Continuous Integration/Continuous Deployment - benhall/express-demo

Continuous Integration/Continuous Deployment (CI/CD) is a method for automating the building, testing, and deployment of applications. It has evolved since the 1990s and is now a common practice in most IT organizations. CI/CD pipelines help to streamline the development process, reduce human error, and improve software quality.

The express-demo project is a simple web application built using Node.js, Express.js, and Handlebars. The following options are available for setting up CI/CD pipelines for this project:

GitHub Actions GitHub Actions is a CI/CD tool built into GitHub that allows you to automate your software workflows. With GitHub Actions, you can create custom CI/CD pipelines for your project using YAML files. Here’s an example of a GitHub Actions workflow file for the express-demo project:

name: Build and Test

on:
push:
branches: [ main ]

jobs:
build-and-test:
runs-on: ubuntu-latest

steps:
- name: Checkout code
uses: actions/checkout@v2

- name: Install dependencies
run: npm install

- name: Run tests
run: npm test

This workflow will trigger on every push to the main branch and will build and test the project using the npm command-line tool.

Source: https://docs.github.com/en/actions

CircleCI CircleCI is a popular CI/CD tool that allows you to automate your software development workflows. With CircleCI, you can create custom pipelines for your project using YAML files. Here’s an example of a CircleCI configuration file for the express-demo project:

version: 2.1

jobs:
build-and-test:
docker:
- image: circleci/node:latest

steps:
- checkout
- run: npm install
- run: npm test

This configuration file will build and test the project using the CircleCI Node.js Docker image.

Source: https://circleci.com/docs/2.0/configuration-reference/

Jenkins Jenkins is a popular open-source CI/CD tool that allows you to automate your software development workflows. With Jenkins, you can create custom pipelines for your project using a domain-specific language (DSL). Here’s an example of a Jenkinsfile for the express-demo project:

pipeline {
agent any

stages {
stage('Build and Test') {
steps {
sh 'npm install'
sh 'npm test'
}
}
}
}

This Jenkinsfile will build and test the project using the npm command-line tool.

Source: https://www.jenkins.io/doc/tutorials/build-a-java-app-with-maven/

Docker Docker is a popular containerization platform that allows you to automate the deployment of your applications. With Docker, you can create custom Docker images for your project and deploy them to any platform that supports Docker. Here’s an example of a Dockerfile for the express-demo project:

FROM node:14

WORKDIR /app

COPY package*.json ./

RUN npm install

COPY . .

EXPOSE 3000

CMD [ "npm", "start" ]

This Dockerfile will create a Docker image for the express-demo project that can be deployed to any platform that supports Docker.

Source: https://docs.docker.com/engine/reference/builder/

In conclusion, there are several options available for setting up CI/CD pipelines for the express-demo project. The choice of tool will depend on your specific requirements and preferences. GitHub Actions, CircleCI, Jenkins, and Docker are all popular and well-documented tools that can help you automate your software development workflows.

Sources: