jakman85andClaude Opus 5 9f59c36000 feat(ansible): node_health role — read-only hardware health for prod + dev nodes
Operator ask: implement the roles needed to check prod node hardware health, and run
them to find out our state. This is that role; the run's findings are below.

roles/node_health is a read-only sibling to cluster_verify (cluster health vs hardware
health), styled after node_baseline. One unprivileged collector script does the work in
a single SSH round trip — reading /sys/class/dmi, thermal + hwmon, EDAC, cpufreq +
thermal_throttle, /proc/pressure, /sys/block incl. SCSI ioerr/iotmo counters, lsblk,
lscpu, mounts + statvfs, per-NIC stats, resolv.conf.

THE DESIGN POINT: an unreadable field is emitted as null WITH A RECORDED REASON, never
as zero. The summary ends with a "NOT READ (and why) — these are UNKNOWNS, not passes"
section. A fake zero on a reallocated-sector count is exactly the kind of false green
this project refuses. 22 checks report PASS/WARN/FAIL/SKIP/INFO; every SKIP says why.
Report-only by default; thresholds live in defaults/main.yml.

Portable across bare metal AND VMs — validated against k3s-prod-1 (bare metal, no root)
and k3s-dev-1 (VM, root). VM-absent things (SMART on virtio, coretemp, EDAC) skip
cleanly, and iSCSI/Longhorn volumes are split out of the physical-disk set so a live
replica is never mistaken for a spare device.

playbooks/node-health.yml takes its target group as a variable (-e node_health_hosts=
k3s_prod), deliberately unlike the other playbooks that hardcode k3s_servers — see the
group-name gap already flagged in hosts.ini.

Two become facts found the hard way and documented in the role: a group_vars
`ansible_become: true` OUTRANKS `become: false` as a play/task keyword, so unprivileged
tasks must override the variable; and `failed_when: false` does NOT catch "Missing sudo
password" — only `ignore_errors` does.

FIRST RUN, k3s-prod-1, 2026-08-31: 0 FAIL · 3 WARN · 12 PASS · 3 SKIP · 4 INFO.
Box is healthy, cool and unstressed: i7-9700T 8C/8T, VT-x + /dev/kvm (KubeVirt OK), zero
throttle events, hottest sensor 33C, PSI 0.00 across the board, 31.1 GiB RAM, eno1 up at
1000 Mb/s, BIOS R21 02.26.00, no reboot pending.

DRIVE HEALTH IS STILL UNKNOWN — the headline. SMART did not run, blocked TWICE over: no
vaulted ansible_become_password for prod, AND smartmontools is not on the node at all
(node_baseline has never run there). Power-on hours, wear, reallocated/pending sectors
and drive temperature all remain unmeasured on a ~2011 consumer SSD.

WARNs: kernel ioerr_cnt=6 on sda (read cautiously — four freshly attached iSCSI disks on
dev each showed a flat 7, suggesting a fixed per-device discovery cost, not media
trouble; attribution needs dmesg/root); 0.95 GiB swap still active (node_baseline does
the swapoff); one IPv4 resolver only (the other two upstreams are IPv6 Google), which
refines rather than resolves the DNS-SPOF finding.

ESCALATION — ECC status is UNKNOWABLE on this hardware: /sys/devices/system/edac/mc
exists but no controller is bound. Non-ECC consumer RAM. Silent memory corruption on a
prod node would be undetectable. Recorded as a SKIP with reason, not a pass.

Serves: R-ENV-01, R-ENV-03, R-OBS-04. Task: T-7.1.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-08-31 23:20:25 -05:00

home-network-k3s-impl

Implementation of the home k3s + Longhorn platform. This repo holds the reconciled artifacts (Flux config, Kustomize overlays, KubeVirt/Helm manifests, ServiceDefinitions, Kyverno policies, Chainsaw conformance tests, CI). It is driven by — and subordinate to — the read-only specification at ../home-network-k3s.

