[Ci-users] Request for virtual IP-addresses in the CI for fail-over testing

On 19/05/16 12:17, Niels de Vos wrote:
> Hi,
> 
> there is an integration in place with Gluster, NFS-Ganesha and
> Pacemaker. This combination makes it possible to have an active-active
> high-available NFS-server backed by Gluster volumes.
> 
> We'd like to add automated testing for functional fail-over in the CI.
> This requires the use of virtual-IPs that get assigned to the different
> NFS-Ganesha servers, which will migrate to other servers upon failure.
> 
> On https://wiki.centos.org/QaWiki/PubHardware is a mentioning of
> "reserved IP addresses" where the Gluster project in the CI would like
> to get listed too. What is the process to request a few IPs, and what
> are the restrictions we need to be aware of (and how to put them in the
> Jenkins job)?
> 
> Thanks,
> Niels

Hi Niels,

There are probably multiple ways to solve that. For example you have
multiple interfaces (and eth0 -> eth3 are now in the same vlan, but only
eth0 is configured )
So you can for example use another subnet not conflicting with the
172.19.0.0/22 (nor 172.19.4.0/22 also alocated for remote VMs), but I
don't know how you'll test the virtual ip : I guess from another
provisioned node (like a nfs client).
I've reserved the following range for Gluster : 172.19.2.21 ->
172.19.1.30 (and documented it on the wiki page)

Does that work for you ?

-- 
Fabian Arrotin
The CentOS Project | http://www.centos.org
gpg key: 56BEC54E | twitter: @arrfab

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