Standards for provisioning of VMs and physical hosts.

Alpine Linux

Our standard loadout uses Alpine Linux for all hosts and guests.

• TODO: ns1 and ns2 are on Debian, they need to be reprovisioned (add an ns3 while we're at it?)

Physical hosts

VM hosts

Our current VM hosts won't scale much further. We need to figure out a better hardware loadout for these going forward.

High performance VM hosts

For performance critical services (presently only git.sr.ht demands this), we do have a standard loadout:

• AMD EPYC 7402 (24 cores, 48 threads)
• Micron 36ASF2G72PZ-2G6F1 RAM (4x, 64G total)
• 1x NVMe for host system, ext4; WD Black 1T
• 4x SSD on SATA, direct passthrough to guest

This is spec'ed to CPU and I/O intensive workloads.

Build hosts

builds.sr.ht uses dedicated build runners. Our current standard is:

• AS-1013S-MTR SuperMicro barebones
• AMD EPYC 7281 (16 cores, 32 threads)
• M393A4K40CB2-CTD RAM (4x, 128G total)
• 1x NVMe for root, ext4; WD Black 1T
• 3x HDD on SATA for /var, ZFS; 1T each, various vendors/models

This configuration supports up to 16 parallel build slots.

Virtual machines

There is no standard loadout - tune the specifications for the task at hand. Generally limit 1 VM == 1 service, and tune accordingly.