AzStackHciConnectivity/AzStackHci.Connectivity.psm1

<#############################################################
 # #
 # Copyright (C) Microsoft Corporation. All rights reserved. #
 # #
 #############################################################>


Import-Module $PSScriptRoot\AzStackHci.Connectivity.Helpers.psm1 -Force -DisableNameChecking -Global
Import-Module $PSScriptRoot\..\AzStackHci.EnvironmentChecker.Utilities.psm1 -Force -DisableNameChecking -Global
Import-Module $PSScriptRoot\..\AzStackHci.EnvironmentChecker.Reporting.psm1 -Force -DisableNameChecking -Global
Import-LocalizedData -BindingVariable lcTxt -FileName AzStackHci.Connectivity.Strings.psd1
function Invoke-AzStackHciConnectivityValidation
{
    <#
    .SYNOPSIS
        Perform AzStackHci Network Validation
    .DESCRIPTION
        Perform AzStackHci Network Validation
    .EXAMPLE
        PS C:\> Invoke-AzStackHciConnectivityValidation
        Perform network validation against all built in service targets from localhost.
    .EXAMPLE
        PS C:\> $Credential = Get-Credential -Message "Credential for local cluster"
        PS C:\> Invoke-AzStackHciConnectivityValidation -Credential $Credential
        Perform network validation against all built in service targets from all cluster nodes of local system.
    .EXAMPLE
        PS C:\> Invoke-AzStackHciConnectivityValidation -Service ARC
        Perform network validation against ARC targets from localhost.
    .EXAMPLE
        PS C:\> $Credential = Get-Credential -Message "Credential for $RemoteSystem"
        PS C:\> $RemoteSystemSession = New-PSSession -Computer 10.0.0.4 -Credential $Credential
        PS C:\> Invoke-AzStackHciConnectivityValidation -PsSession $RemoteSystemSession
        Perform network validation against all built in service target from pre-existing remote PS session.
    .EXAMPLE
        PS C:\> $RemoteSystem = 'node01.contoso.com'
        PS C:\> $Credential = Get-Credential -Message "Credential for $RemoteSystem"
        PS C:\> Invoke-AzStackHciConnectivityValidation -ComputerName $RemoteSystem -Credential $Credential
        Perform network validation against all built in service target from a remote system.
    .INPUTS
        Inputs (if any)
    .OUTPUTS
        Output (if any)
    .NOTES
        View Results: Use the commands above but add the results to a variable for simplicity then use the following to view e.g.
        $result = Invoke-AzStackHciConnectivityValidation -Service ARC
 
        # Review first result in detail
        $result[0]
 
        $formattingHelpScriptBlock = {$_.AdditionalData | Select-Object ComputerName, StatusCode, EndPoint | ConvertTo-Json};
        $Result | Format-Table Status, Title, Service, OperationType, @{Name ='Detail'; Expression = $formattingHelpScriptBlock } -AutoSize -Wrap
 
        View Log file: Get-Content "$Home\.AzStackHci\AzStackHciEnvironmentChecker.log"
    #>

    [CmdletBinding()]
    param (

        [Parameter(Mandatory = $false, HelpMessage = "Specify the Computer Name(s) to run validation from. If null the local machine will be used.")]
        [string[]]
        $ComputerName,

        [Parameter(Mandatory = $false, HelpMessage = "Specify the Cluster Name to run validation from. If null the local machine will be used.")]
        [string]
        $Cluster,

        [Parameter(Mandatory = $false, HelpMessage = "Specify the credential used to connect to remote computer.")]
        [pscredential]
        $Credential,

        [Parameter(Mandatory = $false, HelpMessage = "Specify the authentication used to connect to remote computer.")]
        [System.Management.Automation.Runspaces.AuthenticationMechanism]
        $Authentication,

        [Parameter(Mandatory = $false, HelpMessage = "Specify the PsSession(s) used to validation from. If null the local machine will be used.")]
        [System.Management.Automation.Runspaces.PSSession[]]
        $PsSession,

        [Parameter(Mandatory = $false, HelpMessage = "Specify the services to target for connectivity validation.")]
        [ArgumentCompleter({ Get-AzStackHciConnectivityServiceName })]
        [ValidateScript({ $_ -in (Get-AzStackHciConnectivityServiceName) })]
        [string[]]
        $Service,

