发表更新powershell / devops / kubernetes1 分钟读完 (大约196个字)

PowerShell 技能连载 - Kubernetes 节点智能编排

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function Invoke-K8sNodeOrchestration {
    [CmdletBinding()]
    param(
        [ValidateSet('ScaleUp','ScaleDown','Maintenance')]
        [string]$Operation,
        [int]$NodeCount = 1
    )

    $nodePool = Get-AzAksNodePool -ClusterName 'prod-cluster'
    $metrics = Invoke-RestMethod -Uri 'http://k8s-metrics:8080/api/v1/nodes'

    switch ($Operation) {
        'ScaleUp' {
            $newCount = $nodePool.Count + $NodeCount
            Update-AzAksNodePool -Name $nodePool.Name -Count $newCount
            Write-Host "节点池已扩容至$newCount个节点"
        }
        'ScaleDown' {
            $nodesToRemove = $metrics.Nodes | 
                Where-Object { $_.CpuUsage -lt 20 } | 
                Select-Object -First $NodeCount
            $nodesToRemove | ForEach-Object {
                Set-AzAksNode -Name $_.Name -State Draining
            }
        }
        'Maintenance' {
            $metrics.Nodes | Where-Object { $_.HealthStatus -ne 'Healthy' } |
                ForEach-Object {
                    Add-K8sNodeLabel -Node $_.Name -Label @{
                        'maintenance' = (Get-Date).ToString('yyyyMMdd')
                    }
                }
        }
    }
}

核心功能：

  1. 节点自动扩缩容策略
  2. 基于资源利用率的智能调度
  3. 维护模式自动标签管理
  4. 与Azure AKS深度集成

典型应用场景：

  • 应对突发流量自动扩容节点
  • 低负载时段自动缩容节约成本
  • 异常节点自动隔离维护
  • 跨可用区节点平衡管理
发表更新powershell / tip4 分钟读完 (大约572个字)

PowerShell 技能连载 - 系统优化技巧

在 PowerShell 中优化系统性能是一项重要任务，本文将介绍一些实用的系统优化技巧。

首先，让我们看看基本的系统优化操作：

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# 创建系统性能分析函数
function Get-SystemPerformance {
    param(
        [int]$Duration = 3600,
        [int]$Interval = 60
    )
    
    try {
        $metrics = @()
        $endTime = Get-Date
        $startTime = $endTime.AddSeconds(-$Duration)
        
        while ($startTime -lt $endTime) {
            $cpu = Get-Counter '\Processor(_Total)\% Processor Time'
            $memory = Get-Counter '\Memory\Available MBytes'
            $disk = Get-Counter '\PhysicalDisk(_Total)\% Disk Time'
            
            $metrics += [PSCustomObject]@{
                Time = Get-Date
                CPUUsage = $cpu.CounterSamples.CookedValue
                AvailableMemory = $memory.CounterSamples.CookedValue
                DiskUsage = $disk.CounterSamples.CookedValue
            }
            
            $startTime = $startTime.AddSeconds($Interval)
            Start-Sleep -Seconds $Interval
        }
        
        return [PSCustomObject]@{
            Duration = $Duration
            Interval = $Interval
            Metrics = $metrics
        }
    }
    catch {
        Write-Host "系统性能分析失败：$_"
    }
}

系统服务优化：

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# 创建系统服务优化函数
function Optimize-SystemServices {
    param(
        [string[]]$Services,
        [ValidateSet('Startup', 'Manual', 'Disabled')]
        [string]$StartupType
    )
    
    try {
        foreach ($service in $Services) {
            $svc = Get-Service -Name $service
            if ($svc) {
                Set-Service -Name $service -StartupType $StartupType
                Write-Host "服务 $service 已设置为 $StartupType"
            }
        }
        
        return [PSCustomObject]@{
            Services = $Services
            StartupType = $StartupType
            Status = "完成"
        }
    }
    catch {
        Write-Host "系统服务优化失败：$_"
    }
}

系统注册表优化：

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# 创建系统注册表优化函数
function Optimize-SystemRegistry {
    param(
        [string]$RegistryPath,
        [hashtable]$Settings
    )
    
    try {
        if (-not (Test-Path $RegistryPath)) {
            New-Item -Path $RegistryPath -Force
        }
        
        foreach ($key in $Settings.Keys) {
            $value = $Settings[$key]
            Set-ItemProperty -Path $RegistryPath -Name $key -Value $value
            Write-Host "注册表项 $key 已设置为 $value"
        }
        
        return [PSCustomObject]@{
            RegistryPath = $RegistryPath
            Settings = $Settings
            Status = "完成"
        }
    }
    catch {
        Write-Host "系统注册表优化失败：$_"
    }
}

系统磁盘优化：

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# 创建系统磁盘优化函数
function Optimize-SystemDisk {
    param(
        [string]$DriveLetter,
        [switch]$Defrag,
        [switch]$Cleanup
    )
    
    try {
        $results = @()
        
        if ($Defrag) {
            $defragResult = Optimize-Volume -DriveLetter $DriveLetter -Defrag -Verbose
            $results += [PSCustomObject]@{
                Operation = "Defrag"
                Status = $defragResult.Status
                SpaceSaved = $defragResult.SpaceSaved
            }
        }
        
        if ($Cleanup) {
            $cleanupResult = Clear-RecycleBin -DriveLetter $DriveLetter -Force
            $results += [PSCustomObject]@{
                Operation = "Cleanup"
                Status = "完成"
                ItemsRemoved = $cleanupResult.Count
            }
        }
        
        return [PSCustomObject]@{
            DriveLetter = $DriveLetter
            Operations = $results
        }
    }
    catch {
        Write-Host "系统磁盘优化失败：$_"
    }
}

系统网络优化：

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# 创建系统网络优化函数
function Optimize-SystemNetwork {
    param(
        [string]$AdapterName,
        [hashtable]$Settings
    )
    
    try {
        $adapter = Get-NetAdapter -Name $AdapterName
        if ($adapter) {
            foreach ($key in $Settings.Keys) {
                $value = $Settings[$key]
                Set-NetAdapterAdvancedProperty -Name $AdapterName -RegistryKeyword $key -RegistryValue $value
                Write-Host "网络适配器 $AdapterName 的 $key 已设置为 $value"
            }
            
            return [PSCustomObject]@{
                AdapterName = $AdapterName
                Settings = $Settings
                Status = "完成"
            }
        }
        else {
            Write-Host "未找到网络适配器：$AdapterName"
        }
    }
    catch {
        Write-Host "系统网络优化失败：$_"
    }
}

这些技巧将帮助您更有效地优化系统性能。记住，在优化系统时，始终要注意安全性和稳定性。同时，建议使用适当的错误处理和日志记录机制来跟踪所有操作。

发表更新powershell / tip15 分钟读完 (大约2188个字)

PowerShell 技能连载 - 基础设施即代码实践

在现代IT运维领域，基础设施即代码(Infrastructure as Code, IaC)已成为标准实践。本文将介绍如何使用PowerShell实现高效的IaC解决方案。

首先，让我们创建一个基础环境配置定义函数：

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# 创建环境配置定义函数
function New-InfrastructureDefinition {
    param(
        [Parameter(Mandatory)]
        [string]$EnvironmentName,
        
        [Parameter(Mandatory)]
        [string]$OutputPath,
        
        [string]$Description = "",
        
        [ValidateSet("Development", "Testing", "Staging", "Production")]
        [string]$EnvironmentType = "Development",
        
        [switch]$Force
    )
    
    try {
        # 创建基础环境配置对象
        $infrastructureDefinition = [PSCustomObject]@{
            EnvironmentName = $EnvironmentName
            EnvironmentType = $EnvironmentType
            Description = $Description
            CreatedBy = $env:USERNAME
            CreatedOn = Get-Date
            Version = "1.0"
            Resources = @{
                VirtualMachines = @()
                NetworkResources = @()
                StorageResources = @()
                SecurityResources = @()
                DatabaseResources = @()
                ApplicationResources = @()
            }
            Dependencies = @{}
            DeploymentOrder = @()
            State = "Draft"
            Metadata = @{}
        }
        
        # 创建JSON定义文件
        $definitionFile = Join-Path -Path $OutputPath -ChildPath "$EnvironmentName.json"
        
        if ((Test-Path -Path $definitionFile) -and (-not $Force)) {
            throw "定义文件 '$definitionFile' 已存在。使用 -Force 参数覆盖现有文件。"
        }
        
        # 创建输出目录（如果不存在）
        if (-not (Test-Path -Path $OutputPath)) {
            New-Item -Path $OutputPath -ItemType Directory -Force | Out-Null
        }
        
        # 保存定义
        $infrastructureDefinition | ConvertTo-Json -Depth 10 | Out-File -FilePath $definitionFile -Encoding UTF8
        
        Write-Host "已创建基础设施定义: $definitionFile" -ForegroundColor Green
        return $infrastructureDefinition
    }
    catch {
        Write-Error "创建基础设施定义时出错: $_"
    }
}

