jenkins docker agents demo

Project Overview

I've created a comprehensive sample Java project that demonstrates Jenkins Docker agents implementation across multiple real-time scenarios using a Spring Boot banking application. This project mirrors enterprise-level CI/CD practices with various pipeline strategies and agent configurations.

Key Features Demonstrated

Real-Time Scenarios

1

Multi-Branch Pipeline Strategy

• Main branch: Production-ready deployments with comprehensive testing

• Feature branches: Quick validation and feedback loops

• Hotfix branches: Expedited pipelines for critical fixes

• Release branches: Comprehensive validation and staging

2

Specialized Docker Agents

• Maven Agent: Java compilation and testing with Maven cache

• Node.js Agent: Frontend builds and JavaScript testing

• Security Agent: OWASP scans, Trivy, and dependency checks

• Database Agent: Integration testing with containerized databases

• Performance Agent: JMeter load testing

3

Parallel Execution Patterns

• Unit tests, integration tests, and security scans run simultaneously

• Multi-technology builds (Java backend, Node.js frontend, Python scripts)

• Quality gates with SonarQube integration

• Container vulnerability scanning

Enterprise-Grade Pipeline Features

Security Integration

• OWASP dependency scanning

• Container security with Trivy

• Static code analysis with SonarQube

• License compliance checking

Deployment Strategies

• Blue-green deployments for production

• Rolling updates for staging

• Immediate deployment for hotfixes

• Environment-specific configurations

Monitoring and Observability

• Prometheus metrics collection

• Grafana dashboards

• Health check endpoints

• Performance monitoring

Files Generated

• Main Project Documentation - Complete project structure with Spring Boot banking application, including entities, controllers, services, and comprehensive test suites. jenkins-pipelines.md Generated File

• Advanced Pipeline Examples - Four specialized Jenkinsfiles:

  • Feature branch pipeline for rapid feedback

  • Hotfix pipeline with expedited workflows

  • Release pipeline with comprehensive testing

  • Multi-stage pipeline with technology-specific agents

• Setup and Configuration - Complete setup script and configuration files including Docker agents, Kubernetes manifests, monitoring setup, and documentation.

Implementation Highlights

Docker Agent Architecture

• Dynamic agent provisioning where containers are created on-demand based on build requirements

• Agents spin up for specific tasks

• Resource optimization through ephemeral containers

• Specialized environments for different technologies

• Clean separation of concerns

Pipeline Optimization

• Feature pipelines: Fast feedback with essential tests only

• Hotfix pipelines: Critical path validation with approval gates

• Release pipelines: Comprehensive validation with performance testing

• Multi-stage pipelines: Technology-specific agents for parallel execution

Real-World Integration

• Multiple environment configurations (dev, staging, prod)

• Infrastructure as Code with Kubernetes

• Comprehensive monitoring and alerting

• Security scanning and compliance checks

• Performance testing and validation

Getting Started

Prerequisites: Docker, Docker Compose, Git

1

Prerequisites

Ensure you have Docker, Docker Compose, and Git installed.

2

Setup

Run the setup script:

Setup script

3

Access

Open Jenkins at: http://localhost:8081

4

Configure

Create a multibranch pipeline pointing to your repository.

5

Test

Create feature branches to trigger different pipeline scenarios.

This demo provides a solid foundation for understanding and implementing Jenkins Docker agents in real-time enterprise environments, covering multiple scenarios that development teams encounter in production.