The substrate machines are now rendered from the live k3s nodes (arch, cpu,
memory, GPU, k3s version), read in-cluster via the mounted ServiceAccount with a
stdlib HTTP client (no client-go) and a 30s cache; falls back to the authored
substrate whenever the cluster is unreachable. Placement per the homelab decision
"in-cluster only for in-workload ops" — a running web app rendering live data fits.
HostsFromNodes parser built test-first. RBAC (read-only node-reader SA) shipped in
infra k3s/apps/cad-atlas/.
Verified: go build/vet/lint(0)/test green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The atlas no longer hand-maintains its content. Authored data lives in one place
(internal/atlas/atlas.json); the Go layer overlays sourced facts and serves the
result at /api/atlas.json; the frontend fetches + renders (inline arrays kept only
as an offline fallback). First generated source: the CI/CD stage's nodes are parsed
from the repo's own .gitea/workflows/cd.yml — so the viz shows the pipeline that
actually runs (guard/check/build/deploy), dropping the aspirational var-go/oath-gate
node that isn't wired yet. That's the point: it can't drift from the real pipeline.
New internal/atlas package (JobsFromWorkflow, Build) built test-first. Adds
gopkg.in/yaml.v3 (justified: parsing the workflow YAML; stdlib has no YAML).
Verified: go build/vet/lint(0)/test green; /api/atlas.json → 9 stages, CI = real
jobs; frontend renders from the fetch (screenshot).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>