#Jenkins?

-Jenkins is an open-source continuous integration/continuous delivery and deployment (CI/CD) automation software DevOps tool written in the Java programming language. -It is used to implement CI/CD workflows, called pipelines. -As a Continuous Integration tool, Jenkins allows seamless, ongoing development, testing, and deployment of newly created code. -Continuous Integration is a process wherein developers commit changes to source code from a shared repository, and all the changes to the source code are built continuously.

#task

1. What you understood in Jenkin, write a small article in your own words

-Jenkins is an open-source automation tool written in Java with plugins built for continuous integration.

-Jenkins is used to building and test your software projects continuously making it easier for developers to integrate changes to the project, and making it easier for users to obtain a fresh build

-It also allows you to continuously deliver your software by integrating with a large number of testing and deployment technologies.

-It is used to implement CI/CD workflows, called pipelines.

-As a Continuous Integration tool, Jenkins allows seamless, ongoing development, testing, and deployment of newly created code.
-Continuous Integration is a process wherein developers commit changes to source code from a shared repository, and all the changes to the source code are built continuously.

1. Create a freestyle pipeline to print "Hello World!!

   i)Install Jenkins

   • Install the latest LTS version: brew install jenkins-lts

   • Install a specific LTS version: brew install jenkins-lts@YOUR_VERSION

   • Start the Jenkins service: brew services start jenkins-lts

   • Restart the Jenkins service: brew services restart jenkins-lts

   • Update the Jenkins version: brew upgrade jenkins-lts-

i). -brew install jenkins-lts

-launchctl

-brew services start jenkins-lts

ii). For jenkins used port 8080 which is the default port of Jenkins, browse instance-public-IP/8080 it will open Jenkins dashboard.

iii). Click on the "New Item" button on the left sidebar

iv). Give your project a name, such as "demo-pipeline" and select "Freestyle project" as the project type.

v). In the configuration section, scroll down to the "Build" section and add an "Execute shell" build step.

vi). In the command field, enter the command to print "Hello World", such as echo "Hello World!!".

vii). Click on the "Save" button at the bottom of the page to create the project.

viii). Once the project is created, click on the "Build Now" link to run the project.

ix). Check the console output for the "Hello World" message.

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