On 12.01.2014 22:34, Alek Paunov wrote:
So, finally on that road we have:
...
- NTH: remote SCC DB for the instance, - NTH: SCC local state for multiple instances (e.g. deployment nodes or local containers) kept in the same SCC DB - NTH: SCC local state inheritance between instances
Another closely related topic is the system snapshotting or in other words - system "flavors" variants/subvariants tree.
Even before the btrfs magic, we have at hand wonderful snapshot mechanisms - LVM, qcow2+qemu-nbd-connect, ceph rbd, etc. Probably, LVM thinp currently is the best for the purpose of supporting tree of system variants. Once we apply FS snapshotting, combined with the SCC NTHs above, there are at least two appealing use-cases: - reusing one base e.g. F20 server container image for both the host and the incompatible containers (e.g. when one application requires nodejs 0.8 and another nodejs 0.10) - easy testbed for resolving the upgrade path for an existing, possibly non "pure Fedora" server with care about the deployed services. -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
