PT Site Monitor

Uptime monitoring for PT sites, driven by GitHub Actions and Astro.

How It Works

Workflow	Schedule	Action
monitor.yml	Every 15 min	HTTP probes all sites, writes results to data/uptime/
build.yml	Every 2 hours	Builds Astro static site, deploys to GitHub Pages
update-source.yml	Every day	Fetches site definitions from PT-depiler, runs data cleanup

Data Source

Site definitions are pulled from pt-plugins/PT-depiler (src/packages/site/definitions/**/*.ts). The siteMetadata variable in each file provides:

• id — unique site identifier
• name — display name
• urls — array of URLs to probe (ROT13-encoded URLs with uggcf:// / uggc:// prefix are auto-decoded)
• type — site category
• descriptions — optional description
• isDead — optional flag to skip monitoring (default: false)

Monitoring Logic

1. Skip sites with isDead: true
2. For each site, test each URL with a 15s timeout; stop early if any URL succeeds
3. If a URL fails, retry up to 3 times (2s delay between attempts)
4. Site is UP if any URL responds; DOWN only if all URLs fail
5. Concurrency limited to 5 sites at a time via p-queue
6. Results saved to data/uptime/YYYY/MM/DD/HH_MM.json

Data Cleanup

• Daily: merges all per-run files in data/uptime/YYYY/MM/DD/ into data/uptime/YYYY/MM/DD.json (JSONLines), removes raw files
• Monthly: merges daily files into data/uptime/YYYY/MM.json
• Skips today's data and current month's data (monitoring in progress)
• Generates data/uptime.json index of all merged files

Local Development

Prerequisites

• Node.js 20+
• pnpm 10+
• Git

Setup

pnpm install
# Fetch site definitions
pnpm update-source
# Run a monitoring check
pnpm monitor
# Start Astro dev server
pnpm dev

Scripts

Command	Description
pnpm dev	Start Astro dev server
pnpm build	Build static site to dist/
pnpm monitor	Run uptime checks
pnpm update-source	Fetch site definitions from PT-depiler
pnpm cleanup	Merge data files + regenerate index

Project Structure

/
├── .github/workflows/
│ ├── monitor.yml
│ ├── build.yml
│ └── update-source.yml
├── scripts/
│ ├── update-source.mjs
│ ├── monitor.mjs
│ └── cleanup.mjs
├── src/ # Astro pages & components
│ ├── pages/
│ │ ├── index.astro
│ │ └── site/[id].astro
│ ├── components/
│ │ ├── Layout.astro
│ │ ├── SiteCard.astro
│ │ ├── StatusBadge.astro
│ │ └── LatencyChart.astro
│ └── lib/
│ ├── data-loader.ts
│ └── types.ts
├── public/ # Static assets (favicon)
├── data/
│ ├── site.json # Site definitions
│ ├── uptime.json # Monitoring data index
│ └── uptime/ # Monitoring results
├── astro.config.mjs
├── package.json
└── tsconfig.json

GitHub Pages Deployment

1. Enable GitHub Pages in repo settings → Source: GitHub Actions
2. The build.yml workflow handles build + deploy automatically
3. Set site and base in astro.config.mjs to match your domain / repo name

License

MIT