k3s动态扩容

test-hpa-strong.ps1

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+Write-Host "=== HPA Stress Test ===" -ForegroundColor Cyan
+Write-Host ""
+
+# 配置参数
+$url = "http://localhost:30301"
+$jobCount = 50
+$requestPerJob = 5000
+
+Write-Host "Configuration:" -ForegroundColor Yellow
+Write-Host "  Target URL: $url" -ForegroundColor White
+Write-Host "  Concurrent Jobs: $jobCount" -ForegroundColor White
+Write-Host "  Requests per Job: $requestPerJob" -ForegroundColor White
+Write-Host "  Total Requests: $($jobCount * $requestPerJob)" -ForegroundColor White
+Write-Host ""
+
+# 清理旧任务
+Write-Host "[1/4] Cleaning up old jobs..." -ForegroundColor Cyan
+Get-Job | Where-Object { $_.Name -like "HPA-*" } | Stop-Job | Remove-Job
+Start-Sleep -Seconds 2
+Write-Host "[OK] Cleaned" -ForegroundColor Green
+Write-Host ""
+
+# 启动并发任务
+Write-Host "[2/4] Starting $jobCount concurrent jobs..." -ForegroundColor Cyan
+$jobs = @()
+
+for ($i = 1; $i -le $jobCount; $i++) {
+    try {
+        $job = Start-Job -Name "HPA-$i" -ScriptBlock {
+            param($targetUrl, $totalRequests)
+            $success = 0
+            $failed = 0
+
+            for ($j = 1; $j -le $totalRequests; $j++) {
+                try {
+                    $response = Invoke-WebRequest -Uri $targetUrl -Method GET -TimeoutSec 3 -UseBasicParsing
+                    if ($response.StatusCode -eq 200) {
+                        $success++
+                    }
+                } catch {
+                    $failed++
+                }
+
+                # 每 500 个请求短暂休息，避免完全耗尽资源
+                if ($j % 500 -eq 0) {
+                    Start-Sleep -Milliseconds 50
+                }
+            }
+
+            return @{
+                Success = $success
+                Failed = $failed
+            }
+        } -ArgumentList $url, $requestPerJob
+
+        $jobs += $job
+
+        if ($i % 10 -eq 0) {
+            Write-Host "  Started $i/$jobCount jobs..." -ForegroundColor Gray
+        }
+    } catch {
+        Write-Host "  Failed to start job $i : $_" -ForegroundColor Red
+    }
+}
+
+Write-Host ""
+Write-Host "[OK] All $jobCount jobs started" -ForegroundColor Green
+Write-Host ""
+
+# 显示监控命令
+Write-Host "[3/4] Monitoring Commands (run in separate windows):" -ForegroundColor Cyan
+Write-Host "  Window 1 - HPA Status:" -ForegroundColor Yellow
+Write-Host "    kubectl get hpa data-engine-hpa -w" -ForegroundColor White
+Write-Host ""
+Write-Host "  Window 2 - Pod Status:" -ForegroundColor Yellow
+Write-Host "    kubectl get pods -l app=data-engine -w" -ForegroundColor White
+Write-Host ""
+Write-Host "  Window 3 - Resource Usage:" -ForegroundColor Yellow
+Write-Host "    while(`$true) { Clear-Host; kubectl top pods -l app=data-engine; kubectl get hpa data-engine-hpa; Start-Sleep 3 }" -ForegroundColor White
+Write-Host ""
+
+# 等待用户确认
+Write-Host "[4/4] Load test is running..." -ForegroundColor Green
+Write-Host "Press any key to stop all jobs and see results..." -ForegroundColor Yellow
+$null = $Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")
+Write-Host ""
+
+# 停止所有任务
+Write-Host "Stopping all jobs..." -ForegroundColor Cyan
+Get-Job -Name "HPA-*" | Stop-Job
+
+# 收集结果
+Write-Host "Collecting results..." -ForegroundColor Cyan
+$results = Get-Job -Name "HPA-*" | Receive-Job -Wait
+Get-Job -Name "HPA-*" | Remove-Job
+
+# 统计
+$totalSuccess = 0
+$totalFailed = 0
+foreach ($result in $results) {
+    $totalSuccess += $result.Success
+    $totalFailed += $result.Failed
+}
+
+Write-Host ""
+Write-Host "========================================" -ForegroundColor Cyan
+Write-Host "         TEST RESULTS" -ForegroundColor Cyan
+Write-Host "========================================" -ForegroundColor Cyan
+Write-Host ""
+Write-Host "Total Requests:     $($totalSuccess + $totalFailed)" -ForegroundColor White
+Write-Host "Successful:         $totalSuccess" -ForegroundColor Green
+Write-Host "Failed:             $totalFailed" -ForegroundColor $(if ($totalFailed -gt 0) { "Red" } else { "Green" })
+Write-Host ""
+
+# 显示最终状态
+Write-Host "========================================" -ForegroundColor Cyan
+Write-Host "         FINAL STATUS" -ForegroundColor Cyan
+Write-Host "========================================" -ForegroundColor Cyan
+Write-Host ""
+Write-Host "[HPA Status]" -ForegroundColor Yellow
+kubectl get hpa data-engine-hpa
+Write-Host ""
+Write-Host "[Pod List]" -ForegroundColor Yellow
+kubectl get pods -l app=data-engine
+Write-Host ""
+Write-Host "[Resource Usage]" -ForegroundColor Yellow
+kubectl top pods -l app=data-engine 2>$null
+if ($LASTEXITCODE -ne 0) {
+    Write-Host "  Metrics not available" -ForegroundColor Gray
+}
+Write-Host ""
+Write-Host "========================================" -ForegroundColor Cyan
+Write-Host "Test completed!" -ForegroundColor Green