Bug 457977

Summary: libvirt: need way to pass options to dnsmasq
Product: [Fedora] Fedora Reporter: Matt Domsch <matt_domsch>
Component: libvirtAssignee: Daniel Veillard <veillard>
Status: CLOSED WONTFIX QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 9CC: berrange, virt-maint, wwlinuxengineering
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Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2009-07-14 10:55:52 EDT Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:

Description Matt Domsch 2008-08-05 17:28:08 EDT
Description of problem:
libvirt starts dnsmasq with a set of options.  To enable guest boot from iSCSI direct, it would be beneficial to specify, via a DHCP option, the iSCSI target a specific guest should boot from.

Something like this dnsmasq command line option is needed:

--dhcp-option=17,” iscsi:10.9.166.71::::iqn.200609.com.example.myhost:storage” 

but note, this is on a per-guest basis.  dnsmasq seems not to have a way to updates its configuration information during runtime, so changes made via libvirt would require restarting dnsmasq to pick up those changes.


Version-Release number of selected component (if applicable):
libvirt-0.4.4-2.fc10.x86_64
Comment 1 Daniel Berrange 2008-08-06 05:58:08 EDT
We don't currently have any XML syntax for specifying DHCP options with the libvirt networking config. So this will first entail figuring out a good way to represent this capability. Then as you say there's a impl detail of needing to update dnsmasq's config and/or restart it. This is something that'll need to be discussed on upstream libvirt mailing list further
Comment 2 Bug Zapper 2009-06-09 22:23:09 EDT
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Comment 3 Bug Zapper 2009-07-14 10:55:52 EDT
Fedora 9 changed to end-of-life (EOL) status on 2009-07-10. Fedora 9 is 
no longer maintained, which means that it will not receive any further 
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If you can reproduce this bug against a currently maintained version of 
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Thank you for reporting this bug and we are sorry it could not be fixed.