PBS: unable to create pull sync job

[Uwe Sauter <uwe.sauter.de@gmail.com>]

Dear all,

as there is no separate list for the Proxmox Backup Server I hope to find some help here.

TL;DR: On the pulling server, I cannot see the datastore that is the source for the job. Permissions?


Situation:
I have two servers named corvus and cygnus.

corvus:
- corvus is the main backup server where my PVE cluster puts the daily backups.
- The datastore has different namespaces for daily and weekly backups.
- There are two additional users configured, one for the PVE cluster (pve@pbs), the other one for
cygnus (cygnus@pbs). Both are managed by the Proxmox Backup authentication server.
- cygnus@pbs has the RemoteSyncOperator permissions on the corvus datastore.

cygnus:
- Shall pull the weekly backups for long term storage.
- Datastore has currently no namespaces yet.
- Has no additional users (yet).
- corvus was added to the "remotes" using the credentials from cygnus@pbs on corvus.

So, when I try to create a pull sync job on cygnus' datastore I can select Source Remote "corvus"
but I cannot select a Source Datastore.


My impression is that either the permissions for cygnus@pbs on corvus are wrong or that the
communication between the two hosts does not work.

Unfortunately I couldn't find any logs regarding the communication between the hosts, neither
positive nor negative.

So I assume that the issue lies with the permissions.

As I am currently playing around as root@pam I don't think that the local permissions are relevant.


Any suggestions what permissions are missing on cygnus@pbs on corvus? Any ideas on debugging this?


Thanks, I appreciate any input.

	Uwe