Backup client encryption not working inside Docker container

[seteq]

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?

# 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!

 

[ggoller]

Hi!
Which image are you using exactly?
It looks like the client is not able to get the random data with `getrandom` (https://www.man7.org/linux/man-pages/man2/getrandom.2.html)...