Add macOS and Windows agents + multi-platform install UI
- agent/skywatch-agent-macos.sh: Full macOS bash agent (launchd) - CPU via top -l 2, memory via vm_stat/sysctl, disk via df -P - Network via netstat -ib, uptime via kern.boottime, OS via sw_vers - agent/install-agent-macos.sh: Installs macOS agent as launchd daemon - agent/skywatch-agent-windows.ps1: PowerShell agent (Task Scheduler) - CPU via Win32_PerfRawData two-sample delta, memory via Win32_OperatingSystem - Disk via Get-PSDrive, network via Get-NetAdapterStatistics - agent/install-agent-windows.ps1: Installs Windows agent via Task Scheduler - server/index.js: New routes for macOS and Windows agent scripts/installers - client/src/Agents.js: Multi-platform install panel with Linux/macOS/Windows tabs - client/src/Agents.css: Platform tab button styles Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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nmemmertandClaude Sonnet 4.6 committed
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#Requires -Version 5.1
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<#
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.SYNOPSIS
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SkyWatch Windows Agent v1.0.0
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.DESCRIPTION
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Collects system metrics and sends to SkyWatch monitoring server.
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Metrics: CPU%, Memory, Disk, Network I/O, Process count, Uptime, OS info.
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Run via Task Scheduler (installed by install-agent-windows.ps1).
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.PARAMETER ConfigFile
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Path to the configuration file (default: C:\ProgramData\SkyWatch\agent.conf)
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#>
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param(
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[string]$ConfigFile = "C:\ProgramData\SkyWatch\agent.conf"
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)
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$VERSION = "1.0.0"
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$LogFile = "C:\ProgramData\SkyWatch\agent.log"
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$InstallDir = Split-Path $ConfigFile
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# ── Logging ───────────────────────────────────────────────────────────────────
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function Write-Log {
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param([string]$Message)
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$ts = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
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$line = "[$ts] $Message"
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Write-Host $line
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try { Add-Content -Path $LogFile -Value $line -ErrorAction Stop } catch {}
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}
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# ── Config ────────────────────────────────────────────────────────────────────
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function Load-Config {
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$script:SKYWATCH_URL = ""
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$script:AGENT_TOKEN = ""
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$script:REPORT_INTERVAL = 60
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$script:AGENT_NAME = ""
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$script:REGISTRATION_KEY = ""
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if (Test-Path $ConfigFile) {
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Get-Content $ConfigFile | ForEach-Object {
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if ($_ -match '^([A-Z_]+)="?(.*?)"?\s*$') {
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$key = $matches[1]; $val = $matches[2]
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switch ($key) {
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"SKYWATCH_URL" { $script:SKYWATCH_URL = $val }
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"AGENT_TOKEN" { $script:AGENT_TOKEN = $val }
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"REPORT_INTERVAL" { $script:REPORT_INTERVAL = [int]$val }
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"AGENT_NAME" { $script:AGENT_NAME = $val }
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"REGISTRATION_KEY" { $script:REGISTRATION_KEY = $val }
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}
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}
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}
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}
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}
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function Save-Config {
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if (-not (Test-Path $InstallDir)) {
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New-Item -ItemType Directory -Path $InstallDir -Force | Out-Null
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}
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@"
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SKYWATCH_URL="$script:SKYWATCH_URL"
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AGENT_TOKEN="$script:AGENT_TOKEN"
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REPORT_INTERVAL=$script:REPORT_INTERVAL
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AGENT_NAME="$script:AGENT_NAME"
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REGISTRATION_KEY="$script:REGISTRATION_KEY"
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"@ | Set-Content $ConfigFile -Encoding UTF8
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}
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# ── Metrics ───────────────────────────────────────────────────────────────────
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function Get-CpuPercent {
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try {
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# Two raw counter samples 1 second apart for accurate delta
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$s1 = Get-CimInstance -ClassName Win32_PerfRawData_PerfOS_Processor -Filter "Name='_Total'"
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Start-Sleep -Seconds 1
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$s2 = Get-CimInstance -ClassName Win32_PerfRawData_PerfOS_Processor -Filter "Name='_Total'"
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$idleDelta = $s2.PercentIdleTime - $s1.PercentIdleTime
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$totalDelta = $s2.Timestamp_Sys100NS - $s1.Timestamp_Sys100NS
