Enable automatically starting the ARM64 VM on pipeline run

Author: zooba

windows-release/azure-pipelines.yml

@@ -163,6 +163,8 @@ stages:
     pool:
       vmImage: ${{ parameters.vmImage }}
     jobs:
+    - template: start-arm64vm.yml
+      - ${{ if eq(parameters.DoPGOARM64, 'true') }}:
     - template: stage-build.yml
       parameters:
         DoFreethreaded: ${{ parameters.DoFreethreaded }}

windows-release/stage-build.yml

@@ -10,6 +10,7 @@ parameters:
 jobs:
 - job: Build_Docs
   displayName: Docs build
+  dependsOn: []
 
   workspace:
     clean: all
@@ -37,6 +38,7 @@ jobs:
 
 - job: Build_Python
   displayName: Python build
+  dependsOn: []
 
   workspace:
     clean: all
@@ -170,6 +172,7 @@ jobs:
 - ${{ if eq(parameters.DoPGO, 'true') }}:
   - job: Build_Python_PGO_Native
     displayName: Python PGO build
+    dependsOn: []
 
     workspace:
       clean: all
@@ -210,6 +213,7 @@ jobs:
   - ${{ if eq(parameters.DoPGOARM64, 'true') }}:
     - job: Build_Python_PGO_1
       displayName: Python PGO build
+      dependsOn: []
 
       workspace:
         clean: all
@@ -324,6 +328,7 @@ jobs:
 
 - job: TclTk_Lib
   displayName: Publish Tcl/Tk Library
+  dependsOn: []
 
   variables:
     IncludeLLVM: false

windows-release/start-arm64vm.yml

@@ -0,0 +1,27 @@
+jobs:
+- job: Start_ARM64VM
+  displayName: 'Ensure ARM64 VM is running'
+  dependsOn: []
+
+  steps:
+  - task: AzureCLI@2
+    displayName: 'Start pythonarm64 and set auto-shutdown to (UTC now - 1h)'
+    inputs:
+      azureSubscription: "Steve's VM"   # WIF service connection name
+      scriptType: pscore
+      scriptLocation: inlineScript
+      inlineScript: |
+        $ErrorActionPreference = 'Stop'
+  
+        $rg = 'cpythonbuild'
+        $vm = 'pythonarm64'
+  
+        # Compute UTC time minus 1 hour, format HHmm (e.g. 1830)
+        $shutdownTime = (Get-Date).ToUniversalTime().AddHours(-1).ToString('HHmm')
+        Write-Host "Setting auto-shutdown time (UTC HHmm) to: $shutdownTime"
+  
+        # Configure daily auto-shutdown in 23 hours
+        az vm auto-shutdown -g $rg -n $vm --time $shutdownTime
+  
+        # Start VM, but don't fail if it's already running
+        az vm start -g $rg -n $vm