No Proxmox Backup Client for RHEL? Hold My Container Runtime

I have a server running Red Hat Enterprise Linux 10 on aarch64, because apparently choosing an enterprise distribution was not enough. I also wanted the architecture to make package availability interesting. I will call it server01 here. Hostnames and repository addresses in the examples and log excerpts are anonymized. I also have a Proxmox Backup Server. The goal was simple: back up the machine to PBS, with encryption and incremental uploads, using the infrastructure I already have. The missing piece was a convenient native Proxmox Backup Client package for this particular combination of operating system and architecture. There was, however, a container image with the client inside it. You can probably see where this is going. Table of Contents Table of Contents A Packaging Problem With a Container-Shaped Solution The Command The SELinux Incantation A Stable Name and an Ephemeral Container The Part Where It Actually Works “Full Machine” Needs an Asterisk PostgreSQL Does Not Get a…