Added az login

.github/workflows/tf-plan-apply-destroy.yml

@@ -74,7 +74,7 @@ jobs:
       id: tf-plan
       run: |
         export exitcode=0
-        terraform plan -var-file='variables/dev.tfvars' -detailed-exitcode -no-color -out terraform.tfplan || export exitcode=$?
+        terraform plan -var-file='variables/dev.tfvars' -var="clientId=${{ secrets.AZURE_CLIENT_ID }}" -var="tenantId=${{ secrets.AZURE_TENANT_ID }}" -detailed-exitcode -no-color -out terraform.tfplan || export exitcode=$?
 
         echo "exitcode=$exitcode" >> $GITHUB_OUTPUT
 
@@ -164,6 +164,13 @@ jobs:
         path: tf
         name: tfplan
 
+    # - name: Azure CLI Login
+    #   uses: azure/login@v2
+    #   with:
+    #     client-id: ${{ secrets.AZURE_CLIENT_ID }}
+    #     tenant-id:  ${{ secrets.AZURE_TENANT_ID }}
+    #     subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+
     # Terraform Apply
     - name: Terraform Apply
       run: |

tf/main.tf

@@ -181,6 +181,30 @@ resource "null_resource" "build_image_template" {
   }
   provisioner "local-exec" {
     command = <<EOT
+
+      # Variables for Service Principal authentication
+      CLIENT_ID=${var.clientId}
+      TENANT_ID=${var.tenantId}
+
+      # Function for Azure login
+      perform_login() {
+          echo "Performing Azure login..."
+          az login --service-principal -u "$CLIENT_ID" --tenant "$TENANT_ID" > /dev/null 2>&1
+          if [ $? -eq 0 ]; then
+              echo "Azure login successful at $(date)"
+          else
+              echo "Azure login failed at $(date). Check credentials."
+              exit 1
+          fi
+      }
+
+      # Loop to perform login every 30 minutes
+      while true; do
+          perform_login
+          echo "Waiting for 30 minutes before the next login..."
+          sleep 1800 # 1800 seconds = 30 minutes
+      done
+
       # Run the main image builder commands
       az image builder run -n ${var.imageTemplateName} -g ${data.azurerm_resource_group.rg.name} --debug
     EOT

tf/variables.tf

@@ -24,4 +24,12 @@ variable "imageTemplateName" {
 
 variable "devBoxPoolName" {
   type = string
+}
+
+variable "clientId" {
+  type = string
+}
+
+variable "tenantId" {
+  type = string
 }