This repository contains code for a basic Node.js server setup along with Kubernetes deployment configurations and a CI/CD workflow.
The index.js file sets up a simple Node.js server using the http module. It listens on a specified port and responds with a "Hello, World!" message upon receiving a request.
The Dockerfile facilitates the Docker image creation process for the Node.js application. It defines the necessary setup, dependencies installation, and exposes the specified port for communication.
The deployment.yaml file contains Kubernetes configurations:
- Deployment: Specifies the setup for running multiple replicas of the application.
- Horizontal Pod Autoscaler: Automates scaling based on CPU utilization to maintain optimal performance.
- Service: Defines a service to expose the application, enabling external access via a Load Balancer.
This workflow automates deployment to Kubernetes:
- Notifications: Sends Telegram notifications on deployment start, success, or failure.
- Deployment Steps:
- Checks out the code and sets up Google Cloud SDK.
- Configures Docker CLI, builds, and pushes the Docker image to Google Container Registry.
- Installs and configures
kubectlfor Kubernetes cluster access. - Deploys the application to Kubernetes using the configurations from
deployment.yaml.
The CI/CD workflow triggers on pushes to the main branch and consists of three main stages:
- Send Notification - Started: Notifies the start of the deployment process.
- Deploy: Executes the deployment process to Kubernetes, building and pushing the Docker image, and applying Kubernetes configurations.
- Send Notification - Successful/Failure: Sends notifications based on the deployment result, informing about the success or failure status.
This setup provides a foundational structure for deploying a Node.js application to Kubernetes using Docker containers and automating the process through a CI/CD workflow.
Feel free to modify and expand upon this template as needed for your specific project requirements.