As you have noticed this quarter we are talking about trends and buzzwords so that you know what to focus on this year. Today we will discuss microservices architecture; it’s essence, benefits and successful case studies.
What is so good about microservices architecture?
We mean an architectural style, an approach to software development in which a large application is built as a suite of modular services, when we talk about microservices architecture; small, independently versioned, and scalable customer-focused services with specific business goals, which communicate with each other over standard protocols with well-defined interfaces. Because these are scalable and independently deployable, each service also provides a firm module boundary, even allowing for different services to be written in different programming languages and can also be managed by different teams.
Microservices architecture is a way of breaking large software projects into smaller, independent, and loosely coupled modules. Individual modules are responsible for highly defined and discrete tasks and communicate with other modules through simple, universally accessible APIs. It is a distinctive method of developing software systems that has grown in popularity in recent years. All this is possible with its scalability, this architectural method is considered particularly ideal when you have to enable support for a range of platforms and devices, for example web, mobile, Internet of Things, wearables, etc. or simply when you’re not sure what kind of devices you’ll need to support in a cloudy future.
What the only aim behind microservices architecture is that some types of applications become easier to build and maintain when they are broken down into smaller, composable pieces which work together. In other words, each component is developed separately, and the application is then simply the sum of its constituent components. In this type of architecture, each service runs a unique process and usually manages its own database. This not only provides development teams with a more decentralized approach to building software, it also allows each service to be deployed, rebuilt, redeployed and managed independently.
“Do one thing and do it well” This is the philosophy of the microservices architecture. Services might run within the same process, but they should be independently deployable and easy to replace. They can be implemented using different programming languages, databases, and software environment. All the services are small and fine grained to execute a single function. They embrace automation of testing and deployment, continuous delivery software development process, failure and faults, similar to anti-fragile systems. Each service is elastic, resilient, composable, minimal, and complete.
Also, probably you have heard about Docker if you are interested in microservices architecture. And you have heard that Docker or other container technologies are kind of an enabler of a microservice architecture. Containers are designed to be pared down to the minimal viable pieces needed to run whatever the one thing the container is designed to do, rather than packing multiple functions into the same machine. Easily development feature of Docker help make possible rapid development and testing.
Using containers and microservices together enhances cloud capabilities. Microservices is scalable and reusable, while containers supply efficient resources. Both microservices and containers can work independently, but it has become clear that merging them has improved runtime frequency, cloud-hosting policies and cloud tools.
Microservices architecture benefits
Any Software that is built as microservices can now be broken down into multiple component services. So that each of these services can be deployed and then redeployed independently without compromising the integrity of an application. Implies that microservice architecture gives developers the freedom to independently develop and deploy services.
• Better fault isolation. If one microservice fails, the other will continue to work
• Code for different services can be written in different languages
• Easy integration and automatic deployment; using open-source continuous integration tools such as Jenkins, etc.
• The microservice architecture enables continuous delivery
• Easy to understand since they represent the small piece of functionality and easy to modify for developers, thus can help a new team member become productive quickly
• The code is organized around business capabilities
• Scalability and reusability, as well as efficiency. Easy to scale and integrate with third-party services
• Components can be spread around multiple servers or even multiple data centers
• Work very well with containers, such as Docker
• Complement cloud activities
• Microservices simplifies security monitoring because the various parts of an app are isolated. A security problem could happen in one section without affecting other areas of the project