functions/Copy-DbaAgentServer.ps1

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function Copy-DbaAgentServer {
    <#
    .SYNOPSIS
        Copy SQL Server Agent from one server to another.
 
    .DESCRIPTION
        A wrapper function that calls the associated Copy command for each of the object types seen in SSMS under SQL Server Agent. This also copies all of the the SQL Agent properties (job history max rows, DBMail profile name, etc.).
 
        You must have sysadmin access and server version must be SQL Server version 2000 or greater.
 
    .PARAMETER Source
        Source SQL Server. You must have sysadmin access and server version must be SQL Server version 2000 or higher.
 
    .PARAMETER SourceSqlCredential
        Login to the target instance using alternative credentials. Windows and SQL Authentication supported. Accepts credential objects (Get-Credential)
 
    .PARAMETER Destination
        Destination SQL Server. You must have sysadmin access and the server must be SQL Server 2000 or higher.
 
    .PARAMETER DestinationSqlCredential
        Login to the target instance using alternative credentials. Windows and SQL Authentication supported. Accepts credential objects (Get-Credential)
 
    .PARAMETER DisableJobsOnDestination
        If this switch is enabled, the jobs will be disabled on Destination after copying.
 
    .PARAMETER DisableJobsOnSource
        If this switch is enabled, the jobs will be disabled on Source after copying.
 
    .PARAMETER WhatIf
        If this switch is enabled, no actions are performed but informational messages will be displayed that explain what would happen if the command were to run.
 
    .PARAMETER Confirm
        If this switch is enabled, you will be prompted for confirmation before executing any operations that change state.
 
    .PARAMETER EnableException
        By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.
        This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting.
        Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch.
 
    .PARAMETER Force
        If this switch is enabled, existing objects on Destination with matching names from Source will be dropped, then copied.
 
    .NOTES
        Tags: Migration, SqlServerAgent, SqlAgent
        Author: Chrissy LeMaire (@cl), netnerds.net
 
        Website: https://dbatools.io
        Copyright: (c) 2018 by dbatools, licensed under MIT
        License: MIT https://opensource.org/licenses/MIT
 
        Requires: sysadmin access on SQL Servers
 
    .LINK
        https://dbatools.io/Copy-DbaAgentServer
 
    .EXAMPLE
        PS C:\> Copy-DbaAgentServer -Source sqlserver2014a -Destination sqlcluster
 
        Copies all job server objects from sqlserver2014a to sqlcluster using Windows credentials for authentication. If job objects with the same name exist on sqlcluster, they will be skipped.
 
    .EXAMPLE
        PS C:\> Copy-DbaAgentServer -Source sqlserver2014a -Destination sqlcluster -SourceSqlCredential $cred
 
        Copies all job objects from sqlserver2014a to sqlcluster using SQL credentials to authentication to sqlserver2014a and Windows credentials to authenticate to sqlcluster.
 
    .EXAMPLE
        PS C:\> Copy-DbaAgentServer -Source sqlserver2014a -Destination sqlcluster -WhatIf
 
        Shows what would happen if the command were executed.
 
    #>

    [cmdletbinding(SupportsShouldProcess)]
    param (
        [parameter(Mandatory)]
        [DbaInstanceParameter]$Source,
        [PSCredential]$SourceSqlCredential,
        [parameter(Mandatory)]
        [DbaInstanceParameter[]]$Destination,
        [PSCredential]$DestinationSqlCredential,
        [Switch]$DisableJobsOnDestination,
        [Switch]$DisableJobsOnSource,
        [switch]$Force,
        [Alias('Silent')]
        [switch]$EnableException
    )

    begin {
        try {
            $sourceServer = Connect-SqlInstance -SqlInstance $Source -SqlCredential $SourceSqlCredential
        } catch {
            Stop-Function -Message "Error occurred while establishing connection to $instance" -Category ConnectionError -ErrorRecord $_ -Target $Source
            return
        }
        Invoke-SmoCheck -SqlInstance $sourceServer
        $sourceAgent = $sourceServer.JobServer
    }
    process {
        if (Test-FunctionInterrupt) { return }
        foreach ($destinstance in $Destination) {
            try {
                $destServer = Connect-SqlInstance -SqlInstance $destinstance -SqlCredential $DestinationSqlCredential
            } catch {
                Stop-Function -Message "Error occurred while establishing connection to $instance" -Category ConnectionError -ErrorRecord $_ -Target $destinstance -Continue
            }
            Invoke-SmoCheck -SqlInstance $destServer
            # All of these support whatif inside of them
            Copy-DbaAgentJobCategory -Source $sourceServer -Destination $destinstance -DestinationSqlCredentia $DestinationSqlCredential -Force:$force

