Open Stack

Thanks Jim. WA did the trick. Very well explained.

Should I raise a bug for fake driver's power state?.

On Tue, Mar 29, 2016 at 5:30 PM, Jim Rollenhagen <jim at jimrollenhagen.com>
wrote:

> On Tue, Mar 29, 2016 at 04:59:09PM +0300, Senthilprabu Shanmugavel wrote:
> > Hello,
> >
> > I am using Ironic for deploying baremetal to my openstack environment.
> > Using Liberty version on Ubuntu 14.04. I followed Ironic documentation
> to
> > deploy x86 servers using pxe_ipmitool. Now I have a working Ironic setup
> > for PXE boot. I also want to add my test board running ARM 64 bit CPU to
> > ironic deployment. I would like to try using fake_pxe drivers because my
> > board don't support IPMI or anything else for out of band communication.
> So
> > idea was to do deployment without power management, eventually fake_pxe
> is
> > the obvious choice. But I have problem in updating the Ironic node which
> I
> > will explain below.
> >
> > I created ironic node using fake_pxe driver. Added all necessary
> parameters
> > using node-update command. Node-show command output is given below for
> > reference
> >
> > <snip>
> >
> > Because of this during nova boot, scheduler failed to boot the BM
> instance.
> >
> > Can anyone help me with what's wrong in my configuration?....
>
> I guess probably someone has never used the fake power driver with
> devstack. :)
>
> If a node's power state is None, it will be ignored by Nova:
>
> https://github.com/openstack/nova/blob/master/nova/virt/ironic/driver.py#L171
>
> And the fake power driver doesn't set the power state to on/off itself:
>
> https://github.com/openstack/ironic/blob/master/ironic/drivers/modules/fake.py#L43
>
> We should probably fix this by changing it to:
>     return task.node.power_state or states.POWER_ON
>
> In the meantime, an easy workaround would be:
> ironic node-set-power-state <uuid> on
> ironic node-set-power-state <uuid> off
>
> Which would have the driver 'remember' the power state is currently off,
> allowing Nova to pick up the resources.
>
> Hope that helps :)
>
> // jim
>
> >
> >
> >
> > Thanks in advance,
> > Senthil
>
> >
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-- 
Best Regards,
Senthilprabu Shanmugavel
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