[Rdo-list] Integration of MidoNet into RDO Manager

[Sandro Mathys]

On Fri, Jul 31, 2015 at 1:17 AM, Adam Young <ayoung at redhat.com> wrote:
> On 07/30/2015 07:14 AM, Perry Myers wrote:
>>>
>>> >Well, for our packages, Fedora and EL would be fairly different. The
>>> >MidoNet core is written in Java/Scala, so much more (tools, deps) is
>>> >missing from EL, e.g. gradle and of course lots of artifacts. So we
>>> >should target EPEL, I guess.
>>
>> I wouldn't follow Adam's advice here (starting with Fedora). Especially
>> for the SDN solution which is Java based. That would lead to a lot of
>> pain and overhead.
>>
> Heh...I still stand by it.  But, to be clear:  make sure the parts that you
> want to ship with RDO are build able on Fedora;  We want to be able to test
> against as far upstream as possible.  I tend to develop on Fedora and then
> test against Centos and RHEL.

Personally, I would also do it that way - but I can't guarantee that
everyone involved will follow that approach.

> For the Java stuff....yeah, it can be a lot of work, but ultimately is worth
> the effort.  We went through a lot of packaging pain for Dogtag, whcih is
> part of Barbican...Dogtag was, I think, the first Tomcat Application that
> got into Fedora.  WIth JPackage etc, getting RPMs for the Software you have
> is manageable.  But all that is is beyond the string need for the Neutron
> Plugin.
>
>
> SO, it depends on how far you want to go.  If you only care about getting
> the plugin into RDO, yeah, you don't need to package the Java code.  If you
> want to participate in the RDO and Fedora communities, I'd recommend getting
> the packages done correctly, but that can be done over time.

I agree, but it will take a very long time to achieve this.

> I'd recommend looking into hosting COPR for the components you want to
> build.  You can start with the easy ones.
>
> The Fedora Java team has done a lot of work on getting Maven builds to be
> able to select only packages that are themselves part of Fedora.  You might
> be surprised at how much packaging you don't actually have to write today.
> As an added benefit, you get code that will help you installing the rest of
> MidoNet on a RHEL system.

Well, we currently use gradle, not maven - but as of F22 gradle and
gradle-local are available as well. However, trying to build MidoNet,
I didn't even get past the build dependencies (gradle plugins, I
think). Having packaged ant and maven based stuff for Fedora before, I
was rather surprised how fast it failed ;) But I get your point :)

-- Sandro


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