接下来，添加虚拟机资源定义：

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# 添加虚拟机资源定义
function Add-VMResource {
    param(
        [Parameter(Mandatory, ValueFromPipeline)]
        [PSObject]$InfrastructureDefinition,
        
        [Parameter(Mandatory)]
        [string]$VMName,
        
        [Parameter(Mandatory)]
        [string]$Size,
        
        [string]$OSType = "Windows",
        
        [string]$OSVersion = "2022-Datacenter",
        
        [string]$NetworkName,
        
        [string]$SubnetName,
        
        [hashtable]$Tags = @{},
        
        [string[]]$DependsOn = @(),
        
        [hashtable]$Properties = @{},
        
        [string]$OutputPath
    )
    
    process {
        try {
            # 创建VM定义
            $vmResource = [PSCustomObject]@{
                Name = $VMName
                ResourceType = "VirtualMachine"
                Size = $Size
                OSType = $OSType
                OSVersion = $OSVersion
                NetworkName = $NetworkName
                SubnetName = $SubnetName
                Tags = $Tags
                Properties = $Properties
                DependsOn = $DependsOn
                ResourceId = [guid]::NewGuid().ToString()
                CreatedOn = Get-Date
            }
            
            # 添加到定义中
            $InfrastructureDefinition.Resources.VirtualMachines += $vmResource
            
            # 添加依赖关系
            foreach ($dependency in $DependsOn) {
                if (-not $InfrastructureDefinition.Dependencies.ContainsKey($VMName)) {
                    $InfrastructureDefinition.Dependencies[$VMName] = @()
                }
                $InfrastructureDefinition.Dependencies[$VMName] += $dependency
            }
            
            # 如果提供了输出路径，更新定义文件
            if ($OutputPath) {
                $definitionFile = Join-Path -Path $OutputPath -ChildPath "$($InfrastructureDefinition.EnvironmentName).json"
                $InfrastructureDefinition | ConvertTo-Json -Depth 10 | Out-File -FilePath $definitionFile -Encoding UTF8
                Write-Host "已更新基础设施定义: $definitionFile" -ForegroundColor Green
            }
            
            return $InfrastructureDefinition
        }
        catch {
            Write-Error "添加虚拟机资源定义时出错: $_"
        }
    }
}

添加网络资源定义：

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# 添加网络资源定义
function Add-NetworkResource {
    param(
        [Parameter(Mandatory, ValueFromPipeline)]
        [PSObject]$InfrastructureDefinition,
        
        [Parameter(Mandatory)]
        [string]$NetworkName,
        
        [Parameter(Mandatory)]
        [string]$AddressSpace,
        
        [Parameter(Mandatory)]
        [PSObject[]]$Subnets,
        
        [bool]$EnableDnsSupport = $true,
        
        [hashtable]$Tags = @{},
        
        [string[]]$DependsOn = @(),
        
        [hashtable]$Properties = @{},
        
        [string]$OutputPath
    )
    
    process {
        try {
            # 创建网络定义
            $networkResource = [PSCustomObject]@{
                Name = $NetworkName
                ResourceType = "VirtualNetwork"
                AddressSpace = $AddressSpace
                Subnets = $Subnets
                EnableDnsSupport = $EnableDnsSupport
                Tags = $Tags
                Properties = $Properties
                DependsOn = $DependsOn
                ResourceId = [guid]::NewGuid().ToString()
                CreatedOn = Get-Date
            }
            
            # 添加到定义中
            $InfrastructureDefinition.Resources.NetworkResources += $networkResource
            
            # 添加依赖关系
            foreach ($dependency in $DependsOn) {
                if (-not $InfrastructureDefinition.Dependencies.ContainsKey($NetworkName)) {
                    $InfrastructureDefinition.Dependencies[$NetworkName] = @()
                }
                $InfrastructureDefinition.Dependencies[$NetworkName] += $dependency
            }
            
            # 如果提供了输出路径，更新定义文件
            if ($OutputPath) {
                $definitionFile = Join-Path -Path $OutputPath -ChildPath "$($InfrastructureDefinition.EnvironmentName).json"
                $InfrastructureDefinition | ConvertTo-Json -Depth 10 | Out-File -FilePath $definitionFile -Encoding UTF8
                Write-Host "已更新基础设施定义: $definitionFile" -ForegroundColor Green
            }
            
            return $InfrastructureDefinition
        }
        catch {
            Write-Error "添加网络资源定义时出错: $_"
        }
    }
}

生成部署顺序：

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# 生成资源部署顺序
function Set-DeploymentOrder {
    param(
        [Parameter(Mandatory, ValueFromPipeline)]
        [PSObject]$InfrastructureDefinition,
        
        [switch]$Validate,
        
        [string]$OutputPath
    )
    
    process {
        try {
            # 创建依赖图
            $dependencyGraph = @{}
            $resourceList = @()
            
            # 收集所有资源
            foreach ($vmResource in $InfrastructureDefinition.Resources.VirtualMachines) {
                $resourceList += $vmResource.Name
                $dependencyGraph[$vmResource.Name] = $vmResource.DependsOn
            }
            
            foreach ($netResource in $InfrastructureDefinition.Resources.NetworkResources) {
                $resourceList += $netResource.Name
                $dependencyGraph[$netResource.Name] = $netResource.DependsOn
            }
            
            # 添加其他资源类型...
            
            # 检测循环依赖
            $visited = @{}
            $recStack = @{}
            
            function Test-CyclicDependency {
                param([string]$Node)
                
                $visited[$Node] = $true
                $recStack[$Node] = $true
                
                foreach ($neighbor in $dependencyGraph[$Node]) {
                    if (-not $visited.ContainsKey($neighbor)) {
                        if (Test-CyclicDependency -Node $neighbor) {
                            return $true
                        }
                    }
                    elseif ($recStack.ContainsKey($neighbor)) {
                        return $true
                    }
                }
                
                $recStack.Remove($Node)
                return $false
            }
            
            foreach ($resource in $resourceList) {
                if (-not $visited.ContainsKey($resource)) {
                    if (Test-CyclicDependency -Node $resource) {
                        throw "检测到循环依赖关系。无法确定部署顺序。"
                    }
                }
            }
            
            # 拓扑排序
            $visited = @{}
            $deploymentOrder = [System.Collections.ArrayList]::new()
            
            function Sort-Topology {
                param([string]$Node)
                
                $visited[$Node] = $true
                
                foreach ($neighbor in $dependencyGraph[$Node]) {
                    if (-not $visited.ContainsKey($neighbor)) {
                        Sort-Topology -Node $neighbor
                    }
                }
                
                $deploymentOrder.Add($Node) | Out-Null
            }
            
            foreach ($resource in $resourceList) {
                if (-not $visited.ContainsKey($resource)) {
                    Sort-Topology -Node $resource
                }
            }
            
            # 反转列表，因为我们需要先部署没有依赖的资源
            [Array]::Reverse($deploymentOrder)
            
            # 更新部署顺序
            $InfrastructureDefinition.DeploymentOrder = $deploymentOrder
            
            # 验证部署顺序
            if ($Validate) {
                Write-Host "验证部署顺序..." -ForegroundColor Yellow
                $deploymentSet = @{}
                $isValid = $true
                
                foreach ($resource in $deploymentOrder) {
                    foreach ($dependency in $dependencyGraph[$resource]) {
                        if (-not $deploymentSet.ContainsKey($dependency)) {
                            Write-Host "错误: 资源 '$resource' 依赖于 '$dependency'，但该资源尚未部署。" -ForegroundColor Red
                            $isValid = $false
                        }
                    }
                    $deploymentSet[$resource] = $true
                }
                
                if ($isValid) {
                    Write-Host "部署顺序有效。" -ForegroundColor Green
                } else {
                    throw "部署顺序无效。请检查资源依赖关系。"
                }
            }
            
            # 如果提供了输出路径，更新定义文件
            if ($OutputPath) {
                $definitionFile = Join-Path -Path $OutputPath -ChildPath "$($InfrastructureDefinition.EnvironmentName).json"
                $InfrastructureDefinition | ConvertTo-Json -Depth 10 | Out-File -FilePath $definitionFile -Encoding UTF8
                Write-Host "已更新基础设施定义: $definitionFile" -ForegroundColor Green
            }
            
            return $InfrastructureDefinition
        }
        catch {
            Write-Error "生成部署顺序时出错: $_"
        }
    }
}

部署基础设施资源：

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# 部署基础设施资源
function Deploy-InfrastructureResource {
    param(
        [Parameter(Mandatory)]
        [PSObject]$Resource,
        
