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backup-zenlb.ps1
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backup-zenlb.ps1
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<#
.SYNOPSIS
Create ZenLoadBalancer Backup and Download
.DESCRIPTION
Based on the parameters saved in the .ps1, each Zen Load Balancer will be contacted to trigger a backup and download and save the backup file(s) by host(s) and date/time.
Optionally: Log, Email Notify, Purge Old Backups
.NOTES
Author : Justin Bennett
Date : 2014-09-26
Contact : http://www.allthingstechie.net
Revision : v1.1
History : v1.0 written for Zen 3.03
v1.1 added support for Zen 3.05
References : Allow untrusted SSL - http://blogs.technet.com/b/bshukla/archive/2010/04/12/ignoring-ssl-trust-in-powershell-system-net-webClient.aspx
#>
#uservariables
#
$scriptRoot = $pwd
#$scriptRoot = "D:\ZenLoadBalancers\batch\"
$backupJobs = @{}
$backupJobs[0] = @{}
$backupJobs[0]["backupName"] = "zenlb1"
$backupJobs[0]["backupRoot"] = "$($pwd)\"
#$backupJobs[0]["backupRoot"] = "D:\ZenLoadBalancers\backups\"
$backupJobs[0]["hostIP"] = "192.168.0.11:444"
$backupJobs[0]["username"] = "admin"
$backupJobs[0]["password"] = "pass"
$backupJobs[0]["domain"] = ""
#$backupJobs[1] = @{}
#$backupJobs[1]["backupName"] = "zenlb2"
#$backupJobs[1]["backupRoot"] = "D:\ZenLoadBalancers\backups\"
#$backupJobs[1]["hostIP"] = "192.168.0.12:444"
#$backupJobs[1]["username"] = "admin"
#$backupJobs[1]["password"] = "pass"
#$backupJobs[1]["domain"] = ""
#$backupJobs[2] = @{}
#$backupJobs[2]["backupName"] = "zenlb3"
#$backupJobs[2]["backupRoot"] = "D:\ZenLoadBalancers\backups\"
#$backupJobs[2]["hostIP"] = "192.168.0.13:444"
#$backupJobs[2]["username"] = "admin"
#$backupJobs[2]["password"] = "pass"
#$backupJobs[2]["domain"] = ""
#$backupJobs[3] = @{}
#$backupJobs[3]["backupName"] = "zenlb4"
#$backupJobs[3]["backupRoot"] = "D:\ZenLoadBalancers\backups\"
#$backupJobs[3]["hostIP"] = "192.168.0.14:444"
#$backupJobs[3]["username"] = "admin"
#$backupJobs[3]["password"] = "pass"
#$backupJobs[3]["domain"] = ""
$purgeOldBackups = $false
#$purgeOldBackups = $true
$purgeDaysToKeep = 1
$purgeRoot = "."
