Query regarding setting up MAAS Server on Power Ubuntu

[Charles Butler]

Greetings Shilpa,

comments are inline:

On Wed, Jan 6, 2016 at 6:38 AM, Shilpa Kaul <shilkaul at in.ibm.com> wrote:

> 9) Then through console we tried adding one node (another VM machine) by
> providing its MAC address and Power type. As it is a VM, we think the Power
> type should be selected as virish. But when we select option as "virish",
> we need to fill in Power Address and Power ID. As we don't have access to
> Power KVM Machine, we are not able to provide these details.


If you want to use MAAS to provision these VM's and have full control,
you're going to need to get a user on the PowerKVM system that has been
added to the virsh group. That's a requirement for having MAAS manage KVM
instances. There's a detailed answer on AskUbuntu here:

http://askubuntu.com/questions/292061/how-to-configure-maas-to-be-able-to-boot-virtual-machines




> The documents we are following has steps relevant to Power KVM. But we
> dont have access to Power KVM, will this MAAS setup work with only 6 VM's
> we have, without giving the details of Power KVM. If so, can someone please
> guide us how to setup MAAS cluster using VM's only?


It can work, but you'll need to get the proper kvm/virsh connection string
added to MAAS. Otherwise your nodes will never actually 'turn on' or 'turn
off' when juju is done with the VM. That all becomes manual steps to take.

What mark suggested is correct, with only 6 VM's it can seem like less of a
headache in the short run to just allocate the VM's and enlist them in
Juju. if you're going ot be doing a lot of lab work on these vm's and have
to fully decommission / re-provision between runs, MAAS will be your best
friend. (as a charmer, I tear down and stand up environments at least 6x a
day, manually working through VM configs in this manner is tedious, MAAS is
a boon in this scenario) - but it really is an intermediate/advanced
concept depending on how your lab is prepared.

VMAAS can be a slippery slope, and has some networking considerations that
may not be completely obvious until the maas cluster is functioning. such
as vm's get provisioned but are unreachable, and things of that nature. ymmv


If you need additional help, i'm happy to lend a hand in IRC in #juju on
irc.freenode.net in a more realtime troubleshooting fashion. I've done
quite a few vmaas setups w/ the eco team and feel that I have a pretty good
grasp of the concepts at play here.

Best of luck to you,

Charles



Charles Butler <charles.butler at canonical.com> - Juju Charmer
Come see the future of datacenter orchestration: http://jujucharms.com
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