Nagios Support Forum

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function Write-Log {
    [CmdletBinding()]
    param (
        [parameter(Mandatory=$true)][string]$Log,
        [parameter(Mandatory=$true)][ValidateSet('Debug', 'Info', 'Warning', 'Error')][string]$Severity,
        [parameter(Mandatory=$true)][string]$Message
    )
    $Now = Get-Date -Format 'yyyy-MM-dd HH:mm:ss,fff'
    $LocalScriptName = split-path $MyInvocation.PSCommandPath -Leaf
    if ($Log -eq 'Undefined') {
        Write-Debug "${Now}: ${LocalScriptName}: Info: LogServer is undefined."
    }
    elseif ($Log -eq 'Verbose') {
        Write-Verbose "${Now}: ${LocalScriptName}: ${Severity}: $Message"
    }
    elseif ($Log -eq 'Debug') {
        Write-Debug "${Now}: ${LocalScriptName}: ${Severity}: $Message"
    }
    elseif ($Log -eq 'Output') {
        Write-Host "${Now}: ${LocalScriptName}: ${Severity}: $Message"
    }
    elseif ($Log -match '^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])(?::(?<port>\d+))$' -or $Log -match "^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$") {
        $IpOrHost = $log.Split(':')[0]
        $Port = $log.Split(':')[1]
        if  ($IpOrHost -match '^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$') {
            $Ip = $IpOrHost
        }
        else {
            $Ip = ([System.Net.Dns]::GetHostAddresses($IpOrHost)).IPAddressToString
        }
        Try {
            $LocalHostname = ([System.Net.Dns]::GetHostByName((hostname.exe)).HostName).tolower()
            $JsonObject = (New-Object PSObject | 
                Add-Member -PassThru NoteProperty logsource $LocalHostname | 
                Add-Member -PassThru NoteProperty hostname $LocalHostname | 
                Add-Member -PassThru NoteProperty scriptname $LocalScriptName | 
                Add-Member -PassThru NoteProperty logtime $Now | 
                Add-Member -PassThru NoteProperty severity_label $Severity | 
                Add-Member -PassThru NoteProperty message $Message ) | 
                ConvertTo-Json
            $JsonString = $JsonObject -replace "`n",' ' -replace "`r",' '
            $Socket = New-Object System.Net.Sockets.TCPClient($Ip,$Port) 
            $Stream = $Socket.GetStream() 
            $Writer = New-Object System.IO.StreamWriter($Stream)
            $Writer.WriteLine($JsonString)
            $Writer.Flush()
            $Stream.Close()
            $Socket.Close()
        }
        catch {
            Write-Host "${Now}: ${LocalScriptName}: Error: Something went wrong while trying to send message to Logstash server `"$Log`"."
        }
        Write-Verbose "${Now}: ${LocalScriptName}: ${Severity}: Ip: $Ip Port: $Port JsonString: $JsonString"
    }
    elseif ($Log -match '^((([a-zA-Z]:)|(\\{2}\w+)|(\\{2}(?:(?:25[0-5]|2[0-4]\d|[01]\d\d|\d?\d)(?(?=\.?\d)\.)){4}))(\\(\w[\w ]*))*)') {
        if (Test-Path -Path $Log -pathType container){
            Write-Host "${Now}: ${LocalScriptName}: Error: Passed Path is a directory. Please provide a file."
            exit 1
        }
        elseif (!(Test-Path -Path $Log)) {
            try {
                New-Item -Path $Log -Type file -Force | Out-null	
            } 
            catch { 
                $Now = Get-Date -Format 'yyyy-MM-dd HH:mm:ss,fff'
                Write-Host "${Now}: ${LocalScriptName}: Error: Write-Log was unable to find or create the path `"$Log`". Please debug.."
                exit 1
            }
        }
        try {
            "${Now}: ${LocalScriptName}: ${Severity}: $Message" | Out-File -filepath $Log -Append   
        }
        catch {
            Write-Host "${Now}: ${LocalScriptName}: Error: Something went wrong while writing to file `"$Log`". It might be locked."
        }
    }
}

Code: Select all

tcp {
port => 7777
type => "nxlogs"
ssl_cacert => "/etc/pki/tls/certs/rootCA.pem"
Page 1
Copyright © 2010-2014 Nagios Enterprises, LLC
Revision 1.0 – February, 2016
Nagios Log Server – Sending nxlogs with SSL
Nagios Enterprises, LLC US: 1-888-NAGIOS-1 Web: www.nagios.com
P.O. Box 8154
Saint Paul, MN 55108
USA
Int'l: +1 651-204-9102 Email: [email protected]
Fax: +1 651-204-9103
ssl_cert => "/etc/pki/tls/certs/device-nls.crt"
ssl_key => "/etc/pki/tls/private/device-nls.key"
ssl_enable => true
format => 'json'
}

Code: Select all

[root@localhost logstash]# bin/plugin install logstash-input-http
Validating logstash-input-http
Installing logstash-input-http
Installation successful

Code: Select all

http {
   port => 8080
}

Code: Select all

curl -XPUT 'http://127.0.0.1:8080/test' -d 'testing...'

Code: Select all

http {
   port => 4040
   user => username
   password => "inputpassword"
   ssl => true
   keystore => "/usr/local/nagioslogserver/ssl/keystore.jks"
   keystore_password => "keystore"
}

Code: Select all

[root@localhost ssl]# curl -XPUT 'https://127.0.0.1:4040/test/' -d 'ssl testing'
curl: (60) Peer certificate cannot be authenticated with known CA certificates
More details here: http://curl.haxx.se/docs/sslcerts.html

curl performs SSL certificate verification by default, using a "bundle"
 of Certificate Authority (CA) public keys (CA certs). If the default
 bundle file isn't adequate, you can specify an alternate file
 using the --cacert option.
If this HTTPS server uses a certificate signed by a CA represented in
 the bundle, the certificate verification probably failed due to a
 problem with the certificate (it might be expired, or the name might
 not match the domain name in the URL).
If you'd like to turn off curl's verification of the certificate, use
 the -k (or --insecure) option.