Create Azure AKS Cluster using Custom Virtual Network¶

Link to Terraform Configuration Files ¶

Link to all the Kubernetes Manifests ¶

Step-01: Introduction¶

Create a Custom Virtual Network and Subnet
Reference the same in AKS Cluster and Node Pools linux and windows
Create the AKS Cluster with nodepools on custom vnet
Deploy sample Apps and test
Destroy the cluster after tests

Azure Kubernetes Service with Azure DevOps and Terraform¶

Step-02: Create Virtual Network and AKS Default Subnet¶

Create Virtual Network using Terraform
Create a separate subnet for AKS Nodepools

Create a file named 11-virtual-network.tf

# Create Virtual Network
resource "azurerm_virtual_network" "aksvnet" {
  name                = "aks-network"
  location            = azurerm_resource_group.aks_rg.location
  resource_group_name = azurerm_resource_group.aks_rg.name
  address_space       = ["10.0.0.0/8"]
}

# Create a Subnet for AKS
resource "azurerm_subnet" "aks-default" {
  name                 = "aks-default-subnet"
  virtual_network_name = azurerm_virtual_network.aksvnet.name
  resource_group_name  = azurerm_resource_group.aks_rg.name
  address_prefixes     = ["10.240.0.0/16"]
}

Step-03: Update 01-main.tf to change the state storage key name¶

We are going to change the state storage key name considering this as a separate cluster for us because old cluster we destroyed using terraform destroy

# Configure Terraform State Storage
terraform {
  backend "azurerm" {
    resource_group_name   = "terraform-storage-rg"
    storage_account_name  = "terraformstatexlrwdrzs"
    container_name        = "prodtfstate"
    key                   = "terraform-custom-vnet.tfstate"
  }
}

Step-04: Update variables.tf with environment name¶

We are also going to change cluster environment name as dev2

# Azure AKS Environment Name
variable "environment" {
  type = string  
  description = "This variable defines the Environment"  
  default = "dev2"
}

Step-05: Add below for default system, Linux, windows nodepools¶

We will add this in following files
07-aks-cluster.tf in default node pool
08-aks-cluster-linux-user-nodepools.tf

09-aks-cluster-windows-user-nodepools.tf

# AKS Default Subnet ID
vnet_subnet_id        = azurerm_subnet.aks-default.id

Step-06: Deploy Terraform Resources¶

# Change Directory to Terraform Manifests folder
cd 24-05-Create-AKS-Cluster-Custom-VNET/terraform-manifests-aks-custom-vnet

# Initialize Terraform
terraform init

# Validate Terraform manifests
terraform validate

# Review the Terraform Plan
terraform plan   # Verify terraform storage account in Azure to see if new file got created

# Deploy Terraform manifests
terraform apply

Step-07: Verify if Nodepools added successfully¶

# List Node Pools
az aks nodepool list --resource-group terraform-aks-dev2 --cluster-name  terraform-aks-dev2-cluster --output table

# Configure kubectl with Default Admin Credentials
az aks get-credentials --resource-group terraform-aks-dev2 --name  terraform-aks-dev2-cluster --admin

# List Nodes using Labels
kubectl get nodes -o wide
kubectl get nodes -o wide -l nodepoolos=linux
kubectl get nodes -o wide -l nodepoolos=windows
kubectl get nodes -o wide -l environment=dev2

Step-06: Deploy Sample Applications for all 3 node pools¶

Webserver App to System Nodepool
Sample Java App to Linux Nodepool

Dotnet App to Windows Nodepool

# Change Directory 
cd 24-05-Create-AKS-Cluster-Custom-VNET/

# Deploy All Apps
kubectl apply -R -f kube-manifests/

# List Pods
kubectl get pods -o wide

Step-07: Access Applications¶

# List Services to get Public IP for each service we deployed 
kubectl get svc

# Access Webserver App (Running on System Nodepool)
http://<public-ip-of-webserver-app>/app1/index.html

# Access Java-App (Running on linux101 nodepool)
http://<public-ip-of-java-app>
Username: admin101
Password: password101

# Access Windows App (Running on win101 nodepool)
http://<public-ip-of-windows-app>

Step-08: Destroy our Terraform Cluster¶

# Change Directory 
cd 24-05-Create-AKS-Cluster-Custom-VNET/terraform-manifests-aks-custom-vnet

# Destroy all our Terraform Resources
terraform destroy

Create Azure AKS Cluster using Custom Virtual Network¶

Link to Terraform Configuration Files ¶

Link to all the Kubernetes Manifests ¶

Step-01: Introduction¶

Azure Kubernetes Service with Azure DevOps and Terraform¶

Step-02: Create Virtual Network and AKS Default Subnet¶

Step-03: Update 01-main.tf to change the state storage key name¶

Step-04: Update variables.tf with environment name¶

Step-05: Add below for default system, Linux, windows nodepools¶

Step-06: Deploy Terraform Resources¶

Step-07: Verify if Nodepools added successfully¶

Step-06: Deploy Sample Applications for all 3 node pools¶

Step-07: Access Applications¶

Step-08: Destroy our Terraform Cluster¶

Best Selling Azure Kubernetes Service Course on Udemy ¶

Best Selling AWS EKS Kubernetes Course on Udemy ¶

HashiCorp Certified Terraform Associate - 50 Practical Demos ¶

Create Azure AKS Cluster using Custom Virtual Network¶

Link to Terraform Configuration Files¶

Link to all the Kubernetes Manifests¶

Step-01: Introduction¶

Azure Kubernetes Service with Azure DevOps and Terraform¶

Step-02: Create Virtual Network and AKS Default Subnet¶

Step-03: Update 01-main.tf to change the state storage key name¶

Step-04: Update variables.tf with environment name¶

Step-05: Add below for default system, Linux, windows nodepools¶

Step-06: Deploy Terraform Resources¶

Step-07: Verify if Nodepools added successfully¶

Step-06: Deploy Sample Applications for all 3 node pools¶

Step-07: Access Applications¶

Step-08: Destroy our Terraform Cluster¶

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 Terraform Configuration Files ¶

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 ¶