Hi,
On 11/20/25 07:17, Adrian Sevcenco wrote:
Hi! Is there any possibility to use cephadm without the container
based tooling?
(so to use bare-metal, with the packages directly installed on the
machine)
If not, is there something technical that prevents it to happen or just
that there is a policy that container based deployment is the only
best way to do it
therefore cephadm will only use it this way?
I ask this in the context of finding out that ceph-ansible is
deprecated and
that it should not be used, but i still need to use ansible for
management
and i think (so without factual experience) that bare metal services
would be easier to manage after doing by hand deployment with cephadm
Just my 0.02 euro:
I'm not exactly a fan of containers for critical infrastructure, and
adding another layer to an already complex system is not making your
life easier. Our clusters are still running on bare metal and manual /
ansible based deployment, but we will probably change this with Tentacle.
There's a simple reason for it: choice.
With a container based approach, it doesn't matter which linux
distribution and which exact release you want to use. And the subtle
differences between distribution, slightly varying library packages etc.
makes the life of a developer really hard. This is were containers
shine. You build them once with the distribution that fits your needs,
and do not care about the deployment on the hosts. Container just works[tm].
Even within the red hat ecosystem you will find enough divergence that a
single set of packages won't be sufficient, especially if you also have
to support older releases. And speaking of older releases: these often
to not provide the necessary recent libraries version you need for ceph.
So containers also solve this problem.
So you already answered your own question: container bvased deployment
is probably the only best way to do it.....given the heterogeneous linux
ecosystems.
Best regards,
Burkhard
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