Add local Jenkins controller watchdog

scripts/build-production-release.sh

@@ -373,6 +373,7 @@ cp "${SCRIPT_DIR}/deploy/maintenance-status.sh" "${TARGET_DIR}/scripts/maintenan
 cp "${SCRIPT_DIR}/deploy/jenkins-inbound-agent-start.sh" "${TARGET_DIR}/scripts/jenkins-inbound-agent-start.sh"
 cp "${SCRIPT_DIR}/deploy/install-jenkins-inbound-agent.sh" "${TARGET_DIR}/scripts/install-jenkins-inbound-agent.sh"
 cp "${SCRIPT_DIR}/deploy/jenkins-agent-reverse-tunnel.ps1" "${TARGET_DIR}/scripts/jenkins-agent-reverse-tunnel.ps1"
+cp "${SCRIPT_DIR}/deploy/jenkins-local-controller-watchdog.ps1" "${TARGET_DIR}/scripts/jenkins-local-controller-watchdog.ps1"
 chmod +x \
   "${TARGET_DIR}/scripts/maintenance-on.sh" \
   "${TARGET_DIR}/scripts/maintenance-off.sh" \

scripts/deploy/jenkins-local-controller-watchdog.ps1

@@ -0,0 +1,95 @@
+param(
+  [string]$JavaPath = "$env:USERPROFILE\jenkins-local\jdk-21\jdk-21.0.11+10\bin\java.exe",
+  [string]$JenkinsWar = "$env:USERPROFILE\jenkins-local\jenkins.war",
+  [string]$JenkinsHome = "$env:USERPROFILE\.jenkins",
+  [int]$HttpPort = 8080,
+  [int]$AgentPort = 50000,
+  [int]$RestartDelaySeconds = 10
+)
+
+$ErrorActionPreference = "Stop"
+
+function Write-Log {
+  param([string]$Message)
+  $timestamp = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
+  Write-Output "[$timestamp] $Message"
+}
+
+function Get-ListeningProcessId {
+  param([int]$Port)
+  $line = netstat -ano | Select-String -Pattern "LISTENING\s+(\d+)$" | Where-Object {
+    $_.Line -match "[:.]$Port\s+"
+  } | Select-Object -First 1
+
+  if (-not $line) {
+    return $null
+  }
+
+  if ($line.Line -match "LISTENING\s+(\d+)$") {
+    return [int]$Matches[1]
+  }
+
+  return $null
+}
+
+function Test-JenkinsProcess {
+  param([int]$ProcessId)
+  if (-not $ProcessId) {
+    return $false
+  }
+
+  $process = Get-CimInstance Win32_Process -Filter "ProcessId = $ProcessId" -ErrorAction SilentlyContinue
+  if (-not $process) {
+    return $false
+  }
+
+  return ($process.CommandLine -like "*jenkins.war*")
+}
+
+if (-not (Test-Path -LiteralPath $JavaPath)) {
+  throw "Java path not found: $JavaPath"
+}
+
+if (-not (Test-Path -LiteralPath $JenkinsWar)) {
+  throw "Jenkins war not found: $JenkinsWar"
+}
+
+New-Item -ItemType Directory -Force -Path $JenkinsHome | Out-Null
+
+while ($true) {
+  $listeningPid = Get-ListeningProcessId -Port $HttpPort
+
+  if ($listeningPid -and (Test-JenkinsProcess -ProcessId $listeningPid)) {
+    Write-Log "Jenkins is already listening on port $HttpPort with pid $listeningPid; monitoring it."
+    try {
+      Wait-Process -Id $listeningPid
+    } catch {
+      Write-Log "Existing Jenkins process wait failed: $($_.Exception.Message)"
+    }
+  } elseif ($listeningPid) {
+    Write-Log "Port $HttpPort is occupied by pid $listeningPid, but it is not Jenkins. Retrying in ${RestartDelaySeconds}s."
+    Start-Sleep -Seconds $RestartDelaySeconds
+    continue
+  } else {
+    $arguments = @(
+      "-Djenkins.install.runSetupWizard=false",
+      "-jar", $JenkinsWar,
+      "--httpPort=$HttpPort",
+      "--agentPort=$AgentPort"
+    )
+
+    Write-Log "Starting local Jenkins controller on port $HttpPort."
+    $previousJenkinsHome = $env:JENKINS_HOME
+    $env:JENKINS_HOME = $JenkinsHome
+    $process = Start-Process -FilePath $JavaPath -ArgumentList $arguments -WorkingDirectory (Split-Path -Parent $JenkinsWar) -NoNewWindow -PassThru
+    $env:JENKINS_HOME = $previousJenkinsHome
+    try {
+      Wait-Process -Id $process.Id
+    } catch {
+      Write-Log "Started Jenkins process wait failed: $($_.Exception.Message)"
+    }
+  }
+
+  Write-Log "Jenkins controller stopped; retrying in ${RestartDelaySeconds}s."
+  Start-Sleep -Seconds $RestartDelaySeconds
+}