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if ($totalDelta -gt 0) {
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$idlePct = ($idleDelta / $totalDelta) * 100
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return [Math]::Round(100 - $idlePct, 1)
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}
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} catch {}
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# Fallback: WMI LoadPercentage (less accurate but always available)
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try {
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$avg = (Get-WmiObject Win32_Processor | Measure-Object -Property LoadPercentage -Average).Average
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return [Math]::Round($avg, 1)
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} catch { return 0.0 }
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}
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function Get-MemoryStats {
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try {
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$os = Get-CimInstance Win32_OperatingSystem
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$totalMB = [long][Math]::Round($os.TotalVisibleMemorySize / 1024)
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$freeMB = [long][Math]::Round($os.FreePhysicalMemory / 1024)
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$usedMB = $totalMB - $freeMB
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$pct = if ($totalMB -gt 0) { [Math]::Round($usedMB * 100.0 / $totalMB, 1) } else { 0.0 }
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return @{ total = $totalMB; used = $usedMB; percent = $pct }
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} catch {
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return @{ total = 0; used = 0; percent = 0.0 }
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}
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}
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function Get-DiskStats {
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$disks = [System.Collections.Generic.List[hashtable]]::new()
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try {
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Get-PSDrive -PSProvider FileSystem | Where-Object { $_.Root -match '^[A-Za-z]:\\' } | ForEach-Object {
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$total = $_.Used + $_.Free
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$totalMB = [long][Math]::Round($total / 1MB)
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$usedMB = [long][Math]::Round($_.Used / 1MB)
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$pct = if ($total -gt 0) { [int][Math]::Round($_.Used * 100.0 / $total) } else { 0 }
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$disks.Add(@{ path = $_.Root; total_mb = $totalMB; used_mb = $usedMB; percent = $pct })
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}
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} catch {}
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return $disks
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}
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function Get-NetBytes {
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try {
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$up = Get-NetAdapter | Where-Object { $_.Status -eq 'Up' } | Select-Object -ExpandProperty Name
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if ($up) {
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$stats = Get-NetAdapterStatistics -Name $up -ErrorAction SilentlyContinue
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$sent = ($stats | Measure-Object -Property SentBytes -Sum).Sum
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$recv = ($stats | Measure-Object -Property ReceivedBytes -Sum).Sum
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return @{ sent = [long]$sent; recv = [long]$recv }
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}
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} catch {}
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return @{ sent = 0L; recv = 0L }
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}
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function Get-UptimeSeconds {
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try {
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$boot = (Get-CimInstance Win32_OperatingSystem).LastBootUpTime
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return [long](New-TimeSpan -Start $boot -End (Get-Date)).TotalSeconds
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} catch { return 0L }
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}
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function Get-OsInfo {
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try { return (Get-CimInstance Win32_OperatingSystem).Caption.Trim() }
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catch { return "Windows" }
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}
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function Get-PrimaryIP {
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try {
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$route = Get-NetRoute -DestinationPrefix '0.0.0.0/0' -ErrorAction SilentlyContinue |
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Sort-Object RouteMetric | Select-Object -First 1
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if ($route) {
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$ip = Get-NetIPAddress -InterfaceIndex $route.ifIndex -AddressFamily IPv4 -ErrorAction SilentlyContinue |
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Where-Object { $_.IPAddress -notmatch '^169\.254\.' } |
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Select-Object -First 1 -ExpandProperty IPAddress
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return "$ip"
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}
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} catch {}
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return ""
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}
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# ── Registration ──────────────────────────────────────────────────────────────
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function Register-Agent {
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$name = if ($script:AGENT_NAME) { $script:AGENT_NAME } else { $env:COMPUTERNAME }
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$hostname = $env:COMPUTERNAME
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$ip = Get-PrimaryIP
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$os = Get-OsInfo
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Write-Log "Registering agent '$name' with $script:SKYWATCH_URL ..."