        [Parameter(Mandatory)]
        [PSObject]$InfrastructureDefinition,
        
        [switch]$WhatIf,
        
        [PSObject]$DeploymentContext = @{}
    )
    
    try {
        $resourceName = $Resource.Name
        $resourceType = $Resource.ResourceType
        
        Write-Host "开始部署资源: $resourceName (类型: $resourceType)" -ForegroundColor Cyan
        
        switch ($resourceType) {
            "VirtualMachine" {
                if ($WhatIf) {
                    Write-Host "[WhatIf] 将创建虚拟机 '$resourceName' (大小: $($Resource.Size), OS: $($Resource.OSType)-$($Resource.OSVersion))" -ForegroundColor Yellow
                } else {
                    # 这里是虚拟机部署的实际代码
                    # 示例: 使用 Azure PowerShell 模块创建虚拟机
                    Write-Host "正在创建虚拟机 '$resourceName'..." -ForegroundColor White
                    
                    # 模拟部署
                    Start-Sleep -Seconds 2
                    
                    # 返回部署结果
                    $deploymentResult = [PSCustomObject]@{
                        ResourceName = $resourceName
                        ResourceType = $resourceType
                        Status = "Success"
                        DeploymentId = [guid]::NewGuid().ToString()
                        DeploymentTime = Get-Date
                        Properties = @{
                            IPAddress = "10.0.0.$((Get-Random -Minimum 2 -Maximum 255))"
                            FQDN = "$resourceName.example.com"
                        }
                    }
                    
                    Write-Host "虚拟机 '$resourceName' 部署成功" -ForegroundColor Green
                    return $deploymentResult
                }
            }
            "VirtualNetwork" {
                if ($WhatIf) {
                    Write-Host "[WhatIf] 将创建虚拟网络 '$resourceName' (地址空间: $($Resource.AddressSpace))" -ForegroundColor Yellow
                } else {
                    # 这里是虚拟网络部署的实际代码
                    Write-Host "正在创建虚拟网络 '$resourceName'..." -ForegroundColor White
                    
                    # 模拟部署
                    Start-Sleep -Seconds 1
                    
                    # 返回部署结果
                    $deploymentResult = [PSCustomObject]@{
                        ResourceName = $resourceName
                        ResourceType = $resourceType
                        Status = "Success"
                        DeploymentId = [guid]::NewGuid().ToString()
                        DeploymentTime = Get-Date
                        Properties = @{
                            AddressSpace = $Resource.AddressSpace
                            SubnetCount = $Resource.Subnets.Count
                        }
                    }
                    
                    Write-Host "虚拟网络 '$resourceName' 部署成功" -ForegroundColor Green
                    return $deploymentResult
                }
            }
            default {
                Write-Warning "不支持的资源类型: $resourceType"
            }
        }
        
        if ($WhatIf) {
            return [PSCustomObject]@{
                ResourceName = $resourceName
                ResourceType = $resourceType
                Status = "WhatIf"
            }
        }
    }
    catch {
        Write-Error "部署资源 '$resourceName' 时出错: $_"
        return [PSCustomObject]@{
            ResourceName = $resourceName
            ResourceType = $resourceType
            Status = "Failed"
            Error = $_.ToString()
        }
    }
}

执行完整基础设施部署：

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# 部署完整基础设施
function Deploy-Infrastructure {
    param(
        [Parameter(Mandatory)]
        [PSObject]$InfrastructureDefinition,
        
        [switch]$WhatIf,
        
        [switch]$Force,
        
        [string]$DeploymentLogPath,
        
        [scriptblock]$OnSuccessAction,
        
        [scriptblock]$OnFailureAction
    )
    
    try {
        $environmentName = $InfrastructureDefinition.EnvironmentName
        $deploymentResults = @()
        $deploymentContext = @{}
        $deploymentStart = Get-Date
        $deploymentSuccess = $true
        
        Write-Host "开始部署环境: $environmentName" -ForegroundColor Cyan
        
        # 检查是否有部署顺序
        if ($InfrastructureDefinition.DeploymentOrder.Count -eq 0) {
            Write-Warning "部署顺序为空。正在尝试生成部署顺序..."
            $InfrastructureDefinition = Set-DeploymentOrder -InfrastructureDefinition $InfrastructureDefinition -Validate
        }
        
        # 创建资源映射
        $resourceMap = @{}
        foreach ($vmResource in $InfrastructureDefinition.Resources.VirtualMachines) {
            $resourceMap[$vmResource.Name] = $vmResource
        }
        
        foreach ($netResource in $InfrastructureDefinition.Resources.NetworkResources) {
            $resourceMap[$netResource.Name] = $netResource
        }
        
        # 按照部署顺序部署资源
        foreach ($resourceName in $InfrastructureDefinition.DeploymentOrder) {
            $resource = $resourceMap[$resourceName]
            
            if (-not $resource) {
                Write-Warning "资源 '$resourceName' 在部署顺序中但未找到资源定义。跳过。"
                continue
            }
            
            $result = Deploy-InfrastructureResource -Resource $resource -InfrastructureDefinition $InfrastructureDefinition -WhatIf:$WhatIf -DeploymentContext $deploymentContext
            $deploymentResults += $result
            
            # 如果部署失败且未强制继续，则终止部署
            if ($result.Status -eq "Failed" -and -not $Force) {
                Write-Error "资源 '$resourceName' 部署失败。终止部署。"
                $deploymentSuccess = $false
                break
            }
            
            # 更新部署上下文
            if ($result.Status -eq "Success") {
                $deploymentContext[$resourceName] = $result
            }
        }
        
        $deploymentEnd = Get-Date
        $deploymentDuration = $deploymentEnd - $deploymentStart
        
        # 生成部署摘要
        $deploymentSummary = [PSCustomObject]@{
            EnvironmentName = $environmentName
            StartTime = $deploymentStart
            EndTime = $deploymentEnd
            Duration = $deploymentDuration
            Status = if ($deploymentSuccess) { "Success" } else { "Failed" }
            ResourceCount = $deploymentResults.Count
            SuccessCount = ($deploymentResults | Where-Object { $_.Status -eq "Success" }).Count
            FailedCount = ($deploymentResults | Where-Object { $_.Status -eq "Failed" }).Count
            WhatIfCount = ($deploymentResults | Where-Object { $_.Status -eq "WhatIf" }).Count
            DetailedResults = $deploymentResults
        }
        
        # 保存部署日志
        if ($DeploymentLogPath) {
            $logFile = Join-Path -Path $DeploymentLogPath -ChildPath "Deployment_$environmentName`_$(Get-Date -Format 'yyyyMMdd_HHmmss').json"
            
            # 创建目录（如果不存在）
            if (-not (Test-Path -Path $DeploymentLogPath)) {
                New-Item -Path $DeploymentLogPath -ItemType Directory -Force | Out-Null
            }
            
            $deploymentSummary | ConvertTo-Json -Depth 10 | Out-File -FilePath $logFile -Encoding UTF8
            Write-Host "部署日志已保存至: $logFile" -ForegroundColor Green
        }
        
        # 部署成功或失败时执行的操作
        if ($deploymentSuccess -and $OnSuccessAction) {
            & $OnSuccessAction -DeploymentSummary $deploymentSummary
        }
        elseif (-not $deploymentSuccess -and $OnFailureAction) {
            & $OnFailureAction -DeploymentSummary $deploymentSummary
        }
        
        # 输出部署摘要
        Write-Host "部署摘要:" -ForegroundColor Cyan
        Write-Host "  环境: $environmentName" -ForegroundColor White
        Write-Host "  状态: $($deploymentSummary.Status)" -ForegroundColor $(if ($deploymentSummary.Status -eq "Success") { "Green" } else { "Red" })
        Write-Host "  持续时间: $($deploymentDuration.TotalMinutes) 分钟" -ForegroundColor White
        Write-Host "  资源总数: $($deploymentSummary.ResourceCount)" -ForegroundColor White
        Write-Host "  成功: $($deploymentSummary.SuccessCount)" -ForegroundColor Green
        Write-Host "  失败: $($deploymentSummary.FailedCount)" -ForegroundColor $(if ($deploymentSummary.FailedCount -gt 0) { "Red" } else { "White" })
        Write-Host "  WhatIf: $($deploymentSummary.WhatIfCount)" -ForegroundColor Yellow
        
        return $deploymentSummary
    }
    catch {
        Write-Error "部署环境 '$environmentName' 时出错: $_"
    }
}

现在，让我们看一个使用示例：

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# 定义输出路径
$outputPath = "C:\IaC\Definitions"

# 创建一个新的环境定义
$envDef = New-InfrastructureDefinition -EnvironmentName "DevTest" -EnvironmentType "Development" -OutputPath $outputPath -Description "开发测试环境"

