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Introduction to DevOps | Edureka
The document is a comprehensive tutorial on DevOps, covering its definition, phases, and tools, as well as comparing DevOps with the traditional waterfall and agile methodologies. It discusses the limitations of these models and emphasizes the importance of specific DevOps practices such as continuous integration, continuous delivery, and continuous monitoring. Additionally, practical use cases illustrate the application of DevOps in software development through version control and containerization techniques.
In this document
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Overview of DevOps with topics such as what is DevOps, why it's needed, and an outline of today's session.
Discussion on the Waterfall model, its characteristics, and limitations including high risk, late software delivery, and unsuitability for complex projects.
Introduction to Agile methodology with focus on iterations, delivery of working products, and its limitations highlighted by integration issues.
The need for DevOps as a solution to issues faced in traditional and Agile methods.
Detailed breakdown of DevOps stages including Source Code Management, Continuous Integration, Delivery, Deployment, Configuration Management, and Continuous Monitoring. Practical application of DevOps processes including tasks like Git repository management, building Docker images, and deployment workflows.
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- 2. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Topics for Today’s Session DevOps Tutorial 2 3 4 5 1 Why DevOps? What is DevOps? DevOps Stages DevOps Tools DevOps Use-Case www.edureka.co/devopsDevOps Certification Training
- 3. Copyright © 2017,edureka and/or its affiliates. All rights reserved. Waterfall Model It has distinct goals for each phase of development. Imagine a waterfall on the cliff of a steep mountain. Once the water has flowed over the edge of the cliff, it cannot turn back. It has distinct goals for each phase of development. Imagine a waterfall on the cliff of a steep mountain. Once the water has flowed over the edge of the cliff, it cannot turn back.
- 4. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Traditional Waterfall Model www.edureka.co/devopsDevOps Certification Training
- 5. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Limitations of Waterfall Model Not a good model for complex and object-oriented projects. No working software is produced until late during the life cycle. Not suitable for the projects where requirements are at a moderate to high risk of changing. Once an application is in the testing stage, it is very difficult to go back and change something that was not well- thought out in the concept stage. High amounts of risk and uncertainty
- 6. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training What is Agile Methodology? In the Agile Methodology each project is broken up into several ‘Iterations’ In the Agile Methodology each project is broken up into several ‘Iterations’ All Iterations should be of the same time duration (between 2 to 8 weeks) All Iterations should be of the same time duration (between 2 to 8 weeks) At the end of each iteration, a working product should be delivered At the end of each iteration, a working product should be delivered
- 7. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Waterfall vs Agile
- 8. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Limitations of Agile Code works fine in my laptop Code works fine in my laptop There is some problem with the code, it does not work in production` There is some problem with the code, it does not work in production` Wants ChangeWants Change Wants StabilityWants Stability
- 9. Copyright © 2017,edureka and/or its affiliates. All rights reserved. Solution is DevOps
- 10. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training What is DevOps?
- 11. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training DevOps Stages Source Code Management Continuous Build Continuous Testing 040302020101 Version ControlVersion Control Continuous Integration Continuous Integration Continuous Delivery Continuous Delivery Continuous Deployment Continuous Deployment Compile, validate, Code Review, Unit Testing, Integration Testing Deploying the build application to test servers, Performing UAT Deploying the tested application on the prod server for release. Maintains different versions of the code Configuration Management and Containerization Continuous MonitoringContinuous Monitoring
- 12. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Source Code Management The management of changes to documents, computer programs, large websites and other collection of informationThe management of changes to documents, computer programs, large websites and other collection of information Distributed Version Control SystemDistributed Version Control SystemCentralized Version Control SystemCentralized Version Control System RepositoryRepository RepositoryRepository RepositoryRepository RepositoryRepository Working CopyWorking Copy Working CopyWorking Copy Working CopyWorking Copy Workstation/ PC #1 Workstation/ PC #2 Workstation/ PC #3 Commit Update Commit Update Commit Update Push Pull Server RepositoryRepository Working CopyWorking Copy Working CopyWorking Copy Working CopyWorking Copy Workstation/ PC #1 Workstation/ PC #2 Workstation/ PC #3 Server Commit Update
- 13. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Source Code Management Git is a Distributed Version Control tool that supports distributed non-linear workflows by providing data assurance for developing quality software Git is a Distributed Version Control tool that supports distributed non-linear workflows by providing data assurance for developing quality software
- 14. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Continuous Integration
- 15. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Continuous Delivery
- 16. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Continuous Deployment
- 17. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Configuration Management Configuration Management is the practice of handling changes systematically so that a system maintains its integrity over time Configuration Management (CM) ensures that the current design and build state of the system is known, good & trusted It doesn’t rely on the tacit knowledge of the development team
- 18. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Configuration Management Other ToolsOther Tools
- 19. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Containerization
- 20. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Continuous Monitoring Continuous Monitoring is all about the ability of an organization to detect, report, respond, contain and mitigate the attacks that occur, in its infrastructure Continuous Monitoring is all about the ability of an organization to detect, report, respond, contain and mitigate the attacks that occur, in its infrastructure
- 21. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Continuous Monitoring
- 22. Copyright © 2017,edureka and/or its affiliates. All rights reserved. Use-Case
- 23. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training DevOps Use-Case Part - 1 Clone the Git Repository Clone the Git Repository Build a Docker Image Build a Docker Image Push the image on Docker Hub Push the image on Docker Hub Developers committing code to a shared repository Developers committing code to a shared repository Git RepositoryGit Repository
- 24. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training DevOps Use-Case Part - 2
- 25. Copyright © 2017,edureka and/or its affiliates. All rights reserved.
- 27. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Source Code Management Git is a Distributed Version Control tool that supports distributed non-linear workflows by providing data assurance for developing quality software Git is a Distributed Version Control tool that supports distributed non-linear workflows by providing data assurance for developing quality software Working DirectoryWorking Directory Staging AreaStaging Area Local RepoLocal Repo Remote RepoRemote Repo Git Add Git Commit Git Push Git Pull Git Checkout Git Merge Local Remote
- 28. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Limitations of Agile
- 29. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training DevOps Use-Case Developers committing code to a shared repository Developers committing code to a shared repository Git RepositoryGit Repository
- 30. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Source Code Management Git is a Distributed Version Control tool that supports distributed non-linear workflows by providing data assurance for developing quality software Git is a Distributed Version Control tool that supports distributed non-linear workflows by providing data assurance for developing quality software Local Remote
- 31. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training DevOps Use-Case Clone the Git Repository Clone the Git Repository Build a Docker Image Build a Docker Image Push the image on Docker Hub Push the image on Docker Hub Developers committing code to a shared repository Developers committing code to a shared repository Git RepositoryGit Repository
- 32. Copyright © 2017,edureka and/or its affiliates. All rights reserved. DevOps Tutorial www.edureka.co/devopsDevOps Certification Training Continuous Deployment Test Server Commit code to a shared repository Jenkins Server BuildBuild CompileCompile Code ReviewCode Review Unit TestingUnit Testing Integration TestingIntegration Testing Package (WAR, JAR etc.)Package (WAR, JAR etc.) Deploy the build application on the test server for UAT (User Acceptance Test) Deploy the build application on the prod server for release