Aither shows an approach how to bootstrap a microservice system in Node.js with Hemera 5 and docker. You can scale your worker in seconds and because we use NATS as “nervous system" for our distributed system we do not have to worry about service-discovery or load-balancing of hemera-services. We use traefik to load-balancing the api-gateway.

This configuration will setup:

• Hapi http server which act as api-gateway to the Hemera services.
• Microservice which is responsible to add two numbers.
• NATS server the underlying messaging system for Hemera.
• Jaeger CNCF Jaeger, a Distributed Tracing System.
• Natsboard dashboard to monitoring your NATS system in realtime.
• Traefik modern HTTP reverse proxy and load balancer made to deploy microservices with ease.
• Redis in memory cache for Hemera.

• Hapi 17
• Hemera 5

• Running the system docker-compose up
• Start a request against load balancer OPEN
• Scale the system docker-compose scale math-service=5 api=2

• Traefik http://localhost:8181/
• NATS Dashboard http://localhost:3000/
• NATS Endpoint http://localhost:8222/
• Jaeger http://localhost:16686/

npm install -g artillery
artillery run loadtest.yml

Print the html artillery report with artillery report <report.json>

thanks most of all to the community who create these awesome opensource software and thereby making it possible.