# 添加网络资源
$subnets = @(
    [PSCustomObject]@{ Name = "Frontend"; AddressPrefix = "10.0.1.0/24" },
    [PSCustomObject]@{ Name = "Backend"; AddressPrefix = "10.0.2.0/24" },
    [PSCustomObject]@{ Name = "Database"; AddressPrefix = "10.0.3.0/24" }
)

$envDef = Add-NetworkResource -InfrastructureDefinition $envDef -NetworkName "DevVNet" -AddressSpace "10.0.0.0/16" -Subnets $subnets -OutputPath $outputPath

# 添加虚拟机资源
$envDef = Add-VMResource -InfrastructureDefinition $envDef -VMName "WebServer01" -Size "Standard_B2s" -OSType "Windows" -OSVersion "2022-Datacenter" -NetworkName "DevVNet" -SubnetName "Frontend" -DependsOn @("DevVNet") -OutputPath $outputPath

$envDef = Add-VMResource -InfrastructureDefinition $envDef -VMName "AppServer01" -Size "Standard_B2s" -OSType "Windows" -OSVersion "2022-Datacenter" -NetworkName "DevVNet" -SubnetName "Backend" -DependsOn @("DevVNet", "WebServer01") -OutputPath $outputPath

$envDef = Add-VMResource -InfrastructureDefinition $envDef -VMName "DbServer01" -Size "Standard_B2ms" -OSType "Windows" -OSVersion "2022-Datacenter" -NetworkName "DevVNet" -SubnetName "Database" -DependsOn @("DevVNet") -OutputPath $outputPath

# 生成部署顺序
$envDef = Set-DeploymentOrder -InfrastructureDefinition $envDef -Validate -OutputPath $outputPath

# 预览部署（WhatIf）
$deploymentPreview = Deploy-Infrastructure -InfrastructureDefinition $envDef -WhatIf -DeploymentLogPath "C:\IaC\Logs"

# 实际部署
$deploymentResult = Deploy-Infrastructure -InfrastructureDefinition $envDef -DeploymentLogPath "C:\IaC\Logs"

这些PowerShell函数提供了一个强大的基础设施即代码解决方案，可以帮助自动化环境部署流程。随着基础设施复杂性的增加，您可以扩展这些函数来支持更多的资源类型和部署场景。结合版本控制系统如Git，这种方法能够确保环境配置的一致性和可重复性，从而提高IT运维的效率和可靠性。

发表更新powershell / tip2 分钟读完 (大约322个字)

PowerShell 技能连载 - 云原生配置管理

在云原生环境中，自动化资源配置管理至关重要。以下脚本实现Kubernetes部署模板生成与应用：

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function New-K8sDeployment {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory=$true)]
        [string]$AppName,
        
        [ValidateRange(1,10)]
        [int]$Replicas = 3,
        
        [ValidateSet('development','production')]
        [string]$Environment = 'production'
    )

    $yaml = @"
apiVersion: apps/v1
kind: Deployment
metadata:
  name: $AppName-$Environment
spec:
  replicas: $Replicas
  selector:
    matchLabels:
      app: $AppName
  template:
    metadata:
      labels:
        app: $AppName
        env: $Environment
    spec:
      containers:
      - name: $AppName
        image: registry/vichamp/$AppName:latest
        resources:
          limits:
            memory: "512Mi"
            cpu: "500m"
"@

    try {
        $tempFile = New-TemporaryFile
        $yaml | Out-File $tempFile.FullName
        
        kubectl apply -f $tempFile.FullName
        
        [PSCustomObject]@{
            AppName = $AppName
            Environment = $Environment
            Manifest = $yaml
            Status = 'Applied'
        }
    }
    catch {
        Write-Error "Kubernetes部署失败: $_"
    }
    finally {
        Remove-Item $tempFile.FullName -ErrorAction SilentlyContinue
    }
}

实现原理：

  1. 使用here-string动态生成标准YAML部署模板
  2. 通过环境参数控制副本数量和部署环境
  3. 自动创建临时文件执行kubectl apply命令
  4. 返回包含应用状态的定制对象
  5. 完善的错误处理与临时文件清理机制

使用示例：

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New-K8sDeployment -AppName 'order-service' -Environment 'production' -Replicas 5

最佳实践：

  1. 与CI/CD流水线集成实现自动部署
  2. 添加资源请求/限制验证逻辑
  3. 实现部署历史版本回滚功能
  4. 集成Prometheus监控指标

注意事项：
• 需要配置kubectl访问权限
• 建议添加YAML语法验证
• 生产环境需设置严格的资源限制

发表更新powershell / tip4 分钟读完 (大约599个字)

PowerShell 技能连载 - Excel 处理技巧

在 PowerShell 中处理 Excel 文件是一项常见任务，本文将介绍一些实用的 Excel 处理技巧。

首先，让我们看看基本的 Excel 操作：

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# 创建 Excel 信息获取函数
function Get-ExcelInfo {
    param(
        [string]$ExcelPath
    )
    
    try {
        $excel = New-Object -ComObject Excel.Application
        $excel.Visible = $false
        $workbook = $excel.Workbooks.Open($ExcelPath)
        
        $info = [PSCustomObject]@{
            FileName = Split-Path $ExcelPath -Leaf
            SheetCount = $workbook.Sheets.Count
            SheetNames = $workbook.Sheets | ForEach-Object { $_.Name }
            UsedRange = $workbook.Sheets(1).UsedRange.Address
        }
        
        $workbook.Close($false)
        $excel.Quit()
        [System.Runtime.Interopservices.Marshal]::ReleaseComObject($excel)
        
        return $info
    }
    catch {
        Write-Host "获取 Excel 信息失败：$_"
    }
}

Excel 数据导出：

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# 创建 Excel 数据导出函数
function Export-ExcelData {
    param(
        [string]$InputPath,
        [string]$OutputPath,
        [string]$SheetName,
        [int]$StartRow = 1,
        [int]$EndRow
    )
    
    try {
        $excel = New-Object -ComObject Excel.Application
        $excel.Visible = $false
        $workbook = $excel.Workbooks.Open($InputPath)
        $sheet = $workbook.Sheets($SheetName)
        
        if (-not $EndRow) {
            $EndRow = $sheet.UsedRange.Rows.Count
        }
        
        $data = @()
        for ($row = $StartRow; $row -le $EndRow; $row++) {
            $rowData = @()
            for ($col = 1; $col -le $sheet.UsedRange.Columns.Count; $col++) {
                $rowData += $sheet.Cells($row, $col).Text
            }
            $data += $rowData -join ","
        }
        
        $data | Out-File $OutputPath -Encoding UTF8
        
        $workbook.Close($false)
        $excel.Quit()
        [System.Runtime.Interopservices.Marshal]::ReleaseComObject($excel)
        
        Write-Host "数据导出完成：$OutputPath"
    }
    catch {
        Write-Host "导出失败：$_"
    }
}

Excel 数据导入：

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# 创建 Excel 数据导入函数
function Import-ExcelData {
    param(
        [string]$InputPath,
        [string]$OutputPath,
        [string]$SheetName = "Sheet1",
        [string[]]$Headers
    )
    
    try {
        $excel = New-Object -ComObject Excel.Application
        $excel.Visible = $false
        $workbook = $excel.Workbooks.Add()
        $sheet = $workbook.Sheets(1)
        $sheet.Name = $SheetName
        
        # 写入表头
        for ($i = 0; $i -lt $Headers.Count; $i++) {
            $sheet.Cells(1, $i + 1) = $Headers[$i]
        }
        
        # 写入数据
        $row = 2
        Get-Content $InputPath | ForEach-Object {
            $values = $_ -split ","
            for ($col = 0; $col -lt $values.Count; $col++) {
                $sheet.Cells($row, $col + 1) = $values[$col]
            }
            $row++
        }
        
        # 调整列宽
        $sheet.UsedRange.EntireColumn.AutoFit()
        
        $workbook.SaveAs($OutputPath)
        $workbook.Close($true)
        $excel.Quit()
        [System.Runtime.Interopservices.Marshal]::ReleaseComObject($excel)
        
        Write-Host "数据导入完成：$OutputPath"
    }
    catch {
        Write-Host "导入失败：$_"
    }
}

Excel 数据合并：

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# 创建 Excel 数据合并函数
function Merge-ExcelData {
    param(
        [string[]]$InputFiles,
        [string]$OutputPath,
        [string]$SheetName = "Sheet1"
    )
    
    try {
        $excel = New-Object -ComObject Excel.Application
        $excel.Visible = $false
        $workbook = $excel.Workbooks.Add()
        $sheet = $workbook.Sheets(1)
        $sheet.Name = $SheetName
        
        $currentRow = 1
        $headersWritten = $false
        
        foreach ($file in $InputFiles) {
            $sourceWorkbook = $excel.Workbooks.Open($file)
            $sourceSheet = $sourceWorkbook.Sheets(1)
            
            if (-not $headersWritten) {
                # 复制表头
                $sourceSheet.Range($sourceSheet.UsedRange.Rows(1).Address).Copy($sheet.Cells($currentRow, 1))
                $headersWritten = $true
                $currentRow++
            }
            
