CI/CD Pipeline for Java Application 🚀

An end-to-end automated Continuous Integration and Continuous Deployment (CI/CD) pipeline built for a Java Spring Boot application, leveraging industry-standard DevOps tools.

🛠️ Tech Stack & Tools

• Version Control: Git & GitHub
• CI/CD Orchestrator: Jenkins (Declarative Pipeline)
• Build Tool: Apache Maven
• Code Quality Analysis: SonarQube
• Artifact Repository: Sonatype Nexus
• Containerization: Docker & Docker Hub
• Orchestration & Deployment: Kubernetes (Minikube)
• Application Framework: Spring Boot (Java 17)

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🏗️ Pipeline Architecture

The pipeline executes the following 6 sequential stages on every code push:

1. Checkout Code: Pulls the latest source code from the main GitHub branch.
2. Build & Unit Test: Compiles the project and runs unit tests using Maven (mvn clean test).
3. Code Quality Analysis: Performs static code analysis using SonarQube to check for code health.
4. Publish Artifact to Nexus: Packages the application and deploys the release artifact to Sonatype Nexus.
5. Build & Push Docker Image: Builds an optimized Docker image of the Spring Boot application and pushes it to Docker Hub.
6. Deploy to Kubernetes: Dynamically updates the Kubernetes deployment manifest with the build tag and deploys the application directly into a local Minikube cluster using kubectl.

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📷 Pipeline Execution & Proof of Success

1. Jenkins Successful Build (Finished: SUCCESS)

The automated pipeline running through Jenkins, successfully clearing all stages including workspace cleanup and Kubernetes deployment.

2. SonarQube Code Quality Analysis

Static code analysis profile configured with best-practice quality gates (Sonar way).

3. Sonatype Nexus Repository Dashboard

Artifact management tracking deployed components and repository health.

4. Docker Hub Repository Tags

Public container registry repository showing the successfully pushed image tags.

5. Kubernetes Pods & Services

Minikube terminal output confirming the deployment and active services running inside the cluster.

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📂 Project Structure

├── .vscode/               # Workspace configurations
├── k8s/                   # Kubernetes deployment and service manifests
│   └── deployment.yaml
├── Screenshots/           # Pipeline execution visual proof
├── src/                   # Spring Boot application source code
├── Dockerfile             # Container configuration for the Spring Boot app
├── Jenkinsfile            # Jenkins Declarative Pipeline definition
└── pom.xml                # Maven project configuration