        [Parameter(Mandatory = $false, HelpMessage = "Specify the Operation Type to target for connectivity validation. e.g. Deployment, Update, etc...")]
        [ArgumentCompleter({ Get-AzStackHciConnectivityOperationName })]
        [ValidateScript({ $_ -in (Get-AzStackHciConnectivityOperationName) })]
        [string[]]
        $OperationType,

        [Parameter(Mandatory = $false, HelpMessage = "Specify proxy server.")]
        [string]
        $Proxy,

        [Parameter(Mandatory = $false, HelpMessage = "Specify proxy server credential.")]
        [pscredential]
        $ProxyCredential,

        [Parameter(Mandatory = $false, HelpMessage = "Return PSObject result.")]
        [switch]
        $PassThru,

        [Parameter(Mandatory = $false, HelpMessage = "Directory path for log and report output")]
        [string]$OutputPath,

        [Parameter(Mandatory = $false, HelpMessage = "Remove all previous progress and create a clean report")]
        [switch]$CleanReport = $false

    )

    try
    {
        $script:ErrorActionPreference = 'Stop'
        Set-AzStackHciOutputPath -Path $OutputPath
        $script:Standalone = [bool](Get-Module -Name AzStackHci.EnvironmentChecker -ErrorAction SilentlyContinue)
        if ($script:Standalone -and -not $PassThru)
        {
            Write-AzStackHciHeader -invocation $MyInvocation -params $PSBoundParameters
            Log-Info "Running in standalone mode"
            Test-ModuleUpdate
        }

        # Call/Initialise reporting
        $envcheckerReport = Get-AzStackHciEnvProgress -clean:$CleanReport
        $envcheckerReport = Add-AzStackHciEnvJob -report $envcheckerReport

        # Create neccessary PsSessions
        if (-not $PsSession)
        {
            $PsSession = Open-PsSession -ComputerName $ComputerName -Cluster $Cluster -Authentication $Authentication -Credential $Credential
        }

        # TO DO: Omit system?
        $ConnectivityTargets = Get-AzStackHciConnectivityTarget -Service $Service -OperationType $OperationType
        Write-Progress -Id 1 -Activity "Checking AzStackHci Dependancies" -Status "Environment configuration" -PercentComplete 0 -ErrorAction SilentlyContinue

