Spyke

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How do I access my services from outside?

I went a different path than the VPN route that seems popular in the other comments...

I use a reverse proxy (caddy) with wildcard SSL (so all my hostnames aren't in the public cert registry) plus port knocking. So normally no outside IPs are allowed to access my internal services, but I can knock and then access anything for a while. Working well so far.

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Cloudflare LE certificate management?

This isn't a cloudflare limitation. It's a TLS limitation. It was a conscious decision not to support multi-level wildcards. You won't find a service that supports it. Most people get around this by just not using TLS certs like this. You can encode your multi-level name spacing in 1 level So instead of something like svc1.svcgroup.dev.domain.org You can do it like svcgroup-svc1.dev.domain.org

Never heard of a tool to get around this TLS limitation. There are tools that manage lots of certs (cert-manager in k8s comes to mind). If you had a more concrete example it might help people to suggest solutions.

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What does your current setup look like?

Internet:

  • 1G fiber

Router:

  • N100 with dual 2.5G nics

Lab:

  • 3x N100 mini PCs as k8s control plane+ceph mon/mds/mgr
  • 4x Aoostar R7 "NAS" systems (5700u/32G ram/20T rust/2T sata SSD/4T nvme) as ceph OSDs/k8s workers

Network:

  • Hodge podge of switches I shouldn't trust nearly as much as I do
  • 3x 8 port 2.5G switches (1 with poe for APs)
  • 1x 24 port 1G switch
  • 2x omada APs

Software:

  • All the standard stuff for media archival purposes
  • Ceph for storage (using some manual tiering in cephfs)
  • K8s for container orchestration (deployed via k0sctl)
  • A handful of cloud-hypervisor VMs
  • Most of the lab managed by some tooling I've written in go
  • Alpine Linux for everything

All under 120w power usage

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Caddy + DeSEC.io + DNS Challenge [Solved]

Just as an aside, you're half way to being able to use wildcard certs, you might as well just do the last bit of work so the domain names you're using are a little less public. Let's Encrypt puts every domain name on every cert in a public database. I've seen much less random probing of my services since moving to wildcards

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ARM SBC Replacement for my k3s cluster

The only Radxa I'd bother with is the Rock 5 and for the price, I'd probably just go with rpi5 (unless you like to tinker... a lot). That's coming from someone that owns 3 Rock5's. The new Orion board looks interesting, but if it's like any other Radxa products it'll be 2+ years before it gets decent software support.

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What's it going to take to truly stop the US?

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We haven't been dealing with Trump for as long as Venezuela has been dealing with Maduro (and Chavez before him). Give us a couple more decades and I'm sure you'd see more people happy to see him "arrested" by a foreign power. Fwiw, I'd be happy to see it tomorrow, but I know a lot of my fellow USians wouldn't take so kindly. Not because they actually like Trump, but because it'd be a sobering reminder that we're no longer top of the food chain