[ceph-users] ceph-disk is now deprecated

Wido den Hollander wido at 42on.com
Tue Nov 28 04:27:13 PST 2017


> Op 28 november 2017 om 12:54 schreef Alfredo Deza <adeza at redhat.com>:
> 
> 
> On Tue, Nov 28, 2017 at 3:12 AM, Wido den Hollander <wido at 42on.com> wrote:
> >
> >> Op 27 november 2017 om 14:36 schreef Alfredo Deza <adeza at redhat.com>:
> >>
> >>
> >> For the upcoming Luminous release (12.2.2), ceph-disk will be
> >> officially in 'deprecated' mode (bug fixes only). A large banner with
> >> deprecation information has been added, which will try to raise
> >> awareness.
> >>
> >
> > As much as I like ceph-volume and the work being done, is it really a good idea to use a minor release to deprecate a tool?
> >
> > Can't we just introduce ceph-volume and deprecate ceph-disk at the release of M? Because when you upgrade to 12.2.2 suddenly existing integrations will have deprecation warnings being thrown at them while they haven't upgraded to a new major version.
> 
> ceph-volume has been present since the very first release of Luminous,
> the deprecation warning in ceph-disk is the only "new" thing
> introduced for 12.2.2.
> 

Yes, but deprecating a functional tool in a minor release? Yes, I am aware that ceph-volume works, but suddenly during a release saying it's now deprecated?

Why can't that be moved to the M release? Leave ceph-disk as-is and deprecate it in master.

Again, I really do like ceph-volume! Great work!

Wido

> >
> > As ceph-deploy doesn't support ceph-disk either I don't think it's a good idea to deprecate it right now.
> 
> ceph-deploy work is being done to support ceph-volume exclusively
> (ceph-disk support is dropped fully), which will mean a change in its
> API in a non-backwards compatible
> way. A major version change in ceph-deploy, documentation, and a bunch
> of documentation is being worked on to allow users to transition to
> it.
> 
> >
> > How do others feel about this?
> >
> > Wido
> >
> >> We are strongly suggesting using ceph-volume for new (and old) OSD
> >> deployments. The only current exceptions to this are encrypted OSDs
> >> and FreeBSD systems
> >>
> >> Encryption support is planned and will be coming soon to ceph-volume.
> >>
> >> A few items to consider:
> >>
> >> * ceph-disk is expected to be fully removed by the Mimic release
> >> * Existing OSDs are supported by ceph-volume. They can be "taken over" [0]
> >> * ceph-ansible already fully supports ceph-volume and will soon default to it
> >> * ceph-deploy support is planned and should be fully implemented soon
> >>
> >>
> >> [0] http://docs.ceph.com/docs/master/ceph-volume/simple/
> >> _______________________________________________
> >> ceph-users mailing list
> >> ceph-users at lists.ceph.com
> >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com


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