chiefgeek
a1a17e81a1
Includes updated JS challenge scripts with Claude-User whitelist, same-site referer bypass, Blackbox-Exporter allowed bot, and all new exporters, cheat sheets, and automation scripts.
438 lines
16 KiB
PowerShell
438 lines
16 KiB
PowerShell
<#
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.SYNOPSIS
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Hyper-V Replica Prometheus Metrics Exporter
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.DESCRIPTION
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Prometheus exporter for Hyper-V Replica - replication health, state, last
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replication time, replication frequency, pending bytes, missed replications,
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VM replication count, and failover readiness. Exports metrics as
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Prometheus-compatible text format.
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.PARAMETER Mode
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Output mode: 'stdout' (default), 'textfile', or 'http'
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.PARAMETER Port
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HTTP port for http mode (default: 9517)
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.PARAMETER TextfileDir
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Directory for textfile collector output (default: C:\ProgramData\node_exporter)
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.PARAMETER InstallScheduledTask
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Switch to create a scheduled task for auto-start on system boot
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.PARAMETER TaskIntervalMinutes
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Interval in minutes for the scheduled task (default: 2)
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.NOTES
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Author: Phil Connor
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Contact: contact@mylinux.work
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Website: https://mylinux.work
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License: MIT
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Version: 1.0
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Metrics Exported:
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Core Status:
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- hyperv_replica_up
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- hyperv_replica_exporter_info{version}
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Per-VM Replication:
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- hyperv_replica_vm_state{vm, state}
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- hyperv_replica_vm_health{vm, health}
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- hyperv_replica_vm_last_replication_timestamp{vm}
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- hyperv_replica_vm_frequency_seconds{vm}
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- hyperv_replica_vm_pending_bytes{vm}
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- hyperv_replica_vm_missed_count{vm}
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- hyperv_replica_vm_failover_ready{vm}
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- hyperv_replica_vm_role{vm, role}
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Totals:
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- hyperv_replica_total_vms
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- hyperv_replica_healthy_vms
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Exporter:
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- hyperv_replica_exporter_duration_seconds
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- hyperv_replica_exporter_last_run_timestamp
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#>
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param(
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[ValidateSet('stdout', 'textfile', 'http')]
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[string]$Mode = 'stdout',
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[int]$Port = 9517,
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[string]$TextfileDir = 'C:\ProgramData\node_exporter',
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[switch]$InstallScheduledTask,
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[int]$TaskIntervalMinutes = 2
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)
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# Create a scheduled task to run this script every $TaskIntervalMinutes minutes
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if ($InstallScheduledTask) {
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$taskName = "HyperVReplicaMetricsExporter"
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$existingTask = Get-ScheduledTask -TaskName $taskName -ErrorAction SilentlyContinue
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if (-not $existingTask) {
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$taskAction = New-ScheduledTaskAction -Execute "powershell.exe" -Argument "-NoProfile -ExecutionPolicy Bypass -File `"$($MyInvocation.MyCommand.Path)`" -Mode textfile"
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if (-not $TaskIntervalMinutes -or $TaskIntervalMinutes -le 0) {
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throw "TaskIntervalMinutes must be a positive integer"
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}
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$taskTrigger = New-ScheduledTaskTrigger -Once -At (Get-Date).AddMinutes(1) -RepetitionInterval (New-TimeSpan -Minutes $TaskIntervalMinutes) -RepetitionDuration (New-TimeSpan -Days 365)
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$taskPrincipal = New-ScheduledTaskPrincipal -UserId "SYSTEM" -LogonType ServiceAccount -RunLevel Highest
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try {
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Write-Host "Creating scheduled task: $taskName"
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Register-ScheduledTask -TaskName $taskName -Action $taskAction -Trigger $taskTrigger -Principal $taskPrincipal -Description "Exports Hyper-V Replica metrics for Prometheus every $TaskIntervalMinutes minutes"
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$createdTask = Get-ScheduledTask -TaskName $taskName -ErrorAction SilentlyContinue
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if (-not $createdTask) {
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throw "Failed to verify scheduled task creation"
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}
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Write-Host "Successfully created scheduled task: $taskName" -ForegroundColor Green
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} catch {
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Write-Error "Failed to create scheduled task: $($_.Exception.Message)"
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throw
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}
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} else {
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Write-Host "Scheduled task '$taskName' already exists, skipping creation"
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}
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}
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$ErrorActionPreference = 'SilentlyContinue'
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# ============================================================================
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# HELPER FUNCTIONS
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# ============================================================================
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function Get-UnixTimestamp {
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[int][double]::Parse((Get-Date -UFormat '%s'))
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}
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function Format-MetricValue {
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param([double]$Value, [int]$Decimals = 2)
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[math]::Round($Value, $Decimals)
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}
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# ============================================================================
