[scl.org] How to migrate to CentOS builds

[Noah Kantrowitz]

> 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?

--Noah

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