Azure AKS Virtual Nodes Mixed Mode Deployments¶

Link to all the Kubernetes Manifests¶

Step-01: Introduction¶

• We are going to deploy MySQL on regular AKS nodepools (default system nodepool)
• We are going to deploy User Management Web Application on Azure Virtual Nodes
• All this we are going to do using NodeSelectors concept in Kubernetes

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Step-02: Review Kubernetes Manifests¶

MySQL Deployment¶

• File Name: 04-mysql-deployment.yml
• No changes in it, MySQL pod will get scheduled on default AKS nodepool

User Management Web Application Deployment¶

• File Name: 06-UserMgmtWebApp-Deployment.yml
• User Management web app pod will schedule on Azure Virtual Node

  # To schedule pods on Azure Virtual Nodes            
        nodeSelector:
          kubernetes.io/role: agent
          beta.kubernetes.io/os: linux
          type: virtual-kubelet
        tolerations:
        - key: virtual-kubelet.io/provider
          operator: Exists
        - key: azure.com/aci
          effect: NoSchedule    
  

Step-03: Deploy App & Test¶

# Deploy
kubectl apply -f kube-manifests/

# Verify Pods
kubectl get pods

# Verify Pods scheduled on which Nodes
kubectl get pods -o wide

# List Kubernetes Nodes
kubectl get nodes 
kubectl get nodes -o wide

# List Node Pools
az aks nodepool list --cluster-name aksdemo2 --resource-group aks-rg2 --output table

# Access Application
kubectl get svc
http://<Public-IP-from-Get-Service-Output>
Username: admin101
Password: password101

Step-04: Clean-Up Apps¶

# Delete App
kubectl delete -f kube-manifests/

# Delete this new cluster created for Virtual Nodes (if you want to)
az aks delete --name aksdemo2 --resource-group aks-rg2

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