Monthly Archives: January 2015

Microservices Development with Scala, Spray, MongoDB, Docker and Ansible

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This article tries to provide one possible approach to building microservices. We’ll use Scala as programming language. API will be RESTful JSON provided by Spray and Akka. MongoDB will be used as database. Once everything is done we’ll pack it all into a Docker container. Vagrant with Ansible will take care of our environment and configuration management needs.

We’ll do the books service. It should be able to do following:

  • List all books
  • Retrieve all the information related to a book
  • Update an existing book
  • Delete an existing book
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Monolithic Servers vs Microservices

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Introduction

At the beginning applications were simple and small due to simple requirements. With time requirements and needs grew and with them our applications became bigger and more complex. That resulted in monolithic servers developed and deployed as a single unit. Microservices are, in a way, return to basics with simple applications that are fulfilling today’s needs for complexity by working together through utilization of each others APIs.
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