Backup client encryption not working inside Docker container

seteq

Renowned Member
Dec 15, 2015
21
3
68
40
Hello,

I need to run the proxmox-backup-client inside a debian docker container, but the encryption-related stuff does not work at all.
I can run backups, restores and anything else without any issues.
Is there any requirement I am missing here?

Code:
# proxmox-backup-client version                                                                                                        
client version: 3.0.4                                                                                                                                  
server version: 3.1.2

# proxmox-backup-client key create test.key                                                                                           
Error: Function not implemented (os error 38)

Thanks!