DSCResources/MSFT_SPDistributedCacheService/MSFT_SPDistributedCacheService.psm1
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function Get-TargetResource { [CmdletBinding()] [OutputType([System.Collections.Hashtable])] param ( [Parameter(Mandatory = $true)] [System.String] $Name, [Parameter(Mandatory = $true)] [System.UInt32] $CacheSizeInMB, [Parameter(Mandatory = $true)] [System.String] $ServiceAccount, [Parameter(Mandatory = $true)] [System.Boolean] $CreateFirewallRules, [Parameter()] [ValidateSet("Present", "Absent")] [System.String] $Ensure = "Present", [Parameter()] [System.String[]] $ServerProvisionOrder, [Parameter()] [System.Management.Automation.PSCredential] $InstallAccount ) Write-Verbose -Message "Getting the cache host information" $result = Invoke-SPDscCommand -Credential $InstallAccount ` -Arguments $PSBoundParameters ` -ScriptBlock { $params = $args[0] $nullReturnValue = @{ Name = $params.Name Ensure = "Absent" } try { Use-CacheCluster -ErrorAction SilentlyContinue $cacheHost = Get-CacheHost -ErrorAction SilentlyContinue if ($null -eq $cacheHost) { return $nullReturnValue } $computerName = ([System.Net.Dns]::GetHostByName($env:computerName)).HostName $cachePort = ($cacheHost | Where-Object -FilterScript { $_.HostName -eq $computerName }).PortNo $cacheHostConfig = Get-AFCacheHostConfiguration -ComputerName $computerName ` -CachePort $cachePort ` -ErrorAction SilentlyContinue $windowsService = Get-CimInstance -Class Win32_Service -Filter "Name='AppFabricCachingService'" $firewallRule = Get-NetFirewallRule -DisplayName "SharePoint Distributed Cache" ` -ErrorAction SilentlyContinue return @{ Name = $params.Name CacheSizeInMB = $cacheHostConfig.Size ServiceAccount = $windowsService.StartName CreateFirewallRules = ($null -ne $firewallRule) Ensure = "Present" ServerProvisionOrder = $params.ServerProvisionOrder } } catch { return $nullReturnValue } } return $result } function Set-TargetResource { [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [System.String] $Name, [Parameter(Mandatory = $true)] [System.UInt32] $CacheSizeInMB, [Parameter(Mandatory = $true)] [System.String] $ServiceAccount, [Parameter(Mandatory = $true)] [System.Boolean] $CreateFirewallRules, [Parameter()] [ValidateSet("Present", "Absent")] [System.String] $Ensure = "Present", [Parameter()] [System.String[]] $ServerProvisionOrder, [Parameter()] [System.Management.Automation.PSCredential] $InstallAccount ) Write-Verbose -Message "Setting the cache host information" $CurrentState = Get-TargetResource @PSBoundParameters if ($Ensure -eq "Present") { Write-Verbose -Message "Adding the distributed cache to the server" if ($createFirewallRules -eq $true) { Write-Verbose -Message "Create a firewall rule for AppFabric" Invoke-SPDscCommand -Credential $InstallAccount -ScriptBlock { $icmpRuleName = "File and Printer Sharing (Echo Request - ICMPv4-In)" $icmpFirewallRule = Get-NetFirewallRule -DisplayName $icmpRuleName ` -ErrorAction SilentlyContinue if ($null -eq $icmpFirewallRule ) { New-NetFirewallRule -Name Allow_Ping -DisplayName $icmpRuleName ` -Description "Allow ICMPv4 ping" ` -Protocol ICMPv4 ` -IcmpType 8 ` -Enabled True ` -Profile Any ` -Action Allow } Enable-NetFirewallRule -DisplayName $icmpRuleName $spRuleName = "SharePoint Distributed Cache" $firewallRule = Get-NetFirewallRule -DisplayName $spRuleName ` -ErrorAction SilentlyContinue if ($null -eq $firewallRule) { New-NetFirewallRule -Name "SPDistCache" ` -DisplayName $spRuleName ` -Protocol TCP ` -LocalPort 22233-22236 ` -Group "SharePoint" } Enable-NetFirewallRule -DisplayName $spRuleName } Write-Verbose -Message "Firewall rule added" } Write-Verbose -Message ("Current state is '$($CurrentState.Ensure)' " + ` "and desired state is '$Ensure'") if ($CurrentState.Ensure -ne $Ensure) { Write-Verbose -Message "Enabling distributed cache service" Invoke-SPDscCommand -Credential $InstallAccount ` -Arguments @($PSBoundParameters, $MyInvocation.MyCommand.Source) ` -ScriptBlock { $params = $args[0] $eventSource = $args[1] if ($params.ContainsKey("ServerProvisionOrder")) { $serverCount = 0 $currentServer = $params.ServerProvisionOrder[$serverCount] while ($currentServer -ne $env:COMPUTERNAME) { $count = 0 $maxCount = 30 # Attempt to see if we can find the service with just the computer # name, or if we need to use the FQDN $si = Get-SPServiceInstance -Server $currentServer ` | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" } if ($null -eq $si) { $domain = (Get-CimInstance -ClassName Win32_ComputerSystem).Domain $currentServer = "$currentServer.