76 lines
3.6 KiB
Python
76 lines
3.6 KiB
Python
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"""Back up and deploy the VDD login refresh script in VM100, without rebooting."""
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import argparse
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import base64
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from pathlib import Path
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import runpy
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import sys
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sys.stdout.reconfigure(encoding="utf-8", errors="replace")
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parser = argparse.ArgumentParser(description=__doc__)
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parser.parse_args()
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root = Path(__file__).resolve().parent
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term = runpy.run_path(str(root / "pve_term_exec.py"))
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vm = runpy.run_path(str(root / "pve_vm.py"))
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ticket, csrf = term["login"]()
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state = vm["api"]("/api2/json/nodes/starhe/qemu/100/status/current", ticket=ticket)
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if state.get("status") != "running":
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sys.exit("VM100 is not running; nothing changed")
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payload = base64.b64encode((root / "set-2k-display.ps1").read_bytes()).decode()
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command = r"""
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$ErrorActionPreference='Stop'
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$target='C:\ProgramData\VDI\set-2k-display.ps1'
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$task='VDISet2KDisplay'
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$entry=Get-ScheduledTask -TaskName $task
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if($entry.State -eq 'Running') { throw 'Display task is already running; inspect before deployment' }
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if(-not (Test-Path -LiteralPath $target)) { throw 'Original display script is missing' }
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if(($entry.Actions | Select-Object -First 1).Arguments -notlike '*set-2k-display.ps1*') {
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throw 'Unexpected display task action; do not change it'
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}
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$backup='C:\ProgramData\VDI\backups\display-refresh-'+(Get-Date -Format 'yyyyMMdd-HHmmss')
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New-Item -ItemType Directory -Path $backup | Out-Null
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Copy-Item -LiteralPath $target -Destination "$backup\set-2k-display.ps1"
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Export-ScheduledTask -TaskName $task | Set-Content -Encoding UTF8 "$backup\VDISet2KDisplay.xml"
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if(Test-Path 'C:\ProgramData\VDI\set-2k-result.txt') {
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Copy-Item 'C:\ProgramData\VDI\set-2k-result.txt' "$backup\previous-result.txt"
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}
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$temporary=$target+'.new'
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try {
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[IO.File]::WriteAllBytes($temporary,[Convert]::FromBase64String('__PAYLOAD__'))
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Move-Item -LiteralPath $temporary -Destination $target -Force
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# Prove freshness by a newly created result file; scheduler LastRunTime can
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# lag wall-clock time after VM clock correction and is not a reliable token.
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Remove-Item -LiteralPath 'C:\ProgramData\VDI\set-2k-result.txt' -ErrorAction SilentlyContinue
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Start-ScheduledTask -TaskName $task
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Start-Sleep -Seconds 2
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for($i=0;$i -lt 20;$i++) {
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if((Get-ScheduledTask -TaskName $task).State -ne 'Running') { break }
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Start-Sleep -Seconds 1
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}
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$info=Get-ScheduledTaskInfo -TaskName $task
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if((Get-ScheduledTask -TaskName $task).State -eq 'Running' -or
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$info.LastTaskResult -ne 0) {
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throw 'New display task did not complete successfully'
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}
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$log=Get-Content 'C:\ProgramData\VDI\set-2k-result.txt' -Raw
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if($log -notmatch 'result=0 mode=2560x1440@60') { throw '60Hz read-back missing in display task log' }
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@{backup=$backup; task_result=$info.LastTaskResult; result=$log.Trim()} | ConvertTo-Json -Compress
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} catch {
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if(Test-Path 'C:\ProgramData\VDI\set-2k-result.txt') {
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Copy-Item 'C:\ProgramData\VDI\set-2k-result.txt' "$backup\failed-result.txt"
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Get-Content "$backup\failed-result.txt"
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}
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if($info) { $info | Select-Object LastTaskResult,LastRunTime | ConvertTo-Json -Compress }
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Stop-ScheduledTask -TaskName $task -ErrorAction SilentlyContinue
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Copy-Item -LiteralPath "$backup\set-2k-display.ps1" -Destination $target -Force
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Start-ScheduledTask -TaskName $task
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throw
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} finally {
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Remove-Item -LiteralPath $temporary -ErrorAction SilentlyContinue
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}
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""".replace("__PAYLOAD__", payload)
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out, error = vm["agent"](ticket, csrf, ["powershell.exe", "-NoProfile", "-Command", command])
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print(out)
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if error or '"task_result":0' not in out:
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print(error, file=sys.stderr)
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sys.exit(1)
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