docs(getstarted): add Beyla for Docker

docs/docs/getting-started/configure-trace-ingestion.mdx

@@ -388,6 +388,54 @@ rails server -p 8080
 [Visit the example in GitHub, here.](https://github.com/kubeshop/tracetest/tree/main/examples/getting-started/ruby)
 :::
 
+</TabItem>
+<TabItem value="docker" label="Docker">
+
+You can configure [Grafana Beyla](https://grafana.com/oss/beyla-ebpf/) to auto-instrument Docker services and export traces to Tracetest.
+
+1. Add Beyla to your `docker-compose.yaml`
+
+```yaml title="docker-compose.yaml"
+services:
+  autoinstrument:
+    image: grafana/beyla:latest
+    privileged: true
+    environment:
+      OTEL_EXPORTER_OTLP_ENDPOINT: "http://<tracetest-agent>:4317"
+      # OTEL_EXPORTER_OTLP_HEADERS: "x-tracetest-token:<token>"
+      BEYLA_OPEN_PORT: "3000,8080" # Beyla will autoinstrument services on these ports
+      BEYLA_TRACE_PRINTER: "text"
+
+# ...
+```
+
+2. Add `pid: service:autoinstrument` to services in `docker-compose.yaml`
+
+```yaml title="docker-compose.yaml"
+services:
+  # ...
+
+  service1:
+    pid: service:autoinstrument # Add this line for Beyla to know what to instrument
+    build: ./service1
+    ports:
+      - "3000:3000"
+
+  service2:
+    pid: service:autoinstrument # Add this line for Beyla to know what to instrument
+    build: ./service2
+    ports:
+      - "8080:8080"
+```
+
+3. Run Docker Compose
+
+```bash title="Terminal"
+docker compose up
+```
+
+This will automatically instrument your Docker Compose services with Beyla using eBPF and send the traces to Tracetest.
+
 </TabItem>
 <TabItem value="opentelemetry-operator" label="Kubernetes" default>
 

examples/getting-started/docker/docker-compose.yaml

@@ -0,0 +1,18 @@
+services:
+  autoinstrument:
+    image: grafana/beyla:latest
+    privileged: true
+    environment:
+      OTEL_EXPORTER_OTLP_ENDPOINT: "http://host.docker.internal:4317"
+      # OTEL_EXPORTER_OTLP_HEADERS: "x-tracetest-token:<token>"
+      BEYLA_OPEN_PORT: "8080" # Beyla will autoinstrument services on these ports
+      BEYLA_TRACE_PRINTER: "text"
+      BEYLA_BPF_TRACK_REQUEST_HEADERS: "true"
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+
+  app:
+    pid: service:autoinstrument # Add this line for Beyla to know what to instrument
+    image: adnanrahic/hello-world-nodejs
+    ports:
+      - 8080:8080

examples/quick-start-nodejs/Dockerfile

@@ -4,4 +4,4 @@ COPY package*.json ./
 RUN npm install
 COPY . .
 EXPOSE 8080
-CMD [ "npm", "run", "with-grpc-tracer" ]
+CMD [ "npm", "start" ]

examples/quick-start-nodejs/docker-compose.yaml

@@ -1,7 +1,7 @@
-version: '3'
+version: "3"
 services:
   app:
-    image: quick-start-nodejs
+    image: adnanrahic/hello-world-nodejs
     extra_hosts:
       - "host.docker.internal:host-gateway"
     build: .
@@ -28,7 +28,7 @@ services:
       # Get the required information here: https://app.tracetest.io/retrieve-token
       - TRACETEST_API_KEY=${TRACETEST_TOKEN}
       - TRACETEST_ENVIRONMENT_ID=${TRACETEST_ENVIRONMENT_ID}
-  
+
   tracetest-apply:
     build:
       dockerfile: Dockerfile.tracetest
@@ -64,4 +64,3 @@ services:
     depends_on:
       tracetest-apply:
         condition: service_completed_successfully
-

examples/quick-start-nodejs/package.json

@@ -6,7 +6,8 @@
   "scripts": {
     "with-grpc-tracer-and-env": "OTEL_EXPORTER_OTLP_TRACES_ENDPOINT=http://localhost:4317 node -r ./tracing.otel.grpc.js app.js",
     "with-grpc-tracer": "node -r ./tracing.otel.grpc.js app.js",
-    "with-http-tracer": "node -r ./tracing.otel.http.js app.js"
+    "with-http-tracer": "node -r ./tracing.otel.http.js app.js",
+    "start": "node app.js"
   },
   "keywords": [],
   "author": "",