为 运行 Powershell 命令创建 AWS SSM 文档

Question

我正在尝试制作运行以下 Powershell 脚本的 SSM 文档：

New-Item -ItemType Directory -Force -Path C:\temp
$checkupdatesscript = "`$UpdateSession = New-Object -ComObject Microsoft.Update.Session"
$checkupdatesscript | Out-File C:\temp\checkwindowsupdates.ps1
Add-Content -Path C:\temp\checkwindowsupdates.ps1 -Value "`$UpdateSearcher = `$UpdateSession.CreateupdateSearcher()"
Add-Content -Path C:\temp\checkwindowsupdates.ps1 -Value "`$Updates = @(`$UpdateSearcher.Search(`"IsHidden=0 and IsInstalled=0`").Updates)"
Add-Content -Path C:\temp\checkwindowsupdates.ps1 -Value "`$Updates | Select-Object Title > C:\temp\windowsupdates.txt" 
$action = New-ScheduledTaskAction -Execute 'Powershell.exe' -Argument "C:\temp\checkwindowsupdates.ps1"
$trigger =  New-ScheduledTaskTrigger -Once -At (Get-Date) -RepetitionInterval (New-TimeSpan -Minutes 5)
Register-ScheduledTask -Action $action -Trigger $trigger -TaskName "Check Windows Updates" -Description "checks for any outstanding windows updates every 5 minutes" 

我在 YAML 中创建了以下 SSM 文档：

---
schemaVersion: "2.2"
description: "Creates script and scheduled task to check for any outstanding windows updates every 5 minutes"
mainSteps:
- action: "aws:runPowerShellScript"
  name: "RunCommands"
  inputs:
    runCommand:
      - "New-Item -ItemType Directory -Force -Path C:\temp"
      - "$checkupdatesscript = \"`$UpdateSession = New-Object -ComObject Microsoft.Update.Session\""
      - "$checkupdatesscript | Out-File C:\temp\checkwindowsupdates.ps1"
      - "Add-Content -Path C:\temp\checkwindowsupdates.ps1 -Value \"`$UpdateSearcher = `$UpdateSession.CreateupdateSearcher()\""
      - "Add-Content -Path C:\temp\checkwindowsupdates.ps1 -Value \"`$Updates = @(`$UpdateSearcher.Search(`\"IsHidden=0 and IsInstalled=0`\").Updates)\""
      - "Add-Content -Path C:\temp\checkwindowsupdates.ps1 -Value \"`$Updates | Select-Object Title > C:\temp\windowsupdates.txt\""
      - "$action = New-ScheduledTaskAction -Execute \"Powershell.exe\" -Argument \"C:\temp\checkwindowsupdates.ps1\""
      - "$trigger =  New-ScheduledTaskTrigger -Once -At (Get-Date) -RepetitionInterval (New-TimeSpan -Minutes 5)"
      - "Register-ScheduledTask -Action $action -Trigger $trigger -TaskName \"Check Windows Updates\" -Description \"checks for any outstanding windows updates every 5 minutes\""

但是在尝试创建文档时收到错误消息。错误是“InvalidDocumentContent: null”

我假设我弄乱了 YAML，但似乎无法弄清楚是什么。

Answer 1

问题确实出在 YAML 中。我没有转义文件路径中的反斜杠。正确的 yaml 应如下所示：

---
schemaVersion: "2.2"
description: "Creates script and scheduled task to check for any outstanding windows updates every 5 minutes"
mainSteps:
- action: "aws:runPowerShellScript"
  name: "RunCommands"
  inputs:
    runCommand:
      - "New-Item -ItemType Directory -Force -Path C:\temp"
      - "$checkupdatesscript = \"`$UpdateSession = New-Object -ComObject Microsoft.Update.Session\""
      - "$checkupdatesscript | Out-File C:\temp\checkwindowsupdates.ps1"
      - "Add-Content -Path C:\temp\checkwindowsupdates.ps1 -Value \"`$UpdateSearcher = `$UpdateSession.CreateupdateSearcher()\""
      - "Add-Content -Path C:\temp\checkwindowsupdates.ps1 -Value \"`$Updates = @(`$UpdateSearcher.Search(`\"IsHidden=0 and IsInstalled=0`\").Updates)\""
      - "Add-Content -Path C:\temp\checkwindowsupdates.ps1 -Value \"`$Updates | Select-Object Title > C:\temp\windowsupdates.txt\""
      - "$action = New-ScheduledTaskAction -Execute \"Powershell.exe\" -Argument \"C:\temp\checkwindowsupdates.ps1\""
      - "$trigger =  New-ScheduledTaskTrigger -Once -At (Get-Date) -RepetitionInterval (New-TimeSpan -Minutes 5)"
      - "Register-ScheduledTask -Action $action -Trigger $trigger -TaskName \"Check Windows Updates\" -Description \"checks for any outstanding windows updates every 5 minutes\""