Am 02.07.20 um 19:57 schrieb Oliver Freyermuth:
Dear Cephalopodians,
as we all know, ceph-deploy is on its demise since a while and essentially in
"maintenance mode".
We've been eyeing the "ssh orchestrator" which was in Nautilus as the
"successor in spirit" of ceph-deploy.
While we have not tried it out just yet, I find this module seems to be gone without a
trace in Octopus.
There's still an Orchestrator module, but this seems to work "only" with
containers.
Is this true, or is there still an SSH orchestrator capable of bare-metal operation in
Octopus (or are there plans to have something like this)?
While I see many advantages of containers in many areas, and certainly also for smaller
setups or test setups with Ceph,
as any technology, they come with their own problems.
Example issues (which all can be solved, but require extra work from the administrator)
are:
- Operation on machines without connectivity to the internet (you'd need to mirror
the containers or run your own registry),
- Ensuring automated security updates both outside the containers and inside the
containers, or re-pull them regularly (and monitor that),
- Integrate with existing logging and configuration management systems,
- Potential hardware issues, such das InfiniBand RDMA.
There's surely more (and there are also as many benefits), and as I said, all can be
solved; the point I want to make is:
Containers are not the best solution in all environments and also not for all admins.
So my question is: Is there something like the SSH orchestrator still available?
I guess essentially the cephadm orchestrator does something similar behind the screnes,
with the added bells and whistles to manage the containers.
Of course, a reduced feature-set would be expected (e.g. no "ceph orch
upgrade"), but it would jump into the hole ceph-deploy has left.
we're renamed the SSH orchestrator into cephadm. See
https://github.com/ceph/ceph/pull/32193 for the
corresponding pull request.
Hope that helps,
Sebastian
Maybe this is as easy as setting a configuration knob? Or is it also possible to switch
to a "bare-metal edition" of cephadm (which might rely on users
or existing configuration management to install the packages, e.g.)?
Cheers,
Oliver
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