Introduction To DevOps | Devops Tutorial For Beginners | DevOps Training For Beginners | Simplilearn
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The document compares the waterfall model and agile approach in software development, highlighting the structured, step-by-step process of the waterfall model and its drawbacks, such as difficulty in handling changing client requirements. In contrast, the agile model emphasizes iterative development with prototypes and constant client feedback, enabling faster delivery but facing challenges like siloed teams and limited testing in production. The document introduces DevOps as an evolution of these models, aiming to bridge gaps between development and operations for improved collaboration and efficiency in software delivery.
Introduction To DevOps | Devops Tutorial For Beginners | DevOps Training For Beginners | Simplilearn
- 2. What’s In It For You? DEV OPS Waterfall Model Agile Model What is DevOps? DevOps Phases DevOps Tools DevOps Advantages
- 4. Waterfall Model Design Requirement Analysis Development Testing Maintenance Waterfall model is a traditional approach of software development In waterfall model, development happens in a step by step manner Design Requirement Analysis Development Testing Maintenance
- 5. Requirement analysis Programmers accept the client requirements and analyze it Waterfall Model Client Programmer Requirements
- 6. Design Requirement analysis Programmers then come up with a project plan and a design architecture Waterfall Model Project plan Requirements Client Programmer
- 7. Programmers code the application as per project plan and design Development Design Requirement analysis Waterfall Model Application Requirements Programmers code according to plan Client Programmer Project plan
- 8. Design Requirement analysis Development Testing Testing ensures the application is error-free and meets the requirements Waterfall Model Testing Requirements Programmers code according to plan Client Programmer Application Project plan
- 9. Design Requirement analysis Development Testing Testing Maintenance Application delivered to client After application is delivered, the operations team maintain the application Waterfall Model Requirements Programmers code according to plan Client Programmer Application Project plan
- 10. Waterfall Model Disadvantage of waterfall model Any new requirements from the client will restart the development cycle Restart development New requirements Client Programmer
- 11. Some of the disadvantages of waterfall model Waterfall Model Disadvantage of waterfall model Product delivered If client is unhappy with the product, the entire project cycle is restarted Client Programmer
- 12. Some of the disadvantages of waterfall model Waterfall Model Disadvantage of waterfall model Product delivered If client is unhappy with the product, the entire project cycle is restarted Client Client is not happy with the product Programmer
- 13. Some of the disadvantages of waterfall model Waterfall Model Disadvantage of waterfall model Product delivered If client is unhappy with the product, the entire project cycle is restarted Client Client is not happy with the product List of changes Programmer
- 14. Some of the disadvantages of waterfall model Waterfall Model Disadvantage of waterfall model Product delivered If client is unhappy with the product, the entire project cycle is restarted Client Client is not happy with the product List of changes Restart the project to apply new changes Programmer
- 15. Some of the disadvantages of waterfall model Waterfall Model Disadvantage of waterfall model Project will take long time to start Until the requirements are not clear, the project cannot start and is eventually delayed Client Unclear requirements Programmer
- 16. Waterfall Model Using waterfall model, companies soon came to realize Client requirements cannot be understood at once Software must be delivered faster and with less resources It is very expensive to make changes during the end of the project
- 17. Agile Model
- 18. Client Client sends his requirements to the programmer Following the Agile model, programmers create prototypes to understand client requirements Agile Model Programmer Requirements
- 19. Client PrototypeProgrammer creates a prototype of the application Agile Model Following the Agile model, programmers create prototypes to understand client requirements Requirements
- 20. Client Client receives the prototype for review Agile Model Following the Agile model, programmers create prototypes to understand client requirements Prototype Requirements
- 21. Client Feedback Client provides feedback and list of changes to be made Agile Model Following the Agile model, programmers create prototypes to understand client requirements Prototype
- 22. Plan Code Test Review Plan Code Test Review Plan Code Test Review The entire process of building a software is broken down into small actionable blocks called sprints Agile Model
- 23. Plan Code Test Review Plan Code Test Review Plan Code Test Review The entire process of building a software is broken down into small actionable blocks called sprints Agile Model Sprint 1 Sprint 2 Sprint 3
- 24. Workflow of Agile model Product backlog Sprint planning Sprint backlog Plan Code Test Review Sprint Daily scrum Deliverable product Product review Agile Model
- 25. Developers and operations team were working in silos Advantages of Agile model Client requirements are better understood because of the constant feedback Product is delivered much faster as compared to waterfall model Disadvantages of Agile model The product gets tested only in developer computers and not on production systems Agile Model
- 26. Advantages of Agile model Client requirements are better understood because of the constant feedback Product is delivered lot faster as compared to waterfall model Disadvantages of Agile model Agile Model Developers and operations team work in silos The product gets tested only on developer computers and not on production systems
- 27. Agile Model Developer Operations Product Developer submit the product to operations team for deployment Production server
- 28. Developer Agile Model Product When the product fails in production servers, the operations team are clueless and send product back to the development team Production server Operations Product
- 29. What is DevOps?
