automatic auth for proxmox backup client

[CAHEKs]

I have linux-based share and want backup it using pbs. Install proxmox backup client and use script :
proxmox-backup-client backup root.pxar:/data/Share --repository 10.0.62.80:files
It not working by crontab, because need root password.
I try add ssh key to backup server, but it not helped to me.

 

[t.lamprecht]

Hi,

The client does not uses ssh, so that won't work.
You can set the environment variables for user and password:
https://pbs.proxmox.com/docs/backup-client.html#environment-variables

For automatic auth I'd recommend using API tokens, they can be easily revoked and limited in privileges.

 

[CAHEKs]

#PBS_PASSWORD=XXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXXXXXXXXX proxmox-backup-client backup root.pxar:/data/Share --repository root@pam!backtoken@10.0.62.80:files

Starting backup: host/vm-dc/2021-05-04T10:31:11Z
Client name: vm-dc-gub
Starting backup protocol: Tue May 4 17:31:11 2021
Error: backup owner check failed (root@pam!backtoken != root@pam)

Why I get this error?

For automatic auth I'd recommend using API tokens, they can be easily revoked and limited in privileges.

 

[t.lamprecht]

As you made already some backups in that group, and a token is a sub set of a user, you need to change that groups owner to the token you want to use.

That can be done in the web-interface, or with the client's change-owner command.