openstack team mailing list archive

[Pádraig Brady <P@xxxxxxxxxxxxxx>]

On 10/28/2012 06:00 PM, Daniel Vázquez wrote:

> 2012/10/27 Pádraig Brady <P@xxxxxxxxxxxxxx>:
> > On 10/26/2012 06:38 PM, Daniel Vázquez wrote:
> > > 2012/10/26 Pádraig Brady <P@xxxxxxxxxxxxxx>:
> > > > On 10/25/2012 06:30 PM, Pavan Kulkarni wrote:
> > > > > Hi all,
> > > > >
> > > > >      I am facing errors while launching instances on RHEL.
> > > > > The network.log says *cannot run lease-init script
> > > > > /usr/bin/nova-dhcpbridge*
> > > > > I did a liitle search and found out this link
> > > > > <https://lists.launchpad.net/openstack/msg08790.html>, followed the
> > > > > instructions.
> > > > > I have the flag in nova.conf set i.e *dhcpbridge =
> > > > > /usr/bin/nova-dhcpbridge ( This file does exist)*
> > > > >
> > > > > But I still get the same error while launching instances.
> > > > > Any help is highly appreciated .Thanks
> > > >
> > > >
> > > >
> > > > What version of RHEL?
> > > > What version of OpenStack?
> > > > What version of selinux-policy?
> > > >
> > > > The error message (which you seem to have truncated) comes from
> > > > dnsmasq itself, and is mentioned here in relation to SELinux:
> > > > https://bugzilla.redhat.com/show_bug.cgi?id=734346
> > > > You might want to update your SELinux policies.
> >
> >
> > > I'm experiencing same problems on Centos 6.3 (it's RHEL based). All
> > > network system seem to stay ok, Openstack produces private IPs and nat
> > >    public iPs to instances.
> > > But instances don't discover DHCP.
> > >
> > > Here:
> > > Centos 6.3
> > > Essex version
> > > nova-networking flatDCHP
> > > selinux permisive
> >
> > I can't reproduce here.
> > Are you using the EPEL OpenStack packages?
> > On 6.3 based systems please ensure you install the dnsmasq-utils,
> > which installs utils that may be related to this.
> >
> > If using the EPEL packages, I'd advise logging this
> > at http://bugzilla.redhat.com/ against the EPEL version
> > of openstack-nova, so that we don't miss anything.
>
> Using epel and dnsmasq-utils, here.

OK please see if there are corresponding messages in /var/log/audit/audit.log
as shown in https://bugzilla.redhat.com/show_bug.cgi?id=734346

If you turn on debugging you should see the `sudo ... dnsmasq`
command being run, and you can try that manually with various
settings to pinpoint your issue.
I know you said you've SELinux=permissive.
Maybe start with SElinux=disabled, and if that works,
you know it's a policy issue on your system.
If it doesn't work then see can you run the script
manually without dnsmasq and build up from there.

thanks,
Pádraig.