What is DevOps ? DevOps Overview, Development + Operations

1. DevOps:
Traditional To DevOps
Transformation
One of The Top Trends in IT Industry
Created By: Rahul Tilloo
(Team Om Sir)

2. Contents:
▰ Software Delivery
▰ DevOps Tool Chain
▰ DevOps Tools
▰ Need of DevOps
▰ DevOps Challenges
▰ Conclusion
▰ Other Top Trending
Technologies 2
▰ DevOps Overview
▰ What Actually DevOps is?
▰ CALMS
▰ Agile Approach
▰ Agile Vs DevOps
▰ Typical Deployment
Landscape

3. “DevOps is the practice of development and
operation engineers participating together in
the entire service lifecycle,
from design through the development
process to production support.
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DevOps

4. What Actually is DevOps?
DevOps is a software
development methodology that
stresses communication,
collaboration, integration
between software developers,
testers and information
technology professional.
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5. What Actually is DevOps?
DevOps is an approach based on agile and lean principles in which business owners,
development, operations, and quality assurance team collaborate to deliver software
in a continuous stable manner.
▰ DevOps is an environment that promotes cross practicality, shared business tasks
and belief
▰ DevOps is a movement that improves IT service delivery agility
▰ DevOps is a culture that promotes better working relationship within the company
▰ DevOps is a set of practices that provides rapid, reliable software delivery
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6. DevOps is About CALMS
Culture
▰ People and process first
▰ If you don’t have culture, all automation attempts will be fruitless
▰ Culture of shared responsibility
Automation
▰ Automating Manual Tasks using tools which can only be achieved
after cultivating a proper work culture
▰ Team members seek out ways to automate as many tasks as
possible and are comfortable with the idea of continuous delivery
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7. CALMS:
Lean
▰ Team members are able to visualize WIP, limit batch sizes and manage queue lengths
Measurement
▰ If you can’t measure, you can’t improve
▰ Measurement of everything it can as often as it can
▰ Performance metrics, process metrics, and even people metrics
Sharing
▰ Creating a culture where people share ideas and problems is critical
▰ This user-friendly communication channel encourages ongoing communication between
development and operations 7

8. The Agile Approach:
What is Agile Methodology
▰ Agile Methodology is practice which involves continuous iteration
of development and testing in the SDLC process.
▰ This software development methodology emphasizes on iterative,
incremental, and evolutionary development.
▰ Agile development process breaks the product into smaller pieces
and integrates them for final testing.
▰ It can be implemented in many ways, like scrum
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9. Agile vs DevOps Approach:
▰ Agile addresses gaps in Customer and Developer communications
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10. Agile vs DevOps Approach:
▰ DevOps addresses gaps in Development and IT Operations communications
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11. Agile Vs DevOps
▰ Addressing the gaps between
Customer requirement and
Dev + Testing Team
▰ Cross Functional Teams to
design, develop and test
features and stories
prioritised by Customer
▰ Focuses more on functional
and non-functional
requirement.
▰ Addresses the gap between
Dev + Testing and Ops
▰ Automated release
management
▰ Focuses on functional and
non-functional plus operation
and business readiness
▰ Intensifies readiness and
automation
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12. 12
A Typical Deployment Landscape

13. 13
Time to Delivery Internal software release once every 3-6 months Internal software release multiple
times a week
Quality and Testing Manual Testing of upto 50% of software releases
performed by large teams
Automated testing with more than
80% coverage requires limited
human intervention to validate
Software
Deployment
Manual Deployment of software can take multiple
individual steps; limited success
Fully automated deployment of
software; once click process can
launch multiple steps at a time
Monitoring and
Support
Reactive Software Monitoring issues, downtime
reported to users in hours, days
Proactive software health-
monitoring issues, downtime
reported to users in seconds,
preventive actions taken at defined
thresholds
Traditional Software Delivery VS DevOps Software Delivery
Software Delivery

14. 14
DevOps Toolchain:
▰ Plan
▰ Code
▰ Build
▰ Test
▰ Package
▰ Release
▰ Configure and Deploy
▰ Monitor and Operate

15. DevOps Toolchain Processes:
▰ Automate Provisioning - Code development and review, source code
management tools, code merging
▰ Automate Builds – Continuous Integration, Build Status
▰ Automate Testing – Continuous Testing, Automated Tests
▰ Automate Deployments – Defined Deployment Pipeline and Continuous
Deployments with appropriate configurations for the environments
▰ Automate Monitoring – Proper monitors in place, sending alerts
▰ Automate Metrics – Performance Metrics, Logs
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16. DevOps Tools to Automate Processes:
Version Control Tools
➔ Git
➔ Apache Subversion
Continuous Integration Tools
➔ Jenkins
➔ Teamcity
➔ Bamboo
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Continuous Testing Tools
➔ Selenium
➔ TestComplete
➔ Cucumber
➔ Load Runner
Containerization Tools
➔ Docker
➔ Rkt (Rocket)
Configuration Management Tool
➔ Puppet
➔ Chef
➔ Ansible
➔ Jira
Continuous Monitoring and Log
Management Tool
➔ Splunk
➔ Nagios
➔ ELK

17. Why do we need DevOps?
Top technology trends are impacting how organizations operate
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18. Traditional Lifecycle Development ‐ Challenges
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19. Emerging Technologies Need a New Development Lifecycle
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20. 20
Challenges in Implementing DevOps in Organizations:

21. When To Implement DevOps:
When To Adopt
▰ For E-commerce and
other web site
projects
▰ For Cloud Platforms
When Not to Adopt
▰ Mission critical
applications
▰ Ex: Banks, Power Systems
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22. Coming From To
One of the Most Important Results of Implementing DevOps
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Failure is not a cause for blame, it is a vehicle for change, learning,
and improvement.

23. Conclusion:
Technical Benefits:
➔ Continuous
software delivery
➔ Less complexity to
manage
➔ Faster resolution of
problems
Cultural Benefits:
➔ Happier, more
productive teams
➔ Higher employee
engagement
➔ Greater professional
development
opportunities
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Business Benefits:
➔ Faster delivery of
features
➔ More stable operating
environments
➔ Improved communication
and collaboration
➔ More time to innovate
(rather than fix/maintain)

24. Other Trending Technologies in Market:
➔ Block Chain
➔ RPA
➔ AI
➔ IOT
➔ Cloud Computing
➔ Big Data
➔ Data Science
➔ AR and VR
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25. References:
▰ DevOps - Wikipedia
▰ DevOps.com
▰ Guru99.com
▰ Atlassian.com
▰ DevOps White Paper - Happiest
Minds
▰ Architecting.co.uk
▰ Sei.cmu.edu
▰ Edureka - Youtube
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Thank You!