Automating a RabbitMQ Cluster Deployment on Windows with Powershell DSC

This one has been annoying me for a while, but I finally got to the bottom of it!
The solution is really very simple, but with not a lot of love for Rabbit on Windows and nothing I could find on using DSC, it took longer than it really should have.

Hope this helps someone

	configuration RabbitMQServers
	{
	Import-DscResource -ModuleName xPSDesiredStateConfiguration -Name MSFT_xPackageResource
	Import-DscResource -ModuleName PSDscResources
	node localhost {
	#Download and install Erlang
	xPackage InstallErlang {
	Ensure = 'Present'
	ProductId = ''
	Name = 'Erlang OTP 21 (10.0.1)'
	Arguments = "/S /D=c:\tools\erlang"
	Path = 'https://<yourstorage>/installs/otp_win64_21.0.1.exe'
	}
	#Hack to set up the RABBITMQ_BASE environment variable
	#Without this, it'll try to set it to the AppData folder of Local System which doesn't exist.
	Environment RabbitMQ_Base
	{
	Name = 'RABBITMQ_BASE'
	Value = 'C:\RABBITMQ'
	Ensure = 'Present'
	Path = $false
	Target = @('Process', 'Machine')
	}
	Script RabbitFiles {
	GetScript = {@{ Result = 'Hello' }}
	SetScript = {
	# Set Erlang Cookie
	$erlangcookiefile = "c:\windows\system32\config\systemprofile\.erlang.cookie"
	$erlangcookievalue = "XXXXXXXXXXXXXXXXXXXX"
	Set-Content -Path $erlangcookiefile -Value $erlangcookievalue -Force
	$rabbitpath = "C:\RABBITMQ"
	md $rabbitpath -Force
	# Set Rabbit Config
	$rabbitconffile = "$rabbitpath\rabbitmq.conf"
	$rabbitconffiledata = @"
	cluster_formation.peer_discovery_backend = rabbit_peer_discovery_classic_config
	cluster_formation.classic_config.nodes.1 = rabbit@$rab01
	cluster_formation.classic_config.nodes.2 = rabbit@$rab02
	cluster_formation.classic_config.nodes.3 = rabbit@$rab03
	cluster_formation.node_type = disc
	cluster_partition_handling = pause_minority
	"@
	Set-Content -Path $rabbitconffile -Value $rabbitconffiledata -force
	# Set Rabbit Plugins
	$pluginfile = "$rabbitpath\enabled_plugins"
	$pluginfiledata = '[rabbitmq_management].'
	Set-Content -Path $pluginfile -Value $pluginfiledata -Force
	}
	TestScript = {
	Test-Path "f:\rabbitmq\rabbitmq.conf"
	}
	DependsOn = @("[xPackage]InstallErlang")
	}
	#Download and install RabbitMQ
	xPackage InstallRabbitMQ {
	Ensure = 'Present'
	ProductId = ''
	Name = 'RabbitMQ Server 3.7.7'
	Arguments = "/S"
	Path = 'https://<yourstorage>/installs/rabbitmq-server-3.7.7.exe'
	DependsOn = @("[xPackage]InstallErlang","[Environment]RabbitMQ_Base","[Script]RabbitFiles")
	}
	}
	}

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