[Starlingx-discuss] Trying a "mirrorless" build

Jones, Bruce E bruce.e.jones at intel.com
Mon Jul 30 17:18:16 UTC 2018


Scott, you raised a very interesting point.  

I think that the tension between A and B is more about wanting to do both at the same time.  We want to provide high levels of performance and stability, pushing us toward A.  But the pain of maintaining the patches necessary and managing older package versions pushes us toward B.

I think we need to find the balancing point between the two - where performance is high and the pain as low.

      brucej


-----Original Message-----
From: Scott Little [mailto:scott.little at windriver.com] 
Sent: Monday, July 30, 2018 7:40 AM
To: starlingx-discuss at lists.starlingx.io
Subject: Re: [Starlingx-discuss] Trying a "mirrorless" build

I think there is a fundamental tension between between two views of were StarlingX should go.

Vision A, StarlingX's is about a usable iso)
    + If software context X (tag, branch what ever) compiles today, it should compile tomorrow.
    + Software context X (tag, branch what ever) should always produce the same iso when compiled.
    - Requires that the set of packages that we compile against be frozen in some fashion.

Vision B, StarlingX is just software)
    + Always use the latest and greatest packages.  I don't want to hand manage which external packages are used.
    - Builds may break at any time due to external factors, even on release branches.

Folks who want to make a functioning product likely prefer A.

Folks that want to work with the latest features, or prototyping new features might prefer B.



You experiment is solidly in the B camp.

I did experiment with yum priorities recently, but it didn't deliver the 
desired result.  An older StarlingX package with higher priority failed 
to override a newer upstream package. Instead yum threw an error because 
newest package was ... 'eclipsed'... I think the word was.  Couldn't 
find a quick way to suppress that error, so I abandoned the experiment.

Scott


On 18-07-27 07:02 PM, Cordoba Malibran, Erich wrote:
> Hi all,
>
> I tried an experiment on building StarlingX without downloading a
> mirror and use mock/yum to download and resolve depenencies on the fly.
>
> I want to share with you this report[0] with the findings.
>
> I hope you can find this interesting :)
>
> -Erich
>
> [0] https://gist.github.com/ericho/049d1908f5d80485541e918515996702
> _______________________________________________
> Starlingx-discuss mailing list
> Starlingx-discuss at lists.starlingx.io
> http://lists.starlingx.io/cgi-bin/mailman/listinfo/starlingx-discuss



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