What is a microservice?
A microservice is a small, independent, and self-contained piece of software that performs a specific function. For example, a microservice could handle user authentication, payment processing, or product recommendation. A microservice has its own code, data, and resources, and communicates with other microservices through well-defined interfaces.
What is cloud native?
Cloud native is an approach to building and running applications that take advantage of the cloud computing model. Cloud native applications are designed to be scalable, resilient, and agile, and can run on any cloud platform or service. Cloud native applications are composed of microservices that are packaged in containers, orchestrated by platforms like Kubernetes, and managed by tools like Helm and Istio.
Why use cloud native microservice?
Cloud native microservice offers many benefits for developers and businesses, such as:
Faster development and delivery: Microservices can be developed, tested, and deployed independently, without affecting other parts of the system. This enables faster feedback loops, continuous integration and delivery, and shorter time to market.
Greater scalability and reliability: Microservices can scale up or down according to the demand, and can handle failures gracefully, without impacting the whole system. This improves the performance, availability, and resilience of the application.
Easier maintenance and evolution: Microservices can be updated, replaced, or removed without affecting other parts of the system. This simplifies the maintenance and evolution of the application, and allows for faster innovation and experimentation.
More flexibility and choice: Microservices can be written in different languages, frameworks, and technologies, and can run on different cloud platforms and services. This gives developers more flexibility and choice, and allows for the best fit for each function.
How to get started with cloud native microservice?
To get started with cloud native microservice, you will need to:
Design your microservices: Identify the functions and features of your application, and break them down into small, cohesive, and loosely coupled microservices. Define the interfaces and contracts between the microservices, and the data and logic that each microservice will handle.
Develop your microservices: Choose the languages, frameworks, and technologies that suit your microservices, and write the code, tests, and documentation for each microservice. Use tools like Docker and Buildpacks to package your microservices into containers, and tools like GitHub and GitLab to store and manage your code.
Deploy your microservices: Choose the cloud platform or service that meets your needs, and use tools like Kubernetes and Helm to orchestrate and manage your microservices. Use tools like Istio and Linkerd to provide service discovery, load balancing, routing, security, and observability for your microservices. Use tools like Prometheus and Grafana to monitor and troubleshoot your microservices.
Improve your microservices: Use tools like Jenkins and Tekton to automate the build, test, and deployment of your microservices. Use tools like Spinnaker and Argo to implement continuous delivery and progressive rollout of your microservices. Use tools like Flagger and Flagger to perform canary testing and feature flagging of your microservices. Use tools like Keptn and Sloop to optimize the performance and quality of your microservices.
Conclusion
Cloud native microservice is a modern and powerful way to build and run applications that are scalable, resilient, and agile. By using microservices, containers, orchestration, and management tools, you can create cloud native applications that can run on any cloud platform or service, and deliver faster, better, and cheaper results.