A Guide on What Are Microservices: Pros, Cons, Use Cases, and More
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The document is a comprehensive guide on microservices, detailing their definition, characteristics, benefits, challenges, and best practices for implementation. It compares microservices to monolithic and SOA architectures and discusses the enabling technologies, such as containerization and API management tools, that facilitate their deployment. Additionally, it provides real-world examples of organizations that successfully transitioned to microservices, along with scenarios where microservices are either suitable or not recommended.
A Guide on What Are Microservices: Pros, Cons, Use Cases, and More
- 1. A Guide on What Are Microservices: Pros, Cons, Use Cases, and More
- 2. Agenda What are microservices? Microservices vs Monolithic Microservices vs SOA The benefits of microservices? The challenges of microservices? Best practices for implementing a microservices architecture Key enabling technologies and tools How do microservices enable and require DevOps? Real-world examples of microservices
- 3. Microservice is an architectural style where an extensive software application is constructed as a suite of individual, loosely coupled services. What Are Microservices?
- 4. Has a separate database layer, independent codebase, and CI/CD tooling sets. Responsible for preserving data or external state. Is independently deployable and can be tested in isolation. Internal communication happens via well-defined APIs or any lightweight communication protocol. Can select the technology stack, libraries, and frameworks best suited for its use cases. Services should implement Retry functionality. Characteristics of Microservices
- 5. “Micro” means small Microservices entirely eliminate complexity Microservice can “easily” scale systems Microservices work for all applications Misconceptions About Microservices
- 8. Agility Increased resilience and fault tolerance Higher-quality end product Real-time processing Data isolation Benefits of Microservices
- 9. Data consistency Distributed tracing Network congestion and latency Operation overhead Testing Technical debt The Challenges of Microservices
- 10. The first essential step before working on the best practices is to determine whether microservices architecture is a good fit for your requirements Here are the primary practices you should follow for organizing, designing, and implementing microservices architecture: Have a dedicated infrastructure Have a dedicated database Attempt the migration in steps Align the right technology with the right microservice Deploy in containers Best Practices for Implementing a Microservices Architecture
- 11. Containerization platforms Docker Container orchestration platforms Kubernetes (K8s) API management tools API gateways Messaging tools RabbitMQ Kafka Data stores Redis Memcached Service mesh Istio Key Enabling Technologies and Tools
- 12. You have to manage a network of interrelated components to ensure overall reliability. Prometheus and Grafana have emerged as a popular combination for monitoring microservices. Prometheus works well with Kubernetes, and its inherent simplicity makes it ideal for mission-critical microservice-based applications. How to Monitor Microservices?
- 13. When combined, DevOps and microservices offer greater agility and operational efficiency. The services-based approach of microservice architecture allows organizations to break down the application into smaller services. As a result, delivery teams can handle individual services as separate entities and simplify development, testing, and deployment. By combining microservices and DevOps, you can: Develop cloud-native applications Move developments to a flexible architecture Increase productivity and quality of the application Simplify monitoring and observability for developers Accelerate innovation and reduce software development costs Streamline the DevOps process How do Microservices Enable and Require DevOps?
- 14. Netflix The streaming giant started setting up its microservice architecture on AWS in 2009. Within two years, Netflix migrated from a monolith into microservices in phases. Amazon World’s largest online retailer used to run on an extensive monolithic application with many modular yet tightly-coupled components. Best Buy In 2010, Best Buy started transforming its eCommerce platform to break the monolithic, tightly coupled application into microservices. Real-world Examples of Microservices
- 15. When you want your monolithic application to adopt agility, scalability, manageability, and delivery speed When you have to update your legacy applications in today’s programming languages or tech stacks When developers are unable to predict the types of devices on which the app is going to run When your data management team is skilled enough to support the incorporation When you have standalone modules that you want to use across diverse channels If you’re developing a highly agile application When Should You Use Microservice Architecture?
- 16. If your business does not have complex issues If your application is simple by its nature and functionality If you do not have the proper tools and technologies like CI/CD pipeline in place If you do not have a robust system for monitoring and detecting issues for microservices If your team is not mature and is not willing to adapt the technical skills If you have a risk of running too many microservices When Should You Not Use Microservice Architecture?
- 17. Microservices are a nearly perfect solution to the modern software world’s need to deliver faster functionality and reliability. However, the transition from monolithic to microservices can be lengthy and tedious. Concluding
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