container-service-discovery

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:toc:

= Service Discovery in Containers on AWS

This repo has a simple example that shows service discovery for different container orchestration frameworks.

The sample application uses three services:

image::images/services.png[]

. webapp: Web application microservice uses greeter and name microservice to generate a greeting for a person. . greeter: A microservice returns a greeting based upon greet name/value keypair in the URL. . name: A microservice that returns person's name based upon id name/value keypair in the URL.

These services are built as Docker image and deployed in Docker, Amazon ECS, Kubernetes and DC/OS.

All services are built as Node.js application. webapp service need to be configured using the following parameters:

. NAME_SERVICE_HOST . NAME_SERVICE_PORT . NAME_SERVICE_PATH . GREETER_SERVICE_HOST . GREETER_SERVICE_PORT . GREETER_SERVICE_PATH

== Build services

Build Docker images for different services:

docker-compose build

== Setup cluster and deploy application

. link:docker.adoc[Docker] . link:ecs.adoc[Amazon ECS] . link:k8s.adoc[Kubernetes] . link:dcos.adoc[DC/OS]

== Access application

Access the following URLs using curl or in browser:

http://<host>:<port>
http://<host>:<port>0?greet=ho
http://<host>:<port>?id=1
http://<host>:<port>?greet=ho&id=1

[options="header"] |======= |Framework | | | Docker | Master node public IP | 80 | ECS | External ALB Address | 80 | Kubernetes | Load Balancer Ingress | 80 | DC/OS | Public Slave Address | 80 |=======