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# HYPER-V REPLICA METRICS
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# ============================================================================
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function Get-HyperVReplicaMetrics {
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$sb = [System.Text.StringBuilder]::new()
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try {
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$replicas = @(Get-VMReplication -ErrorAction Stop)
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} catch {
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$replicas = @()
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}
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$replicationStates = @('Replicating', 'Suspended', 'WaitingForInitialReplication', 'WaitingForStartResynchronize', 'Resynchronizing', 'ResynchronizeSuspended', 'WaitingForUpdateCompletion', 'WaitingForRepurposeCompletion', 'ReadyForInitialReplication', 'FailedOver', 'NotApplicable')
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$healthStates = @('Normal', 'Warning', 'Critical')
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# --- hyperv_replica_vm_state ---
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[void]$sb.AppendLine('# HELP hyperv_replica_vm_state Replication state of VM (1=current state)')
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[void]$sb.AppendLine('# TYPE hyperv_replica_vm_state gauge')
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try {
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foreach ($vm in $replicas) {
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$vmName = $vm.VMName
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$currentState = $vm.State.ToString()
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foreach ($state in $replicationStates) {
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$val = if ($state -eq $currentState) { 1 } else { 0 }
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[void]$sb.AppendLine("hyperv_replica_vm_state{vm=`"$vmName`",state=`"$state`"} $val")
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}
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}
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} catch {
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[void]$sb.AppendLine("hyperv_replica_vm_state 0")
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}
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[void]$sb.AppendLine('')
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# --- hyperv_replica_vm_health ---
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[void]$sb.AppendLine('# HELP hyperv_replica_vm_health Replication health of VM (1=current health)')
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[void]$sb.AppendLine('# TYPE hyperv_replica_vm_health gauge')
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try {
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foreach ($vm in $replicas) {
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$vmName = $vm.VMName
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$currentHealth = $vm.Health.ToString()
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foreach ($health in $healthStates) {
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$val = if ($health -eq $currentHealth) { 1 } else { 0 }
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[void]$sb.AppendLine("hyperv_replica_vm_health{vm=`"$vmName`",health=`"$health`"} $val")
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}
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}
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} catch {
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[void]$sb.AppendLine("hyperv_replica_vm_health 0")
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}
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[void]$sb.AppendLine('')
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# --- hyperv_replica_vm_last_replication_timestamp ---
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[void]$sb.AppendLine('# HELP hyperv_replica_vm_last_replication_timestamp Unix timestamp of last successful replication')
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[void]$sb.AppendLine('# TYPE hyperv_replica_vm_last_replication_timestamp gauge')
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try {
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foreach ($vm in $replicas) {
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$vmName = $vm.VMName
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$lastReplTime = $vm.LastReplicationTime
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if ($lastReplTime) {
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$epoch = [int][double]::Parse((Get-Date $lastReplTime -UFormat '%s'))
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[void]$sb.AppendLine("hyperv_replica_vm_last_replication_timestamp{vm=`"$vmName`"} $epoch")
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} else {
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[void]$sb.AppendLine("hyperv_replica_vm_last_replication_timestamp{vm=`"$vmName`"} 0")
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}
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}
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} catch {
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[void]$sb.AppendLine("hyperv_replica_vm_last_replication_timestamp 0")
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}
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[void]$sb.AppendLine('')
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# --- hyperv_replica_vm_frequency_seconds ---
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[void]$sb.AppendLine('# HELP hyperv_replica_vm_frequency_seconds Replication frequency in seconds')
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[void]$sb.AppendLine('# TYPE hyperv_replica_vm_frequency_seconds gauge')
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try {
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foreach ($vm in $replicas) {
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$vmName = $vm.VMName
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$freqSec = $vm.FrequencySec
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if (-not $freqSec) { $freqSec = 0 }
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[void]$sb.AppendLine("hyperv_replica_vm_frequency_seconds{vm=`"$vmName`"} $freqSec")
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}
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} catch {
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[void]$sb.AppendLine("hyperv_replica_vm_frequency_seconds 0")
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}
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[void]$sb.AppendLine('')
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# --- hyperv_replica_vm_pending_bytes ---
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[void]$sb.AppendLine('# HELP hyperv_replica_vm_pending_bytes Pending replication data in bytes')
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[void]$sb.AppendLine('# TYPE hyperv_replica_vm_pending_bytes gauge')
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try {
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foreach ($vm in $replicas) {
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$vmName = $vm.VMName
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$pending = $vm.PendingReplicationSize
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if (-not $pending) { $pending = 0 }
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[void]$sb.AppendLine("hyperv_replica_vm_pending_bytes{vm=`"$vmName`"} $pending")
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}
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} catch {
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[void]$sb.AppendLine("hyperv_replica_vm_pending_bytes 0")
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}
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[void]$sb.AppendLine('')
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# --- hyperv_replica_vm_missed_count ---
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[void]$sb.AppendLine('# HELP hyperv_replica_vm_missed_count Number of missed replication cycles')
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[void]$sb.AppendLine('# TYPE hyperv_replica_vm_missed_count gauge')
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try {
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foreach ($vm in $replicas) {
