Files
vps-k8s/docs/network.md
T
Maxwell MorrisandClaude Sonnet 5 110bd97cca Move to a three-node cluster with a Talos VIP; add Longhorn
Every node is now both control plane and worker, giving real tolerance
for losing any single machine (etcd quorum needs 3, not 1). A Talos VIP
gives the cluster one stable address regardless of which node answers.

Also pre-installs Longhorn for replicated storage, backed by a Talos
UserVolume on each node's second disk (>=900GB, non-system) rather than
the default path — mirroring the pattern from the homescale repo.

Docs renumbered to make room for 06-longhorn.md; checklist, glossary,
network map, and CLAUDE.md's guided-bootstrap instructions updated to
match, including asking the user for node IPs, VIP, and disk info before
generating any Talos config.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-22 18:25:38 +01:00

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2.4 KiB
Markdown

# Network map
Every real IP address this cluster hands out, and exactly what's reachable
there. This file isn't a template with the rest of the repo — it's a log
of *your* actual setup, meant to be updated every time an address is
assigned or changed, so you (or Claude) never have to reverse-engineer
"wait, what's running on .241 again?" from `kubectl` output.
> **Keep this current.** If you're working with Claude and an IP changes —
> a new app gets a `LoadBalancer` address, the MetalLB pool is resized,
> Argo CD's address changes — ask it to update this file, or just point it
> here after any networking change. See `CLAUDE.md` for the standing
> instruction that tells Claude to do this on its own when it makes such a
> change itself.
## The three nodes and the VIP
None of these are from the MetalLB pool below — they're the machines
themselves and the shared address Talos elects between them. Set in
[`talos/README.md`](../talos/README.md); see
[`docs/02-talos-bootstrap.md`](02-talos-bootstrap.md) for what the VIP is
and why it's separate from any one node's address.
| Address | What | Port | URL |
|---|---|---|---|
| `EDIT ME` | Node 1 | 6443 | `https://EDIT ME:6443` |
| `EDIT ME` | Node 2 | 6443 | `https://EDIT ME:6443` |
| `EDIT ME` | Node 3 | 6443 | `https://EDIT ME:6443` |
| `EDIT ME` | Cluster VIP (use this one, not a node's own address) | 6443 | `https://EDIT ME:6443` |
## MetalLB pool
| | |
|---|---|
| Range | `EDIT ME — e.g. 192.168.1.240-192.168.1.250` |
| Configured in | [`apps/metallb/templates/ipaddresspool.yaml`](../apps/metallb/templates/ipaddresspool.yaml) |
## Allocated addresses (from the MetalLB pool)
| Address | What | Namespace | Port(s) | URL | Source |
|---|---|---|---|---|---|
| `EDIT ME` | Argo CD UI/API (`argocd-server`) | `argocd` | 443 | `https://EDIT ME` | Patched to `LoadBalancer` by hand — see [`docs/05-metallb.md`](05-metallb.md) |
| `EDIT ME` | Demo app | `demo` | 80 | `http://EDIT ME` | [`apps/demo/service.yaml`](../apps/demo/service.yaml) |
Add a row here every time you add a new app with a `LoadBalancer` Service
(see [`docs/08-adding-new-apps.md`](08-adding-new-apps.md)). Leave the URL
column's port number off only when it's the protocol default (80 for
`http://`, 443 for `https://`) — include it otherwise.
## Free in the pool
Addresses from the range above that aren't spoken for yet. Update this
alongside the table above so it's obvious at a glance what's safe to hand
to the next app.
- `EDIT ME`