- 30. Operations + Infrastructure Agile addressed the gap between clients and developers Development + Testing Agile What is DevOps? Operations + Infrastructure Development + Testing Client + Requirements DevOps is an evolution from Agile model of software development
- 31. DevOps addressed the gap between Developers and Operations DevOpsAgile Development + Testing Operations + Infrastructure Development + Testing Client + Requirements What is DevOps?
- 32. Client + Requirements Development team will submit the application to the operations team for implementation Agile Operations + Infrastructure Development + Testing What is DevOps? Application
- 33. Client + Requirements Operations team will monitor the application and provide relevant feedback to developers Agile Operations + Infrastructure Development + Testing What is DevOps? Application Feedback
- 34. DevOps Phases
- 35. DevOps Phases According to DevOps practices, the workflow in software development and delivery is divided into 8 phases
- 36. In plan stage, business owners and software development team discuss project goals and create a plan Plan
- 37. Plan Programmers then design and code the application and use tools like Git to store application code Code
- 38. Plan Build tools like Maven and Gradle, take code from different repositories and combine them to build the complete application Code Build
- 39. Plan Code BuildApplication is tested using automation testing tools like Selenium and JUnit to ensure software quality Testing
- 40. Plan Code Build When testing is complete, new features are integrated automatically to the already existing codebase Testing Integrate
- 41. Plan Code Build Application is packaged after release and deployed from development server to production server Testing Integrate Production servers Deploy
- 42. Plan Code Build Testing Integrate Production servers Deploy Once software is deployed, operations team perform activities such as configuring servers and provisioning them with the required resourcesOperate
- 43. Plan Code Build Testing Integrate Production servers Deploy Operate App server Monitoring Monitoring allows IT organization to identify specific issues of specific releases and understand the impact on end-users
- 44. DevOps Tools
- 46. DevOps Processes
- 48. Continuous Integration Release Defect / Failure Repeat the build process Continuous integration TestBuildCodePlan
- 49. Continuous deployment Monitor Deployment Success Release Defect / Failure Repeat the build process Operate Continuous Deployment TestBuildCodePlan
- 51. DevOps Advantages Companies which follow DevOps, release more products and features within a short amount of time
- 52. DevOps Advantages Companies which follow DevOps, release more products and features within a short amount of time
- 53. DevOps Advantages Companies which follow DevOps, release more products and features within a short amount of time
- 54. DevOps Advantages Time taken to create and deliver software is reduced
- 55. DevOps Advantages Time taken to create and deliver software is reduced Complexity of maintaining an application is reduced
- 56. DevOps Advantages Time taken to create and deliver software is reduced Complexity of maintaining an application is reduced Improved collaboration between developers and operations team
- 57. DevOps Advantages Time taken to create and deliver software is reduced Complexity of maintaining an application is reduced Improved collaboration between developers and operations team Continuous integration and delivery ensure faster time to market
- 58. Key Takeaways
Editor's Notes
- #11: show client giving new requirement
- #12: show client giving new requirement
- #13: show client giving new requirement
- #14: show client giving new requirement
- #15: show client giving new requirement
- #16: show client giving new requirement
- #48: At this slide there is a background placeholder. Click to the small icon on the center of the slide and choose an image from your computer. After you added the image, you must sent it to back with Right Click on Image -> Send to Back -> Send to Back.
- #49: At this slide there is a background placeholder. Click to the small icon on the center of the slide and choose an image from your computer. After you added the image, you must sent it to back with Right Click on Image -> Send to Back -> Send to Back.
- #50: At this slide there is a background placeholder. Click to the small icon on the center of the slide and choose an image from your computer. After you added the image, you must sent it to back with Right Click on Image -> Send to Back -> Send to Back.