[ovirt-users] How does VDSM-Fake actually work?

[Roman Mohr]

On Fri, Feb 12, 2016 at 12:45 PM, Michal Skrivanek <
michal.skrivanek at redhat.com> wrote:

>
> On 09 Feb 2016, at 12:15, Nicolás <nicolas at devels.es> wrote:
>
> Is there a way to get an account on mojo.redhat.com or is it internal?
> I'm trying to open the document but credentials are required and I see no
> option to create an account.
>
>
> yes it is
>
> Eldad, would you please move it to ovirt.org instead?
>
>
I recently played with fakevdsm myself. The result was the patch series in
[1]. At least an updated README for the result of my patches can be found
in [2].


> Thanks,
> michal
>
>
> El 04/02/16 a las 13:49, emarcian escribió:
>
> Hi,
> Seems like you need to change this settings update vdc_options set
> option_value='false' where option_name='InstallVds';
> follow the instructions here:
> <https://mojo.redhat.com/docs/DOC-990399>
> https://mojo.redhat.com/docs/DOC-990399
>
> in case you using 3.6 there is a new war (if you run the simulator as
> standalone).
>
> -Eldad
>
>
> On 02/04/2016 03:04 PM, Piotr Kliczewski wrote:
>
> Eldad is working on making it working with engine 3.6. He should be able to
> give you information you need.
>
> On Wed, Feb 3, 2016 at 12:33 PM,  <nicolas at devels.es> <nicolas at devels.es> wrote:
>
> Anything?
>
> El 2016-02-02 10:18, Nicolás escribió:
>
> Hi,
>
>  I'm trying to set up VDSM-Fake
> (git://gerrit.ovirt.org/ovirt-vdsmfake.git) for some tests, however,
> I'm a bit confused about how does it actually work. As the
> instructions say, I was able to build the project with Maven (however,
> the org.ovirt.vdsm-jsonrpc-java dependency version had to be changed
> to 1.1.5 instead of 1.1.2-SNAPSHOT in pom.xml as this latter is no
> longer provided at the repository).
>
>  Once built, I run mvn jetty:run and the server started correctly:
>
>
> 2016-02-02 11:01:51.957:INFO::jetty-6.1.26 [1]
> 2016-02-02 11:01:52.804:INFO::No [2] Transaction manager found - if
> your webapp requires one, please configure one.
> 2016-02-02 11:01:53,424 Application initialized.
> 2016-02-02 11:01:53,442 Opening a Stomp server localhost:54322
> 2016-02-02 11:01:53.702:INFO::Started [3]SelectChannelConnector at 0.0.0.0:54321
> [INFO] Started Jetty Server
> [INFO] Starting scanner at interval of 10 seconds.
>
>  I could indeed verify it's listening on the VDSM port:
>
>
> [root at host ovirt-vdsmfake]# netstat -atpn | grep 54321
> tcp6       0      0
> :::54321
> :::*                    LISTEN
> 44870/java
>
>  So the next step is to add a fake host via REST. I used scripts
> provided here [4] and I successfully added the host, however, it
> starts installing all the VDSM packages as it were a normal host and
> therefore it tries to start vdsmd as well, which throws an error as
> the Jetty Server is already listening on the 54321 port. I shut down
> the Jetty Server and allowed oVirt Manager to install all the packages
> properly, then stopped vdsmd and started the Jetty Server, but
> expectedly oVirt Engine fails with message "Host xxx is non
> responsive", so what I actually got is a real VDSM host and not a fake
> one.
>
>  FWIW, the fake VDSM runs on a different host, ports are reacheable
> from the oVirt engine, proper /etc/hosts has been added to the engine
> to reach the host, and no further customization of web.xml has been
> done.
>
>  I feel like I'm missing something here. Could someone shed some light
> on what's wrong?
>
>  Thanks.
>
>  Nicolás
>
>
@Nicolas I would recommend you to use the top of my gerrit patches to run
vdsmake:

  git clone git://gerrit.ovirt.org/ovirt-vdsmfake
  cd ovirt-vdsmfake
  git fetch git://gerrit.ovirt.org/ovirt-vdsmfake refs/changes/70/53570/2
&& git checkout FETCH_HEAD

then follow the instructions in the README of the checked out repository
[3].

Hope that helps.

Best Regards,
Roman
<http://lists.ovirt.org/mailman/listinfo/users>

>
> [1]
https://gerrit.ovirt.org/#/q/status:open+project:ovirt-vdsmfake+branch:master+topic:easy_access
[2] https://gerrit.ovirt.org/#/c/53570/
[3] https://gerrit.ovirt.org/#/c/53570/2/README
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