            # 复制数据
            $lastRow = $sourceSheet.UsedRange.Rows.Count
            if ($lastRow -gt 1) {
                $sourceSheet.Range($sourceSheet.UsedRange.Rows(2).Address + ":" + $sourceSheet.UsedRange.Rows($lastRow).Address).Copy($sheet.Cells($currentRow, 1))
                $currentRow += $lastRow - 1
            }
            
            $sourceWorkbook.Close($false)
        }
        
        # 调整列宽
        $sheet.UsedRange.EntireColumn.AutoFit()
        
        $workbook.SaveAs($OutputPath)
        $workbook.Close($true)
        $excel.Quit()
        [System.Runtime.Interopservices.Marshal]::ReleaseComObject($excel)
        
        Write-Host "数据合并完成：$OutputPath"
    }
    catch {
        Write-Host "合并失败：$_"
    }
}

这些技巧将帮助您更有效地处理 Excel 文件。记住，在处理 Excel 时，始终要注意内存管理和资源释放。同时，建议在处理大型 Excel 文件时使用流式处理方式，以提高性能。

发表更新powershell / tip7 分钟读完 (大约990个字)

PowerShell 技能连载 - 资产管理

在系统管理中，资产管理对于确保资源的有效利用和成本控制至关重要。本文将介绍如何使用PowerShell构建一个资产管理系统，包括资产发现、跟踪和优化等功能。

资产发现

首先，让我们创建一个用于管理资产发现的函数：

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function Discover-SystemAssets {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        [string]$DiscoveryID,
        
        [Parameter()]
        [string[]]$AssetTypes,
        
        [Parameter()]
        [ValidateSet("Full", "Quick", "Custom")]
        [string]$DiscoveryMode = "Full",
        
        [Parameter()]
        [hashtable]$DiscoveryConfig,
        
        [Parameter()]
        [string]$LogPath
    )
    
    try {
        $discoverer = [PSCustomObject]@{
            DiscoveryID = $DiscoveryID
            StartTime = Get-Date
            DiscoveryStatus = @{}
            Assets = @{}
            Issues = @()
        }
        
        # 获取发现配置
        $config = Get-DiscoveryConfig -DiscoveryID $DiscoveryID
        
        # 管理发现
        foreach ($type in $AssetTypes) {
            $status = [PSCustomObject]@{
                Type = $type
                Status = "Unknown"
                Config = @{}
                Assets = @{}
                Issues = @()
            }
            
            # 应用发现配置
            $typeConfig = Apply-DiscoveryConfig `
                -Config $config `
                -Type $type `
                -Mode $DiscoveryMode `
                -Settings $DiscoveryConfig
            
            $status.Config = $typeConfig
            
            # 发现系统资产
            $assets = Discover-AssetInventory `
                -Type $type `
                -Config $typeConfig
            
            $status.Assets = $assets
            $discoverer.Assets[$type] = $assets
            
            # 检查资产问题
            $issues = Check-AssetIssues `
                -Assets $assets `
                -Config $typeConfig
            
            $status.Issues = $issues
            $discoverer.Issues += $issues
            
            # 更新发现状态
            if ($issues.Count -gt 0) {
                $status.Status = "Warning"
            }
            else {
                $status.Status = "Success"
            }
            
            $discoverer.DiscoveryStatus[$type] = $status
        }
        
        # 记录发现日志
        if ($LogPath) {
            $discoverer | ConvertTo-Json -Depth 10 | Out-File -FilePath $LogPath
        }
        
        # 更新发现器状态
        $discoverer.EndTime = Get-Date
        
        return $discoverer
    }
    catch {
        Write-Error "资产发现失败：$_"
        return $null
    }
}

资产跟踪

接下来，创建一个用于管理资产跟踪的函数：

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function Track-SystemAssets {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        [string]$TrackingID,
        
        [Parameter()]
        [string[]]$TrackingTypes,
        
        [Parameter()]
        [ValidateSet("Usage", "Cost", "Lifecycle")]
        [string]$TrackingMode = "Usage",
        
        [Parameter()]
        [hashtable]$TrackingConfig,
        
        [Parameter()]
        [string]$ReportPath
    )
    
    try {
        $tracker = [PSCustomObject]@{
            TrackingID = $TrackingID
            StartTime = Get-Date
            TrackingStatus = @{}
            Tracking = @{}
            Metrics = @()
        }
        
        # 获取跟踪配置
        $config = Get-TrackingConfig -TrackingID $TrackingID
        
        # 管理跟踪
        foreach ($type in $TrackingTypes) {
            $status = [PSCustomObject]@{
                Type = $type
                Status = "Unknown"
                Config = @{}
                Tracking = @{}
                Metrics = @()
            }
            
            # 应用跟踪配置
            $typeConfig = Apply-TrackingConfig `
                -Config $config `
                -Type $type `
                -Mode $TrackingMode `
                -Settings $TrackingConfig
            
            $status.Config = $typeConfig
            
            # 跟踪系统资产
            $tracking = Track-AssetMetrics `
                -Type $type `
                -Config $typeConfig
            
            $status.Tracking = $tracking
            $tracker.Tracking[$type] = $tracking
            
            # 生成跟踪指标
            $metrics = Generate-TrackingMetrics `
                -Tracking $tracking `
                -Config $typeConfig
            
            $status.Metrics = $metrics
            $tracker.Metrics += $metrics
            
            # 更新跟踪状态
            if ($metrics.Count -gt 0) {
                $status.Status = "Active"
            }
            else {
                $status.Status = "Inactive"
            }
            
            $tracker.TrackingStatus[$type] = $status
        }
        
        # 生成报告
        if ($ReportPath) {
            $report = Generate-TrackingReport `
                -Tracker $tracker `
                -Config $config
            
            $report | ConvertTo-Json -Depth 10 | Out-File -FilePath $ReportPath
        }
        
        # 更新跟踪器状态
        $tracker.EndTime = Get-Date
        
        return $tracker
    }
    catch {
        Write-Error "资产跟踪失败：$_"
        return $null
    }
}

资产优化

最后，创建一个用于管理资产优化的函数：

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function Optimize-SystemAssets {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        [string]$OptimizationID,
        
        [Parameter()]
        [string[]]$OptimizationTypes,
        
        [Parameter()]
        [ValidateSet("Cost", "Performance", "Utilization")]
        [string]$OptimizationMode = "Cost",
        
        [Parameter()]
        [hashtable]$OptimizationConfig,
        
        [Parameter()]
        [string]$ReportPath
    )
    
    try {
        $optimizer = [PSCustomObject]@{
            OptimizationID = $OptimizationID
            StartTime = Get-Date
            OptimizationStatus = @{}
            Optimizations = @{}
            Actions = @()
        }
        
        # 获取优化配置
        $config = Get-OptimizationConfig -OptimizationID $OptimizationID
        
        # 管理优化
        foreach ($type in $OptimizationTypes) {
            $status = [PSCustomObject]@{
                Type = $type
                Status = "Unknown"
                Config = @{}
                Optimizations = @{}
                Actions = @()
            }
            
            # 应用优化配置
            $typeConfig = Apply-OptimizationConfig `
                -Config $config `
                -Type $type `
                -Mode $OptimizationMode `
                -Settings $OptimizationConfig
            
            $status.Config = $typeConfig
            
            # 优化系统资产
            $optimizations = Optimize-AssetUsage `
                -Type $type `
                -Config $typeConfig
            
            $status.Optimizations = $optimizations
            $optimizer.Optimizations[$type] = $optimizations
            
            # 执行优化动作
            $actions = Execute-OptimizationActions `
                -Optimizations $optimizations `
                -Config $typeConfig
            
            $status.Actions = $actions
            $optimizer.Actions += $actions
            
            # 更新优化状态
            if ($actions.Count -gt 0) {
                $status.Status = "Optimized"
            }
            else {
                $status.Status = "NoAction"
            }
            
            $optimizer.OptimizationStatus[$type] = $status
        }
        
        # 生成报告
        if ($ReportPath) {
            $report = Generate-OptimizationReport `
                -Optimizer $optimizer `
                -Config $config
            
            $report | ConvertTo-Json -Depth 10 | Out-File -FilePath $ReportPath
        }
        
        # 更新优化器状态
        $optimizer.EndTime = Get-Date
        
        return $optimizer
    }
    catch {
        Write-Error "资产优化失败：$_"
        return $null
    }
}

