• Introduction
• Step 1 : Develop multi-module project
• Step 2 : Setup Jenkins & SonarQube server
• Step 3 : Create Jenkins pipeline
• Step 4 : ArgoCD Setup

This project, demonstrates how to build an automated CI/CD pipeline using Jenkins and ArgoCD for a Spring Boot project. It covers setting up Jenkins for CI, containerizing the app with Docker, and using ArgoCD for automated deployment to Kubernetes.

• Docker or Docker alternative - Colima
• Minikube
• Helm
• kubectl
• IDE and JDK-21

• Start Docker.
• Build Docker image. (cd into the exchangerates project directory.)

   docker build -t exchangerates .
  

• Run exchangerates project container

   docker run -p 8080:8080 exchangerates
  

• Docker compose command to run the Jenkins and SonarQube server (cd into the cicd/ci directory.)

   sudo docker-compose up -d 
  

• Get jenkins password

   docker exec -it jenkins bash
  

   cat /var/jenkins_home/secrets/initialAdminPassword
  

• Plugins to install in Jenkins : SonarQube scanner, pipeline-stage-view, Docker Pipeline, Pipeline Utility Steps
• Start Minikube command:

  minikube start --driver=docker
  

• Create Helm chart (cd into exchangerates project directory.)

  helm create k8chart
  

• Install helm chart:

  helm install demochart k8chart
  

• ArgoCD chart install : Refer recent ArgoCD document here

  kubectl create namespace argocd
  kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml
  

• Port forwarding for ArgoCD service

  kubectl port-forward svc/argocd-server -n argocd 8091:443
  

• Get Admin password for ArgoCD:

  kubectl get secret argocd-initial-admin-secret -n argocd -o jsonpath="{.data.password}" | base64 --decode
  

• Command to generate secret yaml config for dockerhub secret:

   kubectl create secret docker-registry dockerhub-secret \
   --docker-username=YOUR-USERNAME \
   --docker-password=YOUR-DOCKERHUB-SECRET-TOKEN \
   --docker-email=YOUR-DOCKERHUB_EMAIL-ID \
   --namespace app \
   --dry-run=client -o yaml
  

• Create app namespace for exchangerates project:

  kubectl create namespace app
  

• Apply the secrets from command line (cd into cicd/cd directory.):
  • Docker hub secret:

    kubectl apply -f dockerhub-token.yaml
    

  • Github secret:

    kubectl apply -f github-token.yaml
    

• Deploy application.yaml for ArgoCD project deployment.

  kubectl apply -f application.yaml
  

• Get application

  kubectl get applications -n argocd
  

• Mock API website link here.

{
  "base": "USD",
  "rates": {
    "AED": 3.6725,
    "JPY": 153.232404,
    "USD": 1,
    "INR": 84.109224
  },
  "last_updated": "2025-03-09T14:37:43.515+00:00"
}