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  3. April 2020

Re: Cloud-init for IBM i

Yes,
PowerVC is based on OpenStack (it's basically OpenStack without the vanilla
dashboard and tuned for IBM POWER systems).
The nice thing is that it bring a lot of cloud features to the table, like
the ability to take an image of a VM and be able to deploy it at will,
without having to manually modify anything at creation time.
A little bit like the Lab Services toolkit for PowerHA that allows you to
use flashcopy to clone, startup backup and delete an IBM i LPAR but without
having to license PowerHA or have iASPs (you can actually take a template
of a running LPAR, of course it won't be the cleanest image, but it works).
It also leverages a lot of the PowerVM features like Live Partition
Mobility, offline LPM (when the source host is dead but you can still move
the LPAR), automatic restart on another host if the host dies, etc etc etc.
I like it a lot and for some of my biggest AIX customers, it's a perfect
fit. I'm trying to make it work with IBM i just to be able to have every
flavour of OS correctly represented...


On Fri, Apr 10, 2020 at 8:26 PM Jack Kingsley <iseriesflorida@xxxxxxxxx>
wrote:

I had never heard of this, so just started to research this. Is this
something similar to cloning a vm.

On Wed, Apr 8, 2020 at 12:20 PM Roberto José Etcheverry Romero <
yggdrasil.raiker@xxxxxxxxx> wrote:

Miguel,
That link is referenced in my initial email as the only "howto" regarding
cloud-init. Since my LPAR is running on POWER7 hardware, I did run that
command.
I cannot play with the LPAR right now, but I'll be testing the write
command on cloud.cfg tomorrow.

Roberto

On Wed, Apr 8, 2020 at 1:08 PM Miguel Peralta <mperalta8@xxxxxxxxxxx>
wrote:

Hi, you see these link?:

https://www.ibm.com/support/pages/cloud-init-support-ibm-i

You run these command?:

*How to enable the cloud-init on IBM i?*
To enable the cloud-init on an IBM i machine manually, run CALL
PGM(QSYS/QAENGCHG) PARM(*ENABLECI) on the virtual machine.


On 08/abr./2020 10:23 a. m., Roberto José Etcheverry Romero wrote:
Hi all,

I've been playing around with PowerVC after attending a course on it
and
since it supports IBM i and the course didn't cover it, I decided to
test
it myself.

I built a 7.3 IBM i LPAR, updated with latest cumulative and groups,
including the recommended PTFs for all products. Afterwards I
installed
all
the open source packages thru the ACS tool.

Finally, I installed cloud-init as per the only instructions
available
in
the IBM site (
https://www.ibm.com/support/pages/cloud-init-support-ibm-i
)

I edited the cloud.cfg file and added the line about setting the
hostname
from the reversedns (PowerVC assigns an IP from the pool and when the
system IPLs it does a reverse DNS search to obtain the hostname).

Finally I shutdown the LPAR and do a capture from PowerVC.

Now, when I deploy the template and IPL the new LPAR, I find that
it's
not
doing any initialization at all, hostname, system name, etc stay the
same.
A lot of messages about missing paths for disks and missing devices
are
logged. The ethernet line that should be fixed to the new CMN object
still
references the old and the IP address is still the former one.

So, has anybody worked with Cloud-init for IBM i?
For my next test I'll add the line about writing a file to cloud.cfg
to
check if it is actually running on the first run.

Best Regards,

Roberto
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