Dockerfile

# Test 2: same as Test 1, but navigates to a Google domain instead of example.com
# Generic naming, no AI Studio API code - just isolating the target-domain variable.

FROM node:24-slim

WORKDIR /app

RUN apt-get update && apt-get install -y --no-install-recommends \
    ca-certificates \
    curl \
    unzip \
    libasound2 \
    libatk-bridge2.0-0 \
    libatk1.0-0 \
    libatspi2.0-0 \
    libcups2 \
    libdbus-1-3 \
    libdrm2 \
    libgbm1 \
    libgtk-3-0 \
    libnspr4 \
    libnss3 \
    libx11-6 \
    libx11-xcb1 \
    libxcb1 \
    libxcomposite1 \
    libxdamage1 \
    libxext6 \
    libxfixes3 \
    libxrandr2 \
    libxss1 \
    libxtst6 \
    && rm -rf /var/lib/apt/lists/* \
    && apt-get clean

RUN npm install playwright@^1.53.1 \
    && npx playwright install firefox

RUN cat > /app/server.js << 'EOF'
const http = require('http');
const { firefox } = require('playwright');

let lastTitle = null;
let lastCheck = null;
let errorCount = 0;

const server = http.createServer((req, res) => {
  res.writeHead(200, { 'Content-Type': 'application/json' });
  res.end(JSON.stringify({
    status: 'ok',
    lastTitle,
    lastCheck,
    errorCount,
    time: new Date().toISOString(),
  }));
});

const port = process.env.PORT || 7860;
server.listen(port, '0.0.0.0', () => {
  console.log(`HTTP server listening on port ${port}`);
});

async function loop() {
  let browser;
  try {
    browser = await firefox.launch({ headless: true, args: ['--no-sandbox'] });
    const page = await browser.newPage();
    // Target a Google domain - NOT logging in, just loading the page
    await page.goto('https://aistudio.google.com', { waitUntil: 'domcontentloaded', timeout: 30000 });
    lastTitle = await page.title();
    lastCheck = new Date().toISOString();
    console.log(`[${lastCheck}] OK - title: ${lastTitle}`);
  } catch (err) {
    errorCount++;
    console.error('Loop error:', err.message);
  } finally {
    if (browser) await browser.close();
  }
}

// Run immediately, then every 30 seconds
loop();
setInterval(loop, 30000);
EOF

EXPOSE 7860

CMD ["node", "server.js"]