Hi Daniel,
What we are really trying to do is emulate the OCCI self-service
GUI. We potentially have a lot of networks (routed and non-routed)
which could be used for teaching and research so having a set of core
templates that can be modified on-the-fly is a very useful feature.
Also, we could have many different images so predefined templates for
(networks) X (images) x (CPU/memory specs) starts to get large and
requires continual maintenance as images are updated. Having the OCCI
stubs simplifies this. If there were quotas on templates and/or if user
templates were somehow hidden then it might be feasible to let users
create their own templates and ignore them.
There is also the question of human resources in providing support
for OpenNebual users. Switching from the OCCI GUI requires retraining of
support staff. On the other hand, the view model will clearly be more
flexible in the long run and will facilitate provisioning for more
sophisticated users who can be trusted not to create large amounts of
templates.
In the meantime we have pointed the 3.8 OCCI GUI at the 4.2 core
and everything looks good so far. The only change we had to make was to
explicitly specify the OS parameters (BOOT and ARCH) in the stub
templates, otherwise the VMs wouldn't boot.
I'm not sure I follow you suggestion below as to how cloud users
could install from CD. How would they specify a different boot device?
One new feature that we would find really useful would be if users
were allowed to CLONE to a different datastore. We tend to put our
system images and any public images in datastore 1 and user images in
other datastores. We have to run multiple versions of the OCCI to direct
different classes of users to different datastores. It would be nice if
users could clone from public images in datastore 1 into their own
datastore. I guess AppMarket is the proper way to do this, but simple
cloning is easy.
Regards,
Gerry
On 08/10/2013 13:59, Daniel Molina wrote:
On 8 October 2013 12:55, Gerry O'Brien <ge...@scss.tcd.ie> wrote:
Hi Daniel,
I have already created templates for cloud users but that does not
allow them, as far as I can see, to make persistent images. In any event,
the freedom to mix and match CPU/Memory/network settings to various images
is lost.
You could enable the images tab, as you did in another thread, so users can
create their own images and in the "launch" vm button they will be able to
select those images and one of the predefined templates, which includes de
cpu, memory, network configuration.
Also, without the ability to create templates I cannot see how they can
create a datablock and install their own images from CD. I can enable
templates in the cloud view but as they are not controlled by quota I'm
worried about not being able to access our sysadmin templates among an
unbounded clutter of user templates. If the user templates could be stored
somewhere else or hidden from view that might solve the problem.
You can use the base template, instantiate a new vm and then attach a new
disk (datablock) where users will install their own images from CD.
I don't really get what you are trying to accomplish, could you please
explain your use case, so we can see if it fits in the new cloud views.
Cheers
Using the CLI is not really an option as I had intended to make the
self-service available to undergraduate students. In my experience, even
researchers who had previous cloud experience found the OCCI interface
unintuitive at first. However, once they got the hang of it, it proved very
flexible.
It seems strange to release a new version of software and cripple
functionality that was previously available (Microsoft's Windows 8 come to
mind!). Can OCCI 4.2 be built from source with the UI included or the
version of OCCI shipped with 3.8 pointed at OpenNebula 4.2?
My intention was to deploy 4.2 for student use this week. If I can't
provide the functionality of OCCI 3.8 I will have to abandon 4.2, which
seems a shame.
Regards,
Gerry
On 08/10/2013 09:02, Daniel Molina wrote:
Hi Gerry,
As you said the old OCCI-based self-service is deprecated and the ui was
removed from the code. You should be able to use it from the CLI, but it
will be also removed sooner or later.
The current cloud view [1], that was implemented to replace the old
self-service, allows you to select a template and na image and launch a
new
instance without creating new templates. The only part missing for you use
case is the network, so maybe we can add this option for upcoming
releases,
please open a feature request in our dev page so we can consider it.
Meanwhile you could use the cloud view and create templates that already
define the network (i.e.: small_and_private_net, small_and_public_net,
large_and_private_net ...)
Cheers
[1]
http://opennebula.org/**documentation:rel4.2:cloud_**view<http://opennebula.org/documentation:rel4.2:cloud_view>
On 7 October 2013 16:20, Gerry O'Brien <ge...@scss.tcd.ie> wrote:
Hi,
The reason why I've asked the question below is because I get the
error message below when I try to run the occi-server. I've read in the
posts that it is depreciated but I'm confused as there is documentation
here
http://opennebula.org/****documentation:rel4.2:occiug<http://opennebula.org/**documentation:rel4.2:occiug>
<ht**tp://opennebula.org/**documentation:rel4.2:occiug<http://opennebula.org/documentation:rel4.2:occiug>
**for 4.2.
Regards,
Gerry
XML Parsing Error: no element found
Location: http://XXX.scss.tcd.ie:4567/
Line Number 1, Column 1:
On 07/10/2013 15:11, Gerry O'Brien wrote:
Hi,
I'm trying to emulate the ease-of-use of OCCI self-service in
OpenNebula 4.2.0 Sunstone using views. In particular, I liked the idea
of
the drop-down list of predefined templates where machines could be
provisioned by adding an image and a network. It seems the only way to
emulate this is to allow cloud users to be able to create templates.
While
I appreciate the flexibility of Sunstone views I'm concerned that if
cloud
users can create templates then there is a danger that the site will be
littered with templates. If the templates could be placed in another
location that would be great. Is there any way around this or am I
missing
something? Somehow, the OCCI self-service was able to hide these
templates
that it created on the fly.
Regards,
Gerry
--
Gerry O'Brien
Systems Manager
School of Computer Science and Statistics
Trinity College Dublin
Dublin 2
IRELAND
00 353 1 896 1341
______________________________****_________________
Users mailing list
Users@lists.opennebula.org
http://lists.opennebula.org/****listinfo.cgi/users-opennebula.****org<http://lists.opennebula.org/**listinfo.cgi/users-opennebula.**org>
<http://lists.opennebula.**org/listinfo.cgi/users-**opennebula.org<http://lists.opennebula.org/listinfo.cgi/users-opennebula.org>
--
Gerry O'Brien
Systems Manager
School of Computer Science and Statistics
Trinity College Dublin
Dublin 2
IRELAND
00 353 1 896 1341
--
Gerry O'Brien
Systems Manager
School of Computer Science and Statistics
Trinity College Dublin
Dublin 2
IRELAND
00 353 1 896 1341
_______________________________________________
Users mailing list
Users@lists.opennebula.org
http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
