Kubernetes Service
Choosing your shell
You can use either Azure Cloud Shell or install the Azure CLI on your local shell in order to install AKS in your own Azure subscription. Cloud Shell comes preinstalled with
kubectl utilities whereas you need to install them locally if you want to use your local shell. If you use Windows 10, you can use the WIndows Subsystem for Windows as well.
Creating the AKS cluster
If you are using Azure CLI from your local shell, you need to log in to your Azure account by executing the
az login command and following the login procedure.
Here are the steps you need to follow to create a new AKS cluster (additional instructions and clarifications are listed here):
# Declare necessary variables, modify them according to your needs AKS_RESOURCE_GROUP=akstestrg # Name of the resource group your AKS cluster will be created in AKS_NAME=akstest # Name of your AKS cluster AKS_LOCATION=westeurope # Azure region in which you'll deploy your AKS cluster # Create the Resource Group where your AKS resource will be installed az group create --name $AKS_RESOURCE_GROUP --location $AKS_LOCATION # Create the AKS cluster - this might take some time. Type 'az aks create -h' to see all available options # The following command will create a four Node AKS cluster. Node size is Standard A1 v1 and Kubernetes version is 1.21.2. Plus, SSH keys will be generated for you, use --ssh-key-value to provide your values az aks create --resource-group $AKS_RESOURCE_GROUP --name $AKS_NAME --node-count 4 --generate-ssh-keys --node-vm-size Standard_A4_v2 --kubernetes-version 1.21.2 --enable-node-public-ip # Install kubectl sudo az aks install-cli # Get credentials for your new AKS cluster az aks get-credentials --resource-group $AKS_RESOURCE_GROUP --name $AKS_NAME
Allowing UDP traffic
For Agones to work correctly, we need to allow UDP traffic to pass through to our AKS cluster. To achieve this, we must update the NSG (Network Security Group) with the proper rule. A simple way to do that is:
- Log in to the Azure Portal
- Find the resource group where the AKS(Azure Kubernetes Service) resources are kept, which should have a name like
MC_resourceGroupName_AKSName_westeurope. Alternative, you can type
az resource show --namespace Microsoft.ContainerService --resource-type managedClusters -g $AKS_RESOURCE_GROUP -n $AKS_NAME -o json | jq .properties.nodeResourceGroup
- Find the Network Security Group object, which should have a name like
aks-agentpool-********-nsg(ie. aks-agentpool-55978144-nsg for dns-name-prefix agones)
- Select Inbound Security Rules
- Select Add to create a new Rule with UDP as the protocol and 7000-8000 as the Destination Port Ranges. Pick a proper name and leave everything else at their default values
Alternatively, you can use the following command, after modifying the
az network nsg rule create \ --resource-group RESOURCE_GROUP_WITH_AKS_RESOURCES \ --nsg-name NSG_NAME \ --name AgonesUDP \ --access Allow \ --protocol Udp \ --direction Inbound \ --priority 520 \ --source-port-range "*" \ --destination-port-range 7000-8000
Getting Public IPs to Nodes
Kubernetes version prior to 1.18.19, 1.19.11 and 1.20.7
To find a resource’s public IP, search for Virtual Machine Scale Sets -> click on the set name(inside
MC_resourceGroupName_AKSName_westeurope group) -> click
Instances -> click on the instance name -> view
Public IP address.
To get public IP via API look here.
For more information on Public IPs for VM NICs, see this document.
Kubernetes version starting 1.18.19, 1.19.11 and 1.20.7
Virtual Machines public IP is available directly in Kubernetes EXTERNAL-IP.
- Continue to Install Agones.
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Last modified October 27, 2021: Updated aks.md (#2337) (fc6e7872)