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$vmName = $vm.VMName
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$missed = $vm.MissedReplicationCount
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if (-not $missed) { $missed = 0 }
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[void]$sb.AppendLine("hyperv_replica_vm_missed_count{vm=`"$vmName`"} $missed")
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}
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} catch {
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[void]$sb.AppendLine("hyperv_replica_vm_missed_count 0")
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}
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[void]$sb.AppendLine('')
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# --- hyperv_replica_vm_failover_ready ---
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[void]$sb.AppendLine('# HELP hyperv_replica_vm_failover_ready Test replica available for failover (1=yes, 0=no)')
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[void]$sb.AppendLine('# TYPE hyperv_replica_vm_failover_ready gauge')
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try {
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foreach ($vm in $replicas) {
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$vmName = $vm.VMName
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$testReplicaAvailable = $vm.TestReplicaObject
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$val = if ($testReplicaAvailable) { 1 } else { 0 }
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[void]$sb.AppendLine("hyperv_replica_vm_failover_ready{vm=`"$vmName`"} $val")
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}
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} catch {
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[void]$sb.AppendLine("hyperv_replica_vm_failover_ready 0")
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}
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[void]$sb.AppendLine('')
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# --- hyperv_replica_vm_role ---
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[void]$sb.AppendLine('# HELP hyperv_replica_vm_role Replication role of VM (1=current role)')
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[void]$sb.AppendLine('# TYPE hyperv_replica_vm_role gauge')
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try {
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$roles = @('Primary', 'Replica')
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foreach ($vm in $replicas) {
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$vmName = $vm.VMName
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$currentRole = $vm.ReplicationMode.ToString()
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foreach ($role in $roles) {
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$val = if ($role -eq $currentRole) { 1 } else { 0 }
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[void]$sb.AppendLine("hyperv_replica_vm_role{vm=`"$vmName`",role=`"$role`"} $val")
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}
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}
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} catch {
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[void]$sb.AppendLine("hyperv_replica_vm_role 0")
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}
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[void]$sb.AppendLine('')
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# --- hyperv_replica_total_vms ---
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[void]$sb.AppendLine('# HELP hyperv_replica_total_vms Total VMs with replication configured')
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[void]$sb.AppendLine('# TYPE hyperv_replica_total_vms gauge')
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try {
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$totalVms = $replicas.Count
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[void]$sb.AppendLine("hyperv_replica_total_vms $totalVms")
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} catch {
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[void]$sb.AppendLine("hyperv_replica_total_vms 0")
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}
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[void]$sb.AppendLine('')
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# --- hyperv_replica_healthy_vms ---
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[void]$sb.AppendLine('# HELP hyperv_replica_healthy_vms VMs with Normal replication health')
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[void]$sb.AppendLine('# TYPE hyperv_replica_healthy_vms gauge')
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try {
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$healthyCount = ($replicas | Where-Object { $_.Health.ToString() -eq 'Normal' } | Measure-Object).Count
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[void]$sb.AppendLine("hyperv_replica_healthy_vms $healthyCount")
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} catch {
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[void]$sb.AppendLine("hyperv_replica_healthy_vms 0")
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}
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[void]$sb.AppendLine('')
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$sb.ToString()
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}
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# ============================================================================
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# COLLECT ALL METRICS
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# ============================================================================
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function Get-AllMetrics {
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$scriptStart = Get-Date
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$sb = [System.Text.StringBuilder]::new()
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# Exporter up
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[void]$sb.AppendLine('# HELP hyperv_replica_up Hyper-V Replica exporter status (1=up, 0=down)')
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[void]$sb.AppendLine('# TYPE hyperv_replica_up gauge')
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try {
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$vmms = Get-Service -Name vmms -ErrorAction Stop
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$upVal = if ($vmms.Status -eq 'Running') { 1 } else { 0 }
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[void]$sb.AppendLine("hyperv_replica_up $upVal")
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} catch {
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[void]$sb.AppendLine("hyperv_replica_up 0")
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}
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[void]$sb.AppendLine('')
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# Exporter info
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[void]$sb.AppendLine('# HELP hyperv_replica_exporter_info Exporter version information')
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[void]$sb.AppendLine('# TYPE hyperv_replica_exporter_info gauge')
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[void]$sb.AppendLine('hyperv_replica_exporter_info{version="1.0"} 1')
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[void]$sb.AppendLine('')
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# Collect Hyper-V Replica metrics
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[void]$sb.Append((Get-HyperVReplicaMetrics))
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# Exporter runtime
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$scriptEnd = Get-Date
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$duration = Format-MetricValue ($scriptEnd - $scriptStart).TotalSeconds
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$timestamp = Get-UnixTimestamp
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[void]$sb.AppendLine('# HELP hyperv_replica_exporter_duration_seconds Time to generate all metrics')
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[void]$sb.AppendLine('# TYPE hyperv_replica_exporter_duration_seconds gauge')
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[void]$sb.AppendLine("hyperv_replica_exporter_duration_seconds $duration")
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[void]$sb.AppendLine('')
