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DevOps introduction

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DevOps introduction

  1. 1. Sridhara T V Sridhara T V Dev Ops
  2. 2. Sridhara T V Technical Challenges 3 Traditional Development 2 Integrated Approach4 Concepts Technologies 5 DevOps Tools6 CI / CD 5 DevOps in Cloud6 DevOps Overview 1
  3. 3. Sridhara T V What is DevOps ➢DevOps is the philosophy of unifying Development and Operations at the culture, practice, and tool levels, to achieve accelerated and more frequent deployment of changes to Production ➢The term “DevOps” typically refers to the emerging professional movement that advocates a collaborative working relationship between Development and IT Operations, resulting in the fast flow of planned work (i.e., high deploy rates), while simultaneously increasing the reliability, stability, resilience and security of the production environment
  4. 4. Sridhara T V DevOps ➢DevOps refers to a collaborative culture between technical teams ➢It encompasses much more than just development and operations extending to QA testing, releases and much more ➢By aligning goals and sharing strategies, DevOps practices can improve efficiency and quality of product/code shipped, allowing businesses to innovate quickly while providing a higher standard of support
  5. 5. Sridhara T V DevOps is about CAMS Culture Automation Measurement Sharing
  6. 6. Sridhara T V Traditional IT Problems ➢Development and Operations team work in isolation ➢Dev team follows a life-cycle model – Waterfall, V, TDD ➢System Testing is performed after complete development ➢Team is spending lot of time in design, testing and deployment and less focus in productization ➢Most often deployment is a manual process ➢Development team and Operations team have separate timelines and in most cases are not in sync ➢Product is deployed into production few times a year ➢Dev team is not aware of or does not have access to production environment
  7. 7. Sridhara T V Software Delivery Bottlenecks Lack of alignment between IT and business goalsPlan and Measure Complexity of tools, languages and platforms Poorly integrated teams across application lifecycle Lack of automated and scalable testing methods High cost of setting up and maintaining test environments Develop and Test Application release process is error-prone and slow Release and Deploy Lack of centralized incident management and monitoring Slow or unresponsive to customer feedback Monitor and Optimize
  8. 8. Sridhara T V Challenges ➢Dev and Ops people have conflicting goals ➢Operations people have bean beaten into defensive mode ➢Teams are so used to the Dev Vs Ops way of working
  9. 9. Sridhara T V Symptoms ➢Defects released into production – causing outage ➢Inability to diagnose production issues swiftly ➢Problems appear in some environments only ➢Blame game – shifting/finger pointing ➢Long delays while Dev, QA or another team waits on resources or response from other teams / stake holders ➢“Manual Error” is a commonly cited root-cause ➢Release either slip or fail at first attempt ➢Quality of “personnel-life” issues!
  10. 10. Sridhara T V DevOps Culture DevOps Culture Accounta bility Trust Honesty
  11. 11. Sridhara T V Why DevOps Used ➢Predictability ➢Reproducibility ➢Maintainability ➢Time to market ➢Greater Quality ➢Reduced Risk ➢Resiliency ➢Cost Efficiency ➢Breaks larger code base into small pieces
  12. 12. Sridhara T V DevOps Life Cycle Dev Ops
  13. 13. Sridhara T V DevOps Stages Integrate Test Continuous Integration Release Continuous Delivery Deploy Continuous Deployment Operate DevOps MonitorFeedback BuildPlan Design Code Continuous Development
  14. 14. Sridhara T V Agile with DevOps Provision Configure Orchestrate Deploy Report Monitor Design Code Refactor Unit Test Bug Fix Deploy Business Case Requirements Use Case Features Plan Go to Market Dev Ops Agile Software Development - Iterative development - Sprints, Stories, Feedback - Velocity - IT Automation - Continuous Integration - Continuous Deployment Business Agility IT Agility Business Developers IT Operations
  15. 15. Sridhara T V Agile Vs DevOps Agile DevOps Emphasize breaking down barriers between developers and management DevOps is about software deployment and operation teams Addresses gap between customer requirements and development teams Addresses the gap between development and Operation team Focuses more on functional and non- functional readiness Focuses operational and business readiness Agile development pertains mainly to the way development is thought out by the company DevOps emphases on deploying software in the most reliable and safest ways which are not necessarily always the fastest
  16. 16. Sridhara T V Agile Vs DevOps Agile DevOps Agile development puts a huge emphasis on training all team members to have varieties of similar and equal skills. So that, when something goes wrong, any team member can get assistance from any member in the absence of the team leader DevOps, likes to divide and conquer, spreading the skill set between the development and operation teams. It also maintains consistent communication Agile development manages on “sprints”. It means that the time table is much shorter (less than a month) and several features are to be produced and released in that period DevOps strives for consolidated deadlines and benchmarks with major releases, rather than smaller and more frequent ones
  17. 17. Sridhara T V DevOps Principles ➢Customer-Centric Action ➢End-To-End Responsibility ➢Continuous Improvement ➢Automate everything ➢Work as one team ➢Monitor and test everything
  18. 18. Sridhara T V Advantages of DevOps Silo-Free Faster Release Lesser Bugs Lower Cost Better Quality Continuous Integration Automatic Deployment
  19. 19. Sridhara T V Optimizing Development and Operations
  20. 20. Sridhara T V DevOps Adoption Model ENVIRONMENT People, Organization, Laws, Regulations, Culture, Competitors PRINCIPLE 1. Self Directed Team Over Command and Control 2. Course Correction Over Perfection 3. Automated Over Manual MANAGEMENT FRAMEWORK 1. People First 2. Org Structure 3. Capability development 4. Budget 5. Risk Managemet 6. Assets Management 7. Change Management 8. Security Management PRACTICES 1. Infrastructure as Code 2. Dashboard 3. Working Backwords 4. Open Source 5. DevOps skill Metrics 6. Audit automation 7. Self service VALUE PURPOSE Continuously deliver customer value in a sustainable way with improved lead time, resilience and quality How can we Improve the work What kind of problems are we trying to solve How can we Develop People
  21. 21. Sridhara T V DevOps Adoption PROCESS TECHNOLOGY TIME TO MARKET COLLABORATION CUSTOMER SATISFACTION PROCESS ADOPTION CLOUD ADOPTION FOUNDATIONAL Usage by Team member Ad-hoc release Team isolated Personal feedback Ad-hoc process Team working with VMs REPEATABLE Usage by a department Periodic Release Team Communicative Service Level feedback Inconsistent process Department level RELIABLE Usage by few departments Frequent releases Team collaborative Department level feedback Shared process Few departments OPTIMIZED Enterprise wide usage Continuous release Team unified Organization level feedback Aligned processed corporate wide Cloud fully embraced
  22. 22. Sridhara T V How to Implement DevOps ➢Start Small but not too small ➢Create a culture of Experimentation and Learning ➢Engineer Resilience and Adaptivity ➢Get Buy-In from all teams ➢Eliminate Blame culture DevOps requires 4 T-s Teamwork, Tools, Techniques and Tenacity
  23. 23. Sridhara T V Get Started with DevOps ➢Target DevOps efforts to the parts of the business that deliver the most impact ➢Understand the work that needs to be done in DevOps value streams ➢Identify DevOps teams and leadership ➢Build critical mass as you go ➢Assign members of the dedicated team to be solely allocated to the DevOps transformation efforts
  24. 24. Sridhara T V Get Started with DevOps ➢Have specific, measurable goals for the DevOps team ➢Select team members who are generalists, who have skills across a wide variety of domains ➢Use a common, shared DevOps toolset ➢Fund services and products, not “projects” ➢Create loosely coupled architectures ➢Automate!
  25. 25. Sridhara T V DevOps Automation Tools ➢Infrastructure Automation ➢Configuration Management ➢Deployment Automation ➢Performance Management ➢Log Management ➢Monitoring
  26. 26. Sridhara T V DevOps Tools Dev Ops
  27. 27. Sridhara T V DevOps and Cloud - A match made in Heaven ➢DevOps and Cloud are complementary to each other ➢Cloud makes it easy to implement DevOps services because of inherent abstraction of complexities ➢Cloud provides added advantage of Agility, Scalability and On-Demand availability to DevOps services ➢A combination of Cloud and DevOps provides a definite advantage over the competition
  28. 28. Sridhara T V DevOps Stack on AWS Code Build Test Deploy Provision Monitor Code Commit Code Pipeline Elastic Beanstalk OpsWorks Elastic Container Service Code Deploy CloudWatch CloudFormation Code Pipeline X-Ray
  29. 29. Sridhara T V DevOps Stack on Azure
  30. 30. Sridhara T V Containers ➢A standard way to package an application and all its dependencies so that it can be moved between environments and run without changes. ➢Containers work by isolating the differences between applications inside the container so that everything outside the container can be standardized
  31. 31. Sridhara T V Containers Vs VM’s ➢Containers are more lightweight and faster ➢No need to install guest OS ➢Less CPU, RAM, storage space required ➢More containers per machine than VMs ➢Greater portability ➢Containers are easy to manage as they share a common OS ➢Share multiple workloads on a single OS ➢Containers are a better way to develop and deploy microservices compared with VMs.
  32. 32. Sridhara T V Dockers ➢Docker is a platform for developing, shipping and running applications using container technology ➢Docker provides a means to package and application with all its dependencies into standardized unit for software development ➢It provides isolation, so applications on the same host and stack can avoid dependency conflict ➢It is portable, so you can be sure to have exactly the same dependencies at runtime during development, testing and in production
  33. 33. Sridhara T V Docker Use Cases ➢Development Environment ➢Environments for Integration Tests ➢Quick evaluation of software ➢Microservices ➢Multi-Tenancy ➢Unified execution environment ➢dev -> test -> prod (local, VM, cloud)
  34. 34. Sridhara T V
  35. 35. Sridhara T V Security in DevOps ➢Base security configurations ➢Centralized authentication and authorization ➢Host based firewall rules per role and environment ➢Validate code against corporate security policies ➢Centralized audit logs ➢Automated vulnerability scans ➢Easier and tested patching ➢Mitigate insecure configurations ➢Security Information and Event Monitoring
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