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