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[void]$sb.AppendLine('# HELP hyperv_replica_exporter_last_run_timestamp Unix timestamp of last successful run')
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[void]$sb.AppendLine('# TYPE hyperv_replica_exporter_last_run_timestamp gauge')
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[void]$sb.AppendLine("hyperv_replica_exporter_last_run_timestamp $timestamp")
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[void]$sb.AppendLine('')
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$sb.ToString()
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}
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# ============================================================================
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# HTTP SERVER MODE
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# ============================================================================
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function Start-HttpServer {
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param([int]$ListenPort)
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$prefix = "http://+:$ListenPort/"
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$listener = [System.Net.HttpListener]::new()
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$listener.Prefixes.Add($prefix)
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try {
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$listener.Start()
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Write-Host "Starting Hyper-V Replica metrics exporter on port $ListenPort..." -ForegroundColor Green
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Write-Host "Metrics available at http://localhost:$ListenPort/metrics"
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while ($listener.IsListening) {
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$context = $listener.GetContext()
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$request = $context.Request
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$response = $context.Response
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if ($request.Url.AbsolutePath -eq '/metrics') {
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$metrics = Get-AllMetrics
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$buffer = [System.Text.Encoding]::UTF8.GetBytes($metrics)
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$response.ContentType = 'text/plain; version=0.0.4; charset=utf-8'
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}
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else {
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$html = @"
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<!DOCTYPE html>
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<html>
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<head><title>Hyper-V Replica Metrics Exporter v1.0</title></head>
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<body>
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<h1>Hyper-V Replica Metrics Exporter v1.0</h1>
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<p><a href="/metrics">Metrics</a></p>
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<h2>Metrics</h2>
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<ul>
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<li>Per-VM replication state and health</li>
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<li>Last replication time and frequency</li>
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<li>Pending replication bytes</li>
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<li>Missed replication count</li>
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<li>Failover readiness</li>
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<li>Replication role (Primary/Replica)</li>
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<li>Total and healthy VM counts</li>
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</ul>
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</body>
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</html>
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"@
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$buffer = [System.Text.Encoding]::UTF8.GetBytes($html)
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$response.ContentType = 'text/html; charset=utf-8'
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}
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$response.ContentLength64 = $buffer.Length
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$response.OutputStream.Write($buffer, 0, $buffer.Length)
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$response.OutputStream.Close()
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}
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}
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catch {
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Write-Error "HTTP server error: $_"
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Write-Error "If access denied, run: netsh http add urlacl url=http://+:$ListenPort/ user=Everyone"
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}
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finally {
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if ($listener.IsListening) {
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$listener.Stop()
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}
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}
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}
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# ============================================================================
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# MAIN EXECUTION
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# ============================================================================
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switch ($Mode) {
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'http' {
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Start-HttpServer -ListenPort $Port
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}
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'textfile' {
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$OutputFile = Join-Path $TextfileDir 'hyperv_replica_metrics.prom'
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$outputDir = Split-Path $OutputFile -Parent
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if (-not (Test-Path $outputDir)) {
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New-Item -Path $outputDir -ItemType Directory -Force | Out-Null
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}
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$tempFile = Join-Path $outputDir ".hyperv_replica_metrics.$PID.tmp"
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try {
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$metrics = Get-AllMetrics
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$metrics | Out-File -FilePath $tempFile -Encoding utf8 -NoNewline
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$lineCount = ($metrics -split "`n").Count
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if ($lineCount -lt 10) {
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Remove-Item -Path $tempFile -Force -ErrorAction SilentlyContinue
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Write-Error "Metrics file too small ($lineCount lines), keeping previous"
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exit 1
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}
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Move-Item -Path $tempFile -Destination $OutputFile -Force
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Write-Host "Metrics written to $OutputFile ($lineCount lines)" -ForegroundColor Green
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}
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catch {
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Remove-Item -Path $tempFile -Force -ErrorAction SilentlyContinue
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Write-Error "Failed to generate metrics: $_"
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exit 1
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}
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}
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default {
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Get-AllMetrics | Write-Output
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}
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}
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