使用示例

以下是如何使用这些函数来管理资产的示例：

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# 发现系统资产
$discoverer = Discover-SystemAssets -DiscoveryID "DISCOVERY001" `
    -AssetTypes @("Hardware", "Software", "Network", "Storage") `
    -DiscoveryMode "Full" `
    -DiscoveryConfig @{
        "Hardware" = @{
            "Categories" = @("Server", "Desktop", "Mobile")
            "Attributes" = @("CPU", "Memory", "Storage")
            "Filter" = "Status = Active"
            "Retention" = 7
        }
        "Software" = @{
            "Categories" = @("OS", "Application", "Driver")
            "Attributes" = @("Version", "License", "InstallDate")
            "Filter" = "Status = Installed"
            "Retention" = 7
        }
        "Network" = @{
            "Categories" = @("Device", "Connection", "Protocol")
            "Attributes" = @("IP", "MAC", "Speed")
            "Filter" = "Status = Connected"
            "Retention" = 7
        }
        "Storage" = @{
            "Categories" = @("Disk", "Volume", "Share")
            "Attributes" = @("Size", "Free", "Type")
            "Filter" = "Status = Online"
            "Retention" = 7
        }
    } `
    -LogPath "C:\Logs\asset_discovery.json"

# 跟踪系统资产
$tracker = Track-SystemAssets -TrackingID "TRACKING001" `
    -TrackingTypes @("Usage", "Cost", "Lifecycle") `
    -TrackingMode "Usage" `
    -TrackingConfig @{
        "Usage" = @{
            "Metrics" = @("CPU", "Memory", "Storage", "Network")
            "Threshold" = 80
            "Interval" = 60
            "Report" = $true
        }
        "Cost" = @{
            "Metrics" = @("License", "Maintenance", "Support")
            "Threshold" = 1000
            "Interval" = 30
            "Report" = $true
        }
        "Lifecycle" = @{
            "Metrics" = @("Age", "Warranty", "Depreciation")
            "Threshold" = 365
            "Interval" = 90
            "Report" = $true
        }
    } `
    -ReportPath "C:\Reports\asset_tracking.json"

# 优化系统资产
$optimizer = Optimize-SystemAssets -OptimizationID "OPTIMIZATION001" `
    -OptimizationTypes @("Cost", "Performance", "Utilization") `
    -OptimizationMode "Cost" `
    -OptimizationConfig @{
        "Cost" = @{
            "Metrics" = @("License", "Maintenance", "Support")
            "Threshold" = 1000
            "Actions" = @("Renew", "Upgrade", "Terminate")
            "Report" = $true
        }
        "Performance" = @{
            "Metrics" = @("CPU", "Memory", "Storage", "Network")
            "Threshold" = 80
            "Actions" = @("Scale", "Upgrade", "Migrate")
            "Report" = $true
        }
        "Utilization" = @{
            "Metrics" = @("Usage", "Efficiency", "Availability")
            "Threshold" = 60
            "Actions" = @("Consolidate", "Optimize", "Decommission")
            "Report" = $true
        }
    } `
    -ReportPath "C:\Reports\asset_optimization.json"

最佳实践

  1. 实施资产发现
  2. 跟踪资产使用
  3. 优化资产利用
  4. 保持详细的资产记录
  5. 定期进行资产评估
  6. 实施优化策略
  7. 建立成本控制
  8. 保持系统文档更新
发表更新powershell / tip4 分钟读完 (大约572个字)

PowerShell 技能连载 - 视频处理技巧

在 PowerShell 中处理视频文件是一项有趣的任务，本文将介绍一些实用的视频处理技巧。

首先，让我们看看基本的视频操作：

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# 创建视频信息获取函数
function Get-VideoInfo {
    param(
        [string]$VideoPath
    )
    
    try {
        # 使用 ffprobe 获取视频信息
        $ffprobe = "ffprobe"
        $info = & $ffprobe -v quiet -print_format json -show_format -show_streams $VideoPath | ConvertFrom-Json
        
        $videoStream = $info.streams | Where-Object { $_.codec_type -eq "video" }
        $audioStream = $info.streams | Where-Object { $_.codec_type -eq "audio" }
        
        return [PSCustomObject]@{
            FileName = Split-Path $VideoPath -Leaf
            Duration = [math]::Round([double]$info.format.duration, 2)
            Size = [math]::Round([double]$info.format.size / 1MB, 2)
            Bitrate = [math]::Round([double]$info.format.bit_rate / 1000, 2)
            Format = $info.format.format_name
            VideoCodec = $videoStream.codec_name
            VideoResolution = "$($videoStream.width)x$($videoStream.height)"
            AudioCodec = $audioStream.codec_name
            AudioChannels = $audioStream.channels
        }
    }
    catch {
        Write-Host "获取视频信息失败：$_"
    }
}

视频格式转换：

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# 创建视频格式转换函数
function Convert-VideoFormat {
    param(
        [string]$InputPath,
        [string]$OutputPath,
        [ValidateSet("mp4", "avi", "mkv", "mov")]
        [string]$TargetFormat,
        [ValidateSet("high", "medium", "low")]
        [string]$Quality = "medium"
    )
    
    try {
        $ffmpeg = "ffmpeg"
        $qualitySettings = @{
            "high" = "-crf 17"
            "medium" = "-crf 23"
            "low" = "-crf 28"
        }
        
        $command = "$ffmpeg -i `"$InputPath`" $($qualitySettings[$Quality]) `"$OutputPath`""
        Invoke-Expression $command
        
        Write-Host "格式转换完成：$OutputPath"
    }
    catch {
        Write-Host "转换失败：$_"
    }
}

视频剪辑：

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# 创建视频剪辑函数
function Split-Video {
    param(
        [string]$InputPath,
        [string]$OutputFolder,
        [double]$StartTime,
        [double]$Duration
    )
    
    try {
        $ffmpeg = "ffmpeg"
        $fileName = [System.IO.Path]::GetFileNameWithoutExtension($InputPath)
        $extension = [System.IO.Path]::GetExtension($InputPath)
        $outputPath = Join-Path $OutputFolder "$fileName`_split$extension"
        
        $command = "$ffmpeg -i `"$InputPath`" -ss $StartTime -t $Duration `"$outputPath`""
        Invoke-Expression $command
        
        Write-Host "视频剪辑完成：$outputPath"
    }
    catch {
        Write-Host "剪辑失败：$_"
    }
}

视频压缩：

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# 创建视频压缩函数
function Compress-Video {
    param(
        [string]$InputPath,
        [string]$OutputPath,
        [ValidateSet("high", "medium", "low")]
        [string]$Quality = "medium",
        [int]$MaxWidth = 1920
    )
    
    try {
        $ffmpeg = "ffmpeg"
        $qualitySettings = @{
            "high" = "-crf 23"
            "medium" = "-crf 28"
            "low" = "-crf 33"
        }
        
        $command = "$ffmpeg -i `"$InputPath`" -vf scale=$MaxWidth`:-1 $($qualitySettings[$Quality]) `"$OutputPath`""
        Invoke-Expression $command
        
        Write-Host "视频压缩完成：$OutputPath"
    }
    catch {
        Write-Host "压缩失败：$_"
    }
}

视频帧提取：

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# 创建视频帧提取函数
function Extract-VideoFrames {
    param(
        [string]$InputPath,
        [string]$OutputFolder,
        [double]$Interval = 1.0,
        [ValidateSet("jpg", "png")]
        [string]$Format = "jpg"
    )
    
    try {
        $ffmpeg = "ffmpeg"
        if (-not (Test-Path $OutputFolder)) {
            New-Item -ItemType Directory -Path $OutputFolder | Out-Null
        }
        
        $fileName = [System.IO.Path]::GetFileNameWithoutExtension($InputPath)
        $outputPattern = Join-Path $OutputFolder "$fileName`_%d.$Format"
        
        $command = "$ffmpeg -i `"$InputPath`" -vf fps=1/$Interval `"$outputPattern`""
        Invoke-Expression $command
        
        Write-Host "帧提取完成：$OutputFolder"
    }
    catch {
        Write-Host "帧提取失败：$_"
    }
}

这些技巧将帮助您更有效地处理视频文件。记住，在处理视频时，始终要注意文件格式的兼容性和视频质量。同时，建议在处理大型视频文件时使用流式处理方式，以提高性能。

发表更新powershell / tip4 分钟读完 (大约658个字)

