feat: a script to add AKS machines pool to a cluster (#1158)

Author: comtalyst

hack/deploy/add-aks-machines-pool.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+if [ "$#" -ne 4 ]; then
+    echo "Usage: $0 <subscription-id> <resource-group> <cluster-name> <nodepool-name>"
+    echo "This script adds a nodepool with 'machines' mode to an existing AKS cluster using Azure REST API."
+    echo "Example:"
+    echo "  $0 00000000-0000-0000-0000-000000000000 some-rg some-cluster somepool"
+    exit 1
+fi
+
+AZURE_SUBSCRIPTION_ID=$1
+RESOURCE_GROUP=$2
+CLUSTER_NAME=$3
+NODEPOOL_NAME=$4
+
+echo "Adding nodepool '$NODEPOOL_NAME' with machines mode to cluster '$CLUSTER_NAME' in resource group '$RESOURCE_GROUP'..."
+
+# REST API endpoint
+# TODO: switch to Azure CLI when it supports AgentPool creation with machines mode
+API_VERSION="2025-07-01"
+URL="https://management.azure.com/subscriptions/${AZURE_SUBSCRIPTION_ID}/resourceGroups/${RESOURCE_GROUP}/providers/Microsoft.ContainerService/managedClusters/${CLUSTER_NAME}/agentPools/${NODEPOOL_NAME}?api-version=${API_VERSION}"
+
+# Request body with machines mode
+REQUEST_BODY=$(cat <<EOF
+{
+  "properties": {
+    "mode": "Machines",
+  }
+}
+EOF
+)
+
+echo "Making REST API call..."
+echo "URL: $URL"
+echo "Request Body:"
+echo "$REQUEST_BODY"
+
+if az rest --method PUT --url "$URL" --body "$REQUEST_BODY"; then
+    echo "✅ Successfully added nodepool '$NODEPOOL_NAME' with machines mode"
+else
+    echo "❌ Failed to add nodepool"
+    exit 1
+fi