Go Hello World CI/CD Pipeline

This project demonstrates a complete CI/CD pipeline for a simple Go application that prints "Hello World". The pipeline includes Docker containerization, Kubernetes deployment, and GitHub Actions for automated building and deployment.

Project Structure

• src/main.go: A simple Go application that prints "Hello World"
• src/main_test.go: code to test the Go application.
• Dockerfile: Instructions for building a Docker image of the Go application
• kubernetes/:
  • deployment.yaml: Kubernetes Deployment configuration
  • service.yaml: Kubernetes Service configuration
• scripts/:
  • build.sh: Shell script to build the Docker image
  • deploy.sh: Shell script to deploy to Kubernetes
• .github/workflows/ci-cd.yml: GitHub Actions workflow for CI/CD

Prerequisites

• Docker Desktop (for local Docker engine and Kubernetes cluster)
• Go programming language
• kubectl CLI
• GitHub account
• DockerHub account

Local Development

1. Build the Docker image: ./scripts/build.sh

2. Push the docker image to docker hub.

3. Deploy to local Kubernetes cluster: ./scripts/deploy.sh

CI/CD Pipeline

The project uses GitHub Actions for continuous integration and deployment. The workflow consists of two main jobs:

1. Build and Push: Builds the Docker image and pushes it to DockerHub.
2. Deploy: Deploys the application to the local Kubernetes cluster using a self-hosted runner.

To use this pipeline:

1. Set up a self-hosted runner on your local machine.
2. Configure DockerHub credentials as GitHub secrets.
3. Push changes to the main branch to trigger the workflow.

Configuration

• Update the DockerHub repository in GitHub Actions workflow.
• Modify Kubernetes configurations in kubernetes/ as needed.
• Adjust GitHub Actions workflow in .github/workflows/ci-cd.yml for your specific requirement.