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#!powershell
# Copyright: 2019, rnsc(@rnsc) <github@rnsc.be>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt
#AnsibleRequires -CSharpUtil Ansible.Basic
#AnsibleRequires -OSVersion 6.3
$spec = @{
options = @{
drive_letter = @{ type = "str"; required = $true }
state = @{ type = "str"; choices = "absent", "present"; default = "present"; }
settings = @{
type = "dict"
required = $false
options = @{
minimum_file_size = @{ type = "int"; default = 32768 }
minimum_file_age_days = @{ type = "int"; default = 2 }
no_compress = @{ type = "bool"; required = $false; default = $false }
optimize_in_use_files = @{ type = "bool"; required = $false; default = $false }
verify = @{ type = "bool"; required = $false; default = $false }
}
}
}
supports_check_mode = $true
}
$module = [Ansible.Basic.AnsibleModule]::Create($args, $spec)
$drive_letter = $module.Params.drive_letter
$state = $module.Params.state
$settings = $module.Params.settings
$module.Result.changed = $false
$module.Result.reboot_required = $false
$module.Result.msg = ""
function Set-DataDeduplication($volume, $state, $settings, $dedup_job) {
$current_state = 'absent'
try {
$dedup_info = Get-DedupVolume -Volume "$($volume.DriveLetter):"
} catch {
$dedup_info = $null
}
if ($dedup_info.Enabled) {
$current_state = 'present'
}
if ( $state -ne $current_state ) {
if( -not $module.CheckMode) {
if($state -eq 'present') {
# Enable-DedupVolume -Volume <String>
Enable-DedupVolume -Volume "$($volume.DriveLetter):"
} elseif ($state -eq 'absent') {
Disable-DedupVolume -Volume "$($volume.DriveLetter):"
}
}
$module.Result.changed = $true
}
if ($state -eq 'present') {
if ($null -ne $settings) {
Set-DataDedupJobSettings -volume $volume -settings $settings
}
}
}
function Set-DataDedupJobSettings ($volume, $settings) {
try {
$dedup_info = Get-DedupVolume -Volume "$($volume.DriveLetter):"
} catch {
$dedup_info = $null
}
ForEach ($key in $settings.keys) {
# See Microsoft documentation:
# https://docs.microsoft.com/en-us/powershell/module/deduplication/set-dedupvolume?view=win10-ps
$update_key = $key
$update_value = $settings.$($key)
# Transform Ansible style options to Powershell params
$update_key = $update_key -replace('_', '')
if ($update_key -eq "MinimumFileSize" -and $update_value -lt 32768) {
$update_value = 32768
}
$current_value = ($dedup_info | Select-Object -ExpandProperty $update_key)
if ($update_value -ne $current_value) {
$command_param = @{
$($update_key) = $update_value
}
# Set-DedupVolume -Volume <String>`
# -NoCompress <bool> `
# -MinimumFileAgeDays <UInt32> `
# -MinimumFileSize <UInt32> (minimum 32768)
if( -not $module.CheckMode ) {
Set-DedupVolume -Volume "$($volume.DriveLetter):" @command_param
}
$module.Result.changed = $true
}
}
}
# Install required feature
$feature_name = "FS-Data-Deduplication"
if( -not $module.CheckMode) {
$feature = Install-WindowsFeature -Name $feature_name
if ($feature.RestartNeeded -eq 'Yes') {
$module.Result.reboot_required = $true
$module.FailJson("$feature_name was installed but requires Windows to be rebooted to work.")
}
}
$volume = Get-Volume -DriveLetter $drive_letter
Set-DataDeduplication -volume $volume -state $state -settings $settings -dedup_job $dedup_job
$module.ExitJson()
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