        # Run validation
        $i = 0
        $webResult = @()
        $diagnosticResults = @()
        if ($PsSession)
        {
            foreach ($Session in $PsSession)
            {
                if ($Session.State -ne 'Opened')
                {
                    try
                    {
                        Connect-PSSession -Session $Session
                    }
                    catch
                    {
                        $PsSessionFail = $lcTxt.PsSessionFail -f $Session.ComputerName, $_.Exception.Message
                        Log-Info ($PsSessionFail) -type Error
                        throw $PsSessionFail
                    }
                }
                $diagnosticResults += Test-Dns -PsSession $Session
                # Fail fast if dns fails
                if ($diagnosticResults[-1].Status -ne 'Succeeded')
                {
                    Log-Info ($lcTxt.DnsFail -f $Session.ComputerName, ($dnsResult.AdditionalData.Detail | ConvertTo-Json)) -Type Warning -ConsoleOut
                }
                $diagnosticResults += Get-ProxyDiagnostics -PsSession $Session -Proxy $Proxy
                $diagnosticResults += Test-RootCA -PsSession $Session -Proxy $Proxy -ProxyCredential $ProxyCredential
                if ($diagnosticResults.Status -contains 'Failed')
                {
                    throw $lcTxt.DiagnosticSystemFailure -f ($diagnosticResults | Where-Object Status -EQ 'Failed' | ConvertTo-Json)
                }
                foreach ($Target in $ConnectivityTargets)
                {
                    $i++
                    $progressPercentage = ($i / (($ConnectivityTargets.Count) * $PsSession.Count )) * 100
                    Write-Progress -Id 1 -Activity "Checking AzStackHci dependencies to $($Target.Service)" -Status "Connectivity from $($Session.ComputerName) to $($Target.Title) Endpoints" -PercentComplete $progressPercentage -ErrorAction SilentlyContinue
                    Log-Info -Message ("Checking {0} on {1}" -f $target.Title, $session.ComputerName)
                    if ($Proxy)
                    {
                        $webResult += Invoke-WebRequestEx -Target $Target -PsSession $Session -Proxy $Proxy -ProxyCredential $ProxyCredential
                    }
                    else
                    {
                        $webResult += Invoke-TestNetConnection -Target $Target -PsSession $Session
                    }
                }
            }
        }
        else
        {
            $diagnosticResults += Test-Dns
            # Fail fast if dns fails
            if ($diagnosticResults[-1].Status -ne 'Succeeded')
            {
                Log-Info ($lcTxt.DnsFail -f $ENV:COMPUTERNAME, ($dnsResult.AdditionalData.Detail | ConvertTo-Json)) -Type Warning -ConsoleOut
            }
            $diagnosticResults += Get-ProxyDiagnostics -Proxy $Proxy
            $diagnosticResults += Test-RootCA -Proxy $Proxy -ProxyCredential $ProxyCredential
            if ($diagnosticResults.Status -contains 'Failed')
            {
                $failedDiagnosticResult = $diagnosticResults | Where-Object Status -EQ 'Failed' | ConvertTo-Json
                $failedDiagnosticDetailMsg = ($diagnosticResults | Where-Object Status -EQ 'Failed' | Select-Object -ExpandProperty AdditionalData | Select-Object -ExpandProperty Detail) -join '. '
                throw $lcTxt.DiagnosticSystemFailure -f $failedDiagnosticDetailMsg, $failedDiagnosticResult
            }
            foreach ($Target in $ConnectivityTargets)
            {
                $i++
                $progressPercentage = ($i / ($ConnectivityTargets.Count)) * 100
                $progressParams = @{
                    Id              = 1
                    Activity        = "Checking AzStackHci dependencies to $($Target.Service)"
                    Status          = if ($Proxy) { "Connectivity from $ENV:ComputerName (via $Proxy) to $($Target.Title) Endpoints" } else { "Connectivity from $ENV:ComputerName to $($Target.Title) Endpoints" }
                    PercentComplete = $progressPercentage
                    ErrorAction     = 'SilentlyContinue'
                }
                Write-Progress @progressParams
                Log-Info -Message ("Checking {0} (proxy:'{1}')" -f $target.Title, $proxy)
                if ($target.Protocol -notmatch 'http' -or -not $Proxy)
                {
                    $webResult += Invoke-TestNetConnection -Target $Target
                }
                else
                {
                    $webResult += Invoke-WebRequestEx -Target $Target -Proxy $Proxy -ProxyCredential $ProxyCredential
                }
            }
        }

        # Feedback results - user scenario
        if ($script:Standalone -and -not $PassThru)
        {
            Write-Host 'Connectivity Results'
            $webresult.service | Sort-Object | Get-Unique | Where-Object { $PSITEM -ne 'System' } | ForEach-Object {
                Write-AzStackHciResult -Title $PSITEM -Result ($webResult | Where-Object Service -EQ $PSITEM)
            }
            Write-AzStackHciResult -Title 'Diagnostics' -Result $diagnosticResults -Expand
            Write-Summary -Result $webResult -Property1 Source -Property2 Resource
            Write-FailedUrls -Result $webResult
        }
        else
        {
            return ($webResult + $diagnosticResults)
        }


    }
    catch
    {
        Log-Info -Message "" -ConsoleOut
        Log-Info -Message "$($_.Exception.Message)" -ConsoleOut -Type Error
        Log-Info -Message "$($_.ScriptStackTrace)" -ConsoleOut -Type Error
        $cmdletFailed = $true
    }
    finally
    {
        # Clean up
        if ($PsSession -and -not $PSBoundParameters['PsSession'])
        {
            $PsSession | Remove-PSSession
        }
        # Write result to telemetry channel
        foreach ($r in ($webResult + $diagnosticResults))
        {
            Write-ETWResult -Result $r
        }
        # Write validation result to report object and close out report
        $envcheckerReport | Add-Member -MemberType NoteProperty -Name 'Connectivity' -Value $webResult -Force
        $envcheckerReport | Add-Member -MemberType NoteProperty -Name 'Diagnostics' -Value $diagnosticResults -Force
        $envcheckerReport = Close-AzStackHciEnvJob -report $envcheckerReport
        Write-AzStackHciEnvReport -report $envcheckerReport
        Write-AzStackHciFooter -invocation $MyInvocation -Failed:$cmdletFailed
        Remove-Variable -Name AzStackHciConnectivityTargets -Scope GLOBAL -ErrorAction SilentlyContinue
    }
}
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