bvandeusenandClaude Opus 5.5
4195b9171a
docs/plugins/prometheus-widgets.md covers: - where templates live and how to copy one in, duplicate, export and share; - a first template, walked through; - each block (states with its deadlines, values, times, table, info) with an example; - the format reference: keys, units, spans, limits, what the checker refuses; - the Fabled Archives template, block by block, with what it leaves out and why. Linked from the README, the plugin guide, the editor and template_format. tests/plugins/prometheus/test_widget_guide.py checks every YAML example in the guide against the checker, so the guide can't drift from the format. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
129 lines
5.0 KiB
Markdown
129 lines
5.0 KiB
Markdown
# Steward
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A self-hosted network monitoring and infrastructure management hub for home servers. Steward gives you a single pane of glass over your hosts, services, and automation — with live-updating dashboards, alerting, and Ansible integration.
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---
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## What It Does
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- **Ping monitoring** — TCP/ICMP probes with live latency history and configurable thresholds
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- **DNS monitoring** — resolution checks with optional expected-IP validation
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- **Ansible** — browse playbooks, trigger runs, stream output live
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- **Alerting** — threshold-based rules against any monitored metric, with email and webhook (Discord-compatible) notifications
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- **Plugins** — extend with additional data sources; Traefik metrics included out of the box
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- **Dashboard widgets** — all monitors and plugins contribute live-updating widgets
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No JavaScript framework. No build step. No external workers or message brokers.
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---
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## Quick Start — Docker
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```bash
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cp .env.example .env
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# Set STEWARD_DATABASE_URL in .env
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docker compose up -d
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```
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Open `http://localhost:5000`. On first run you'll be prompted to create the admin account.
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This compose file builds the image locally and bind-mounts the source for live editing. To run a persistent instance off the published CI image instead, see **Remote dev instance** below.
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---
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## Remote dev instance
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For a long-lived instance on a remote server that tracks the `dev` CI line, use `compose.deploy.yml`. It pulls the published image (`git.fabledsword.com/bvandeusen/steward:dev`) rather than building, runs no source bind-mounts, and persists data in named volumes.
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**One-time prerequisite — registry push token (on the Git host).** CI publishes the image, so the FabledSteward repo needs a push credential. The injected `GITHUB_TOKEN` lacks `write:package`, so create a Forgejo token scoped **`read:package` + `write:package`** and add it as the repo Actions secret **`REGISTRY_TOKEN`**. Until this exists, the `publish` CI job 401s and no `:dev` image is produced.
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**Standup (on the server):**
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```bash
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# 1. Authenticate to the registry (read:package token is enough to pull)
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docker login git.fabledsword.com -u <user>
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# 2. Configure secrets
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cp .env.example .env
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# Set POSTGRES_PASSWORD. Leave STEWARD_SECRET_KEY unset to let the app
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# generate + persist one on the /data volume.
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# 3. Pull + boot
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docker compose -f compose.deploy.yml up -d
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```
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Open `http://<server>:5000` and create the admin account on first run.
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**Update to the latest dev build:**
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```bash
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docker compose -f compose.deploy.yml pull
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docker compose -f compose.deploy.yml up -d
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```
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Every push to `dev` that goes CI-green publishes a fresh `:dev` (and an immutable `:<commit-sha>` for rollback). To pin a specific commit, change the `image:` tag in `compose.deploy.yml` to `:<sha>`.
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---
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## Quick Start — Bare Metal
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Requires Python 3.11+ and PostgreSQL.
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```bash
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python -m venv .venv && source .venv/bin/activate
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pip install -e .
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cp config.example.yaml config.yaml
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# Edit config.yaml — set database.url at minimum
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steward --host 0.0.0.0 --port 5000
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```
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ICMP ping requires `CAP_NET_RAW` or the `setuid` ping binary. TCP mode (the default) needs no elevated privileges.
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---
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## Configuration
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Only two things must be set to run the app:
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| What | How |
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| Database URL | `STEWARD_DATABASE_URL` env var or `database.url` in `config.yaml` |
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| Secret key | Auto-generated on first run and saved to `/data/secret.key` |
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Everything else — SMTP, webhooks, monitor intervals, Ansible sources, plugin settings — is configured through the web UI at `/settings/`.
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---
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## Plugins
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Drop a directory into `plugins/` and enable it via the Settings UI. The Traefik plugin is included:
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```
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plugins/
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└── traefik/ ← included; enable in Settings
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```
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See `docs/plugins/` for a full plugin development guide.
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---
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## Documentation
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| Document | Contents |
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| `docs/architecture.md` | How the app works: startup sequence, routing, scheduler, DB pattern |
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| `docs/core/configuration.md` | Bootstrap config, DB-backed settings, all setting keys and defaults |
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| `docs/core/monitors.md` | Ping and DNS monitors: probe logic, metrics emitted, data models |
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| `docs/core/alerting.md` | Alert rules, state machine, notification channels, template variables |
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| `docs/core/ansible.md` | Playbook sources, run lifecycle, SSE streaming |
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| `docs/core/backups.md` | Steward's daily backup to an S3 bucket (Fabled Archives), what it holds, and `steward restore` |
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| `docs/plugins/overview.md` | Plugin system: how loading works, plugin.yaml schema, required exports |
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| `docs/plugins/writing-a-plugin.md` | Step-by-step plugin development guide |
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| `docs/plugins/traefik.md` | Traefik plugin: config, metrics, alert rule examples |
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| `docs/plugins/prometheus.md` | Prometheus plugin: scraping any /metrics endpoint, how series are stored, the Fabled Archives recipe |
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| `docs/plugins/prometheus-widgets.md` | Prometheus widget templates: writing, sharing and copying one in, every block, the format reference |
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| `docs/reference/code-map.md` | Where every key function, model, and route lives in the codebase |
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