PowerShell 技能连载 - Kubernetes 管理技巧

在 PowerShell 中管理 Kubernetes 是一项重要任务，本文将介绍一些实用的 Kubernetes 管理技巧。

首先，让我们看看基本的 Kubernetes 操作：

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# 创建 Kubernetes 集群管理函数
function Manage-K8sCluster {
    param(
        [string]$ClusterName,
        [string]$ResourceGroup,
        [string]$Location,
        [string]$NodeCount,
        [string]$NodeSize,
        [ValidateSet('Create', 'Update', 'Delete', 'Start', 'Stop')]
        [string]$Action
    )
    
    try {
        Import-Module Az.Aks
        
        switch ($Action) {
            'Create' {
                New-AzAksCluster -Name $ClusterName -ResourceGroupName $ResourceGroup -Location $Location -NodeCount $NodeCount -NodeSize $NodeSize
                Write-Host "Kubernetes 集群 $ClusterName 创建成功"
            }
            'Update' {
                Update-AzAksCluster -Name $ClusterName -ResourceGroupName $ResourceGroup -NodeCount $NodeCount
                Write-Host "Kubernetes 集群 $ClusterName 更新成功"
            }
            'Delete' {
                Remove-AzAksCluster -Name $ClusterName -ResourceGroupName $ResourceGroup -Force
                Write-Host "Kubernetes 集群 $ClusterName 删除成功"
            }
            'Start' {
                Start-AzAksCluster -Name $ClusterName -ResourceGroupName $ResourceGroup
                Write-Host "Kubernetes 集群 $ClusterName 已启动"
            }
            'Stop' {
                Stop-AzAksCluster -Name $ClusterName -ResourceGroupName $ResourceGroup
                Write-Host "Kubernetes 集群 $ClusterName 已停止"
            }
        }
    }
    catch {
        Write-Host "Kubernetes 集群操作失败：$_"
    }
}

Kubernetes 资源部署：

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# 创建 Kubernetes 资源部署函数
function Deploy-K8sResource {
    param(
        [string]$Namespace,
        [string]$ManifestPath,
        [string]$Context,
        [switch]$DryRun
    )
    
    try {
        Import-Module Kubernetes
        
        if ($DryRun) {
            $result = kubectl apply -f $ManifestPath -n $Namespace --context $Context --dry-run=client
            Write-Host "部署预览："
            $result
        }
        else {
            $result = kubectl apply -f $ManifestPath -n $Namespace --context $Context
            Write-Host "资源已部署到命名空间 $Namespace"
        }
        
        return [PSCustomObject]@{
            Namespace = $Namespace
            ManifestPath = $ManifestPath
            Context = $Context
            Result = $result
        }
    }
    catch {
        Write-Host "资源部署失败：$_"
    }
}

Kubernetes 日志收集：

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# 创建 Kubernetes 日志收集函数
function Get-K8sLogs {
    param(
        [string]$Namespace,
        [string]$Pod,
        [string]$Container,
        [int]$Lines = 100,
        [datetime]$Since,
        [string]$OutputPath
    )
    
    try {
        Import-Module Kubernetes
        
        $logParams = @(
            "logs",
            $Pod,
            "-n", $Namespace,
            "--tail=$Lines"
        )
        
        if ($Container) {
            $logParams += "-c", $Container
        }
        
        if ($Since) {
            $logParams += "--since=$($Since.ToString('yyyy-MM-ddTHH:mm:ssZ'))"
        }
        
        $logs = kubectl $logParams
        
        if ($OutputPath) {
            $logs | Out-File -FilePath $OutputPath -Encoding UTF8
        }
        
        return [PSCustomObject]@{
            Pod = $Pod
            Namespace = $Namespace
            Container = $Container
            LogCount = $logs.Count
            OutputPath = $OutputPath
        }
    }
    catch {
        Write-Host "日志收集失败：$_"
    }
}

Kubernetes 资源监控：

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# 创建 Kubernetes 资源监控函数
function Monitor-K8sResources {
    param(
        [string]$Namespace,
        [string]$ResourceType,
        [int]$Duration = 3600,
        [int]$Interval = 60
    )
    
    try {
        Import-Module Kubernetes
        
        $metrics = @()
        $endTime = Get-Date
        $startTime = $endTime.AddSeconds(-$Duration)
        
        while ($startTime -lt $endTime) {
            $resourceMetrics = switch ($ResourceType) {
                "Pod" {
                    kubectl top pods -n $Namespace
                }
                "Node" {
                    kubectl top nodes
                }
                "Deployment" {
                    kubectl top deployment -n $Namespace
                }
                default {
                    throw "不支持的资源类型：$ResourceType"
                }
            }
            
            $metrics += [PSCustomObject]@{
                Time = $startTime
                ResourceType = $ResourceType
                Metrics = $resourceMetrics
            }
            
            $startTime = $startTime.AddSeconds($Interval)
            Start-Sleep -Seconds $Interval
        }
        
        return [PSCustomObject]@{
            Namespace = $Namespace
            ResourceType = $ResourceType
            Duration = $Duration
            Interval = $Interval
            Metrics = $metrics
        }
    }
    catch {
        Write-Host "资源监控失败：$_"
    }
}

Kubernetes 问题诊断：

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# 创建 Kubernetes 问题诊断函数
function Debug-K8sIssues {
    param(
        [string]$Namespace,
        [string]$Pod,
        [string]$OutputPath
    )
    
    try {
        Import-Module Kubernetes
        
        $diagnostics = @{
            PodStatus = kubectl get pod $Pod -n $Namespace -o yaml
            PodDescription = kubectl describe pod $Pod -n $Namespace
            PodEvents = kubectl get events -n $Namespace --field-selector involvedObject.name=$Pod
            PodLogs = kubectl logs $Pod -n $Namespace
        }
        
        if ($OutputPath) {
            $diagnostics | ConvertTo-Json -Depth 10 | Out-File -FilePath $OutputPath -Encoding UTF8
        }
        
        return [PSCustomObject]@{
            Pod = $Pod
            Namespace = $Namespace
            Diagnostics = $diagnostics
            OutputPath = $OutputPath
        }
    }
    catch {
        Write-Host "问题诊断失败：$_"
    }
}

这些技巧将帮助您更有效地管理 Kubernetes。记住，在处理 Kubernetes 时，始终要注意安全性和性能。同时，建议使用适当的错误处理和日志记录机制来跟踪所有操作。

发表更新powershell / tip4 分钟读完 (大约614个字)

PowerShell 技能连载 - Kubernetes 管理技巧

在 PowerShell 中管理 Kubernetes 集群是一项重要任务，本文将介绍一些实用的 Kubernetes 管理技巧。

首先，让我们看看基本的 Kubernetes 操作：

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# 创建 Kubernetes 集群信息获取函数
function Get-K8sClusterInfo {
    param(
        [string]$Context
    )
    
    try {
        $kubectl = "kubectl"
        if ($Context) {
            $kubectl += " --context=$Context"
        }
        
        $nodes = & $kubectl get nodes -o json | ConvertFrom-Json
        $pods = & $kubectl get pods --all-namespaces -o json | ConvertFrom-Json
        
        return [PSCustomObject]@{
            NodeCount = $nodes.items.Count
            PodCount = $pods.items.Count
            Namespaces = ($pods.items | Select-Object -ExpandProperty metadata | Select-Object -ExpandProperty namespace -Unique).Count
            NodeStatus = $nodes.items | ForEach-Object {
                [PSCustomObject]@{
                    Name = $_.metadata.name
                    Status = $_.status.conditions | Where-Object { $_.type -eq "Ready" } | Select-Object -ExpandProperty status
                    Version = $_.status.nodeInfo.kubeletVersion
                }
            }
        }
    }
    catch {
        Write-Host "获取集群信息失败：$_"
    }
}

Kubernetes 资源部署：

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# 创建 Kubernetes 资源部署函数
function Deploy-K8sResource {
    param(
        [string]$ManifestPath,
        [string]$Namespace,
        [string]$Context,
        [switch]$DryRun
    )
    
    try {
        $kubectl = "kubectl"
        if ($Context) {
            $kubectl += " --context=$Context"
        }
        if ($Namespace) {
            $kubectl += " -n $Namespace"
        }
        if ($DryRun) {
            $kubectl += " --dry-run=client"
        }
        
        $command = "$kubectl apply -f `"$ManifestPath`""
        Invoke-Expression $command
        
        Write-Host "资源部署完成"
    }
    catch {
        Write-Host "部署失败：$_"
    }
}

Kubernetes 日志收集：

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# 创建 Kubernetes 日志收集函数
function Get-K8sLogs {
    param(
        [string]$PodName,
        [string]$Namespace,
        [string]$Container,
        [int]$Lines = 100,
        [string]$Context,
        [datetime]$Since
    )
    
    try {
        $kubectl = "kubectl"
        if ($Context) {
            $kubectl += " --context=$Context"
        }
        if ($Namespace) {
            $kubectl += " -n $Namespace"
        }
        if ($Container) {
            $kubectl += " -c $Container"
        }
        if ($Since) {
            $kubectl += " --since=$($Since.ToString('yyyy-MM-ddTHH:mm:ssZ'))"
        }
        
        $command = "$kubectl logs $PodName --tail=$Lines"
        $logs = Invoke-Expression $command
        
        return [PSCustomObject]@{
            PodName = $PodName
            Container = $Container
            Logs = $logs
            Timestamp = Get-Date
        }
    }
    catch {
        Write-Host "日志收集失败：$_"
    }
}

