[CentOS-devel] Balancing the needs around the CentOS platform
Gordon Messmer
gordon.messmer at gmail.comSat Dec 19 20:28:28 UTC 2020
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On 12/19/20 1:34 AM, Mark Mielke wrote: > However, these are significant reasons why CentOS Linux is superior to > CentOS Stream: > > 1. Bug-for-bug compatibility with RHEL. This is important or a variety > of reasons, particularly including reproducibility. > 2. Minor release milestones to stabilize branches. Reproducibility *is* important. Minor releases, however, are not necessary to achieve reproducibility, nor are they sufficient. Red Hat does fix bugs within minor releases: https://access.redhat.com/errata/#/?q=&p=1&sort=portal_publication_date%20desc&rows=10&portal_advisory_type=Bug%20Fix%20Advisory&portal_product=Red%20Hat%20Enterprise%20Linux Therefore, if you operate an environment where reproducibility in your test environment is a critical feature, you should be testing and deploying on the *same* underlying OS. Maybe that means you test and then deploy gold images, or containers. Immutable infrastructure is popular for good reason. If you have mutable systems, there's no mechanism to keep CentOS and RHEL packages perfectly in sync. You're not actually getting reproducible builds out of that setup, even if you think you are. It doesn't make a good argument in favor of keeping CentOS. > I don't agree with you that CentOS cannot be two things. It's quite > normal for most projects to have an "upstream" and a "LTS" branch. Fedora is the upstream branch. CentOS Stream is the LTS branch. RHEL is the LTS branch with point releases (semantic versioning) and vendor support.
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