#$purgeRoot = "D:\ZenLoadBalancers\backups\"
$createEmail = $false
#$createEmail = $true
$subjectTitle = "Backup Zen Load Balancers - %status%"
$emailFrom = "task-computer@local.domain"
#$emailTo = "admin1@email.com", "admin2@email.com"
$emailTo = "admin1@email.com"
$smtpServer = "smtp.local.domain"
$createlog = $true
$logRoot = $pwd
#$logRoot = "D:\ZenLoadBalancers\log\"
#$debug = $true
$debug = $false
#runtime variables
#
$scriptName = $MyInvocation.MyCommand.Name
$scriptpath = $Myinvocation.Mycommand.Path
$start = get-date
$log = New-Object -TypeName "System.Text.StringBuilder" "";
[void]$log.appendline((("Starting Script - ")+($start)))
if ($debug) { write-host "Starting Script - $($start)" }
$status = @{}
function writeLog {
$exist = Test-Path "$($logRoot)\$($scriptName).log"
$logFile = New-Object System.IO.StreamWriter("$($logRoot)\$($scriptName).log", $exist)
$logFile.write($log)
$logFile.close()
}
function sendEmail {
try {
[void]$log.appendline((("Emailing Results - ")+(get-date)))
if ($debug) { write-host "Emailing Results" }
$body = "<style type=""text/css"">
span { font-family: Calibri, verdana,arial,sans-serif; }
table {
font-family: Calibri, verdana,arial,sans-serif;
color:#333333;
border-width: 1px;
border-color: #666666;
border-collapse: collapse;
}
table th {
border-width: 1px;
padding: 8px;
border-style: solid;
border-color: #666666;
}
table td {
border-width: 1px;
padding: 8px;
border-style: solid;
border-color: #666666;
}
.footer { font-size: 10pt; }
</style>
<span>"
$logHTML = $log.ToString() -replace "`n","<br>"
$footer = "<p class=""footer"">[$($scriptpath)[$(get-date (get-item $scriptpath).lastwritetime -format G)] launched from $($env:computername) as $($env:username) at $($start)]</p></span>"
#Format the output
[string]$emailBody = [string]$body, [string]$logHTML, [string]$footer
#Send the report
#Needed to send without using default creditianls of the service or computer running the script
$s = New-Object System.Security.SecureString
$creds = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList "NT AUTHORITY\ANONYMOUS LOGON", $S
Send-MailMessage -To $emailTo -From $emailFrom -Subject "$($subjectTitle) - $($scriptName)" -BodyAsHtml $emailBody -SmtpServer $smtpServer -Credential $creds
} catch { [void]$log.appendline((("Error emailing log data - ")+$_.Exception.Message+(" ")+(get-date))); }
}
function createBackup {
Param(
[Parameter(Mandatory=$true)]
[string]$backupName,
[string]$backupRoot,
[string]$hostIP,
[string]$username,
[string]$password,
[string]$domain
) #end param
$backupFile = "backup-$($backupName).tar.gz"
$createBackupURL = "https://$($hostIP)/index.cgi?name=$($backupName)&id=3-5&action=Create+Backup"
$getBackupURL = "https://$($hostIP)/backup/$($backupFile)"
#initiate webclient with ignoring untrusted SSL
$netAssembly = [Reflection.Assembly]::GetAssembly([System.Net.Configuration.SettingsSection])
if($netAssembly)
{
$bindingFlags = [Reflection.BindingFlags] "Static,GetProperty,NonPublic"
$settingsType = $netAssembly.GetType("System.Net.Configuration.SettingsSectionInternal")
$instance = $settingsType.InvokeMember("Section", $bindingFlags, $null, $null, @())
if($instance)
{
$bindingFlags = "NonPublic","Instance"
$useUnsafeHeaderParsingField = $settingsType.GetField("useUnsafeHeaderParsing", $bindingFlags)
if($useUnsafeHeaderParsingField)
{
$useUnsafeHeaderParsingField.SetValue($instance, $true)
}
}
}
$webClient = new-object System.Net.webClient
$webClient.Credentials = new-object System.Net.NetworkCredential($username, $password, $domain)
[System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$true}
#Attempt to create backup
try {
$webpage = $webClient.DownloadString($createBackupURL)
} catch { }
#Version
if (($webpage.Split("`n"))[36].contains("3.05")) {
#version 3.05
$lineChkBk = 94
} else {
#v3.03 or ???
