How to Create a Parameterized Jenkins Pipeline that Accepts User Input?| S-Logix

How to Create a Parameterized Jenkins Pipeline that Accepts User Input and Prints Customized Output During the Build?

Condition for Create a Parameterized Jenkins Pipeline that Accepts User Input and Prints Customized Output During the Build

Description:
This task helps you to create a Parameterized Jenkins Pipeline. When running the job, Jenkins will display fields asking for user input (name and environment). After submitting, the pipeline will print the message:
```
➡ Hello , deploying to 
```
This activity teaches how to use parameters in a Jenkins Pipeline to make builds dynamic and customizable.

Steps

Step 1 — Create a New Jenkins Pipeline Job
✔ Description: Start by creating a pipeline job that will use parameters.
Click New Item
Enter item name: parameterized-pipeline-job
Select Pipeline
Click OK
Step 2 — Enable Build Parameters
✔ Description: Allow the job to receive input before execution.
Scroll and find This build is parameterized
Check the box ✔

Step 3 — Add Build Parameters
✔ Description: Add input fields to collect data from users.

Add String Parameter
Click Add Parameter → String Parameter
Fill these fields:

Field	Value
Name	USERNAME
Default Value	Guest
Description	Enter your name

Add Choice Parameter
Click Add Parameter → Choice Parameter
Fill fields:

Field	Value
Name	ENV
Choices	dev qa prod
Description	Select environment

Step 4 — Add the Pipeline Script
✔ Description: Use a pipeline script that prints entered values.
Paste this script in Pipeline → Definition → Pipeline Script:

pipeline {
    agent any
    parameters {
        string(name: 'USERNAME', defaultValue: 'Guest', description: 'Enter your name')
        choice(name: 'ENV', choices: ['dev', 'qa', 'prod'], description: 'Select environment')
    }
    stages {
        stage('Print') {
            steps {
                echo "Hello ${USERNAME}, deploying to ${ENV}"
            }
        }
    }
}

Step 5 — Save the Pipeline
Description: Save your configuration.
Click Save
Step 6 — Build the Pipeline with Parameters
Description: Run the pipeline and enter the requested values.
Click Build with Parameters
Enter a name (Example: Raj)
Select ENV as dev / qa / prod
Click Build
Step 7 — View the Console Output
Description: Validate the results.
Go to Build #1 → Console Output
Expected Output:
```
Hello Raj, deploying to dev
```