Learn CI/CD with Jenkins

Documenting the learning journey. Took the reference from a course and added my own enhancements and experiments.

Reference Course: DevOps Project - CI/CD with Jenkins Ansible Docker Kubernetes

Once completed, once a code commit is pushed to Github, Jenkins is triggered to build a Java webapp using Maven. Jenkins job uses Ansible to create a new tomcat container image and pushes it to Dockerhub. In the end, this is deployed on AWS EKS cluster and becomes accessible via a LoadBalancer. This uses 3 EC2 instances and 1 EKS cluster.

1. Setup Jenkins, Maven, Tomcat in 2 VMs. Let Jenkins build a Java project w Github code. Deploy on Tomcat in VM

2. Create a Docker image and deploy tomcat as a container. Automate CD using Docker

3. Using Ansible, push the new image to Dockerhub and deploy a container

4. Create EKS cluster. Deploy as k8s Deployment and expose via LoadBalancer to access

5. Full CI/CD