Mohamed-abdalazez / Play.With.Jenkins

Just practice and explore what Jenkins is

Play.With.Jenkins

Note that this repository provides insights to understand what Jenkins is, but it is not intended to be the main resource for anyone.

Table of content

1. Jenkins infrastructure.
2. Installing Jenkins.

Jenkins infrastructure.

• Master server

  • Controls pipelines.
  • Schedules builds.

• Agents

  • perform the build.

• Take a look at this scenario:

  

• The two primary categories of Jenkins agents are:

  • Static Agent.
    • Dedicated machine that is permanently configured to serve as a build agent.
    • It is always online and ready to accept build tasks from the Jenkins master.
  • Dynamic Agent.
    • Machine that is provisioned on-demand to serve as a build agent.
    • Jenkins can dynamically spin up instances (virtual machines or containers) as needed and tear them down once the build is complete.

• In Jenkins, builds can generally be categorized into two primary types:

  • Freestyle Builds.
  • Pipeline Builds.

Freestyle Builds	Pipeline Builds
Overview: 🐧 Traditional and simpler form of builds in Jenkins. 🐧 Configured through the Jenkins web interface using a graphical user interface (GUI).	Overview: 🐧 Defining the entire build and deployment process as code in a Jenkinsfile. 🐧 This approach enables a more flexible, maintainable, and version-controlled method for defining and executing builds.
Configuration: 🐧 Users can define build steps, post-build actions, and configurations through the Jenkins UI without the need for scripting. 🐧 It is a point-and-click approach to configuring and running builds.	Configuration: 🐧 Pipelines are configured using a domain-specific language (DSL) based on Groovy. 🐧 The pipeline script is typically stored alongside the application code in version control (e.g., Git).
Use Cases: 🐧 often used for projects with uncomplicated build and deployment processes.	Use Cases: 🐧 often used for projects with complex build requirements, multiple environments, and the need for version-controlled and shareable build configurations.

Installing Jenkins.

• There are various methods to install Jenkins, as outlined on the official website. However, for this repository, I will be using Docker.

• Docker must be installed beforehand;see here.

• Take a look at the official documentation.

• Check out this Bash script for installing Jenkins.

• After installing it, you should see this page when you visit http://localhost:8080:

  

  • After that, you will see GUI to customize Jenkins. Plugins extend Jenkins with additional features to support many different needs.

  • After Installation, Create the First Admin User.

  • Congratulations!.