https://lemmy.world/post/34029848/18647964
- Hypervisor: Debian stable + libvirt or PVE if you need clustering/HA
- VMs: Debian stable
- podman if you need containerization below that
You can migrate VMs live between hosts (it’s a bit more work if you pick libvirt, but the overhead/features or proxmox are sometimes overkill, libvirt is a bit more barebones, each has its uses), have a cluster-wide L2 network, use a machine as backup storage for others… use VM snapshots for rollback, etc. Regardless of containerization/orchestration below that, a full hypervisor is still nice to have.
I deploy my services directly to the VM or as podman containers in said VMs. I use ansible for all automation/provisioning (though there are still a few basic provisioning/management to bootstrap new VMs, if it works it works)
A full-blown samba domain is extremely overkill if you don’t have a fleet of windows machines.
You can get centralized user management with a simple LDAP server or similar, no need for a domain.
Also, snapshots-based backups have limited uses (can’t easily restore only a single file, eats quite a bit of storage). The only times where I actually needed backups were because I fucked up a single application or database, don’t want to rollback the whole OS/data drive for that.