Major Roadblocks - real life use cases

Tom Barber tom at spicule.co.uk
Tue May 29 18:31:04 UTC 2018


I have a couple of new bits and pieces coming to the data charms soonish so
if no one beats me to it we can take a look at Hadoop storage also.


Tom


On 29 May 2018 at 16:50:22, James Beedy (jamesbeedy at gmail.com) wrote:

Drew,

Thanks for the response.

I've been dabbling in these areas.

Looks like I may just need to use a combination of a few different methods
here.

~James



On Tue, May 29, 2018 at 8:45 AM, Drew Freiberger <
drew.freiberger at canonical.com> wrote:

> On Mon, May 28, 2018 at 10:23:21PM -0700, James Beedy wrote:
>
>> I want to shed some light on a few blockers for me right now.
>>
>> 2) Maas needs better support for 3rd party drivers.
>>      * Getting my Mellanox drivers hooked up at commissioning so maas
>> recognizes the 40Gb interfaces is taking me a few weeks now. Supporting
>> user defined 3rd party driver should be a primary supported capability of
>> MAAS.
>>      * how are people doing Hadoop,and Ceph and Openstack without this,
>> possibly someone knows something I don’t know here?
>>
>
> Hello James,
>
> I believe that MAAS 2.x's nodes-scripts (Hardware Testing and
> Commissioning scripts) might be helpful for any custom code or
> drivers you might want to inject in the commissioning process.
>
> Here is a link to the guide for these scripts.  I might suggest
> the cript example for "Configure HPA" might provide a good template for
> how you might want to inject a Mellanox driver/config into your build.
>
> https://docs.maas.io/2.3/en/nodes-scripts
>
> The MAAS server has a web server serving out a docroot from
> /var/www/htdocs where you can drop any files you might want to curl/wget
> from your scripts.  I believe there are environment variables for the
> preseeds for the IP of the MAAS server for your URL.
>
> You might also notice that you can have the script automatically install
> packages from any of apt, snap, or URL.  You can even tag the script to
> automatically run on hardware with a specific PCI ID. with the
> for_hardware metadata field.
>
> Documentation on managing these scripts via the CLI is here:
>
> https://docs.maas.io/2.3/en/nodes-scripts-cli
>
> In MAAS 1 environments, one would have to update the curtin preseeds
> manually in /etc/maas/preseeds to inject scripts of this type.
>
> I do not know if the commissioning scripts also happen at deployment
> time (doubtful), but hopefully the install of your chosen OS will
> include the drivers needed, or you've found that you can add an Ubuntu
> package repository or PPA that contains your packages to be installed
> per https://docs.maas.io/2.3/en/manage-repos.
>
> I hope this information helps.
>
> Sincerely,
> -Drew
>
> Any feedback would be greatly appreciated.
>>
>> Thanks
>>
>>
>>
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