Advantage Of Microservices

Microservices fits most solutions and the advantage is that it is scalable so it is possible to start small so if you are thinking of building something new, upgrading with new functions or migrating to a new solution, Microservices is a good alternative.

Features of Microservices Solution:

1.      Highly Scalable

2.      Sustainable

3.      Flexible

4.      Highly Secured

5.      Extendable

1.      Highly Scalable:

By using Microservice Architecture for an application which allows you to pin point or micro manage resources at granular level. For Example, in an E Commerce Use Case, there will be 1000 of Users visiting the Product Catalog Page and out of that only 100 Users may reach the Order Page. In this case, Microservices Architecture provides more server resources to Product Catalog Page compared to the Order Page real time dynamically.

2.      Sustainable:

Another advantage of Microservices is that you can develop a sustainable application. If the application is developed using a specific programming language today and after a few years if there is some better programming language in the market, we can develop new modules using the new programming language which can seamlessly work along with the existing code which is developed using a different older programming language. You do not need to rewrite the application from scratch again.

3.      Flexible:

Microservices architecture gives you the liberty to develop the application collaborating multiple technologies simultaneously. For example, in ECommerce Application, we can use .Net Core to develop the main eCommerce Back End and we can leverage Python’s machine learning capabilities to analyze historic data and provide insights about the future trends.

4.      Highly Secured:

With the help of advanced token-based authorization technologies like OAUTH2 and JWT, access and authorization control at individual components like each Back APIs and Microservice provides high level security. As each microservice will be running inside an isolated operating system container it adds to the security level compared to the entire application running on a single OS instance.

5.      Extendable:

 For example, by using React Native Web (Expo) as the Front End with which minimal changes can be converted into a Mobile App. So, it won’t be required to build an entire new app in Java, Kotlin for Android and Objective C or Swift for iOS, the Front-End code will support the Mobile App.

Microservices - Kubernetes Architecture

As depicted in the picture above,

By decoupling application into micro-services. Services shown in above

Each service will run under a container. Container’s replicas will be added and removed based on load on the application.

Kubernetes will monitor and orchestrate this auto creation or deletion of containers.

Replicas of containers will also increase and decrease by Kubernetes based on requirements.

Master will contain Kubernetes API, Controller, Scheduler and other parts. Other nodes will join as minions or workers.

Change in independent service or failure of individual service won't will not result in the instance of the application crash or downtime.

All the service images can be pushed to Docker Hub and pulled from there for further deployments.

Application Flow Diagram