$lineChkBk = 92
}
#Check created backup
if (($webpage.Split("`n"))[$lineChkBk].Contains("SUCCESS!")) {
$bkStatus = $true
} else {
#Check created backup error
$bkStatus = $false
$message = "Checking if backup was created failed`nHost Output:`n"+($webpage.Split("`n"))[$lineChkBk] + "`n" + ($webpage.Split("`n"))[93]
}
# last Pull backup details
#
#parse backup output
$content = (($webpage.Split("`n"))[$lineChkBk])
$content -match "<td>(?<file>backup.[A-Z0-9 _.%+-].gz)</td><td>(?<date>.*[0-9]+)</td>"
$files = (((($content -split "<tbody><tr>")[1] -replace "<script language=""javascript"">") -replace "<td>") -replace "</tr><tr>") -split "</td>"
$line = 0
#search for our backup
Do {
if ($files[$line] -eq $backupFile) {
$line
$backupFilename = $files[$line]
$line++
$line
$backupFiledate = $files[$line]
}
$line++
} while (!($files[$line] -eq $null))
#verify backup output parsed
if (test-path variable:backupFilename) {
$tmpDate= get-date ($backupFiledate.Substring(4,6)+", "+$backupFiledate.Substring(20,4)+", "+$backupFiledate.Substring(11,9))
#check backup creation date newer than start failed - +5 min for delta
if ((get-date $tmpDate.AddMinutes(+5)) -ge $start) {
#download the backup file
$tmpFilename = $backupRoot+(get-date $tmpDate -Format "yyyyMMdd_HHmmss-")+$backupFile
try { $webClient.DownloadFile($getBackupURL,$tmpFilename); } catch {}
#test file download
if (test-path -path $tmpFilename ) {
$message = "Backup triggered and the backup file was saved to $($tmpFilename)"
$bkStatus = $true
} else {
#test file download failed
$message ="Check $($tmpFilenam) failed - Backup file did not download"
$bkStatus = $false
}
} else {
#check backup creation date newer than start failed
$message ="Backup date not newer than the start of this runtime"
$bkStatus = $false
}
} else {
#verify backup output parsed failed
$message ="Could not locate the backup filename on output for $($createBackupURL)"
$bkStatus = $false
}
#convert bkstatus to Success or Failure for readable output
if ($bkstatus) {
$bkstatus = "Success"
$status["Success"]++
} else {
$bkstatus = "Failure"
$status["Failure"]++
}
[void]$log.appendline(((" - Backup $($bkstatus): $($message) - ")+(get-date)))
if ($debug) { write-host "Backup $($bkstatus): $($message)"; }
}
function purgeOldFiles {
Param(
[Parameter(Mandatory=$true)]
[string]$root,
[string]$filename,
[int]$daysToKeep
) #end param
Get-ChildItem "$($root)$($filename)" | ? {((get-date $_.LastWriteTime).AddDays($daysToKeep) -le (Get-date)) } | % {
[void]$log.appendline(((" - Purging Old File, Filename: $($_), Date: $($_.LastWriteTime) - ")+(get-date)))
if ($debug) { write-host "Purging Old File, Filename: $($_), Date: $($_.LastWriteTime)" }
remove-item $_
}
}
#run the backup jobs
foreach ($backup in $backupjobs.keys) {
createBackup -backupName $backupJobs[$backup]["backupName"] -backupRoot $backupJobs[$backup]["backupRoot"] -hostIP $backupJobs[$backup]["hostIP"] -username $backupJobs[$backup]["username"] -password $backupJobs[$backup]["password"] -domain $backupJobs[$backup]["domain"]
}
#purge old backup files
if ($purgeOldBackups) { purgeOldFiles -root $purgeRoot -filename "*.tar.gz" -daysToKeep $purgeDaysToKeep; }
[void]$log.appendline((("Ending Script - ")+(get-date)))
if ($debug) { write-host "Ending Script - $(get-date)" }
#update e-mail subject to add statuses
if ($status["Success"] -gt 0) {
if ($status["Failure"] -gt 0) { $tmpOutput = "Failures: "+$status["Failure"]+", Successes: "+$status["Success"];}
else { $tmpOutput = "Successes: "+$status["Success"]; }
} else { $tmpOutput = "Failures: "+$status["Failure"] ;}
$subjectTitle = $subjectTitle -replace "%status%", $tmpOutput
if ($createEmail) { sendEmail; }
if ($createLog) { writeLog; }