Re: [Users] ovirt VM custom properties

Something else I thought of on this. While the admin portal allows for custom properties and this works there for the user portal it does not. Thus a power user in the PUP cannot specify this as a custom property. This again would inhibit their ability to interact with and install certain guests. Is there a way we can allow a power user to specify a custom property on a VM w/o admin interaction? - Chris -----Original Message----- From: Brown, Chris (GE Healthcare) Sent: Thursday, February 02, 2012 2:52 PM To: 'Andrew Cathrow' Cc: users(a)ovirt.org Subject: RE: [Users] ovirt VM custom properties Andy, Many thanks! That got me going the right direction. I did some extensive testing of with this. Here are the changes I made but basically what I do is: - If the user specifies a custom property of usbtablet, just rewrite the input tag with: <input type='tablet' bus='usb'/ id='input0'> This will of course rewrite the existing <input type='mouse' bus='ps2'/> But in this case we know we desire usbtablet so just re-write with what we want. For non problematic guests or guests to which the agent can be installed we simply remove the custom property after the agent is added. For legacy guests all the way back to redhat 7.3 and win98/win2k etc we can simply use usbtablet for now. Once the issues with the mouse input issues with the aforementioned guest types are resolved we again won't need this (hopefully). - Chris #!/usr/bin/python # VDSM Hook Script for RHEV/oVirt # Enables USB tablet support for a guest # use rhevm-config for RHEV or engine-config for oVirt to add UserDefinedVMProperties # EX: rhevm-config -s UserDefinedVMProperties='usbtablet=^(true|false)$' --cver=3.0 # Remember to restart jboss # Use VM custom property usbtablet=true in vm configuration (Custom Properties) import os import sys import hooking import traceback if os.environ.has_key('usbtablet'): try: sys.stderr.write('usbtablet requested\n') domxml = hooking.read_domxml() devices = domxml.getElementsByTagName('devices')[0] inputdev = domxml.getElementsByTagName('input')[0] inputdev.setAttribute('bus', 'usb') inputdev.setAttribute('type', 'tablet') inputdev.setAttribute('id', 'input0') hooking.write_domxml(domxml) sys.stderr.write('usbtablet support enabled\n') except: sys.stderr.write('usbtablet: [unexpected error]: %s\n' % traceback.format_exc()) sys.exit(2) -----Original Message----- From: Andrew Cathrow [mailto:acathrow@redhat.com] Sent: Wednesday, February 01, 2012 5:01 PM To: Brown, Chris (GE Healthcare) Cc: users(a)ovirt.org Subject: Re: [Users] ovirt VM custom properties Not tested, no error handling (eg. does the element exist already) but ... #!/usr/bin/python import os import sys import hooking import traceback if os.environ.has_key('usbtablet'): try: sys.stderr.write('tablet: adding usbtablet support\n') domxml = hooking.read_domxml() devices = domxml.getElementsByTagName('devices')[0] tablet = domxml.createElement('input') tablet.setAttribute('bus', 'usb') devices.appendChild(tablet) hooking.write_domxml(domxml) except: sys.stderr.write('tablet: [unexpected error]: %s\n' % traceback.format_exc()) sys.exit(2) ----- Original Message -----