UpdateManagement-Template.ps1


<#PSScriptInfo
 
.VERSION 1.1
 
.GUID 5a1ed24c-9099-4921-a135-bfc13213619b
 
.AUTHOR zachal
 
.COMPANYNAME Microsoft
 
.COPYRIGHT
 
.TAGS UpdateManagement, Automation
 
.LICENSEURI
 
.PROJECTURI
 
.ICONURI
 
.EXTERNALMODULEDEPENDENCIES
 
.REQUIREDSCRIPTS
 
.EXTERNALSCRIPTDEPENDENCIES
 
.RELEASENOTES
 
 
.PRIVATEDATA
 
#>


<#
 
.DESCRIPTION
 This is a template script for Update Management pre/post actions.
 It contains a basic list of common tasks and can be used to write your own scripts.
 
#>
 

<#
.SYNOPSIS
 Barebones script for Update Management Pre/Post
 
.DESCRIPTION
  This script is intended to be run as a part of Update Management Pre/Post scripts.
  It requires a RunAs account.
 
.PARAMETER SoftwareUpdateConfigurationRunContext
  This is a system variable which is automatically passed in by Update Management during a deployment.
#>


param(
    [string]$SoftwareUpdateConfigurationRunContext
)
#region BoilerplateAuthentication
#This requires a RunAs account
$ServicePrincipalConnection = Get-AutomationConnection -Name 'AzureRunAsConnection'

Add-AzureRmAccount `
    -ServicePrincipal `
    -TenantId $ServicePrincipalConnection.TenantId `
    -ApplicationId $ServicePrincipalConnection.ApplicationId `
    -CertificateThumbprint $ServicePrincipalConnection.CertificateThumbprint

$AzureContext = Select-AzureRmSubscription -SubscriptionId $ServicePrincipalConnection.SubscriptionID
#endregion BoilerplateAuthentication

Write-Output "Input: $SoftwareUpdateConfigurationRunContext"
#If you wish to use the run context, it must be converted from JSON
$context = ConvertFrom-Json  $SoftwareUpdateConfigurationRunContext
Write-Output "Context: $context" 
$RunId = $context.SoftwareUpdateConfigurationRunId
Write-Output "Run ID: $RunID"
#Configuration settings is another JSON and must be parsed again
$Settings = ConvertFrom-Json $context.SoftwareUpdateConfigurationSettings
Write-Output "List of settings: $Settings"
$VmIds = $Settings.AzureVirtualMachines
Write-Output "Azure VMs: $VmIds"


#Example: How to create and write to a variable using the pre-script:
<#
#Create variable named after this run so it can be retrieved
New-AzureRmAutomationVariable -ResourceGroupName $ResourceGroup –AutomationAccountName $AutomationAccount –Name $runId -Value "" –Encrypted $false
#Set value of variable
Set-AutomationVariable –Name $runId -Value $vmIds
#>


#Example: How to retrieve information from a variable set during the pre-script
<#
$variable = Get-AutomationVariable -Name $runId
#>