Meetups/Infra/2025-08-04

nb k8s cluster experiment (with DigitalInfraWG), caddy caddy caddy, nix, and chat services we might like NB to host (zulip)

Introductions

• [name] - [background]. [goals for meetup, or interests to explore]

• Loren -- liek to talk about infra -- might talk about nix, on macOS this week
• Wheezy -- hacker, talk about encryption, locks -- recently learning about nvidia, cuda.
• Alex -- ML stuff for work, many interests none for this week
• Greg -- programmer, home lab, shared a copy lab thing
• Chris -- design & sw, messing about with containers
• Wolf -- this week, upgrading web server to ubuntu -- ansible palybook from last time has made things great
• Frank -- first time, saw Elan's call for participation, sounds really fun
• Eric -- also helping with kubes, setting up the gpu server
• Elan -- focusing on nb infra grand rebuild, locked cabinet if you run a service
• Kevin -- working on a few ML projects recently, run into some Nvidia / driver problems
• Doug -- self-hosting, spinning up sites & apis, on own hardware
• Zacchae -- recently found out about Tahoe-LAFS, distributed database

Lesson or Demo

• Read aloud: clarify for meetup. We are taking notes in a riseup pad (or I am--help appreciated, and links). We have meeting notes posted to the wiki. noisebridge.net, search Infra, or Meetups/Infra. (the Infrastructure page has a disambiguation link.)
• Shell, web services, self-hosting, networking!

• Cluster -- status & vision

NB infra: fragmented hardware, management. Last upgraded a while ago. 
Noisebell is hosted elsewhere, not here.
NB devops is limited to ~ 2 poeple. Let's distribute that knowledge and skill people into related gigs.
What if we just scaled more, 4 pis, what if 40k.

berry1.noise

Discord > Project Forum > Raspbery Pi Project thread.  "bramble" name suggested, among many.

• Ceph, k8s. From podcast, "Ceph is operated, not shipped."

• Nix

• Setting up an API in one go

• Tahoe-LAFS -- high-redundancy fs, encrypted blocks,
  • comparables?

• • ORAM -- oblivious ram -- for user database

• Setting up an api -- what can you set up quickly
• Caddy -- the ease, the speed

https://github.com/noisebridge/infrastructure/blob/2b1fcb8c6af487c0f702b438aeef216aa3cbc236/templates/caddy/m6/Caddyfile.j2

https://github.com/noisebridge/infrastructure/blob/2b1fcb8c6af487c0f702b438aeef216aa3cbc236/templates/caddy/m3/Caddyfile.j2

• Git-push autobuild a site.

Takeaways

• that's a lot of tabs

• Caddy, caddy
• Hosting chat services
  • Discourse forum software
  • Zulip chat server (
• R pi k8s cluster was redundant, came back up
• Docker valuable to use -- mediabridge & travis.

Questions, Discussion, or Coworking

• [Issue]

For next time

Readings & Exercises

• Readings
• Exercises

Join online

• Try it yourself!
  • Join libera.chat #nb-meetup-infra

https://www.noisebridge.net/wiki/Meetups/Infra https://www.noisebridge.net/wiki/Meetups/Infra