Introduction and Setup of Jenkins

History of Jenkins? Why Jenkins? Jenkins Use Cases

Learning Outcome

3

why DevOps engineer should learn Jenkins

2

Definition of Jenkins

1

Need of Jenkins and what is  Jenkins 

4

Where Jenkins fit in DevOps Ci/Cd 

Is Manual Build, Test, and Deployment Practical?

Watches the code for changes

Automatically builds the project

Runs all types of tests

Deploys to environments

Sends instant feedback

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02

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WE Want Something which does followings:- 

This is where

Jenkins

 comes in.

This is where

Jenkins

 comes in.

This is where

Jenkins

 comes in.

Jenkins converts DevOps & CI/CD concepts into reality

This is where

Jenkins

 comes in.

Jenkins converts DevOps & CI/CD concepts into reality

It is the engine that runs the entire automation pipeline

This is where

Jenkins

 comes in.

Jenkins converts DevOps & CI/CD concepts into reality

It is the engine that runs the entire automation pipeline

It enables continuous integration, continuous testing, and continuous delivery

This is where

Jenkins

 comes in.

Jenkins converts DevOps & CI/CD concepts into reality

It is the engine that runs the entire automation pipeline

It enables continuous integration, continuous testing, and continuous delivery

In Simple words:

This is where

Jenkins

 comes in.

Jenkins converts DevOps & CI/CD concepts into reality

It is the engine that runs the entire automation pipeline

It enables continuous integration, continuous testing, and continuous delivery

In Simple words:
DevOps = philosophy
CI/CD = process
Jenkins = the tool that makes it actually happen

Jenkins

Jenkins = Automation Server for DevOps

Key Characteristics of Jenkins

Now the Question is 

 Why the DevOps Engineer
Must Learn Jenkins

In a DevOps Pipeline, Jenkins can

  • Automatically trigger pipelines on every code commit

  • Build applications consistently across environments

  • Execute automated validation stages (unit, API, UI, performance) as quality gates

  • Schedule pipeline executions (nightly jobs, regression pipelines, maintenance tasks)

  • Generate pipeline dashboards and execution reports

  • Deploy applications to multiple environments (Dev, QA, Staging, Production)

  • Provide real-time feedback to teams

  • Integrate with the DevOps ecosystem (Git, Docker, Kubernetes, Jira, Slack, SonarQube)

Real Benefits in a DevOps Culture

  • Faster and more reliable software delivery

  • Early detection of issues within the pipeline

  • Standardized and repeatable automation processes

  • Improved collaboration between Development, QA, and Operations teams

  • Better visibility and traceability across builds and deployments

  • Strong foundation for scalable CI/CD practices

In a DevOps Pipeline, Jenkins can

Build Automation

Fetches code

Compiles & packages

Run All Tests

Unit tests

API tests

Selenium UI tests

Performance/load tests

Notify Team

Emails, Slack, Teams

Detect Code Changes

Watches GitHub/GitLab/Bitbucket

Triggers pipeline automatically

Deploy Application

Dev / QA / UAT / Staging/ Prod

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Where Jenkins Fits in CI/CD Pipeline

Jenkins Automates the Full CI/CD Lifecycle

In a DevOps CI/CD pipeline, what is the primary role of Jenkins?

B. To act as a source code repository

A.To manually execute test cases and generate defect reports

C.To automate and orchestrate build,test,and deployment pipelines

D. To replace all DevOps tools with a single platform

Let's Wrap Up

Quiz

In a DevOps CI/CD pipeline, what is the primary role of Jenkins?

B. To act as a source code repository

A.To manually execute test cases and generate defect reports

C.To automate and orchestrate build,test,and deployment pipelines

D. To replace all DevOps tools with a single platform

Quiz-Answer