Kritika Shaw
Project-1 DevOps Project

Project-1 DevOps Project

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Kritika Shaw
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4 min read

Day 80 of #90daysofdevops

Hey Techies! Welcome to this blog

In this blog, we are going to start with DevOps Project.

Project Description

The project aims to automate the building, testing, and deployment process of a web application using Jenkins and GitHub. The Jenkins pipeline will be triggered automatically by GitHub webhook integration when changes are made to the code repository. The pipeline will include stages such as building, testing, and deploying the application, with notifications and alerts for failed builds or deployments.

Prerequisites

First of all, go to the AWS portal, and create a new instance.

Install Jenkins and Docker & Docker-compose on the instance.

Step 1: Set Up EC2 Instance

  • Access the EC2 console and create a new EC2 instance.

    Step 2: Install Jenkins on AWS EC2 Ubuntu Instance

    Install from Jenkins on Ubuntu

    • Install Java by executing the following command:

          sudo apt install openjdk-11-jdk -y

    • Add the Jenkins Repository:

      • Import the GPG key:

            curl -fsSL https://pkg.jenkins.io/debian-stable/jenkins.io-2023.key | sudo tee /usr/share/keyrings/jenkins-keyring.asc > /dev/null

      • Add the Jenkins software repository:

  •     echo deb [signed-by=/usr/share/keyrings/jenkins-keyring.asc] https://pkg.jenkins.io/debian-stable binary/ | sudo tee /etc/apt/sources.list.d/jenkins.list > /dev/null

  • Install Jenkins:

    • Update the system repository:

          sudo apt update -y

    • Install Jenkins:

          sudo apt install jenkins -y

    • Verify the installation by checking Jenkins status:

          sudo systemctl status jenkins

Step 3: Install Docker on EC2 Instance

  • Install Docker using the command:

        sudo apt-get install docker.io -y

  • Verify Docker installation and check the version:

        sudo systemctl status docker
    docker --version

  • Add your user and Jenkins user to the Docker group:

        sudo usermod -a -G docker $USER
    sudo usermod -a -G docker jenkins
    sudo chown $USER /var/run/docker.sock

Step 4: Generate SSH Keys

  • Generate SSH keys for Jenkins-Git integration using the command:
  ssh-keygen

Step 5: Configure Jenkins and EC2 for Port 8080

  • Allow traffic on port 8080 in the instance’s security group.

  • Configure the instance’s firewall to allow traffic on port 8080.

Step 6: Jenkins Setup

  • Access Jenkins dashboard at instance-public-IP/8080.

Step 7: Create Freestyle Project

  • In Jenkins dashboard, click on 'New Item.'

Name the project, select "Freestyle project" as the type.

Configure the project, including source code management (GitHub URL) and credentials.

  • Add the private key generated using ssh-keygen.

  • In build steps, select 'Execute shell' and run Docker commands.

  • Save to create a Jenkins job.

  • Click on "Build Now" to execute the job.

The GitHub project repository is established on an EC2 instance through a Jenkins job.

Following this, a Jenkins pipeline is employed to produce a Docker image and container.

To access the result, simply browse the public IP address with port number 5000.

Step 8: GitHub Webhook Integration

  • Configure GitHub:

    • Go to GitHub account settings.

  • Add the public key generated by ssh-keygen to SSH and GPG keys.

Set up GitHub webhook:

In your GitHub repository, go to Settings > Webhooks > Add webhook.

Enter Jenkins environment URL with "/github-webhook/" at the end.

Select 'application/json' as the content type.

Step 9: Install GitHub Integration Plugin in Jenkins

  • Open Jenkins dashboard.

    • Go to Manage Jenkins > Manage Plugins.

    • Install the GitHub Integration plugin.

Step 10: Configure Jenkins for GitHub Integration

  • In build triggers, select 'GitHub hook trigger for GITScm polling.'

  • Make changes to the code to trigger the pipeline.

The built has been automatically triggered

But it wasn't successful as there is error generated because of the new container name being the same.

Let's modify the settings of the configuration.

Step 11: Access Jenkins Pipeline

  • Browse the public IP address with port number 8000 to view the Jenkins pipeline

Thank you so much for taking the time to read till the end! Hope you found this blog informative and helpful.

Feel free to explore more of my content, and don't hesitate to reach out if need any assistance from me or in case of you have any questions.

Happy Learning!

~kritika :)

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