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Oskar Kapala 5e97b4e448 fix(supervisor): atomic writes + skip cycle on unreadable world state
Two independent fixes for the false-alarm storm caused by race-condition
reads of truncated world state files:

1. Atomic writes: _atomic_write_json (write→fsync→os.replace) replaces
   all bare open('w')+json.dump calls in supervisor and executor, so the
   action-file pipeline is never visible in a half-written state.

2. Resilient loader: _load_actual_state now returns False when any world
   state file fails to parse (empty or truncated mid-write). reconcile()
   skips the entire drift check on False instead of treating {} as "all
   services missing". actual_state retains its last-known-good values so
   a single bad cycle does not wipe accumulated context.

   Before: parse error → raw[key]={} → all desired services missing →
     wall of redeploy actions → drift_resolved_auto churn on next cycle.
   After:  parse error → WARNING logged → cycle skipped → no actions.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-03 12:26:59 +02:00
backups/zigbee Add Zigbee coordinator backup 2026-05-14 18:24:26 +02:00
docs docs: add planner-agent docs and session summary 2026-05-27 2026-05-27 22:35:59 +02:00
dotfiles add shared zshrc 2026-05-10 20:52:44 +02:00
hosts feat(piha): brain-watchdog — external watchdog for control-plane 2026-06-01 17:54:36 +02:00
inventory feat(piha): brain-watchdog — external watchdog for control-plane 2026-06-01 17:54:36 +02:00
scripts fix(observer): atomic writes for world state files 2026-06-03 12:26:49 +02:00
services fix(supervisor): atomic writes + skip cycle on unreadable world state 2026-06-03 12:26:59 +02:00
.codex Document current homelab state 2026-04-15 17:37:25 +02:00
.gitignore chore: gitignore *.egg-info, remove committed egg-info 2026-05-29 12:26:57 +02:00
CLAUDE.md docs(claude): add Definition of Done for services (smoke test + pytest) 2026-06-01 20:38:39 +02:00
codex_context Add session context state 2026-04-20 22:10:39 +02:00
codex_context.yaml add shared context lock 2026-05-05 17:25:50 +02:00
deploy_agent.py Add deploy escalation output 2026-04-22 22:08:26 +02:00
ollama_client.py Initial shared homelab agent workspace 2026-05-03 19:37:40 +02:00
README.md docs: add planner-agent docs and session summary 2026-05-27 2026-05-27 22:35:59 +02:00
start-aider.sh Initial shared homelab agent workspace 2026-05-03 19:37:40 +02:00
start-codex.sh Initial shared homelab agent workspace 2026-05-03 19:37:40 +02:00
sync-context.sh add shared context lock 2026-05-05 17:25:50 +02:00
tech-debt.md docs: add tech-debt.md, forgejo_runner temp disabled 2026-05-21 10:37:42 +02:00
update-context.md Initial shared homelab agent workspace 2026-05-03 19:37:40 +02:00

Homelab Codex

GitOps-lite orchestration for a distributed homelab environment.

Architecture

The homelab consists of several nodes connected via a Tailscale internal mesh.

Host Role Description
SATURN Primary Node Development, orchestration, and git source of truth (commit node).
SOLARIA Compute Node GPU, inference, and heavy compute workloads.
PIHA Infra Node Core infrastructure services, automation, and monitoring.
VPS Edge Node Public ingress, reverse proxy, and edge services.

Agent System

The homelab uses a multi-agent orchestration model with human-in-the-loop for destructive actions:

Agent Node Role
stability-agent all nodes Per-node watchdog — monitors Docker, disk, Tailscale, MQTT; emits events
node-agent all nodes Publishes container health events to Redis pub/sub
observer VPS Synthesizes world state from events into /opt/homelab/world/*.json
supervisor VPS Detects drift between desired and actual state; writes pending actions
planner-agent SOLARIA LLM-powered diagnosis — listens to Redis, proposes remediation actions
executor VPS Executes actions only after operator approval
operator-ui + telegram-bot VPS / PIHA Operator reviews and approves/rejects pending actions

Action approval flow: pending/ → operator approves → approved/ → executor runs.

Repository Structure

Getting Started

  1. Standardization: Follow the Infrastructure Standards.
  2. Deployment: See Deployment Conventions for how to roll out changes.
  3. SATURN: Remember that SATURN is the only node where commits should be made.

Documentation Index


Note: This repository documents the state of the homelab. Runtime state lives outside the repository in /opt/homelab.