DevOps And Microservices : Creating Change Together

This blog post is going to cover the correlation between DevOps and Microservices, currently the two hottest topics in the IT industry. Although they have been around for some time, their importance has increased thanks to the container orchestration technologies such as Kubernetes and Openshift.

The technologies we talk about in this blog are part of DevOps. If it’s something in which you have an interest or you want to learn it then you can visit our previous blog to know more about the [DOFD] DevOps Foundation Certification.

We will cover the following topics in this blog:

Microservices Overview

Microservices is an architectural style that structures an application as a collection of services that are:-

Highly maintainable and testable
Loosely coupled
Independently deployable
Organized around business capabilities
Owned by a small team

The microservice architecture provides rapid, frequent, and reliable delivery of large, complex applications. It also helps an organization to evolve its technology stack.

Benefits Of Microservices

The top 10 benefits that organizations realize from deploying microservices include:

Localized complexity: Owners of the microservices only need to understand the complexity of their service. Other service owners only need to be aware of the capabilities a service provides, without having to worry about how it works internally. This knowledge compartmentalization and reduced complexity make it easier to create and manage large applications.
Increased business agility: Microservices are relatively small and simple, and the failure of a microservice is isolated —not the whole application— enabling developers to experiment with new processes, algorithms, and business logic. Microservices allow you to experiment and “fail fast.”
Increased developer productivity: New developers can be incorporated into projects faster as it’s easier to understand a small, isolated piece of functionality than an entire monolithic application.
Simplified debugging and maintenance: Developers can be much more productive when debugging code and performing maintenance.
Better alignment of developers with business users: Since microservice architectures revolve around business capabilities, it is easier for developers to understand the user perspective and create microservices that are better aligned with the business.
Future-proofed applications: When new innovations are incorporated and new or updated technology disrupts your software development process, microservice architectures make it easier to adapt by replacing or upgrading the services that are affected without impacting the entire application.

DevOps Overview

DevOps is a set of cultural philosophies, practices, and tools that improve an organization’s ability to deliver applications and services at high velocity: evolving and improving products at a faster rate than traditional software development and infrastructure management processes. This speed allows organizations to better serve their customers and compete in the market.

What is DevOps?

Development and operations teams are no longer “silos” in a DevOps model. These two teams are sometimes combined into a single team in which the engineers work across the entire application lifecycle, from development and testing to deployment and operations, and develop a diverse set of skills that are not limited to a single function.

Benefits of DevOps

Speed: Move quickly so you can innovate for customers faster, better adapt to changing markets, and become more efficient at driving business results.
Rapid Delivery: Increase the frequency and pace of releases to allow you to innovate and improve your product more quickly. The faster you can release new features and fix bugs, the more quickly you can respond to your customers’ needs and gain a competitive advantage.
Reliability: Ensure the quality of application updates and infrastructure changes so that you can deliver at a faster rate while maintaining a positive user experience.
Scale: Scale up the operation and management of your infrastructure and development processes. Automation and consistency allow you to manage complex or changing systems more efficiently and safely.
Improved Collaboration: Create more effective teams by following a DevOps cultural model that emphasizes values like ownership and accountability.
Security: Move quickly while maintaining control and compliance. You can use automated compliance policies, fine-grained controls, and configuration management techniques to implement a DevOps model without sacrificing security.

How Microservices Fit Into DevOps

DevOps Practices push the idealogy of dividing large problems into smaller pieces and tackling them in order as a team. Microservices have similar ideals of utilizing small teams for the creation of functional changes one step at a time. Furthermore, they can easily scale up or down without having any impact on the resource allocations for the rest of the system.

The individual pieces created through the microservices architecture provide a plug-and-play functionality, hence creating an environment where continuous delivery pipelines can sustain a steady flow of deployments due to the reduced complexity of each deployment and lack of dependencies.

The combination of DevOps and microservices in the development, testing, and deployment of updates is the fastest method to increase the throughput of your teams and the overall quality of your services.

Microservices And DevOps: Creating Change Together

A microservices-based architecture introduces change, a change that is often well-received by those creating modern applications. Those embracing that change are finding that productivity is increasing at an astonishing rate and solutions can be delivered much more quickly to those requesting flexible, scalable applications. For those in the field of DevOps fields, microservices bring some significant benefits, including:

Deployability: They provide increased agility, which enables the roll-out of new versions of a service. That agility is due to shorter build, test, and deploy cycles.
Reliability: A fault with a microservice is isolated to that microservice and its consumers.
Availability: Releasing an update needs minimal downtime, whereas rolling out updates in the monolithic application normally needs a restart of the entire monolith.
Scalability: Microservices can be independently scaled using pools, clusters, and grids. This characteristic makes them perfect for the elasticity of the cloud.
Modifiability: Microservices are flexible in terms of new frameworks, libraries, data sources, and other resources. As loosely coupled, modular components, microservices are easier to work with and provide support for dynamic discovery and binding via a registry.
Management: Microservices leverage the agile methodology, where the development of the application is divided across teams that are smaller and independent.

Frequently Asked Questions

Q1. Why DevOps is important for microservices?
Ans. DevOps is essential to the microservices architecture because it allows developers and IT operations to collaborate closely to deliver higher-quality software much more quickly. DevOps benefits developers by providing them with visibility into the production environment in which their software will be deployed, thereby improving software quality.

Q2. Do microservices support DevOps?
Ans. Microservices increase DevOps productivity by embracing a common toolset that can be used for both development and operations. This common toolkit defines common terminology as well as processes for requirements, dependencies, and problems.

Q3. What are the advantages of combining microservices and DevOps?
Ans. End-to-end automation of the testing and delivery processes is possible with the combination of DevOps and microservices. As a result, issues in a specific service can be quickly identified and resolved while the rest of the application remains operational.

Related/References

[DOFD] DevOps Foundation Certification Exam: Everything You Need To Know
Top DevOps Interview Questions and Answers for 2023
Check out the official DevOps Institute page for [DOFD] DevOps Foundation here.
DevOps Foundation Sample Exam Questions
What Is DevOps | DevOps Principles | Advantages Of DevOps | Why DevOps?
DevOps Engineer | DevOps Roles and Responsibilities
DevOps For Beginners: Step-by-Step Activity Guide (Hands-on Lab)

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