73 lines
2.7 KiB
PowerShell
73 lines
2.7 KiB
PowerShell
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function Start-ServicesByTier {
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<#
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.SYNOPSIS
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Starts all services that fall under the Tier parameter
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.PARAMETER Tier
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Number specifing the tier of services
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.PARAMETER IncludeLowerTiers
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Also include services from all tiers lower than the provided tier.
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(With this switch present, -Tier 0 starts only tier 0 service names, 1 starts both tier 0 and 1 services, 2 starts
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tier 2, 1, and 0, ad infinitum.) Values provided above the number of defined tiers simply start all available tiered services.
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#>
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[CmdletBinding()]
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param(
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[Parameter(Mandatory = $true)]
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[ValidateRange(0, [int]::MaxValue)]
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[int]$Tier,
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[Parameter(Mandatory = $false)]
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[switch]$IncludeLowerTiers
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)
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$hostname = $env:COMPUTERNAME
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$results = @{
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Hostname = $hostname
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HasError = $false
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ReturnValue = @()
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}
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$maxTier = $Tier
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if ($IncludeLowerTiers) {
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$minTier = 0
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} else {
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$minTier = $Tier
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}
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# Assigning $minTier to 0 if the $IncludeLowerTiers param is enabled, otherwise matching up the $min/$maxTier params to only iterate through one tier
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for ($i = $minTier; $i -le $maxTier; $i++) {
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# Because I want to make my conditionals more readable
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$isStartingTier0 = $i -eq 0
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$stoppedServicesInTier = @()
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try {
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$stoppedServicesInTier = @()
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$servicesByTier = (Get-ServicesByTier -Tier $i)
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foreach ($service in $servicesByTier) {
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$serviceStatus = (Get-Service $service -ErrorAction SilentlyContinue).Status -eq "Stopped"
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if ($serviceStatus) {
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$stoppedServicesInTier += $service
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}
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}
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$hasStoppedServicesInTier = -not (Test-IsCollectionNullOrEmpty -Collection $stoppedServicesInTier)
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} catch {
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Write-Warning $_
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} finally {
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if ($hasStoppedServicesInTier) {
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$startServicesResults += Start-ServicesInParallel -ServiceNamestoStart $stoppedServicesInTier -ReturnResults
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$results.ReturnValue = $startServicesResults
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$results.HasError = -not (Test-IsCollectionNullOrEmpty -Collection $results.ReturnValue)
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} else {
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Write-Host "All services in Tier $i were already running"
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$results.ReturnValue = @()
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}
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}
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if ($results.HasError -and $isStartingTier0) {
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# when Tier 0 (Subscription,Broker) fails to start, return results immediately so we can fail the job
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Write-Warning "Exceptions were thrown trying to start serivces in Tier $i"
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Write-Warning "Returning a list of Exceptions or ErrorRecords"
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}
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return $results
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}
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}
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