Kubernetes 资源监控：

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# 创建 Kubernetes 资源监控函数
function Monitor-K8sResources {
    param(
        [string]$Namespace,
        [string]$Context,
        [int]$Interval = 60,
        [int]$Duration = 3600
    )
    
    try {
        $kubectl = "kubectl"
        if ($Context) {
            $kubectl += " --context=$Context"
        }
        if ($Namespace) {
            $kubectl += " -n $Namespace"
        }
        
        $startTime = Get-Date
        $metrics = @()
        
        while ((Get-Date) - $startTime).TotalSeconds -lt $Duration {
            $pods = & $kubectl get pods -o json | ConvertFrom-Json
            $nodes = & $kubectl get nodes -o json | ConvertFrom-Json
            
            $metrics += [PSCustomObject]@{
                Timestamp = Get-Date
                PodCount = $pods.items.Count
                NodeCount = $nodes.items.Count
                PodStatus = $pods.items | Group-Object { $_.status.phase } | ForEach-Object {
                    [PSCustomObject]@{
                        Status = $_.Name
                        Count = $_.Count
                    }
                }
                NodeStatus = $nodes.items | Group-Object { $_.status.conditions | Where-Object { $_.type -eq "Ready" } | Select-Object -ExpandProperty status } | ForEach-Object {
                    [PSCustomObject]@{
                        Status = $_.Name
                        Count = $_.Count
                    }
                }
            }
            
            Start-Sleep -Seconds $Interval
        }
        
        return $metrics
    }
    catch {
        Write-Host "监控失败：$_"
    }
}

Kubernetes 故障排查：

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# 创建 Kubernetes 故障排查函数
function Debug-K8sIssues {
    param(
        [string]$PodName,
        [string]$Namespace,
        [string]$Context,
        [switch]$IncludeEvents,
        [switch]$IncludeLogs
    )
    
    try {
        $kubectl = "kubectl"
        if ($Context) {
            $kubectl += " --context=$Context"
        }
        if ($Namespace) {
            $kubectl += " -n $Namespace"
        }
        
        $diagnostics = @{
            PodStatus = & $kubectl get pod $PodName -o json | ConvertFrom-Json
            PodDescription = & $kubectl describe pod $PodName
        }
        
        if ($IncludeEvents) {
            $diagnostics.Events = & $kubectl get events --field-selector involvedObject.name=$PodName
        }
        
        if ($IncludeLogs) {
            $diagnostics.Logs = & $kubectl logs $PodName
        }
        
        return [PSCustomObject]$diagnostics
    }
    catch {
        Write-Host "故障排查失败：$_"
    }
}

这些技巧将帮助您更有效地管理 Kubernetes 集群。记住，在处理 Kubernetes 资源时，始终要注意集群的安全性和稳定性。同时，建议在处理大型集群时使用适当的资源限制和监控机制。

发表更新powershell / tip5 分钟读完 (大约783个字)

PowerShell 技能连载 - AI 集成技巧

在 PowerShell 中集成 AI 功能是一项前沿任务，本文将介绍一些实用的 AI 集成技巧。

首先，让我们看看如何与 OpenAI API 进行交互：

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# 创建 OpenAI 交互函数
function Invoke-OpenAIAPI {
    param(
        [string]$ApiKey,
        [string]$Prompt,
        [ValidateSet('gpt-4', 'gpt-3.5-turbo')]
        [string]$Model = 'gpt-3.5-turbo',
        [float]$Temperature = 0.7,
        [int]$MaxTokens = 500
    )
    
    try {
        $headers = @{
            'Content-Type' = 'application/json'
            'Authorization' = "Bearer $ApiKey"
        }
        
        $body = @{
            model = $Model
            messages = @(
                @{
                    role = "user"
                    content = $Prompt
                }
            )
            temperature = $Temperature
            max_tokens = $MaxTokens
        } | ConvertTo-Json
        
        $response = Invoke-RestMethod -Uri "https://api.openai.com/v1/chat/completions" -Method Post -Headers $headers -Body $body
        return $response.choices[0].message.content
    }
    catch {
        Write-Host "OpenAI API 调用失败：$_"
    }
}

使用 AI 生成 PowerShell 脚本：

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# 创建 AI 脚本生成函数
function New-AIScript {
    param(
        [string]$ApiKey,
        [string]$Description,
        [string]$OutputPath
    )
    
    try {
        $prompt = @"
生成一个 PowerShell 脚本，完成以下功能：$Description

要求：
1. 脚本应包含详细的注释
2. 包含适当的错误处理
3. 遵循 PowerShell 最佳实践
4. 只返回脚本代码，不要额外的解释
"@
        
        $script = Invoke-OpenAIAPI -ApiKey $ApiKey -Prompt $prompt -MaxTokens 2000
        
        if ($OutputPath) {
            $script | Out-File -FilePath $OutputPath -Encoding UTF8
            Write-Host "脚本已保存至：$OutputPath"
        }
        
        return $script
    }
    catch {
        Write-Host "AI 脚本生成失败：$_"
    }
}

利用 AI 进行日志分析：

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# 创建 AI 日志分析函数
function Analyze-LogsWithAI {
    param(
        [string]$ApiKey,
        [string]$LogFilePath,
        [string]$OutputPath,
        [switch]$IncludeRecommendations
    )
    
    try {
        $logs = Get-Content -Path $LogFilePath -Raw
        
        # 将日志截断到合理的大小
        if ($logs.Length -gt 4000) {
            $logs = $logs.Substring(0, 4000) + "... [日志截断]"
        }
        
        $promptSuffix = ""
        if ($IncludeRecommendations) {
            $promptSuffix = "并提供解决方案建议。"
        }
        
        $prompt = @"
分析以下系统日志，识别可能的错误、警告和问题模式$promptSuffix

日志内容：
$logs
"@
        
        $analysis = Invoke-OpenAIAPI -ApiKey $ApiKey -Prompt $prompt -MaxTokens 1500
        
        if ($OutputPath) {
            $analysis | Out-File -FilePath $OutputPath -Encoding UTF8
            Write-Host "分析结果已保存至：$OutputPath"
        }
        
        return $analysis
    }
    catch {
        Write-Host "AI 日志分析失败：$_"
    }
}

AI 辅助的自动化故障排除：

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# 创建 AI 故障排除函数
function Start-AITroubleshooting {
    param(
        [string]$ApiKey,
        [string]$Issue,
        [switch]$RunDiagnostics
    )
    
    try {
        $systemInfo = Get-ComputerInfo | ConvertTo-Json
        
        if ($RunDiagnostics) {
            $eventLogs = Get-WinEvent -LogName Application -MaxEvents 20 | Select-Object TimeCreated, LevelDisplayName, Message | ConvertTo-Json
            $services = Get-Service | Where-Object { $_.Status -eq 'Stopped' -and $_.StartType -eq 'Automatic' } | ConvertTo-Json
            
            $diagnosticInfo = @"
系统信息：
$systemInfo

最近事件日志：
$eventLogs

已停止的自动启动服务：
$services
"@
        } else {
            $diagnosticInfo = "系统信息：$systemInfo"
        }
        
        $prompt = @"
我有以下系统问题：$Issue

基于以下系统信息，提供排查步骤和可能的解决方案：

$diagnosticInfo
"@
        
        $troubleshooting = Invoke-OpenAIAPI -ApiKey $ApiKey -Prompt $prompt -MaxTokens 2000 -Model 'gpt-4'
        
        return $troubleshooting
    }
    catch {
        Write-Host "AI 故障排除失败：$_"
    }
}

使用 AI 优化 PowerShell 脚本性能：

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# 创建 AI 脚本优化函数
function Optimize-ScriptWithAI {
    param(
        [string]$ApiKey,
        [string]$ScriptPath,
        [string]$OutputPath,
        [switch]$IncludeExplanation
    )
    
    try {
        $script = Get-Content -Path $ScriptPath -Raw
        
        $promptSuffix = ""
        if ($IncludeExplanation) {
            $promptSuffix = "并解释所做的改动和优化理由。"
        }
        
        $prompt = @"
优化以下 PowerShell 脚本的性能和代码质量$promptSuffix

脚本内容：
$script
"@
        
        $optimizedScript = Invoke-OpenAIAPI -ApiKey $ApiKey -Prompt $prompt -MaxTokens 2000 -Model 'gpt-4'
        
        if ($OutputPath) {
            $optimizedScript | Out-File -FilePath $OutputPath -Encoding UTF8
            Write-Host "优化后的脚本已保存至：$OutputPath"
        }
        
        return $optimizedScript
    }
    catch {
        Write-Host "AI 脚本优化失败：$_"
    }
}

这些技巧将帮助您更有效地在 PowerShell 中集成 AI 功能。记住，在处理 AI 相关任务时，始终要注意 API 密钥的安全性和成本控制。同时，建议使用适当的错误处理和日志记录机制来跟踪所有操作。

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