I'm using terraform and chef to create multiple aws ebs volumes and attach them to an EC2 instance.
The problem is I want to be able to give each ebs volume a specific windows drive letter. The problem is when the EC2 instance is instantiated window just gives it sequential drive letters (D,E,F,etc)
Some of the drives are identically sized so I can't necessarily rename based on drive size. Does anyone know of a way to do this with terraform or chef. My google foo isn't finding anything.
Certainly this must come up for other folks?
I did see reference to using EC2Config Windows GUI to set them but the whole point is to automate the process, as ultimately I want chef to install SQL server and certain data is expected to go on certain drive letters.
This seems to work - although I do wonder if there isn't an easier way.
function Convert-SCSITargetIdToDeviceName{param([int]$SCSITargetId)If ($SCSITargetId -eq 0) { return "/dev/sda1"}$deviceName = "xvd"If ($SCSITargetId -gt 25) { $deviceName += [char](0x60 + [int]($SCSITargetId / 26))}$deviceName += [char](0x61 + $SCSITargetId % 26)return $deviceName}Get-WmiObject -Class Win32_DiskDrive | ForEach-Object {$DiskDrive = $_$Volumes = Get-WmiObject -Query "ASSOCIATORS OF {Win32_DiskDrive.DeviceID='$($DiskDrive.DeviceID)'} WHERE AssocClass=Win32_DiskDriveToDiskPartition" | ForEach-Object { $DiskPartition = $_ Get-WmiObject -Query "ASSOCIATORS OF {Win32_DiskPartition.DeviceID='$($DiskPartition.DeviceID)'} WHERE AssocClass=Win32_LogicalDiskToPartition"}If ($DiskDrive.PNPDeviceID -like "*PROD_PVDISK*") { $BlockDeviceName = Convert-SCSITargetIdToDeviceName($DiskDrive.SCSITargetId) If ($BlockDeviceName -eq "xvdf") { $drive = gwmi win32_volume -Filter "DriveLetter = '$($Volumes.DeviceID)'"; Set-WmiInstance -input $drive -Arguments @{DriveLetter="D:"; Label="SQL Data"} }; If ($BlockDeviceName -eq "xvdg") { $drive = gwmi win32_volume -Filter "DriveLetter = '$($Volumes.DeviceID)'"; Set-WmiInstance -input $drive -Arguments @{DriveLetter="L:"; Label="SQL Logs"} }; If ($BlockDeviceName -eq "xvdh") { $drive = gwmi win32_volume -Filter "DriveLetter = '$($Volumes.DeviceID)'"; Set-WmiInstance -input $drive -Arguments @{DriveLetter="R:"; Label="Report Data"} }; If ($BlockDeviceName -eq "xvdi") { $drive = gwmi win32_volume -Filter "DriveLetter = '$($Volumes.DeviceID)'"; Set-WmiInstance -input $drive -Arguments @{DriveLetter="T:"; Label="Temp DB"} }; If ($BlockDeviceName -eq "xvdj") { $drive = gwmi win32_volume -Filter "DriveLetter = '$($Volumes.DeviceID)'"; Set-WmiInstance -input $drive -Arguments @{DriveLetter="M:"; Label="MSDTC"} }; If ($BlockDeviceName -eq "xvdk") { $drive = gwmi win32_volume -Filter "DriveLetter = '$($Volumes.DeviceID)'"; Set-WmiInstance -input $drive -Arguments @{DriveLetter="B:"; Label="Backups"} };} ElseIf ($DiskDrive.PNPDeviceID -like "*PROD_AMAZON_EC2_NVME*") { $BlockDeviceName = Get-EC2InstanceMetadata "meta-data/block-device-mapping/ephemeral$($DiskDrive.SCSIPort - 2)" If ($BlockDeviceName -eq "xvdf") { $drive = gwmi win32_volume -Filter "DriveLetter = '$($Volumes.DeviceID)'"; Set-WmiInstance -input $drive -Arguments @{DriveLetter="D:"; Label="SQL Data"} }; If ($BlockDeviceName -eq "xvdg") { $drive = gwmi win32_volume -Filter "DriveLetter = '$($Volumes.DeviceID)'"; Set-WmiInstance -input $drive -Arguments @{DriveLetter="L:"; Label="SQL Logs"} }; If ($BlockDeviceName -eq "xvdh") { $drive = gwmi win32_volume -Filter "DriveLetter = '$($Volumes.DeviceID)'"; Set-WmiInstance -input $drive -Arguments @{DriveLetter="R:"; Label="Report Data"} }; If ($BlockDeviceName -eq "xvdi") { $drive = gwmi win32_volume -Filter "DriveLetter = '$($Volumes.DeviceID)'"; Set-WmiInstance -input $drive -Arguments @{DriveLetter="T:"; Label="Temp DB"} }; If ($BlockDeviceName -eq "xvdj") { $drive = gwmi win32_volume -Filter "DriveLetter = '$($Volumes.DeviceID)'"; Set-WmiInstance -input $drive -Arguments @{DriveLetter="M:"; Label="MSDTC"} }; If ($BlockDeviceName -eq "xvdk") { $drive = gwmi win32_volume -Filter "DriveLetter = '$($Volumes.DeviceID)'"; Set-WmiInstance -input $drive -Arguments @{DriveLetter="B:"; Label="Backups"} };} Else { write-host "Couldn't find disks";}}