[scl.org] How to migrate to CentOS builds

[Honza Horak]

On 01/07/2016 03:01 AM, Noah Kantrowitz wrote:
>
>> On Jan 6, 2016, at 4:58 AM, Honza Horak <hhorak at redhat.com> wrote:
>>
>> On 01/05/2016 09:13 PM, Noah Kantrowitz wrote:
>>>
>>>> On Jan 5, 2016, at 12:12 PM, Honza Horak <hhorak at redhat.com> wrote:
>>>>
>>>> Currently, all the collections from RHSCL 2.1 have been released and announced. The website softwarecollections.org already includes steps to install those SCLs by running `yum install centos-release-scl-rh`.
>>>>
>>>> However, the original repo packages are still there as well, because removing them would break users' settings (as we saw recently when the website got down). I'd like to find out a way to migrate to CentOS builds.
>>>>
>>>> Many users use the repository packages from scl.org now, so simply removing those packages from scl.org right now is not an option. One idea with a relative schedule could be:
>>>>
>>>> day 0: make the repository packages deprecated by adding a comment about it on scl.org (+ make some noise around it on ML, twitter, blogs...)
>>>> day 0+30: hide the repository packages on scl.org and only show `yum install centos-release-scl-rh` there
>>>> day 0+90: remove the repository packages
>>>>
>>>> This way people who care should have enough time to move their infrastructure to using `yum install centos-release-scl-rh` instead of `yum install https://www.softwarecollections.org/.../rhscl-<scl>-epel-7-x86_64.noarch.rpm`, but those who wouldn't notice would have problems.
>>>>
>>>> Another way would be replacing the repository packages by empty RPMs that would include centos-release-scl-rh package. This way the movement would be transparent for all users, but I'm not sure whether this is a good way to go, because people would start using another builds without notice. Well, at least it shouldn't break anything.
>>>>
>>>> I'd like to hear any opinions, or other alternatives, especially from SCL users.
>>>
>>> How does any of this work for people using SCL on actual RHEL, not CentOS?
>>
>> On RHEL people don't use builds from COPR, so they are not influenced.
>
> Which repos are we talking about here? Because there aren't many other ways to get Python 3 or other recent-y things on RHEL 6/7.

I distinguish here between repositories provided by RH (which you gain 
access to using `yum-config-manager --enable rhel-server-rhscl-7-rpms` 
in RH and you need RHEL subscription for them) and rebuilds of the same 
packages for CentOS, which used to be build in Copr and now they are 
build in cbs.centos.org.

This whole thread is only about the CentOS builds.

Honza