[chef] SOLVED: chef powershell cookbook won't update the hostname

solved .. more or less. if you're interested in the outcome:
http://help.opscode.com/discussions/problems/853-powershell-cookbook-wont-update-the-hostname

i still have open questions, but moving forward now.

kallen

On Tue, 18 Oct 2011, 

 
 wrote:

> hello. this still isn't working for me: updating Windows hostname using
> powershell via chef isn't working. can anyone lend a hand?
> 
> debug output of the initial chef-client run on a newly launched
> windows ec2 instance can be seen here:
> http://groknaut.net/chef-windows-rehostname.txt
> 
> in that output, i notice how it's invoked and that it ran successfully:
> [Tue, 18 Oct 2011 21:22:54 -0700] INFO: powershell[update-hostname] 
> sh(c:/windows/system32/WindowsPowershell/v1.0/powers
> hell.exe -ExecutionPolicy RemoteSigned -Command "& { 
> C:\DOCUME~1\ops\LOCALS~1\Temp\1\chef-script20111018-2940-1y3pd5y-0.ps1 }")
> [Tue, 18 Oct 2011 21:22:55 -0700] INFO: powershell[update-hostname] ran 
> successfully
> 
> 
> if it would help reveal what's going on, how could i run that by hand?
> this file is no longer present:
> C:\DOCUME~1\ops\LOCALS~1\Temp\1\chef-script20111018-2940-1y3pd5y-0.ps1
> i wonder if i can tell chef-client to leave that temp file in place so
> i can try to invoke it. if i had that file, how do i run it by hand? some
> kind of ruby/chef-client/shell_out handwave handwave..?
> 
> 
> 
> details:
> 
> using the powershell cookbook, i'm trying to cause a newly launched
> ec2 instance to update its hostname based on userdata, but it's not
> working. (i *did* use ec2configservice to allow hostname updates.)
> 
> when i run the powershell script within powershell it works. i reboot
> the host, and indeed it comes back up with the new name. but when i try
> to run this powershell script via chef, the instance reboots, but it
> doesn't come back with the new name.
> 
> below i show my recipe and the powershell script itself. any advice?
> 
> 
> notice in the recipe i've tried to call the powershell script using
> 2 different methods (one is commented out in the recipe). neither
> are working. are both invocations valid?
> 
> i also tried removing parts of the script that would write to STDOUT,
> in case that was making chef unhappy. didn't seem to help.
> 
> 
> 
> node info:
> ###################################################################
> [cheftain01]$ knife node show ip-DEADBEEF.ec2.internal
> Node Name:   ip-DEADBEEF.ec2.internal
> Environment: _default
> FQDN:        ip-DEADBEEF.ec2.internal
> IP:          50.17.113.175
> Run List:    role[winpower]
> Roles:       winpower
> Recipes:     windows::default, windows::reboot_handler, 
> powershell::default, powershell::rehostname
> Platform:    windows 5.2.3790
> 
> 
> recipe:
> ###################################################################
> # Cookbook Name:: powershell
> # Recipe:: rehostname
> #
> 
> windows_reboot 300 do
>     reason 'Because chef said so'
>     action :nothing
> end
> windows_reboot 30 do
>     action :cancel
> end
> 
> powershell "update-hostname" do
>     powershell_script = <<'POWERSHELL_SCRIPT'
>     $webclient = new-object system.net.webclient
>     $awsurl = "http://169.254.169.254/latest/user-data";
>     $userdata ="c:\Local\Chef\userdata.txt"
>     $webClient.DownloadFile("$awsurl","$userdata")
>     # -r foo -h sous-chef-win -e trex -c trex
>     $namefromuserdata = Get-Content $userdata | %{ $_.Split(' ')[3]; }
>     $computername = Get-Content env:computername
>     Write-Host -ForegroundColor Yellow "userdata: $namefromuserdata...."
>     Write-Host -ForegroundColor Yellow "computername: $computername...."
>     if ( $namefromuserdata -ine $computername )
>     {
>       Write-Host -ForegroundColor Green "renaming $computername to 
> $namefromuserdata."
>       $sysInfo = Get-WmiObject -Class Win32_ComputerSystem
>       $result = $sysInfo.Rename($namefromuserdata)
>       switch($result.ReturnValue)
>         {
>           0 { Write-Host -ForegroundColor Green "Success: renamed 
> $computername to $namefromuserdata." }
>           5 { Write-Host -ForegroundColor Red "This cmdlet must be execute 
> with administrative privileges" }
>           default { Write-Host -ForegroundColor Red "Error" }               
>        
>         }                                                                   
>        
>     }
>     else { Write-Host -ForegroundColor Green "NOT renaming $computername to 
> $namefromuserdata." }
> POWERSHELL_SCRIPT
>     notifies :request, 'windows_reboot[300]'
>     #notifies :create, "ruby_block[remove_rehostname]", :immediately
>     creates "C:\\Local\\Chef\\hostname-updated.txt"
> end
> 
> =begin
> powershell "update-hostname" do
>     command "C:\\Local\\bin\\update-hostname.ps1"
>     action :run
>     notifies :request, 'windows_reboot[30]'
> end
> =end
> 
> # not working yet:
> ruby_block "remove_rehostname" do
>   block do
>     Chef::Log.info("Recipe rehostname completed, removing the destructive 
> recipe[powershell::rehostname]")
>     node.run_list.remove("recipe[powershell::rehostname]") if 
> node.run_list.include?("recipe[powershell::rehostname]")
>   end
>   action :nothing
> end
> 
> 
> 
> update-hostname.ps1:
> ###################################################################
> $webclient = new-object system.net.webclient
> $awsurl = "http://169.254.169.254/latest/user-data";
> $userdata ="c:\Local\Chef\userdata.txt"
> $webClient.DownloadFile("$awsurl","$userdata")
> # in our userdata, hostname is the 4th element in array:
> $namefromuserdata = Get-Content $userdata | %{ $_.Split(' ')[3]; }
> $computername = Get-Content env:computername
> Write-Host -ForegroundColor Yellow "userdata: $namefromuserdata...."
> Write-Host -ForegroundColor Yellow "computername: $computername...."
> if ( $namefromuserdata -ine $computername )
> {
>     Write-Host -ForegroundColor Green "renaming $computername to 
> $namefromuserdata."
>     $sysInfo = Get-WmiObject -Class Win32_ComputerSystem
>     $result = $sysInfo.Rename($namefromuserdata)
>         switch($result.ReturnValue)
>         {  
>             0 { Write-Host -ForegroundColor Green "Success: renamed 
> $computername to $namefromuserdata." }
>             5 { Write-Host -ForegroundColor Red "This cmdlet must be 
> execute with administrative privileges" }
>             default { Write-Host -ForegroundColor Red "Error" }
>         }
> 
> else { Write-Host -ForegroundColor Green "NOT renaming $computername to 
> $namefromuserdata." }
> 
> 
> 
> thanks,
> kallen