Jenkins introduction and installation

4 min readNov 30, 2023

Introduction of jenkins

jnkins is an open-source automation server commonly used for building, deploying, and automating projects. It facilitates the continuous integration and continuous delivery (CI/CD) processes, helping software development teams automate various aspects of their workflows. Jenkins is written in Java and provides a web-based graphical user interface for managing and configuring automation tasks.

Here are some key features and concepts associated with Jenkins:

Continuous Integration(CI):

Jenkins supports the practice of continuous integration, where developers integrate their code changes into a shared repository multiple times a day. Jenkins automates the process of building and testing the integrated code, allowing teams to detect and address issues early in the development cycle.

Plugins:

Jenkins is highly extensible and supports a vast ecosystem of plugins. These plugins enhance Jenkins’ functionality, enabling integration with various tools, version control systems, build systems, and more. Users can install plugins to customize and extend Jenkins based on their specific requirements.

Pipeline: Jenkins Pipeline is a suite of plugins that supports the automation and modeling of complex workflows. Pipelines are defined as code, allowing teams to version control and manage their build and deployment processes as part of their application codebase. This is known as “Pipeline as Code.”

Job:

In Jenkins, a job is a single task or unit of work. It can represent different activities such as building a project, running tests, deploying an application, or any other automated task. Jobs are the fundamental building blocks of Jenkins automation.

Nodes and Executors:

Jenkins operates on a master-slave architecture. The master node manages the overall system and coordinates the distribution of tasks to slave nodes. Executors are responsible for running the tasks on nodes. Each node can have one or more executors, allowing parallel execution of jobs.

Freestyle Project:

This is the traditional and straightforward way of creating projects in Jenkins. Users can configure build steps, post-build actions, and other parameters through a web-based interface.

SCM Integration:

Jenkins integrates with various source code management (SCM) systems such as Git, Subversion, Mercurial, and others. This integration allows Jenkins to automatically trigger builds when code changes are pushed to the repository.

Security:

Jenkins provides features for securing access to its functionalities. Users can define roles and permissions to control who can perform specific actions within Jenkins.

Community and Support:

Being open source, Jenkins has a large and active community. Users can find a wealth of documentation, tutorials, and support from the community. Jenkins also has a wide range of plugins developed and maintained by the community.

Overall, Jenkins is a powerful and flexible tool that plays a crucial role in modern software development processes, enabling teams to achieve automation, collaboration, and efficiency in their workflows.

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Jenkins installation

Connect to Your EC2 Instance:

Use SSH to connect to your EC2 instance. Replace your-key.pem and your-ec2-instance-ip with your actual key file and EC2 instance IP.

Update Package Lists: