fix

.azure-pipelines/templates/deploy.yaml

@@ -34,6 +34,20 @@ parameters:
   default: ''
 
 steps:
+# 0. Ensure Azure CLI exists before running AzureCLI@2 tasks.
+- task: Bash@3
+  name: EnsureAzureCLI
+  displayName: Ensure Azure CLI Installed
+  inputs:
+    targetType: inline
+    script: |
+      set -e
+      if command -v az >/dev/null 2>&1; then
+        az version >/dev/null
+        exit 0
+      fi
+      curl -sL https://aka.ms/InstallAzureCLIDeb | sudo bash
+
 # 1. Check VMSS availability (fast, fail-fast)
 - task: AzureCLI@2
   name: CheckVMSS
@@ -115,7 +129,6 @@ steps:
     script: |
       sudo apt-get update -y
       sudo apt-get install pssh -y
-      curl -sL https://aka.ms/InstallAzureCLIDeb | sudo bash
 
 - task: AzureCLI@2
   name: StartVMSS

.azure-pipelines/templates/stop.yaml

@@ -8,6 +8,19 @@ parameters:
   default: mscclpp
 
 steps:
+- task: Bash@3
+  name: EnsureAzureCLI
+  displayName: Ensure Azure CLI Installed
+  inputs:
+    targetType: inline
+    script: |
+      set -e
+      if command -v az >/dev/null 2>&1; then
+        az version >/dev/null
+        exit 0
+      fi
+      curl -sL https://aka.ms/InstallAzureCLIDeb | sudo bash
+
 - task: AzureCLI@2
   name: StopVMSS
   displayName: Deallocate VMSS