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initial commit of win_domain_membership module (#22027)
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Matt Davis
GitHub
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2 changed files with 380 additions and 0 deletions
279
lib/ansible/modules/windows/win_domain_membership.ps1
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279
lib/ansible/modules/windows/win_domain_membership.ps1
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#!powershell
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# (c) 2017, Red Hat, Inc.
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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# WANT_JSON
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# POWERSHELL_COMMON
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Set-StrictMode -Version 2
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$ErrorActionPreference = "Stop"
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$log_path = $null
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Function Write-DebugLog {
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Param(
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[string]$msg
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)
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$DebugPreference = "Continue"
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$date_str = Get-Date -Format u
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$msg = "$date_str $msg"
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Write-Debug $msg
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if($log_path) {
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Add-Content $log_path $msg
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}
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}
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Function Get-DomainMembershipMatch {
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Param(
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[string] $dns_domain_name
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)
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# FUTURE: add support for NetBIOS domain name?
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# this requires the DC to be accessible; "DC unavailable" is indistinguishable from "not joined to the domain"...
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Try {
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Write-DebugLog "calling GetComputerDomain()"
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$current_dns_domain = [System.DirectoryServices.ActiveDirectory.Domain]::GetComputerDomain().Name
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$domain_match = $current_dns_domain -eq $dns_domain_name
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Write-DebugLog ("current domain {0} matches {1}: {2}" -f $current_dns_domain, $dns_domain_name, $domain_match)
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return $domain_match
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}
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Catch [System.DirectoryServices.ActiveDirectory.ActiveDirectoryObjectNotFoundException] {
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Write-DebugLog "not currently joined to a reachable domain"
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return $false
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}
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}
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Function Create-Credential {
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Param(
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[string] $cred_user,
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[string] $cred_pass
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)
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$cred = New-Object System.Management.Automation.PSCredential($cred_user, $($cred_pass | ConvertTo-SecureString -AsPlainText -Force))
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return $cred
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}
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Function Get-HostnameMatch {
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Param(
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[string] $hostname
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)
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# Add-Computer will validate the "shape" of the hostname- we just care if it matches...
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$hostname_match = $env:COMPUTERNAME -eq $hostname
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Write-DebugLog ("current hostname {0} matches {1}: {2}" -f $env:COMPUTERNAME, $hostname, $hostname_match)
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return $hostname_match
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}
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Function Is-DomainJoined {
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return (Get-WmiObject Win32_ComputerSystem).PartOfDomain
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}
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Function Join-Domain {
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Param(
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[string] $dns_domain_name,
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[string] $new_hostname,
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[string] $domain_admin_user,
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[string] $domain_admin_password
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)
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Write-DebugLog ("Creating credential for user {0}" -f $domain_admin_user)
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$domain_cred = Create-Credential $domain_admin_user $domain_admin_password
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$add_args = @{
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ComputerName="."
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Credential=$domain_cred
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DomainName=$dns_domain_name
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Force=$null
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}
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Write-DebugLog "adding hostname set arg to Add-Computer args"
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If($new_hostname) {
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$add_args["NewName"] = $new_hostname
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}
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Write-DebugLog "calling Add-Computer"
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$add_result = Add-Computer @add_args
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Write-DebugLog ("Add-Computer result was \n{0}" -f $add_result | Out-String)
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}
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Function Get-Workgroup {
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return (Get-WmiObject Win32_ComputerSystem).Workgroup
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}
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Function Set-Workgroup {
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Param(
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[string] $workgroup_name
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)
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Write-DebugLog ("Calling JoinDomainOrWorkgroup with workgroup {0}" -f $workgroup_name)
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return (Get-WmiObject Win32_ComputerSystem).JoinDomainOrWorkgroup($workgroup_name)
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}
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Function Join-Workgroup {
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Param(
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[string] $workgroup_name,
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[string] $domain_admin_user,
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[string] $domain_admin_password
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)
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If(Is-DomainJoined) { # if we're on a domain, unjoin it (which forces us to join a workgroup)
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$domain_cred = Create-Credential $domain_admin_user $domain_admin_password
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# 2012+ call the Workgroup arg WorkgroupName, but seem to accept
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$rc_result = Remove-Computer -Workgroup $workgroup_name -Credential $domain_cred -Force
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}
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# we're already on a workgroup- change it.
