Introduction to micro-services @DevOps pune Meetup
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This document provides an introduction to microservice architecture and discusses how Docker can be used to implement microservices. It begins with an overview of monolithic applications versus microservices and the benefits of using microservices such as independent deployment and scalability. It then discusses how Docker can help develop, ship and run distributed microservice applications through the use of containers. The remainder of the document demonstrates building a sample online test application using microservices and Docker, and addresses some common questions and challenges around microservice architecture.
Introduction to micro-services @DevOps pune Meetup
- 1. INTRODUCTION TO MICROSERVICE @DevOps Pune 13th March 2016
- 2. AGENDA Service Oriented Architectures Micro-services Architecture Why it is helpful Insights about Docker and MEAN Stack Role of Docker Demo (Micro-services based MEAN stack application on DOCKER)
- 3. WHO AM I? Cloud and DevOps Engineer DevOps by Profession and developer by Heart Blogger (oss-world.blogspot.in) Linkedin: https://in.linkedin.com/in/rahulkhengare
- 4. TARGET AUDIENCE Knowledge about web based applications Basics of Docker
- 6. MONOLITHIC APPLICATION UI Components Business Logic Database User Shopping Application OS
- 7. MONOLITHIC All functionality is in single process Macro or single tier application Resides on single machine Front end, business logic and data access merged in single code
- 8. BENEFITS OF MONOLITHIC Easy to Develop Easy to Test Easy to Scale: Just run multiple instances of application on different servers Easy Deployment Process (just one war file in case of JAVA)
- 9. DRAWBACKS OF MONOLITHIC Manageability of code Difficult to deploy or rebuild Stuck with same technology stacks Scaling of Application Rigorous testing after change deployment Application Downtime
- 10. MICRO-SERVICES Composed of small, independent, narrowly-focused processes communicating with each other using language independent APIs Like UNIX commands, which are designed to do one single thing but can be piped together to perform some complex operations Loosely coupled, fine-grained, follows the Single Responsibility Principle Resource Independent Netflix, Amazon, LinkedIn, Groupon, PayPal, Airbnb, The Guardian are using already
- 11. MICRO-SERVICE APPLICATION UI Components Business Logic Inventory User Shopping Application OS UI Components Business Logic OS UI Components Business Logic Cart/checkout OS UI Components Business Logic Users OS LOAD BALANCER Orders/shipping
- 12. WHY TO USE MICRO-SERVICES Technology agnostic Independent Rapid Deployment Helps replacing individual services using API Failure Isolation Scalability Flexibility
- 13. LETS BUILD MICRO-SERVICES L O A D B A L A N C E R 1 MONOLITHIC APP ~ 100 MICRO-
- 14. QUESTIONS?? How to architect my application? How to manage micro-services locally? How to ensure latest version of application? How to deploy them to production? What technology should I use?
- 16. WHAT IS DOCKER Open Source Container Framework Helps developer or sysadmin to develop, ship, and run distributed applications Operating system level virtualization Container uses kernel features such as CGROUPS, NAMESPACES, SELINUX, AUFS Docker images are IMMUTABLE
- 17. VIRTUAL MACHINE VS DOCKER CONTAINER
- 18. DOCKER FLOW
- 19. HOW DOCKER HELP Docker Mission: Build, ship, run any application anywhere Use as platform for management of application containers Create a Docker container of your micro-services Run each micro-service in separate container Scaling is fun with Docker Use of Docker compose will stack your micro-service application as single application
- 20. MEAN STACK
- 21. DEMO
- 22. ONLINE TEST APP Docker Host SERVER NGINX Docker Test functionality container MongoDB container Security functionality container CLIENT APP Container PORT 5000 PORT 80 PORT 5002 PORT 5001 PORT 27017
- 23. TARGET APPLICATIONS Not suitable for simple applications Highly scalable applications Distributed functionality
- 24. CHALLENGES How to break application in micro-services Unmanageability Performance about series of dependent services Learning curve for new developer
- 25. ANY QUESTIONS??
- 26. THANK YOU!!