CI/CD

Jenkins

Jenkins is one of the classic CI/CD tools and is still widely used in many companies. It is powerful and flexible, especially for self-hosted environments and enterprise customization.

CI/CDPipelinesSelf-Hosted

Key Concepts

Pipelines can be defined as code using Jenkinsfiles.

Agents execute jobs on distributed infrastructure.

Plugins extend Jenkins to integrate with many systems.

Stages and steps define pipeline workflow.

Common Interview Questions

What is Jenkins used for?

What is a Jenkins pipeline?

What are the advantages of pipeline as code?

Use Case

Use Jenkins when you need highly customizable self-hosted pipeline automation.

Common Use Cases

Running self-hosted build pipelines.

Integrating with internal enterprise systems.

Executing complex CI/CD workflows with custom agents.

Pros

Very flexible and widely used in enterprise environments.

Large plugin ecosystem.

Good fit for custom on-prem or hybrid workflows.

Cons

UI and operational model can feel outdated.

Plugin sprawl can cause maintenance pain.

Requires active maintenance and hardening.