$domain" } Write-Verbose "Waiting for cache on $currentServer" $serviceCheck = Get-SPServiceInstance -Server $currentServer ` | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" -and ` $_.Status -eq "Online" } while (($count -lt $maxCount) -and ($null -eq $serviceCheck)) { Write-Verbose -Message ("$([DateTime]::Now.ToShortTimeString()) - " + ` "Waiting for distributed cache to start " + ` "on $currentServer (waited $count of " + ` "$maxCount minutes)") Start-Sleep -Seconds 60 $serviceCheck = Get-SPServiceInstance -Server $currentServer ` | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" -and ` $_.Status -eq "Online" } $count++ } $serviceCheck = Get-SPServiceInstance -Server $currentServer ` | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" ` -and $_.Status -eq "Online" } if ($null -eq $serviceCheck) { Write-Warning -Message ("Server $currentServer is not running " + ` "distributed cache after waiting 30 " + ` "minutes. No longer waiting for this " + ` "server, progressing to next action") } $serverCount++ if ($ServerCount -ge $params.ServerProvisionOrder.Length) { $message = ("The server $($env:COMPUTERNAME) was not found in the " + ` "ServerProvisionOrder array of Distributed Cache server(s). " + ` "The server must be included in ServerProvisionOrder or Ensure " + ` "equal to Absent.") Add-SPDscEvent -Message $message ` -EntryType 'Error' ` -EventID 100 ` -Source $eventSource throw $message } $currentServer = $params.ServerProvisionOrder[$serverCount] } } Add-SPDistributedCacheServiceInstance try { Get-SPServiceInstance | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" } | Stop-SPServiceInstance -Confirm:$false } catch { # In SharePoint 2019, Stop-SPServiceInstance throws an exception if service # is not running on the server, try/catch handles this scenario Write-Verbose -Message ("Cannot stop an already stopped service. Continuing.") } $count = 0 $maxCount = 30 $serviceCheck = Get-SPServiceInstance | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" -and ` $_.Status -ne "Disabled" } while (($count -lt $maxCount) -and ($null -ne $serviceCheck)) { Write-Verbose -Message ("$([DateTime]::Now.ToShortTimeString()) - Waiting " + ` "for distributed cache to stop on all servers " + ` "(waited $count of $maxCount minutes)") Start-Sleep -Seconds 60 $serviceCheck = Get-SPServiceInstance | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" -and ` $_.Status -ne "Disabled" } $count++ } Update-SPDistributedCacheSize -CacheSizeInMB $params.CacheSizeInMB Get-SPServiceInstance | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" } | Start-SPServiceInstance $count = 0 $maxCount = 30 $serviceCheck = Get-SPServiceInstance | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" -and ` $_.Status -ne "Online" } while (($count -lt $maxCount) -and ($null -ne $serviceCheck)) { Write-Verbose -Message ("$([DateTime]::Now.ToShortTimeString()) - Waiting " + ` "for distributed cache to start on all servers " + ` "(waited $count of $maxCount minutes)") Start-Sleep -Seconds 60 $serviceCheck = Get-SPServiceInstance | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" -and ` $_.Status -ne "Online" } $count++ } $farm = Get-SPFarm $cacheService = $farm.Services | Where-Object -FilterScript { $_.Name -eq "AppFabricCachingService" } if ($cacheService.ProcessIdentity.ManagedAccount.Username -ne $params.ServiceAccount) { $cacheService.ProcessIdentity.CurrentIdentityType = "SpecificUser" $account = Get-SPManagedAccount -Identity $params.ServiceAccount $cacheService.ProcessIdentity.ManagedAccount = $account $cacheService.ProcessIdentity.Update() try { $cacheService.ProcessIdentity.Deploy() } catch { # In SharePoint 2019, ProcessIdentity.Deploy() may throw an exception Write-Verbose -Message ("An error has occurred while updating the " + ` "ServiceAccount. The change will be retried.") } } } } else { if ($CurrentState.ServiceAccount -ne $ServiceAccount.UserName) { Invoke-SPDscCommand -Credential $InstallAccount ` -Arguments $PSBoundParameters ` -ScriptBlock { $params = $args[0] $farm = Get-SPFarm $cacheService = $farm.Services | Where-Object -FilterScript { $_.Name -eq "AppFabricCachingService" } if ($cacheService.ProcessIdentity.ManagedAccount.Username -ne $params.ServiceAccount) { $cacheService.ProcessIdentity.CurrentIdentityType = "SpecificUser" $account = Get-SPManagedAccount -Identity $params.ServiceAccount $cacheService.ProcessIdentity.ManagedAccount = $account $cacheService.ProcessIdentity.Update() try { $cacheService.ProcessIdentity.Deploy() } catch { # In SharePoint 2019, ProcessIdentity.Deploy() may throw an exception Write-Verbose -Message ("An error has occurred while updating the " + ` "ServiceAccount. The change will be retried.") } } } } if ($CurrentState.CacheSizeInMB -ne $CacheSizeInMB) { Write-Verbose -Message "Updating distributed cache service cache size" Invoke-SPDscCommand -Credential $InstallAccount ` -Arguments $PSBoundParameters ` -ScriptBlock { $params = $args[0] Get-SPServiceInstance | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" } | Stop-SPServiceInstance -Confirm:$false $count = 0 $maxCount = 30 $serviceCheck = Get-SPServiceInstance | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" -and ` $_.Status -ne "Disabled" } while (($count -lt $maxCount) -and ($null -ne $serviceCheck)) { Write-Verbose -Message ("$([DateTime]::Now.ToShortTimeString()) - Waiting " + ` "for distributed cache to stop on all servers " + ` "(waited $count of $maxCount minutes)") Start-Sleep -Seconds 60 $serviceCheck = Get-SPServiceInstance | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" -and ` $_.Status -ne "Disabled" } $count++ } Update-SPDistributedCacheSize -CacheSizeInMB $params.CacheSizeInMB Get-SPServiceInstance | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" } | Start-SPServiceInstance $count = 0 $maxCount = 30 $serviceCheck = Get-SPServiceInstance | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" -and ` $_.Status -ne "Online" } while (($count -lt $maxCount) -and ($null -ne $serviceCheck)) { Write-Verbose -Message ("$([DateTime]::Now.ToShortTimeString()) - Waiting " + ` "for distributed cache to start on all servers " + ` "(waited $count of $maxCount minutes)") Start-Sleep -Seconds 60 $serviceCheck = Get-SPServiceInstance | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" -and ` $_.Status -ne "Online" } $count++ } } } } } else { Write-Verbose -Message "Removing distributed cache to the server" Invoke-SPDscCommand -Credential $InstallAccount -ScriptBlock { Remove-SPDistributedCacheServiceInstance $serviceInstance = Get-SPServiceInstance -Server $env:computername ` | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" } if ($null -eq $serviceInstance) { $domain = (Get-CimInstance -ClassName Win32_ComputerSystem).Domain $currentServer = "$($env:computername).$domain" $serviceInstance = Get-SPServiceInstance -Server $currentServer ` | Where-Object -FilterScript { $_.GetType().Name -eq "SPDistributedCacheServiceInstance" } } if ($null -ne $serviceInstance) { $serviceInstance.Delete() } } if ($CreateFirewallRules -eq $true) { Invoke-SPDscCommand -Credential $InstallAccount -ScriptBlock { $firewallRule = Get-NetFirewallRule -DisplayName "SharePoint Distribute Cache" ` -ErrorAction SilentlyContinue if ($null -ne $firewallRule) { Write-Verbose -Message "Disabling firewall rules." Disable-NetFirewallRule -DisplayName "SharePoint Distribute Cache" } } } Write-Verbose -Message "Distributed cache removed." } } function Test-TargetResource { [CmdletBinding()] [OutputType([System.Boolean])] param ( [Parameter(Mandatory = $true)] [System.String] $Name, [Parameter(Mandatory = $true)] [System.UInt32] $CacheSizeInMB, [Parameter(Mandatory = $true)] [System.String] $ServiceAccount, [Parameter(Mandatory = $true)] [System.Boolean] $CreateFirewallRules, [Parameter()] [ValidateSet("Present", "Absent")] [System.String] $Ensure = "Present", [Parameter()] [System.String[]] $ServerProvisionOrder, [Parameter()] [System.Management.Automation.PSCredential] $InstallAccount ) Write-Verbose -Message "Testing the cache host information" $PSBoundParameters.Ensure = $Ensure $CurrentValues = Get-TargetResource @PSBoundParameters Write-Verbose -Message "Current Values: $(Convert-SPDscHashtableToString -Hashtable $CurrentValues)" Write-Verbose -Message "Target Values: $(Convert-SPDscHashtableToString -Hashtable $PSBoundParameters)" if ($Ensure -eq "Present") { if ($PSBoundParameters.ContainsKey("ServiceAccount")) { if ($ServiceAccount -ne $CurrentValues.ServiceAccount) { $message = ("The parameter ServiceAccount is not in the desired " + ` "state. Actual: $($CurrentValues.ServiceAccount), " + ` "Desired: $ServiceAccount") Write-Verbose -Message $message Add-SPDscEvent -Message $message -EntryType 'Error' -EventID 1 -Source $MyInvocation.MyCommand.Source Write-Verbose -Message "Test-TargetResource returned false" return $false } } $result = Test-SPDscParameterState -CurrentValues $CurrentValues ` -Source $($MyInvocation.MyCommand.Source) ` -DesiredValues $PSBoundParameters ` -ValuesToCheck @("Ensure", ` "CreateFirewallRules", ` "CacheSizeInMB") } else { $result = Test-SPDscParameterState -CurrentValues $CurrentValues ` -Source $($MyInvocation.MyCommand.Source) ` -DesiredValues $PSBoundParameters ` -ValuesToCheck @("Ensure") } Write-Verbose -Message "Test-TargetResource returned $result" return $result } Export-ModuleMember -Function *-TargetResource |