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

[nicolas at devels.es]

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
> 
> 
> Links:
> ------
> [1] INFO::jetty-6.1.26
> [2] INFO::No
> [3] INFO::Started
> [4] http://www.ovirt.org/REST_API_Using_BASH_Automation
> 
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