Get-ClusterLogErrors

Extract specific error entries from today's WSFC Cluster Log

function Get-ClusterLogErrors {
    
    [CmdletBinding()]    
    param (
        [Parameter(Mandatory, ValueFromPipeline)]
        [string]$servername
    )

    begin {
        $filePath = "\\$($servername)\c$\Windows\Cluster\Reports\Cluster.log"

        if (!(Test-Path $filePath)) {
            Write-Output "Unable to connect to path [$($filePath)]"
            Write-Output 'Terminating process.'
            break;
        }
    }

    process {
        # SET dateString TO TODAY'S DATE (ie. 2017/05/03)
        $dateString = (get-date).ToString('yyyy/MM/dd')
        
        # ONLY LOOK FOR ERR ENTRIES
        $errorString = 'ERR'

        try {
            # -join "`n" This needs to be in place in order for the following replace function properly convert line breaks to HTML
            # -replace("`n","<br />") Added to preserve line breaks for HTML output
            [string]$results = @(Get-Content -Path $filePath | Select-String $dateString | Select-String $errorString -CaseSensitive | Select-String -pattern 'NODE', 'rcm', 'RES', 'quorum', 'QUORUM' -CaseSensitive) -join "`n" -replace("`n","<br/>") #, 'mscs', 'ClNet'
        }
        
        catch {
            Write-Output $_.Exception.Message
            Write-Output 'Terminating process.'
            break;
        }
    }

    end {
        #SEND NOTIFICATION 
        if ($results.Length -gt 0) {
        
            # SET FONT FAMILY AND FONT SIZE 
            $body = "<span style='font-family:Courier New;font-size:10pt'>" + $results + "</span>"
            
            # SMTP DETAILS
            $from = 'Do Not Reply<do-not-reply@domain.com>'
            $to = 'samson@domain.com'
            $sub = "$($servername) CLUSTER LOG ERROR REPORT - " + (get-date).ToString("yyyy-MM-dd")
            $priority = 'High' #'High or Low'
            $PSEmailServer = 'relay.domain.com'
            $port = 25

            try {
                # SEND MESSAGE
                Send-MailMessage -From $from -To $to -Body $body -Subject $sub -Priority $priority -Port $port -BodyAsHtml -ErrorAction Stop
            }
            
            catch {
                Write-Output $_.Exception.Message
                Write-Output 'Terminating process.'
                break;            
            }            
        }   
    }
}
# USAGE EXAMPLE:
Get-ClusterLogErrors 'servername'