Rules (from the spec — non-negotiable)

  • The spec is read-only. Never modify anything under ../home-network-k3s. Implement against it; escalate spec problems, don't edit them (spec AGENTS.md §11, R-TEST-06).
  • Done = a green, reproducible, requirement-tagged conformance test — never "merged," never a manual demo (spec docs/14, agents/definition-of-done.md).
  • No work on main. Every change is a feature branch merged into main (spec CONTRIBUTING.md).
  • No plaintext secrets — SOPS-encrypted only (spec docs/07).
  • Phase discipline — only build what the active roadmap phase authorizes (spec roadmap/phases.md).

Layout

infra/          node provisioning: OpenTofu (Proxmox VE) + cloud-init + Ansible, and the
                pinned dev container that carries the whole toolchain
bootstrap/      one-time cluster bootstrap: Flux install, SOPS/age key, host Gitea
platform/       platform CONTROLLERS (Flux HelmReleases / operator bases): kyverno, cilium,
                longhorn, external-snapshotter, cert-manager, externaldns, gateway, coredns,
                vpn-egress, monitoring, cnpg, keycloak, oauth2-proxy, kubevirt
platform-config/ platform CONFIGS — the custom resources of the CRDs installed above
                (ClusterIssuers, Gateway, Kyverno policies, KubeVirt/CDI CRs, Keycloak CRs).
                Split out because CRs and the CRDs they use cannot apply in one pass.
apps/           application tier, reconciled as dependency-ordered WAVES:
                  wave-0/ wave-1/ wave-2/   rendered container apps (see DESIGN-waves.md)
                  vms/                      KubeVirt VirtualMachines (non-gating tier)
catalog/        ServiceDefinition entries (the onboarding surface) + render.py
schemas/        ServiceDefinition JSON Schema + renderer contract
clusters/       Flux entrypoints + dev/ and prod/ overlays
conformance/    Chainsaw behavior/conformance suite + harness + coverage report
ci/             the gate as scripts (lint · schema · Kyverno L0 · L1 render · decision)
.gitea/         Gitea Actions CI running that gate on an in-cluster runner

Status

Roadmap phases 0–6 are delivered and deployed on the dev cluster; Phase 7 (prod) is not open — clusters/prod is a design-only overlay.

Phase Delivered
0 Foundations ServiceDefinition schema + renderer, Kyverno L0 gate, conformance harness, CI
1 Cluster bring-up 3-node k3s HA on Proxmox VE (192.168.1.50/.51/.52), Cilium, Flux, SOPS
2 Platform core Cilium · Longhorn · cert-manager (LE-prod wildcard) · ExternalDNS · Gateway API · split-horizon CoreDNS
3 Egress / VPN ADR-0015 node-level OpenVPN split-tunnel + Cilium egress-gateway steering + host kill-switch
4 Observability kube-prometheus-stack · Loki · Alloy · Alertmanager. Velero still blocked on OQ-BKP; image-automation authored but disabled
5 IaaS KubeVirt + CDI on real nested KVM; live-migratable RWX VM storage. The UniFi VM runs, but UniFi OS Server is not yet installed in the guest
6 Identity + CI Keycloak (Operator + CNPG) · oauth2-proxy forward-auth · Grafana OIDC · kubectl OIDC SSO with group→RBAC · in-cluster Gitea Actions merge gate

Conformance: 36 / 51 requirements covered (70.6%), 15 gaps, 1 safety-critical gap (R-STATE-02, Longhorn node-loss). Regenerate with ./conformance/run.sh --coverage-only; the full report is conformance/_artifacts/coverage/coverage.md.

The running narrative — decisions, root causes, incidents, follow-ups — is DECISIONS-LOG.md. It, not this table, is the authoritative record.

Working on this repo

Everything the gate needs is baked into the pinned dev container — do not install the toolchain on the host:

infra/devcontainer/dev.sh build            # once
infra/devcontainer/dev.sh run make -C ci gate   # the same gate CI runs
infra/devcontainer/dev.sh                  # interactive shell (sops, flux, kubectl, tofu, ansible)

The container mounts the repo at /work, your age keyring, and the sibling spec repo read-only so the spec-immutability check can actually run. See infra/devcontainer/README.md.

A green run prints MERGE GATE: PASS. The L2/L3 conformance layers stay SKIPPED unless CLUSTER_AVAILABLE=true — the static gate never pretends to have run them.

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