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Polyglot CI/CD Platform

A universal CI/CD platform for polyglot microservices leveraging Jenkins, GitHub Actions, and Tekton to automate builds, tests, and deployments across multiple languages and frameworks.

Supports Java, Node.js, and Python microservices with seamless integration to AWS EKS & ECR.

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Key Features

• Multi-Language Support: Java, Node.js, Python.
• CI/CD Automation: Jenkins pipelines, GitHub Actions workflows, Tekton pipelines.
• Containerization: Docker images for all services.
• Cloud Native Deployment: Kubernetes manifests for EKS deployment.
• Scalable & Modular: Microservices architecture ready for production.
• Infrastructure as Code: Kubernetes manifests and deployment automation.
• Observability Ready: Integrates with CloudWatch, Prometheus, and other monitoring tools.

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Project Structure

Polyglot-CICD-Platform/
├── .github/workflows/        # GitHub Actions CI/CD pipelines
├── k8s/                      # Kubernetes manifests for EKS deployment
├── scripts/                  # Utility scripts for automation
├── services/                 # Microservice directories
│   ├── java-app/
│   ├── node-app/
│   └── python-app/
├── tekton/                   # Tekton pipeline definitions
├── Dockerfile                # Sample Dockerfiles for multi-service builds
├── Jenkinsfile               # Jenkins pipeline configuration
├── Makefile                  # Build and deployment shortcuts
├── README.md                 # Documentation
└── LICENSE

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Prerequisites

• Docker (v20+)
• kubectl (v1.25+)
• AWS CLI (v2)
• Eksctl (v0.214+)
• Tekton CLI (tkn)
• Maven (for Java service)
• Node.js & npm (for Node service)
• Python 3.x & pip (for Python service)

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CI/CD Pipelines

1. GitHub Actions

• Workflow: .github/workflows/ci-cd-multi-microservice.yml

• Triggered on push or pull request to main branch.

• Steps:

  1. Checkout code
  2. Configure AWS credentials
  3. Build Docker images per service
  4. Push images to AWS ECR
  5. Deploy to EKS using kubectl apply

2. Jenkins

• Pipeline defined in Jenkinsfile.
• Supports parallel builds for all microservices.
• Deploys images to AWS ECR and updates Kubernetes manifests.

3. Tekton

• Tekton pipelines located in tekton/.
• Modular and declarative CI/CD tasks.
• Compatible with Tekton Hub resources for shared tasks.

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Build & Deploy Locally

Java App

cd services/java-app
mvn clean package
docker build -t java-app:latest .

Node.js App

cd services/node-app
npm install
npm test
docker build -t node-app:latest .

Python App

cd services/python-app
pip install -r requirements.txt
docker build -t python-app:latest .

Deploy to Kubernetes

kubectl apply -f k8s/java-app-deployment.yaml
kubectl apply -f k8s/node-app-deployment.yaml
kubectl apply -f k8s/python-app-deployment.yaml
kubectl apply -f k8s/multi-app-ingress.yaml

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AWS Integration

• ECR: Stores Docker images per microservice.
• EKS: Hosts microservices using Kubernetes.
• CloudWatch / Prometheus: Observability for apps & cluster.

ECR URIs Example:

java-app: 676509179952.dkr.ecr.ap-south-1.amazonaws.com/java-app
node-app: 676509179952.dkr.ecr.ap-south-1.amazonaws.com/node-app
python-app: 676509179952.dkr.ecr.ap-south-1.amazonaws.com/python-app

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Tekton CLI Commands

• tkn pipeline list — List available pipelines
• tkn pipelinerun start <pipeline> — Run a pipeline
• tkn task list — List available tasks
• tkn taskrun describe <taskrun> — Inspect a task run

Configure tkn as a kubectl plugin for seamless CLI integration.

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Screenshots

AWS EKS

AWS ECR

GitHub Actions

Java App Running

Node App Running

Python App Running

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Maintenance & Cleanup

Delete Kubernetes Resources

kubectl delete deployment java-app node-app python-app
kubectl delete service java-app-service node-app-service python-app-service
kubectl delete ingress multi-app-ingress

Delete AWS ECR Images

aws ecr batch-delete-image --repository-name java-app --image-ids imageTag=latest
aws ecr batch-delete-image --repository-name node-app --image-ids imageTag=latest
aws ecr batch-delete-image --repository-name python-app --image-ids imageTag=latest

Delete EKS Cluster & Nodegroups

aws eks delete-nodegroup --cluster-name polyci-cluster --nodegroup-name <nodegroup>
aws eks wait nodegroup-deleted --cluster-name polyci-cluster --nodegroup-name <nodegroup>
aws eks delete-cluster --name polyci-cluster

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References

• AWS EKS Documentation
• AWS ECR Documentation
• Tekton Pipelines
• Kubernetes Documentation

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License

Apache-2.0 © 2025 Debasish-87

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