examples(dagger): add readme

examples/quick-start-dagger-nodejs/readme.md

@@ -16,51 +16,12 @@ This is a simple quick start on how to configure a Node.js app to use OpenTeleme
 dagger install github.com/kubeshop/tracetest@8c44d01e33e677518a555d1b958cf7be0d70f940
 ```
 
-### 1. Start the Tracetest Agent locally
+### Run Dagger
 
 ```bash
-tracetest start
-```
-
-Once started, Tracetest Agent will:
-
-- Expose OTLP ports 4317 (gRPC) and 4318 (HTTP) for trace ingestion.
-- Be able to trigger test runs in the environment where it is running.
-- Be able to connect to a trace data store that is not accessible outside of your environment. Eg. a Jaeger instance running in the cluster without an ingress controller.
-
-### 2. Start Node.js App
-
-You can run the example with Docker or locally.
-
-#### Docker Compose
-
-```bash
-docker compose up --build
-```
-
-#### Locally
-
-```bash
-npm i 
-OTEL_EXPORTER_OTLP_TRACES_ENDPOINT=http://localhost:4317 npm run with-grpc-tracer
-```
-
-### 3. Run tests
-
-Create and run a test against `http://localhost:8080` on [`https://app.tracetest.io/`](https://app.tracetest.io/). View the `./test-api.yaml` for reference.
-
-## Steps to run Tracetest Core
-
-### 1. Start Node.js App and Tracetest Core with Docker Compose
+export TRACETEST_API_KEY=<your-api-key>
+export TRACETEST_ENVIRONMENT_ID=<your-env-id>
+export TRACETEST_ORGANIZATION_ID=<your-org-id>
 
-```bash
-docker compose -f ./docker-compose.yaml -f ./tracetest/docker-compose.yaml up --build
+dagger call --api-key=$TRACETEST_API_KEY --environment=$TRACETEST_ENVIRONMENT_ID --organization=$TRACETEST_ORGANIZATION_ID tracetest --source=.
 ```
-
-### 2. Run tests
-
-Once started, you will need to make sure to trigger tests with correct service names since both the Node.js app and Tracetest Core are running in the same Docker Network. In this example the Node.js app would be at `http://app:8080`. View the `./test-api.yaml` for reference.
-
----
-
-Feel free to check out the [docs](https://docs.tracetest.io/), and join our [Slack Community](https://dub.sh/tracetest-community) for more info!