Plugin manager usage in Jenkins - Mini Project: Build & Apply

Plugin manager usage

📖 Scenario: You are setting up a Jenkins server for your team. To add new features, you need to manage Jenkins plugins using the Plugin Manager.

🎯 Goal: Learn how to list installed plugins, install a new plugin, and verify the installation using Jenkins Plugin Manager commands.

📋 What You'll Learn

Use Jenkins CLI commands to interact with the Plugin Manager

List currently installed plugins

Install a specific plugin by name

Verify the plugin installation

💡 Why This Matters

🌍 Real World

Managing Jenkins plugins is essential for adding new features and integrations to your CI/CD pipelines.

💼 Career

Knowing how to use Jenkins Plugin Manager commands is a key skill for DevOps engineers and system administrators managing Jenkins servers.

1

List installed plugins

Use the Jenkins CLI command java -jar jenkins-cli.jar -s http://localhost:8080 list-plugins to list all currently installed plugins.

Jenkins

# Run the command to list installed plugins
# Your code here

Need a hint?

This command connects to your Jenkins server and shows all plugins installed.

2

Install a new plugin

Use the Jenkins CLI command java -jar jenkins-cli.jar -s http://localhost:8080 install-plugin git to install the git plugin.

Jenkins

java -jar jenkins-cli.jar -s http://localhost:8080 list-plugins
# Run the command to install the git plugin
# Your code here

Need a hint?

This command installs the git plugin on your Jenkins server.

3

Restart Jenkins to apply changes

Use the Jenkins CLI command java -jar jenkins-cli.jar -s http://localhost:8080 safe-restart to safely restart Jenkins and apply the plugin installation.

Jenkins

java -jar jenkins-cli.jar -s http://localhost:8080 list-plugins
java -jar jenkins-cli.jar -s http://localhost:8080 install-plugin git
# Run the command to safely restart Jenkins
# Your code here

Need a hint?

Restart Jenkins safely so the new plugin is loaded without interrupting running jobs.

4

Verify the git plugin installation

Run java -jar jenkins-cli.jar -s http://localhost:8080 list-plugins | grep git to check if the git plugin is installed and active.

Jenkins

java -jar jenkins-cli.jar -s http://localhost:8080 list-plugins
java -jar jenkins-cli.jar -s http://localhost:8080 install-plugin git
java -jar jenkins-cli.jar -s http://localhost:8080 safe-restart
# Run the command to verify git plugin installation
# Your code here

Need a hint?

This command filters the plugin list to show only the git plugin, confirming it is installed.