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Else {
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$swg_result = Set-Workgroup $workgroup_name
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}
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}
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$result = @{
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changed = $false
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reboot_required = $false
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}
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$params = Parse-Args -arguments $args -supports_check_mode $true
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$state = Get-AnsibleParam $params "state" -validateset @("domain","workgroup") -failifempty $result
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$dns_domain_name = Get-AnsibleParam $params "dns_domain_name"
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$hostname = Get-AnsibleParam $params "hostname"
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$workgroup_name = Get-AnsibleParam $params "workgroup_name"
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$domain_admin_user = Get-AnsibleParam $params "domain_admin_user" -failifempty $result
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$domain_admin_password = Get-AnsibleParam $params "domain_admin_password" -failifempty $result
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$log_path = Get-AnsibleParam $params "log_path"
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$_ansible_check_mode = Get-AnsibleParam $params "_ansible_check_mode" -default $false
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If ($state -eq "domain") {
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If(-not $dns_domain_name) {
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Fail-Json @{} "dns_domain_name is required when state is 'domain'"
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}
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}
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Else { # workgroup
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If(-not $workgroup_name) {
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Fail-Json @{} "workgroup_name is required when state is 'workgroup'"
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}
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}
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$global:log_path = $log_path
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Try {
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$hostname_match = If($hostname) { Get-HostnameMatch $hostname } Else { $true }
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$result.changed = $result.changed -or (-not $hostname_match)
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Switch($state) {
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domain {
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$domain_match = Get-DomainMembershipMatch $dns_domain_name
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$result.changed = $result.changed -or (-not $domain_match)
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If($result.changed -and -not $_ansible_check_mode) {
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If(-not $domain_match) {
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If(Is-DomainJoined) {
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Write-DebugLog "domain doesn't match, and we're already joined to another domain"
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throw "switching domains is not implemented"
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}
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$join_args = @{
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dns_domain_name = $dns_domain_name
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domain_admin_user = $domain_admin_user
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domain_admin_password = $domain_admin_password
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}
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Write-DebugLog "not a domain member, joining..."
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If(-not $hostname_match) {
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Write-DebugLog "adding hostname change to domain-join args"
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$join_args.new_hostname = $hostname
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}
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$join_result = Join-Domain @join_args
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}
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ElseIf(-not $hostname_match) { # domain matches but hostname doesn't, just do a rename
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Write-DebugLog ("domain matches, setting hostname to {0}" -f $hostname)
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$rename_args = @{NewName=$hostname}
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If (Is-DomainJoined) {
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$domain_cred = Create-Credential $domain_admin_user $domain_admin_password
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$rename_args.DomainCredential = $domain_cred
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}
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$rename_result = Rename-Computer @rename_args
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}
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# all these changes require a reboot
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$result.reboot_required = $true
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}
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Else {
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Write-DebugLog "check mode, exiting early..."
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}
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}
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workgroup {
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$workgroup_match = $(Get-Workgroup) -eq $workgroup_name
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$result.changed = $result.changed -or (-not $workgroup_match)
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If(-not $_ansible_check_mode) {
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If(-not $workgroup_match) {
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Write-DebugLog ("setting workgroup to {0}" -f $workgroup_name)
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$join_wg_result = Join-Workgroup -workgroup_name $workgroup_name -domain_admin_user $domain_admin_user -domain_admin_password $domain_admin_password
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$result.reboot_required = $true
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}
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If(-not $hostname_match) {
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Write-DebugLog ("setting hostname to {0}" -f $hostname)
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$rename_result = Rename-Computer -NewName $hostname
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$result.reboot_required = $true
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}
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}
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}
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default { throw "invalid state $state" }
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}
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Exit-Json $result
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}
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Catch {
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$excep = $_
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Write-DebugLog "Exception: $($excep | out-string)"
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Throw
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}
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