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$body = @{ name = $name; hostname = $hostname; ip_address = $ip; os_info = $os } | ConvertTo-Json
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$headers = @{ 'Content-Type' = 'application/json' }
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if ($script:REGISTRATION_KEY) { $headers['X-Registration-Key'] = $script:REGISTRATION_KEY }
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try {
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$resp = Invoke-RestMethod -Uri "$script:SKYWATCH_URL/api/agents/register" `
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-Method POST -Body $body -Headers $headers -TimeoutSec 30
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if ($resp.token) {
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$script:AGENT_TOKEN = $resp.token
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Save-Config
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Write-Log "Registered. Token stored in $ConfigFile"
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return $true
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}
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} catch { Write-Log "ERROR: Registration failed: $_" }
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return $false
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}
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# ── Metrics report ────────────────────────────────────────────────────────────
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function Send-Metrics {
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$cpu = Get-CpuPercent # includes 1s sleep
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$mem = Get-MemoryStats
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$disks = Get-DiskStats
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$net = Get-NetBytes
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$uptime = Get-UptimeSeconds
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$procs = try { (Get-Process -ErrorAction SilentlyContinue).Count } catch { 0 }
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$ip = Get-PrimaryIP
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$payload = [ordered]@{
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cpu_percent = $cpu
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mem_total = $mem.total
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mem_used = $mem.used
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mem_percent = $mem.percent
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disk = @($disks)
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load_1 = 0.0
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load_5 = 0.0
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load_15 = 0.0
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uptime_seconds = $uptime
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process_count = $procs
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net_bytes_sent = $net.sent
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net_bytes_recv = $net.recv
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ip_address = $ip
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} | ConvertTo-Json -Depth 3
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try {
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$resp = Invoke-RestMethod `
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-Uri "$script:SKYWATCH_URL/api/agents/report" `
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-Method POST `
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-Body $payload `
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-Headers @{ 'Content-Type' = 'application/json'; 'Authorization' = "Bearer $script:AGENT_TOKEN" } `
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-TimeoutSec 15
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if ($resp.ok) {
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Write-Log "OK cpu=$($cpu)% mem=$($mem.used)/$($mem.total)MB procs=$procs"
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} else {
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Write-Log "WARNING: Server rejected metrics"
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}
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} catch {
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Write-Log "WARNING: Failed to send metrics: $_"
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}
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}
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# ── Main ──────────────────────────────────────────────────────────────────────
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# Ensure log directory exists
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if (-not (Test-Path $InstallDir)) { New-Item -ItemType Directory -Path $InstallDir -Force | Out-Null }
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Load-Config
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if (-not $script:SKYWATCH_URL) {
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Write-Error "SKYWATCH_URL is not set. Edit $ConfigFile or re-run the installer."
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exit 1
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}
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if (-not $script:AGENT_TOKEN) {
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if (-not (Register-Agent)) {
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Write-Log "Retrying registration in 60s ..."
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Start-Sleep -Seconds 60
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if (-not (Register-Agent)) { exit 1 }
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}
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}
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$interval = if ($script:REPORT_INTERVAL -gt 0) { $script:REPORT_INTERVAL } else { 60 }
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Write-Log "SkyWatch Agent v$VERSION started (Windows) — server=$script:SKYWATCH_URL interval=${interval}s"
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while ($true) {
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Send-Metrics
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Start-Sleep -Seconds ($interval - 1) # -1 accounts for the 1s CPU sample sleep
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}
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