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CI/CD Pipeline Implementation using Git, Jenkins, Ansible, Docker, and Kubernetes on AWS

Sulesh PK - PeerSpot reviewer
Sulesh PK
Monitoring and Operations Pilot at Egis S.A.

Project Description

Objective:

To automate the building, testing, deployment, and orchestration of a containerized application using DevOps tools on AWS infrastructure.

Tools & Technologies Used:

  • Version Control: Git (GitHub)

  • CI/CD Server: Jenkins

  • Configuration Management: Ansible

  • Containerization: Docker

  • Orchestration: Kubernetes (Amazon EKS)

  • Cloud Platform: Amazon Web Services (AWS)

  • Infrastructure Provisioning: Terraform (optional, for IaC)

Architecture Overview:

  1. GitHub – Source code repository. Developers push code changes here.

  2. Jenkins – Detects changes in GitHub, builds Docker images, and triggers Ansible playbooks.

  3. Docker – Builds and stores container images.

  4. Ansible – Automates deployment tasks (e.g., provisioning EC2, installing dependencies).

  5. Kubernetes (EKS) – Orchestrates containers and ensures high availability and scalability.

  6. AWS Services – EC2, S3, IAM, EKS, ECR, VPC, etc.

Pipeline Workflow:

  1. Code Commit: Developer pushes code to GitHub repository.

  2. Build Trigger: Jenkins polls GitHub and triggers a build on code changes.

  3. Docker Build: Jenkins builds a Docker image and pushes it to AWS ECR.

  4. Provisioning: Ansible automates infrastructure tasks like deploying to EC2 or preparing Kubernetes cluster.

  5. Kubernetes Deployment: Jenkins triggers kubectl commands or Helm charts to deploy the container to Amazon EKS.

  6. Monitoring & Feedback: Kubernetes provides health checks and logging. Jenkins provides build/test feedback.

Key Features:

  • Fully automated CI/CD pipeline

  • Containerized applications for consistency and portability

  • Scalable and resilient deployments using Kubernetes

  • Infrastructure automation with Ansible

  • Seamless code integration and rapid deployment cycles

Challenges Encountered:

  • Configuring IAM roles and security groups correctly on AWS

  • Ensuring Jenkins has proper permissions to interact with AWS services

  • Managing Kubernetes access and RBAC policies

Outcome:

Successfully implemented an end-to-end CI/CD pipeline that enables automated, scalable, and reliable deployments for microservices-based applications on AWS.