Complete CICD setup with Live Demo | #devops #jenkins| Write CICD with less code| @TrainWithShubham
Summary
TLDRIn this informative video, Abhishek demonstrates how to create a simplified CI/CD pipeline using Jenkins for continuous integration and Argo CD for continuous delivery. He emphasizes the ease of setup with minimal coding, showcasing a live demo of updating a to-do application and automating its deployment to a Kubernetes cluster. The tutorial is designed to be accessible, even for those new to CI/CD, and highlights the future of Jenkins pipelines with Kubernetes architecture.
Takeaways
- 😀 The video is a tutorial on setting up a CI/CD pipeline using Jenkins for continuous integration and Argo CD for continuous delivery.
- 🔧 The presenter, Abhishek, simplifies the process by minimizing the use of Groovy scripting and focusing on a streamlined approach to writing the pipeline.
- 📝 The tools used in the tutorial are Argo CD for deployment on Kubernetes and Jenkins for building and pushing Docker images to a repository.
- 🚀 The video emphasizes the future-proof nature of using Kubernetes architecture and GitOps tools like Argo CD for modern CI/CD practices.
- 🔄 Abhishek demonstrates updating a to-do application, showcasing the pipeline's ability to reflect changes quickly with minimal manual intervention.
- 💻 The tutorial includes a live demo of modifying the application's code, triggering the Jenkins pipeline, and deploying the update via Argo CD.
- 🔑 The video explains the importance of using a Jenkinsfile in a GitHub repository for version control and traceability of changes.
- 📖 The presenter provides a step-by-step guide on writing the Jenkinsfile and configuring Argo CD, suitable for viewers with little to no prior experience.
- 🔍 Abhishek mentions the advantages of Argo CD, including its user-friendly UI for non-technical users and its ability to automatically sync and heal configurations.
- 📚 The tutorial also covers best practices like separating code and artifact repositories for better management and security.
- 🌟 The video concludes with an invitation for viewers to provide feedback and suggests further exploration of Argo CD through previous videos on the channel.
Q & A
What is the main focus of Abhishek's video?
-The main focus of Abhishek's video is to explain how to write and execute a complete CI/CD pipeline using Jenkins for continuous integration and Argo CD for continuous delivery.
Why did Abhishek choose Argo CD for the demonstration?
-Abhishek chose Argo CD because it is a tool based on the principles of GitOps, designed specifically for deployment on Kubernetes, and it requires minimal coding for configuration, making it user-friendly.
What is the advantage of using a separate repository for Kubernetes manifests in a CI/CD pipeline?
-Using a separate repository for Kubernetes manifests helps in implementing good principles of GitOps, keeping the artifacts unique and more secure, and allows for better management of infrastructure configurations.
What does Abhishek suggest for triggering the Jenkins pipeline automatically?
-Abhishek suggests using a webhook from GitHub to trigger the Jenkins pipeline automatically, but due to his firewall settings, he demonstrates manually triggering the build using the 'Build Now' button.
How does Abhishek demonstrate the end-to-end CI/CD pipeline?
-Abhishek demonstrates the end-to-end CI/CD pipeline by making a live code change in a to-do application, committing the change, and showing how the Jenkins pipeline builds a new Docker image and updates the Kubernetes manifest, which Argo CD then deploys to the Kubernetes cluster.
What is the significance of the Jenkinsfile in a Jenkins pipeline?
-The Jenkinsfile is significant as it contains the definition of the pipeline's stages and steps, and it allows for version control and tracking of changes, making it easier to manage and audit the pipeline configuration.
What is the purpose of the 'checkout' stage in a Jenkins pipeline?
-The 'checkout' stage in a Jenkins pipeline is used to pull the latest changes from the source code repository, ensuring that the pipeline works with the most recent version of the code.
How does Argo CD handle the deployment of new changes in a Kubernetes cluster?
-Argo CD continuously watches the specified GitHub repository for any changes in the Kubernetes manifests. When it detects a change, it automatically syncs the new configuration to the Kubernetes cluster, ensuring the deployment is up-to-date.
What is the role of the 'build Docker' stage in the Jenkins pipeline demonstrated by Abhishek?
-The 'build Docker' stage in the Jenkins pipeline is responsible for creating a new Docker image for the application changes, tagging it with the build number, and pushing the image to a centralized Docker repository.
How does Abhishek propose to simplify the process of writing a Jenkins pipeline?
-Abhishek proposes using the declarative pipeline syntax in Jenkins, which is simpler and more standardized, and provides a pipeline syntax generator that can create the necessary script based on user input, reducing the need for extensive knowledge of Groovy scripting.
What are the benefits of using declarative pipelines in Jenkins according to Abhishek?
-Declarative pipelines in Jenkins offer a standard structure that is easy to understand and maintain, allows for easy searching of examples and solutions online, and promotes a consistent pipeline structure across an organization.
What is the main difference between declarative and scripted pipelines in Jenkins?
-The main difference is that declarative pipelines provide a standardized and simpler structure, while scripted pipelines offer more flexibility and customization at the cost of being more complex and harder to maintain.
What does Abhishek recommend for those who are new to Argo CD?
-Abhishek recommends filling out the Argo CD form to set up the tool, which simplifies the process and requires minimal prior experience with Argo CD.
How can viewers access and use the to-do application demonstrated in the video?
-Viewers can access and use the to-do application through the provided GitHub URL, where they can also follow Abhishek's GitHub account for updates and use the application for their own demo or practice purposes.
What is the purpose of the 'update kubernetes manifest' stage in the Jenkins pipeline?
-The purpose of this stage is to update the Kubernetes deployment manifest in the separate artifact repository with the new Docker image tag after the image has been built and pushed to Docker Hub.
What does Abhishek plan to do to help viewers who might have missed some details in the video?
-Abhishek plans to update the README.md file with the details of the CI/CD end-to-end process explained in the video, so viewers can refer to it for a step-by-step guide.
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