AKS Storage - Storage Classes, Persistent Volume Claims¶

Link to all the Kubernetes Manifests ¶

Step-01: Introduction¶

We are going to create a MySQL Database with persistence storage using Azure Disks

Kubernetes Object	YAML File
Storage Class	01-storage-class.yml
Persistent Volume Claim	02-persistent-volume-claim.yml
Config Map	03-UserManagement-ConfigMap.yml
Deployment, Environment Variables, Volumes, VolumeMounts	04-mysql-deployment.yml
ClusterIP Service	05-mysql-clusterip-service.yml

Azure Kubernetes Service with Azure DevOps and Terraform¶

Step-02: Create following Kubernetes manifests¶

Create Storage Class manifest¶

https://kubernetes.io/docs/concepts/storage/storage-classes/#volume-binding-mode
https://kubernetes.io/docs/concepts/storage/storage-classes/#azure-disk

Create Persistent Volume Claims manifest¶

# Create Storage Class & PVC
kubectl apply -f kube-manifests/01-storage-class.yml
kubectl apply -f kube-manifests/02-persistent-volume-claim.yml

# List Storage Classes
kubectl get sc

# List PVC
kubectl get pvc 

# List PV
kubectl get pv

Create ConfigMap manifest¶

We are going to create a usermgmt database schema during the mysql pod creation time which we will leverage when we deploy User Management Microservice.

Create MySQL Deployment manifest¶

Environment Variables
Volumes
Volume Mounts

Create MySQL ClusterIP Service manifest¶

At any point of time we are going to have only one mysql pod in this design so ClusterIP: None will use the Pod IP Address instead of creating or allocating a separate IP for MySQL Cluster IP service.

Step-03: Create MySQL Database with all above manifests¶

# Create MySQL Database
kubectl apply -f kube-manifests/

# List Storage Classes
kubectl get sc

# List PVC
kubectl get pvc 

# List PV
kubectl get pv

# List pods
kubectl get pods 

# List pods based on  label name
kubectl get pods -l app=mysql

Step-04: Connect to MySQL Database¶

# Connect to MYSQL Database
kubectl run -it --rm --image=mysql:5.6 --restart=Never mysql-client -- mysql -h mysql -pdbpassword11

# Verify usermgmt schema got created which we provided in ConfigMap
mysql> show schemas;

Step-05: Clean-Up¶

# Delete All
kubectl delete -f kube-manifests/

Step-06: Delete PV exclusively - It exists due to retain policy¶

# List PV
kubect get pv

# Delete PV exclusively
kubectl get pv
kubectl delete pv <PV-NAME>

# Delete Azure Disks 
Go to All Services -> Disks -> Select and Delete the Disk

Step-07: References & Storage Best Practices¶

We need to discuss references exclusively here.
https://docs.microsoft.com/en-us/azure/aks/concepts-storage
https://docs.microsoft.com/en-us/azure/aks/operator-best-practices-storage
https://docs.microsoft.com/en-us/azure/aks/azure-disks-dynamic-pv
https://kubernetes.io/docs/concepts/storage/persistent-volumes/
https://kubernetes.io/docs/concepts/storage/storage-classes/#azure-disk
https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#storageclass-v1-storage-k8s-io

AKS Storage - Storage Classes, Persistent Volume Claims¶

Link to all the Kubernetes Manifests ¶

Step-01: Introduction¶

Azure Kubernetes Service with Azure DevOps and Terraform¶

Step-02: Create following Kubernetes manifests¶

Create Storage Class manifest¶

Create Persistent Volume Claims manifest¶

Create ConfigMap manifest¶

Create MySQL Deployment manifest¶

Create MySQL ClusterIP Service manifest¶

Step-03: Create MySQL Database with all above manifests¶

Step-04: Connect to MySQL Database¶

Step-05: Clean-Up¶

Step-06: Delete PV exclusively - It exists due to retain policy¶

Step-07: References & Storage Best Practices¶

Best Selling Azure Kubernetes Service Course on Udemy ¶

Best Selling AWS EKS Kubernetes Course on Udemy ¶

HashiCorp Certified Terraform Associate - 50 Practical Demos ¶

AKS Storage - Storage Classes, Persistent Volume Claims¶

Link to all the Kubernetes Manifests¶

Step-01: Introduction¶

Azure Kubernetes Service with Azure DevOps and Terraform¶

Step-02: Create following Kubernetes manifests¶

Create Storage Class manifest¶

Create Persistent Volume Claims manifest¶

Create ConfigMap manifest¶

Create MySQL Deployment manifest¶

Create MySQL ClusterIP Service manifest¶

Step-03: Create MySQL Database with all above manifests¶

Step-04: Connect to MySQL Database¶

Step-05: Clean-Up¶

Step-06: Delete PV exclusively - It exists due to retain policy¶

Step-07: References & Storage Best Practices¶

Best Selling Azure Kubernetes Service Course on Udemy¶

Best Selling AWS EKS Kubernetes Course on Udemy¶

HashiCorp Certified Terraform Associate - 50 Practical Demos¶

Link to all the Kubernetes Manifests ¶

Best Selling Azure Kubernetes Service Course on Udemy ¶

Best Selling AWS EKS Kubernetes Course on Udemy ¶

HashiCorp Certified Terraform Associate - 50 Practical Demos ¶