[CentOS-devel] Repository structures for SIG and variants in the future

Wed Feb 5 00:00:52 UTC 2014
Ljubomir Ljubojevic <centos at plnet.rs>

On 02/04/2014 06:00 PM, Karanbir Singh wrote:
> On 02/04/2014 04:02 PM, Jim Perrin wrote:
>>> Look at it this way, putting glusterfs, ceph in tier3 ( bcause they need
>>> a  modified build for qemu ) will mean that the only way openstack is
>>> able to consume it will be if openstack is in the same repo ( and they
>>> are all collected at a teir3 ), then cascade down and the entire dep
>>> tree needs to move back upto a teir3, at which point its all just a flat
>>> OS tree and tier3 repos.
>> But openshift would be able to exist as a tier 1 or tier2, since it's
>> simply adding packages without updating core distro rpms. So it depends
>> a bit on what the user wants to do.
> maybe it needs puppet, which needs ruby which comes from a repo that
> replaces the base os ruby. So while it can exist as a tier1 in this
> model, its dep tree is going to cascade upto tier3, so might as well
> make it a tier3 repo.
>> So the issue seems to be more with the dependency tiering requirement
>> rather than the categorization of the tiers themselves.
> yes, we need stuff to go into the lower tiers that have the ability to
> change packages, so that other repos can then rely on them ( or require
> them optionally, eg: opennebula-node-xen )
>>> nutshell: libvirt, qemu, xen4centos, ceph and friends are all going to
>>> be -required- to be tier1's and be allowed to replace ( namespace
>>> overload ?) components, so that every other component above in other
>>> teri1's or 2's or 3's are able to consume it.
>> They can't be tier1's if they're updating or conflicting with existing
>> packages, but we can certainly relax the dependency requirements to
>> resolve this. That should resolve this issue, right?
> or we find a way to have repos contain content that overwrites others,
> and use namespace overload or something other mechanism to allow it at
> any tier.

Yum priority= fits so nicely here. Just saying.

Ljubomir Ljubojevic
(Love is in the Air)
PL Computers
Serbia, Europe

StarOS, Mikrotik and CentOS/RHEL/Linux consultant