Ecosyste.ms: Awesome

An open API service indexing awesome lists of open source software.

Awesome Lists | Featured Topics | Projects

https://github.com/adarsh-k27r/microservice-k8s

Containerization of a Node Microservice using Docker engine and further deployment/Orchestration using Google Kubernetes Engine (GKE).
https://github.com/adarsh-k27r/microservice-k8s

auto-scaling containerization dockerfile gcp gke kubectl kubernetes load-balancer manifest-files microservice minikube nodejs nodeport pods replicas yaml

Last synced: 9 days ago
JSON representation

Containerization of a Node Microservice using Docker engine and further deployment/Orchestration using Google Kubernetes Engine (GKE).

Awesome Lists containing this project

README

        

# Containerization of a Web Microservice using Docker and Kubernetes Orchestration

## Introduction

Containerized `Node microservice` using `Docker` and then deployed it on `Google Kubernetes Engine` using the provided manifest files. This setup includes configurations for Pods, Deployments, and Services **(NodePort and LoadBalancer)**.

## Table of Contents

- [Prerequisites](#prerequisites)
- [Manifests](#manifests)
- [Deployment Instructions](#deployment-instructions)
- [Accessing the Application](#accessing-the-application)
- [Health Checks](#health-checks)
- [Clean Up](#clean-up)
- [Contact](#contact)
- [Project Status](#project-status)
- [Contributing](#contributing)
- [License](#license)

## Prerequisites

- Kubernetes cluster
- `kubectl` configured to interact with your cluster

## Manifests

- **Pod Manifest**
- Single instance of the application
- Container specification with image and ports
- Liveness and readiness probes for health checks

- **Deployment Manifest**
- Replica sets for high availability and scalability
- Rolling updates strategy
- Resource requests and limits
- Liveness and readiness probes

- **NodePort Service Manifest**
- Exposes service on a static port across all nodes
- Access via `:`

- **LoadBalancer Service Manifest**
- External load balancer creation
- Cloud provider-specific (e.g., AWS, GCP, Azure)
- Access via external IP provided by the load balancer

## Deployment Instructions

1. Apply the manifests:

```sh
kubectl apply -f pod.yaml
kubectl apply -f deployment.yaml
kubectl apply -f svc_np.yaml
kubectl apply -f svc_lb.yaml
```

2. Verify deployments and services:
```sh
kubectl get pods
kubectl get deployments
kubectl get services
```

## Accessing the Application

- **NodePort**
- Access the application using `:`
- Example: `http://:30001`

- **LoadBalancer**
- Access the application using the external IP assigned by the load balancer
- Example: `http://:4000`

## Health Checks

- **Liveness Probe**: `/healthz`
- **Readiness Probe**: `/readiness`
- Ensures the application is running and ready to serve traffic

## Clean Up

1. Delete the resources:

```sh
kubectl delete -f pod.yaml
kubectl delete -f deployment.yaml
kubectl delete -f svc_np.yaml
kubectl delete -f svc_lb.yaml
```

## Contact

**Adarsh Kumar** @ [[email protected]](mailto:[email protected])

## Project Status

Completed ✌️

### Alert

Due to high incurring charges for Google Kubernetes Engine service at Google Cloud, The Web page has been taken down. However, I have provided the link to Docker image of the API.

## Contributing

Pull requests are welcome. For major changes, please open an issue first
to discuss what you would like to change.

## License

Distributed under the [MIT](https://choosealicense.com/licenses/mit/) License. See `LICENSE` for more information.