use NGINX cli to do configuration updates

This change enables the use of "az nginx deployment" cli
to do configuration updates. This helps limit the permissions
needed by the service principal to do config updates.

Author: kuthiala

github-action/src/deploy-config.sh

@@ -132,7 +132,7 @@ echo "Successfully created the tarball from the NGINX configuration directory."
 echo "Listing the NGINX configuration file paths in the tarball."
 tar -tf "$config_tarball"
 
-encoded_config_tarball=$(base64 "$config_tarball")
+encoded_config_tarball=$(base64 "$config_tarball" -w 0)
 
 if [[ "$debug" == true ]]; then
     echo "The base64 encoded NGINX configuration tarball"
@@ -142,36 +142,28 @@ echo ""
 
 # Synchronize the NGINX configuration tarball to the NGINXaaS for Azure deployment.
 
-uuid="$(cat /proc/sys/kernel/random/uuid)"
-template_file="template-$uuid.json"
-template_deployment_name="${nginx_deployment_name:0:20}-$uuid"
-
-wget -O "$template_file" https://raw.githubusercontent.com/nginxinc/nginx-for-azure-deploy-action/487d1394d6115d4f42ece6200cbd20859595557d/src/nginx-for-azure-configuration-template.json
-echo "Downloaded the ARM template for synchronizing NGINX configuration."
-cat "$template_file"
-echo ""
-
 echo "Synchronizing NGINX configuration"
 echo "Subscription ID: $subscription_id"
 echo "Resource group name: $resource_group_name"
 echo "NGINXaaS for Azure deployment name: $nginx_deployment_name"
-echo "ARM template deployment name: $template_deployment_name"
 echo ""
 
 az account set -s "$subscription_id" --verbose
 
+echo "Installing the az nginx extension if not already installed."
+az extension add --name nginx --allow-preview true
+
 az_cmd=(
     "az"
+    "nginx"
     "deployment"
-    "group"
-    "create"
-    "--name" "$template_deployment_name"
+    "configuration"
+    "update"
+    "--name" "default"
+    "--deployment-name" "$nginx_deployment_name"
     "--resource-group" "$resource_group_name"
-    "--template-file" "$template_file"
-    "--parameters"
-    "nginxDeploymentName=$nginx_deployment_name"
-    "rootFile=$transformed_root_config_file_path"
-    "tarball=$encoded_config_tarball"
+    "--root-file" "$transformed_root_config_file_path"
+    "--package" "data=$encoded_config_tarball"
     "--verbose"
 )