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Migrating Applications from Monolith to Microservices

Why should you migrate monolith applications to microservices? Well, the answer is simple. Monolith applications are harder to scale and present a barrier to adopting new technologies. In a 2018 study conducted by technology learning company O’Reilly Media, it was found that 86% percent of companies saw that the use of microservices was “at least partially” successful, while the rest saw “massive success” with microservices.

Letting Go of the Past

Monolithic architectures are now considered a legacy way of organizing your services. As companies need to maintain a competitive advantage over their competitors, businesses continue to adapt to the idea of microservices architecture in software development.   Through microservices, developers are have more flexibility while building software, thus allowing them to build more robust applications faster than ever. The International Data Corporation predicts that 90% of applications will utilize microservices architecture by 2020.   

What are Microservices?

Microservice architecture is a method of developing software systems that consist of single-function components that allow for fast and efficient delivery of large and complex applications. There are several characteristics that make up a microservice.  

1. Multiple Components

Microservices are broken down into various components. Instead of having to deploy an entire application, microservices allow you to deploy individual components while maintain the integrity of the application as a whole.

2. Resistant to Failure

There are multiple services communicating with one another. In the case that there is an error with a service, it can be resolved on its own without affecting other components. Monitoring of the service components is still important can help mitigate risks.

3. Specialized

Each component of a microservice is designed to focus on solving a specific problem. If you find yourself adding extra code to a single service to serve more than one purpose that should be your cue that a new microservice should be built. The goal is to have simple, targeted services instead of large and complex ones.

What are Some of the Most Common Platforms and Tools Used to Implement Microservices on AWS?

AWS has integrated building blocks that support any application architecture, regardless of scale, load, or complexity. Some of the most common platforms and tools our team uses include:

Containers consist of a highly scalable container management service that allows you to run applications more efficiently. This service supports Docker containers on a cluster of Amazon EC2 instances.

Containers consist of a highly scalable container management service that allows you to run applications more efficiently. This service supports Docker containers on a cluster of Amazon EC2 instances.

A fully managed, fast, and flexible NoSQL database storage service for applications that need consistent latency.

Amazon RDS enables teams to easily setup, operate, and scale relational databases in the cloud. Learn more about how 5×5 leveraged Amazon RDS to scale their databases in the cloud here.

Why should your business consider switching to Microservices?

There are several reasons why microservices should be something to consider for your company:

1. Agility

Containers consist of a highly scalable container management service that allows you to run applications more efficiently. This service supports Docker containers on a cluster of Amazon EC2 instances.

2. Scalability

Applications can be scaled automatically or adjusted by managing how much throughput/memory that can be consumed.

3. Easy Deployment

Microservices enable continuous integration and continuous delivery, making it easy to try out new ideas and to roll back if something doesn’t work. The low cost of failure enables experimentation, makes it easier to update code, and accelerates time-to-market for new features.

What is the Future of Microservices?

Because operating under serverless is handled differently than it would be with a traditional server, serverless technology is not one-size-fits-all. There are a few things to consider before changing your infrastructure:

Currently, 2020 finds that microservices are increasing in trend. This includes cloud adoption and the need for observability. In terms of the future, we can expect frameworks to evolve for microservices—making them faster and easier to develop. Companies will slowly move away from locally hosted applications and will be migrating to the cloud.

Interested in learning more about how you can migrate your infrastructure from monolith to microservices? Contact us to speak with a cloud architect or software engineer. We would be happy to provide an assessment of one of your workloads.

AUTHOR

Hector Hernandez

Engineering Team Lead

With over 20 years of Software Engineer experience, Hector has been immersed in a wide array of different technologies throughout his career, from client server to cloud. Currently he is involved with serverless architectural design and implementation in the AWS cloud environment. He enjoys collaborating among his team and customers as he believes that synergy is contusive to better solutions. Learn more about EagleDream’s Software and Application Development practice here.

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