feat(observability): export Trigger.dev telemetry to Grafana Cloud OTLP

Wire OTLP HTTP exporters for traces, logs, and metrics from the
Trigger.dev runtime to Grafana Cloud. Auth uses Basic with instance ID
and API token. Gated behind GRAFANA_OTLP_ENDPOINT, GRAFANA_INSTANCE_ID,
and GRAFANA_API_TOKEN — all three must be set together or all unset;
partial config throws at startup.

Author: TheodoreSpeaks

apps/sim/lib/core/config/env.ts

@@ -157,6 +157,9 @@ export const env = createEnv({
     LOG_LEVEL:                             z.enum(['DEBUG', 'INFO', 'WARN', 'ERROR']).optional(), // Minimum log level to display (defaults to ERROR in production, DEBUG in development)
     PROFOUND_API_KEY:                      z.string().min(1).optional(),           // Profound analytics API key
     PROFOUND_ENDPOINT:                     z.string().url().optional(),            // Profound analytics endpoint
+    GRAFANA_OTLP_ENDPOINT:                 z.string().url().optional(),            // Grafana Cloud OTLP HTTP gateway base URL (e.g., https://otlp-gateway-prod-us-east-0.grafana.net/otlp). Trigger.dev exporters append /v1/traces, /v1/logs, /v1/metrics.
+    GRAFANA_INSTANCE_ID:                   z.string().min(1).optional(),           // Grafana Cloud instance ID (Basic auth username for OTLP)
+    GRAFANA_API_TOKEN:                     z.string().min(1).optional(),           // Grafana Cloud API token (Basic auth password for OTLP)
 
     // External Services
     BROWSERBASE_API_KEY:                   z.string().min(1).optional(),           // Browserbase API key for browser automation

apps/sim/package.json

@@ -65,6 +65,8 @@
     "@modelcontextprotocol/sdk": "1.29.0",
     "@monaco-editor/react": "4.7.0",
     "@opentelemetry/api": "^1.9.0",
+    "@opentelemetry/exporter-logs-otlp-http": "^0.217.0",
+    "@opentelemetry/exporter-metrics-otlp-proto": "^0.217.0",
     "@opentelemetry/exporter-trace-otlp-http": "^0.217.0",
     "@opentelemetry/resources": "^2.7.0",
     "@opentelemetry/sdk-node": "^0.217.0",

apps/sim/trigger.config.ts

@@ -1,7 +1,36 @@
+import { OTLPLogExporter } from '@opentelemetry/exporter-logs-otlp-http'
+import { OTLPMetricExporter } from '@opentelemetry/exporter-metrics-otlp-proto'
+import { OTLPTraceExporter } from '@opentelemetry/exporter-trace-otlp-http'
 import { additionalFiles, additionalPackages } from '@trigger.dev/build/extensions/core'
 import { defineConfig } from '@trigger.dev/sdk'
 import { env } from './lib/core/config/env'
 
+const grafanaEndpoint = env.GRAFANA_OTLP_ENDPOINT
+const grafanaInstanceId = env.GRAFANA_INSTANCE_ID
+const grafanaToken = env.GRAFANA_API_TOKEN
+const grafanaConfigured = Boolean(grafanaEndpoint || grafanaInstanceId || grafanaToken)
+const grafanaFullyConfigured = Boolean(grafanaEndpoint && grafanaInstanceId && grafanaToken)
+
+if (grafanaConfigured && !grafanaFullyConfigured) {
+  throw new Error(
+    'Grafana OTLP telemetry is partially configured. Set GRAFANA_OTLP_ENDPOINT, GRAFANA_INSTANCE_ID, and GRAFANA_API_TOKEN together, or leave all three unset.'
+  )
+}
+
+const grafanaTelemetry = grafanaFullyConfigured
+  ? (() => {
+      const baseUrl = grafanaEndpoint!.replace(/\/+$/, '')
+      const headers = {
+        Authorization: `Basic ${Buffer.from(`${grafanaInstanceId}:${grafanaToken}`).toString('base64')}`,
+      }
+      return {
+        exporters: [new OTLPTraceExporter({ url: `${baseUrl}/v1/traces`, headers })],
+        logExporters: [new OTLPLogExporter({ url: `${baseUrl}/v1/logs`, headers })],
+        metricExporters: [new OTLPMetricExporter({ url: `${baseUrl}/v1/metrics`, headers })],
+      }
+    })()
+  : undefined
+
 export default defineConfig({
   project: env.TRIGGER_PROJECT_ID!,
   runtime: 'node-22',
@@ -14,6 +43,7 @@ export default defineConfig({
     },
   },
   dirs: ['./background'],
+  ...(grafanaTelemetry ? { telemetry: grafanaTelemetry } : {}),
   build: {
     external: ['isolated-vm'],
     extensions: [