Introduction to DevOps | Edureka

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DevOps Tutorial
www.edureka.co/devopsDevOps Certification Training
Agenda
What is DevOps?
DevOps Use Case
DevOps Phases
DevOps Hands-On

DevOps Tutorial
Topics for Today’s Session
DevOps Tutorial
2
3
4
5
1 Why DevOps?
What is DevOps?
DevOps Stages
DevOps Tools
DevOps Use-Case

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.

DevOps Tutorial
Traditional Waterfall Model

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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

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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

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Waterfall vs Agile

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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

Solution is DevOps

DevOps Tutorial
What is DevOps?

DevOps Tutorial
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

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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

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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

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Continuous Integration

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Continuous Delivery

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Continuous Deployment

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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

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Configuration Management
Other ToolsOther Tools

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Containerization

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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

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Continuous Monitoring

Use-Case

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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
a shared repository
Git RepositoryGit Repository

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DevOps Use-Case Part - 2

Introduction to DevOps | Edureka

DevOps Tutorial
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

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Limitations of Agile

DevOps Tutorial
DevOps Use-Case
Developers committing code
to a shared repository
Developers committing code
to a shared repository

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Local Remote

DevOps Tutorial
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
a shared repository
a shared repository

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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

Introduction to DevOps | Edureka

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