Building Big Architecture

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Ramit Surana @ramitsurana /in/ramitsurana Building Big Architecture Exploring Journey from monolithics to microservices

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Agenda • Why is this important ? • Defining SOA • What are Monoliths ? • What are Microservices ? • About Docker • Principles of Microservices • Refactoring • 12 Factor App • Conway's Law • Coupling • Case Studies

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About Me • Open Source Guy • Contributor to Docker, CoreOS and Kubernetes community. • Open Source community speaker. • Contact me: [email protected]

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Important Sayings

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Why is this important ?

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SOA(Service Oriented Architecture) Architectural pattern in computer software design in which application components provide services to other components via a communications protocol, typically over a network.

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Before and After SOA

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SOA Mythology

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Overview of Monolith Architecture

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Monolithics • Single Runtime • Single Codebase • Layered architecture • Initialization of the system may be tricky or laborious. • Change to the control flow is impossible. • An application where all of the logic runs in a single app server.

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Microservices

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Overview of Microservices Architecture

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Microservices • Loosely coupled service oriented architecture with bounded contexts. • Design for failure • Decentralized Governance • Decentralized Data Management. • Componentization via Services

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Microservices vs Monolithic

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About Docker • Open platform for developers and sysadmins to build, ship, and run distributed applications. • Docker enables apps to be quickly assembled from components. • It eliminates the friction between development, QA and production environments.

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The Problem

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Using Monolithic Developer Developer Developer Developer Developer Java Java Java Java Java Production Release Cycles

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Using Microservices Developer Developer Developer Developer Developer Redis Golang NodeJS Java Php Release Cycles Production

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Using Docker Hub with Microservices Developer Developer Developer Developer Developer Configure Configure Configure Configure Configure Release Cycles Production Docker Hub

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Using Orchestration Developer Developer Developer Developer Developer Configure Configure Configure Configure Configure Release Cycles Production Docker Hub Orchestration Engine

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Using Orchestration Developer Developer Developer Developer Developer Configure Configure Configure Configure Configure Release Cycles Production Docker Hub Orchestration Engine

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Using PaaS Developer Developer Developer Developer Developer Configure Configure Configure Configure Configure Release Cycles Production Docker Hub Orchestration Engine PaaS

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Principles Governing Micro services

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Coupling • Tight coupling leads to huge, monolithic systems that are difficult to maintain or improve upon • If changing one module in a program requires changing another module, then coupling exists.

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12 Factor app

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Conway's Law "Any organization that designs a system … will inevitably produce a design whose structure is a copy of the organization's communication structure."

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Refactoring • Process to change the existing code without changing its external behavior. • Refactoring improves nonfunctional attributes of the software.

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Comparison of perfomance

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But What about DevOps ?

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DevOps • DevOps is a company culture where the Developers movement or practice emphasizes the collaboration and communication of both software developers and other information-technology (IT) professionals. • It helps in automation and making delivery fast.