Jenkins-NodeJs-do-app-cicd

Prerequisites:

1. Jenkins Server: Ensure you have Jenkins installed and running. If not, you can install Jenkins following the official documentation.
2. Docker: Make sure Docker is installed on the Jenkins server, as we’ll be using Docker commands in the pipeline.

Steps:

1. Fork and Clone the Repository

• Fork the To-do-app-cicd repository to your GitHub account.
• Clone the forked repository to your local machine.

2. Create Jenkins Pipeline

• In Jenkins, go to “New Item” to create a new Pipeline.
• Enter a name for your pipeline (e.g., “TodoAppPipeline”) and select “Pipeline” as the type.
• Click “OK” to create the pipeline.

3. Configure Pipeline Script

• In the pipeline configuration, scroll down to the “Pipeline” section.
• Select “Pipeline script” as the Definition.
• Copy and paste the following script into the Script box:

pipeline {
    agent any

    stages {
        stage('Clone Repository') {
            steps {
                git 'https://github.com/your-username/To-do-app-cicd.git'
            }
        }
        stage('Build Docker Image') {
            steps {
                script {
                    docker.build('todo-app', '-f Dockerfile .')
                }
            }
        }
        stage('Deploy to Jenkins') {
            steps {
                script {
                    docker.image('todo-app').withRun('-p 8080:8080 --name todo-app') { c ->
                        echo "App running on http://localhost:8080/"
                    }
                }
            }
        }
    }
    post {
        success {
            echo 'Pipeline succeeded!'
        }
        failure {
            echo 'Pipeline failed :('
        }
    }
}

4. Save and Apply Changes

• Save the pipeline script.
• Click “Apply” and then “Save” to save the pipeline configuration.

5. Run the Pipeline

• Go back to the Jenkins dashboard and find your newly created pipeline.
• Click “Build Now” to run the pipeline.
• Jenkins will clone the repository, build the Docker image using the Dockerfile in the repository, and deploy the application to Jenkins itself.

6. Access the Deployed Application

• Once the pipeline completes successfully, you can access the deployed application on Jenkins.
• Open a web browser and navigate to http://jenkins-server-ip:8080 to see the deployed Node.js Todo App

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