JenKins CICD Pipeline

1. Create a large EC2 t2.large instance with 2CPU 8GB RAM

2. Git clone the repository

3. Install Java, a pre requisite for Jenkins

4. Run the jenkins install script

5. Jenkins run HTTP on port 8080

6. Configure inbound traffic rules in your EC2 instance to allow inbound traffic to the instance

7. Cat /var/lib/jenkins/secrets/initialAdminPassword in your terminal to get the password

8. After installling the necessary plugins and finish you will reach the Jenkins Dashboard

9. Select New item to create Jenkins Pipeline and select Pipeline

10. Select pipeline script from SCM. We are using Git as our Source Code Manager for this project. The repository URL is https://github.com/bharatrajtj/jenkins

11. Script path is the path directory where the Jenkins file is located within the repository. The jenkinsfile and can be located in any path and jenkins file can be named as you wanted.

12. Go to Manage Jenkins > Plugins> Available plugins, search and install docker pipeline plugin to run docker as agents

13. Go to Manage Jenkins > Plugins> Available plugins, search and install SonarQube Scanner for code quality inspection

14. Add new user named SonarQube in the EC2 instance and switch to the new user

15. Download the sonar zip file wget https://binaries.sonarsource.com/Distribution/sonarqube/sonarqube-9.4.0.54424.zip

16. Install apt install unzip to unzip your zip file in the root user

17. Switch to sonarqube user and run unzip *

18. Grant permission to the folders

19. Go to path depending upon your instance architecture

20. Run ./sonar.sh start to execute your SonarQube server

21. SonarQube will run at port 9000, configure inbound rules to allow traffic from port 9000

22. Enter ec2 IP address:9000 in browser to reach sonarqube server page. Default user name and password for Sonar Qube is admin

23. In SonarQube page go to myAccount>Security and generate a token

24. In Jenkins Page go to ManageJenkins>Credentials>System>GlobalCredentials>AddCredentials

25. Install Docker in root user

26. Grant Jenkins and Ubuntu user permission to access docker daemon and restart docker

27. Restart Jenkins to make sure the plugins installed will function properly. To restart jenkins after port number enter /restart

28. Running Minikube on my windows local machine through docker container in powershell

29. Installing ArgoCD operator to manage life cycle of Kubernetes controller – ArgoCD in minikube https://operatorhub.io/operator/argocd-operator-helm

30. Configure dockerhub and GIThub credentials to Jenkins

31. For GitHub go to Settings—personal access tokens—Generate New token (classic) and create the token

32. In Jenkins use secret text kind for github credential and restart Jenkins once credentials are created

33. Modified sonarqube IP address, docker repository and Github repository values in the source code and commit changes

34. Build the Jenkins Pipeline

35. SonarQube report for code analysis

36. Docker registry where the image generated has been pushed

37. Update the docker image name in the deployment yml

38. Create a yml file in your local machine and apply this content to install ArgoCD controller

39. Make sure the argocd operator pods are created

40. Edit the service type from Cluster IP to NodePort for example-argocd-server

41. Get URL to access the service through web

42. Get the password to argocd account by getting into argocd-cluster secret

43. Decode your base 64 encrypted secret

44. Enter the credentials in ArgoCD web interface

45. Create application in argocd and configure required information

46. The spring boot application has been deployed in our minikube cluster through argocd

47. Edited the deployment image to nginx in the minikube

48. ArgoCD recognize that the image in manifest yml is different from the image executing on minikube cluster it starts to rollback to image mentioned in the manifest