instead of having multiple regexes in various places for the name,
define a 'SERVICE_REGEX' in PVE::Ceph::Services, and use that
everywhere in the api where we need it
additionally limit new sevices to 200 characters, since
systemd units have a limit of 256 characters[0] (including suffix), and
200 seems to be enough.
users can now create ceph services on machines with hostnames
longer than 32 characters
0: https://www.freedesktop.org/software/systemd/man/systemd.unit.html
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
It makes more sense to have it there, especially since we want to
split out the service parts into a seperate file.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Allow to create, list and destroy and Ceph Metadata Server (MDS) over
the API and the CLI `pveceph` tool.
Besides setting up the local systemd service template and the MDS
data directory we also add a reference to the MDS in the ceph.conf
We note the backing host (node) from the respective MDS and set up a
'mds standby for name' = 'pve' so that the PVE created ones are a
single group. If we decide to add integration for rank/path specific
MDS (possible useful for CephFS with quite a bit of load) then this
may help as a starting point.
On create, check early if a reference already exists in ceph.conf and
abort in that case. If we only see existing data directories later
on we abort but do not remove them, they could well be from an older
manual create - where it's possible dangerous to just remove it. Let
the user handle it themself in that case.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Co-authored-by: Alwin Antreich <a.antreich@proxmox.com>
