Plugin update management in Jenkins - Mini Project: Build & Apply

Plugin update management

📖 Scenario: You are a Jenkins administrator responsible for managing plugin updates to keep the Jenkins server secure and stable.Plugins add extra features to Jenkins, but they need to be updated regularly to fix bugs and add improvements.

🎯 Goal: Learn how to list installed Jenkins plugins, check for available updates, and apply those updates using Jenkins CLI commands.

📋 What You'll Learn

Use Jenkins CLI commands to list plugins

Check for plugin updates

Update plugins using Jenkins CLI

Verify plugin update status

💡 Why This Matters

🌍 Real World

Jenkins administrators regularly update plugins to keep the CI/CD environment secure and stable.

💼 Career

Knowing how to manage Jenkins plugins is essential for DevOps engineers and system administrators maintaining Jenkins servers.

1

List installed Jenkins plugins

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

Jenkins

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

Need a hint?

Make sure Jenkins CLI jar file is downloaded and accessible.

Use the exact command with list-plugins option.

2

Check for available plugin updates

Use the Jenkins CLI command java -jar jenkins-cli.jar -s http://localhost:8080 list-plugins -v to get verbose details on installed plugins to check which have updates available by reviewing versions.

Jenkins

java -jar jenkins-cli.jar -s http://localhost:8080 list-plugins
# Add the option to check for plugin updates
# Your code here

Need a hint?

The -v flag shows detailed plugin information including versions and status.

3

Update a specific Jenkins plugin

Use the Jenkins CLI command java -jar jenkins-cli.jar -s http://localhost:8080 install-plugin <plugin-name> -deploy to update a specific plugin. Replace <plugin-name> with the exact plugin ID you want to update.

Jenkins

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

Need a hint?

Use the exact plugin ID like git to update that plugin.

The -deploy flag applies the update immediately.

4

Verify plugin update status

Use the Jenkins CLI command java -jar jenkins-cli.jar -s http://localhost:8080 list-plugins | grep git to verify the 'git' plugin version after update.

Jenkins

java -jar jenkins-cli.jar -s http://localhost:8080 install-plugin git -deploy
# Run the command to check the 'git' plugin version
# Your code here

Need a hint?

Use grep to filter the plugin list for 'git' plugin details.