ES1_MasterRoleUtils.psm1
|
<# .NOTES =========================================================================== Copyright � 2018 Dell Inc. or its subsidiaries. All Rights Reserved. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 =========================================================================== THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE. IF THIS CODE AND INFORMATION IS MODIFIED, THE ENTIRE RISK OF USE OR RESULTS IN CONNECTION WITH THE USE OF THIS CODE AND INFORMATION REMAINS WITH THE USER. .DESCRIPTION Functions for inspecting or getting "Master" machine related stuff #> #requires -Version 4 function Get-ES1MasterInstalled { <# .SYNOPSIS Returns a list of servers with the Master component installed on it and the version number installed. .DESCRIPTION Returns a list of servers with the Master component installed on it and the version number installed. Almost always there should only be one and only one of these found. .PARAMETER [string[]]$ComputerName A list of server to check .OUTPUTS .EXAMPLE #> [CmdletBinding()] PARAM ( [Parameter( ValueFromPipeLine=$true, ValueFromPipeLineByPropertyName=$true)] [string[]]$ComputerName = $env:computername, $Credential = $remCreds ) BEGIN{} PROCESS { $results=@() # # Process each machine one at a time so we can handle the errors nicely... # $cntIds=$ComputerName.Count $i=0 foreach($server in $ComputerName) { try { $reg = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey('LocalMachine', $server) # Try the 64 bit location first as 64 bit OS's are most common these days. $keypath = 'SOFTWARE\Wow6432Node\EMC\SourceOne\Versions' $regkey = $reg.OpenSubkey($keypath) if ($regkey -eq $null) { $keypath = 'SOFTWARE\EMC\SourceOne\Versions' $regkey = $reg.OpenSubkey($keypath) } if ($regkey -ne $null) { # # Get the Master+ attribute, cause this info isnt in a database anywhere... # $valuename ='Master+' $readvalue = $regkey.GetValue($valuename) if ($readvalue -ne $null) { $props = [ordered] @{'ComputerName'=$server;'Version'=''} $ismaster = New-object -TypeName PSObject -Prop $props $ismaster.Version=$readvalue $results += $ismaster Write-Debug "$server`t$regkey`t$valuename`t$readvalue" } } $reg.Close() } catch { Write-Error "Error Reading registry on server : $($server)" Write-Error $_ } } # Return the value from the registry... $results } END {} } function Test-IsOnS1Master { <# .SYNOPSIS Determines if running on the S1 Master machine by inspecting the Windows registry .DESCRIPTION Determines if running on the S1 Master machine by inspecting the Windows registry .EXAMPLE $onMaster = Test-IsOnS1Master #> [CmdletBinding()] param() begin { [bool] $IsMasterMachine = $false } process { $S1RegVersions = Get-ES1RegLocation if ($S1RegVersions.length -gt 0) { # Append the "versions" branch $S1RegVersions=$S1RegVersions+'Versions' } $MasterInstalled = Get-ItemProperty -Path $S1RegVersions -Name "Master+" -ErrorAction SilentlyContinue if ( $MasterInstalled ) { $IsMasterMachine = $true } $IsMasterMachine } end {} } Export-ModuleMember -Function * -Alias * |