            $destServer.Refresh()
            $destServer.JobServer.Refresh()
            $destServer.JobServer.JobCategories.Refresh()
            $destServer.JobServer.OperatorCategories.Refresh()
            $destServer.JobServer.AlertCategories.Refresh()

            Copy-DbaAgentOperator -Source $sourceServer -Destination $destinstance -DestinationSqlCredentia $DestinationSqlCredential -Force:$force
            $destServer.Refresh()
            $destServer.JobServer.Refresh()
            $destServer.JobServer.Operators.Refresh()

            # extra reconnect to force refresh
            $destServer = Connect-SqlInstance -SqlInstance $destinstance -SqlCredential $DestinationSqlCredential

            Copy-DbaAgentAlert -Source $sourceServer -Destination $destinstance -DestinationSqlCredentia $DestinationSqlCredential -Force:$force -IncludeDefaults
            $destServer.JobServer.Alerts.Refresh()

            Copy-DbaAgentProxy -Source $sourceServer -Destination $destinstance -DestinationSqlCredentia $DestinationSqlCredential -Force:$force
            $destServer.JobServer.ProxyAccounts.Refresh()

            Copy-DbaAgentSchedule -Source $sourceServer -Destination $destinstance -DestinationSqlCredentia $DestinationSqlCredential -Force:$force
            $destServer.JobServer.SharedSchedules.Refresh()

            $destServer.JobServer.Refresh()
            $destServer.Refresh()
            Copy-DbaAgentJob -Source $sourceServer -Destination $destinstance -DestinationSqlCredentia $DestinationSqlCredential -Force:$force -DisableOnDestination:$DisableJobsOnDestination -DisableOnSource:$DisableJobsOnSource

            # To do
            <#
            Copy-DbaAgentMasterServer -Source $sourceServer -Destination $destinstance -DestinationSqlCredentia $DestinationSqlCredential -Force:$force
            Copy-DbaAgentTargetServer -Source $sourceServer -Destination $destinstance -DestinationSqlCredentia $DestinationSqlCredential -Force:$force
            Copy-DbaAgentTargetServerGroup -Source $sourceServer -Destination $destinstance -DestinationSqlCredentia $DestinationSqlCredential -Force:$force
        #>


            <# Here are the properties which must be migrated separately #>
            $copyAgentPropStatus = [pscustomobject]@{
                SourceServer      = $sourceServer.Name
                DestinationServer = $destServer.Name
                Name              = "Server level properties"
                Type              = "Agent Properties"
                Status            = $null
                Notes             = $null
                DateTime          = [DbaDateTime](Get-Date)
            }

            if ($Pscmdlet.ShouldProcess($destinstance, "Copying Agent Properties")) {
                try {
                    Write-Message -Level Verbose -Message "Copying SQL Agent Properties"
                    $sql = $sourceAgent.Script() | Out-String
                    $sql = $sql -replace [Regex]::Escape("'$source'"), "'$destinstance'"
                    $sql = $sql -replace [Regex]::Escape("@errorlog_file="), [Regex]::Escape("--@errorlog_file=")
                    $sql = $sql -replace [Regex]::Escape("@auto_start="), [Regex]::Escape("--@auto_start=")
                    Write-Message -Level Debug -Message $sql
                    $null = $destServer.Query($sql)

                    $copyAgentPropStatus.Status = "Successful"
                    $copyAgentPropStatus | Select-DefaultView -Property DateTime, SourceServer, DestinationServer, Name, Type, Status, Notes -TypeName MigrationObject
                } catch {
                    $message = $_.Exception.InnerException.InnerException.InnerException.Message
                    if (-not $message) { $message = $_.Exception.Message }
                    $copyAgentPropStatus.Status = "Failed"
                    $copyAgentPropStatus.Notes = $message
                    $copyAgentPropStatus | Select-DefaultView -Property DateTime, SourceServer, DestinationServer, Name, Type, Status, Notes -TypeName MigrationObject
                    Stop-Function -Message $message -Target $destinstance
                }
            }
        }
    }
    end {
        Test-DbaDeprecation -DeprecatedOn "1.0.0" -EnableException:$false -Alias Copy-SqlServerAgent
        Test-DbaDeprecation -DeprecatedOn "1.0.0" -EnableException:$false -Alias Copy-DbaSqlServerAgent
    }
}