#1 What is DevOps ,Agile and CICD

Summary

In this educational video, Piyush Sachteva introduces Agile CI/CD and DevOps, explaining their roles in modern software development. He contrasts traditional siloed development with Agile's emphasis on collaboration and flexibility, and DevOps' integration of operations and production. The video delves into Continuous Integration (CI), Continuous Delivery (CD), and Continuous Deployment, illustrating their functions in the software lifecycle. It also highlights the benefits of these practices, such as early bug detection, cost savings, and improved team coordination. The tutorial series is aimed at Jenkins beginners, showcasing how Jenkins automates the CI/CD pipeline, from code commit to production deployment, with real-world examples and tools like Maven, Selenium, and Ansible.

Takeaways

• 😀 Agile, CI/CD, and DevOps are modern methodologies that improve collaboration and efficiency in software development.
• 🛠️ Traditional software development faced issues like siloed teams, lack of transparency, and delayed changes due to management bottlenecks.
• 🔄 Agile emphasizes collaboration, flexibility, and shorter development cycles through sprints and daily scrum meetings.
• 🤝 DevOps extends Agile principles into operations and production, aiming to automate and monitor the development cycle to remove bottlenecks.
• 🔧 Continuous Integration (CI) involves frequent and automatic integration and testing of code changes.
• 🚀 Continuous Delivery (CD) ensures that code is always ready for deployment, with manual approval required before production deployment.
• 🌟 Continuous Deployment automates the deployment of validated changes to production without manual intervention.
• 🔍 Jenkins is a widely used CI/CD server that supports automation of the software development lifecycle through pipelines.
• 🌐 CloudBees partners with the Jenkins community for development and maintenance, contributing significantly to the project.
• 🔑 The Jenkins workflow automates build, test, and deployment processes, providing continuous feedback and monitoring throughout the SDLC.

Q & A

What are the three modern software development methodologies introduced in the video?

The three modern software development methodologies introduced in the video are Agile, CI/CD, and DevOps.

How does the traditional software development life cycle differ from the modern approaches like Agile, CI/CD, and DevOps?

In the traditional software development life cycle, teams like development, QA, and operations often work in silos with limited visibility and coordination, leading to delays and bottlenecks. Modern approaches like Agile emphasize collaboration and flexibility, CI/CD focuses on frequent integration and automated testing, and DevOps integrates development and operations for continuous improvement and faster deployment.

What are the key issues with the traditional software development life cycle as described in the video?

The key issues with the traditional software development life cycle include time-consuming processes, lack of coordination between teams, lack of transparency, management bottlenecks, and the overall cumbersome nature of the process.

What does the term 'Agile' refer to in the context of software development?

In the context of software development, 'Agile' refers to a methodology that emphasizes collaboration, flexibility, and shorter development cycles. It involves planning and completing work in sprints with frequent meetings and adapts to changes more readily.

What is the difference between Continuous Integration (CI) and Continuous Delivery (CD)?

Continuous Integration (CI) involves frequent and automatic integration of code, where new and modified code is automatically tested with the master code. Continuous Delivery (CD) is an extension of CI, ensuring that code is always ready to be deployed, although manual approval is required before the software is deployed to production.

How does Continuous Deployment differ from Continuous Delivery?

Continuous Deployment automatically deploys all validated changes to the production environment without any manual intervention, whereas Continuous Delivery still requires manual approval before deploying the code to production.

What role does Jenkins play in the CI/CD process as described in the video?

Jenkins plays a central role in the CI/CD process by automating the building, testing, and deployment of code. It triggers builds, runs tests, reports results, and can automate the deployment process using pipelines.

What is the significance of CloudBees' relationship with the Jenkins community as mentioned in the video?

CloudBees partners with the Jenkins community for development and maintenance tasks, contributing significantly to the project. They coordinate with the community on releases and contribute fixes back, which helps in the advancement and support of the Jenkins tool.

How does the video describe the process of a feature development in a Jenkins workflow?

The video describes the process of feature development in a Jenkins workflow as starting with multiple developers committing code to a version control system, then merging to a deployment branch. Jenkins triggers a build and runs tests, reports results, and if tests pass, the build is scanned for vulnerabilities and static code analysis. The build is then uploaded to a repository and deployed to lower environments, eventually reaching production either through continuous deployment or with manual approval in continuous delivery.

What are the benefits of implementing CI/CD as highlighted in the video?

The benefits of implementing CI/CD include early detection of bugs and problems, cost and effort savings, improved coordination between teams, faster releases, automated testing for quality assurance, and reduced chances of manual errors due to automation.