mitya-borodin / moleculer-with-opentelemetry

The example of integration opentelemetry to moleculer.

moleculer-training-ground

Пример интеграции opentelemetry в moleculer по средством custom tracer.

Запуск

Выполнить npx parcel ./webapp/index.html --no-cache --no-hmr --dist-dir=./public. В соседнем терминале. Выполнить yarn dc:up. Запуск завершен, можно работать http://localhost:3000 и http://localhost:9411/zipkin

Чтобы обновления кода BE попали в контейнеры нужно выполнять  yarn dc:up.

После окончания работ выключить контейнеры docker compose yarn dc:down и остановить процесс parcel.

Roadmap

1. Setup webapp for emit spans to Zipkin backend and share context with moleculer backend.
2. Setup the api-gateway service that will broadcast requests to another services-(product, cart, order).
3. Setup the product service that will handle actions:
   1. by them self and return list of products.
4. Setup the cart service that will handle actions:
   1. them self by save cart to db.
   2. emit some message to RabbitMQ, for collect metrics.
   3. emit some message to RabbitMQ, for reservation products on the warehouse.
5. Setup the order service that will handle action:
   1. by them self by save order to db.
   2. by call cart service for getting cart data.
   3. emit some message to RabbitMQ, for collect metrics.
   4. emit some message to RabbitMQ, for activate delivery.
6. Setup the partner service that will handle action:
   1. by them self, save data to db.
   2. emit events for metrics consumer.
7. Configure metrics consumer, which itself will handle events that were triggered by "product", "cart" and "order".
8. Configure delivery consumer, which itself will process events that were launched by the service order through calling actions in the service product, and will also generate events that will be processed by the consumer metrics
9. Configure warehouse consumer, which itself will handle events that were triggered by cart service through calling actions in the service product, and also make http request to partner service.

What will check ?

1. Emit trace form webapp.
2. Spreading the trace context between the web application and the api gateway, as well as services and consumers.
3. Emit trace from moleculer services, consumers, any http service.
4. The continuity of the trace in all the involved areas.

Goal

In the result I'm want to see all traces in Zipkin GUI.