There are a lot of benefits to containerization that is hard to do without it.
Finer grained ability to allocate resources to services. (This process gets 2g of ram and
1 cpu)
Security is better where only minimal software is available within the container so on
service compromise its harder to escape.
Ability to run exactly what was tested / released by upstream. Fewer issues with version
mismatches. Especially useful across different distros.
Easier to implement orchestration on top which enables some of the advanced features such
as easy to allocate iscsi/nfs volumes. Ceph is finally doing so now that it is focusing on
containers.
And much more.
________________________________________
From: Teoman Onay <tonay(a)redhat.com>
Sent: Wednesday, March 17, 2021 10:38 AM
To: Matthew H
Cc: Matthew Vernon; ceph-users
Subject: [ceph-users] Re: ceph-ansible in Pacific and beyond?
Check twice before you click! This email originated from outside PNNL.
A containerized environment just makes troubleshooting more difficult,
getting access and retrieving details on Ceph processes isn't as
straightforward as with a non containerized infrastructure. I am still not
convinced that containerizing everything brings any benefits except the
collocation of services.
On Wed, Mar 17, 2021 at 6:27 PM Matthew H <matthew.heler(a)hotmail.com> wrote:
There should not be any performance difference between
an un-containerized
version and a containerized one.
The shift to containers makes sense, as this is the general direction that
the industry as a whole is taking. I would suggest giving cephadm a try,
it's relatively straight forward and significantly faster for deployments
then ceph-ansible is.
________________________________
From: Matthew Vernon <mv3(a)sanger.ac.uk>
Sent: Wednesday, March 17, 2021 12:50 PM
To: ceph-users <ceph-users(a)ceph.io>
Subject: [ceph-users] ceph-ansible in Pacific and beyond?
Hi,
I caught up with Sage's talk on what to expect in Pacific (
https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.youtu…
) and there was no mention
of ceph-ansible at all.
Is it going to continue to be supported? We use it (and uncontainerised
packages) for all our clusters, so I'd be a bit alarmed if it was going
to go away...
Regards,
Matthew
--
The Wellcome Sanger Institute is operated by Genome Research
Limited, a charity registered in England with number 1021457 and a
company registered in England with number 2742969, whose registered
office is 215 Euston Road, London, NW1 2BE.
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