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What are Parameters in Jenkins?
Answer: Parameters are supported by the Agent section and are used to support various
use-cases pipelines. Parameters are defined at the top-level of the pipeline or inside an
individual stage directive.
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How you can set up a Jenkins job?
Answer: Setting up a new job in Jenkins is elaborated below with snapshots:
Step 1: Go to the Jenkins Dashboard and log in with your registered login credentials.
Step 2: Click on the New Item that is shown in the left panel of the page.
Step 3: Click on the Freestyle Project from the given list on the upcoming page and
specify the item name in the text box.
Step 4: Add the URL to the Git Repository.
Step 5: Go to the Build section and click on the Add build step => Execute Windows batch command.
Step 6: Enter the command in the command window
Step 7: After saving all the settings and changes click on Build Now.
Step 8: To see the status of the build click on Console Output.
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Which commands can be used to start Jenkins manually?
Answer: You can use the following commands to start Jenkins manually:
1. (Jenkins_url)/restart: To force restart without waiting for build completion.
2. (Jenkin_url)/safeRestart: Waits until all the build gets completed before
restarting.
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Which command is used to start Jenkins?
Answer: You can follow the below-mentioned steps to start Jenkins:
1. Open Command Prompt
2. From the Command Prompt browse the directory where Jenkins. war resides
3. Run the command given below:
D:\>Java –jar Jenkins.war
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What is Jenkinsfile?
Answer: The text file where all the definitions of pipelines are defined is called Jenkinsfile. It
is being checked in the source control repository.
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Mention some of the important plugins in Jenkins?
Answer: Plugins in Jenkins includes:
ο‚· Gits
ο‚· Maven 2 Project
ο‚· HTML Publisher
ο‚· Copy Artcraft
ο‚· Join
ο‚· Green Balls
ο‚· Amazon EC2
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πŸ“Œ Kubernetes Cloud-based Cluster
πŸ“Œ Kubernetes Basic commands
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πŸ“Œ Kubernetes Ingress & Ingress Controller
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πŸ“Œ Kubernetes pipeline
πŸ“Œ Kubernetes Projects
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What is Jenkins and why use it?
Ans: Jenkins is one of the leading open-source continuous integration tools. The main functionality of this tool is to keep track of the version control system and monitor the build system and provide notifications and reports to alert. It enables you to deliver software by integrating with a large number of testing and deployment technologies.

The following are the reasons to use Jenkins:

It possesses an installer package for major operating systems.

Integrates individual projects for a larger purpose

To keep your team in sync

Troubleshoot and audit past jobs effortlessly

Provides accurate data support for project management
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What is continuous integration?
Ans: Continuous integration is a process of continuously checking the developer’s code into a version control system several times a day and automating the build to check and detect bugs in the written code. Continuous Integration includes the following:

Development and Compilation

Database Integration

Unit Testing

Production Deployment

Code Labeling

Functional Testing

Generating and Analyzing Reports
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What are the features of Jenkins?
Ans: Jenkins comes with the following features:

Free open source.

Easy installation on various operating systems.

Build Pipeline Support.

Workflow Plugin.

Test harness built around JUnit.

Easy upgrades.

Rapid release cycle.

Easy configuration setup.

Excellent community and documentation

Extensible with the use of third-party plugins.
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What are the advantages of using Jenkins?
Ans: The advantages of using Jenkins are the following:

Open-source tool and user-friendly

Easy to install

Provides great collaboration between development and operations teams.

Code deployment is easy and happens in minutes, along with the generation of reports.

Free of cost

Platform independent

Rich plugin ecosystem

Code errors can be detected as early as possible.

Automation of integration work, thereby reducing the number of integration issues.
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What are the prerequisites to use Jenkins?
Ans: We require the following to use Jenkins:

A source code repository that is accessible, for instance, and a Git repository

A working build script. e.g., a Maven Script checked into the repository.
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Name some of the plugins in Jenkin?
Ans: Some of the important plugins in Jenkin includes:

Maven 2 project
Amazon EC2
HTML publisher
Copy Artifact
Join
Green Balls
Git plugin
Multi job plugin
Test Results Analyzer
Metrics