Describe the process of delivering software using Jenkins.

The process of delivering software using Jenkins typically includes the following steps:

1. Configuring the code repository — Jenkins integrates with version control systems (e.g., Git).
2. Creating a Jenkins Pipeline or Job — describes the sequence of build, test, and deploy stages.
3. Building the project — Jenkins runs the build, compile, or package of the application.
4. Automated testing — unit tests, integration tests are performed to check quality.
5. Building artifacts — executable files, packages, or containers are created.
6. Deploying to test/production environments — Jenkins automatically deploys the software to the required servers or cloud.
7. Monitoring and notifications — notifications are sent to the team upon errors or successful completion.

Example of a simple Jenkinsfile for CI/CD:

pipeline {
    agent any
    stages {
        stage('Checkout') {
            steps {
                git 'https://github.com/example/repo.git'
            }
        }
        stage('Build') {
            steps {
                sh './build.sh'
            }
        }
        stage('Test') {
            steps {
                sh './run_tests.sh'
            }
        }
        stage('Deploy') {
            steps {
                sh './deploy.sh'
            }
        }
    }
    post {
        success {
            echo 'Build and deployment succeeded'
        }
        failure {
            echo 'Build or deployment failed'
        }
    }
}