Day 25 : Complete Jenkins CI/CD Project - Continued with Documentation

An awesome project to understand automation of nodejs application using webhook integration!

Getting Started

To get a local copy up and running follow these steps.

Prerequisites

• java

sudo apt install openjdk-11-jre
java --version

• nodejs

sudo apt install nodejs
sudo apt install npm
#only for current system
sudo npm install
node app.js

Installation

• Install Docker

• Check docker version using docker — version

• Install Java Development Kit (JDK)

• Set path for the Environmental variable for JDK

• Download and Install Jenkins

• Check the Jenkins version using jenkins — version

• Check if jenkins service is running using systemctl status jenkins

Fork the repository

git fork <github_repo_url>

SSH Keys

ssh-keygen
cd .ssh
ls

SSH server connection with GitHub

• Open GitHub personal account setting

• Select SSH and GPG keys

• Add new ssh-key

Webhook

Webhook in jenkins triggers pipeline automatically when any changes are done in github repo like commit and push.

• Copy jenkins URL

• Go to repo settings in github

• Select Add webhook and paste URL

• Append url with /github-webhook/

Continuous Deployment Using Dockerfile

• Login to Jenkins with credentials say username and password

• Click on new item of freestyle project

• Set description for the project.

• Add GitHub repository Url in GitHub project.

• Add Git in Source code management.

• Set credentials with SSH username and private key.

• Add Build triggers say GitHub hook trigger for GITScm for webhook automation.

• Add Build Steps

docker build . -t <image_tag>
docker run -d --name <container_name> -p <ext_port>:<int_port> <image_tag>

• Save the project.

• Install GitHub integration plugin via manage plugin.

• Test the application via modifying the GitHub repo code.

Using Docker-compose.yaml file

• Uncheck the GitHub trigger

• Modify the docker-compose.yaml file in forked repository or create new one.

• Again check GitHub trigger.

• Add Build steps

docker compose down
docker-compose up --no-deps --build -d

• Save the project.

• Install GitHub integration plugin via manage plugin.

• Test the application via modifying the GitHub repo code.

I'm confident that this article will prove to be valuable, helping you discover new insights and learn something enriching .

thank you : )