Introduction to Microservices
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This document provides an introduction to microservices, including a comparison to monolithic architectures. It discusses advantages and disadvantages of both monoliths and microservices. Monoliths have disadvantages including being difficult to change and maintain as well as not scaling well. Microservices aim to address these issues by developing applications as suites of small, independent services. The document outlines some key principles of microservices, such as independent deployment and technology choices, as well as advantages like improved scalability and flexibility.
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Introduction to Microservices
- 1. Introduction to Microservices Duduman Bogdan Vlad @vlad_duduman
- 2. Agenda Monoliths Monoliths advantages and disadvantages Microservices Principles of microservices Microservices advantages and disadvantages
- 3. Monoliths Netflix. Amazon.com, Ebay, Paypal Single-Tiered Software application Responsible not for a particular task Long build time Building and deploying the whole application Support only vertical scaling
- 5. Monoliths Advantages A single layered architecture A single technology stack A single code base maintained by multiple teams Disadvantages All parts are interconnected Many other systems are connected to your system Hard to change, hard to maintain Slow innovation Hard to move to newer technologies Doesnt scale very well
- 6. Monoliths Disadvantages As the team grows, will eventually start to break down Technical debt Not broken, dont fix it
- 7. Monoliths. Dependencies will kill you
- 8. The Microservices Way An approach to developing a single application as a suite of small services. - Martin Fowler
- 10. Microservices First time discussed 2011 Just a rebranding of SOA? Micro indicates the scope is limited to a single functionality
- 11. Microservices
- 12. Microservices
- 21. Microservices. Advantages Simple Modularity New features as microservices Small codebase Easy to scale Easy to deploy - loosely coupled System resilience
- 22. Microservices. Advantages Technology independent Replaceable parts High performance Polyglot persistence Easy to test Autonomous Specification change is frequent
- 23. Microservices. Advantages Single Responsibility Principle Light-weight communication
- 24. Microservices. Principles and practices Set up a set of guiding principles Create practices that support these principles Create example implementations and service templates Make it easy for the team to do the right thing In order to move to this, you will need to get better at: Architecture Testing Deployment A team should be able to rebuild a service in two weeks
- 25. Microservices. Common Patterns 1. Almost all the successful microservice stories have started with a monolith that got too big and was broken up 2. Almost all the cases where Ive heard of a system that was built as a microservice system from scratch, it has ended up in a serious trouble
- 27. Thanks