fix: add agent key auth for ingest endpoints

examples/docker/nodejs-instrumented/server.js

@@ -0,0 +1,67 @@
+/**
+ * ═══════════════════════════════════════════════════════════
+ * 🐍 OPHION - Example Node.js Application
+ * This app is automatically instrumented by OpenTelemetry
+ * No code changes needed - just env vars!
+ * ═══════════════════════════════════════════════════════════
+ */
+
+const http = require('http');
+
+const PORT = process.env.PORT || 3000;
+
+// Simple HTTP server
+const server = http.createServer((req, res) => {
+  const { url, method } = req;
+  
+  console.log(`[${new Date().toISOString()}] ${method} ${url}`);
+  
+  // Route handling
+  if (url === '/health') {
+    res.writeHead(200, { 'Content-Type': 'application/json' });
+    res.end(JSON.stringify({ status: 'healthy', service: 'nodejs-example' }));
+    return;
+  }
+  
+  if (url === '/') {
+    res.writeHead(200, { 'Content-Type': 'application/json' });
+    res.end(JSON.stringify({ 
+      message: 'Hello from Node.js!',
+      instrumented: true,
+      otelEndpoint: process.env.OTEL_EXPORTER_OTLP_ENDPOINT || 'not set'
+    }));
+    return;
+  }
+  
+  if (url === '/api/users') {
+    // Simulate some work
+    setTimeout(() => {
+      res.writeHead(200, { 'Content-Type': 'application/json' });
+      res.end(JSON.stringify([
+        { id: 1, name: 'Alice' },
+        { id: 2, name: 'Bob' },
+        { id: 3, name: 'Charlie' }
+      ]));
+    }, Math.random() * 100);
+    return;
+  }
+  
+  if (url === '/api/slow') {
+    // Simulate slow operation (good for testing traces)
+    setTimeout(() => {
+      res.writeHead(200, { 'Content-Type': 'application/json' });
+      res.end(JSON.stringify({ message: 'Slow response', delay: '500ms' }));
+    }, 500);
+    return;
+  }
+  
+  // 404
+  res.writeHead(404, { 'Content-Type': 'application/json' });
+  res.end(JSON.stringify({ error: 'Not Found' }));
+});
+
+server.listen(PORT, () => {
+  console.log(`🚀 Node.js server running on port ${PORT}`);
+  console.log(`📊 OTEL Endpoint: ${process.env.OTEL_EXPORTER_OTLP_ENDPOINT || 'not configured'}`);
+  console.log(`🏷️  Service Name: ${process.env.OTEL_SERVICE_NAME || 'unknown'}`);
+});