Jenkins WAR file execution - Mini Project: Build & Apply

Jenkins WAR File Execution

📖 Scenario: You want to run Jenkins on your local machine using the Jenkins WAR file. This is a common way to start Jenkins without installing it as a service. You will learn how to download the WAR file, set a port configuration, run Jenkins, and verify it is running.

🎯 Goal: Learn to execute the Jenkins WAR file with a custom port and confirm Jenkins is running by checking the output.

📋 What You'll Learn

Have Java installed on your machine

Download the Jenkins WAR file

Run Jenkins WAR file on a specified port

Verify Jenkins startup output

💡 Why This Matters

🌍 Real World

Running Jenkins from the WAR file is a quick way to start Jenkins without full installation. It is useful for testing or temporary setups.

💼 Career

Understanding how to run Jenkins WAR files helps DevOps engineers manage Jenkins servers and automate CI/CD pipelines efficiently.

1

Download the Jenkins WAR file

Create a variable called jenkins_war_url and set it to the exact string "https://get.jenkins.io/war-stable/latest/jenkins.war".

Jenkins

# Create a variable called jenkins_war_url with the Jenkins WAR download URL
# Your code here

Need a hint?

Use a string variable to store the exact Jenkins WAR file URL.

2

Set the Jenkins server port

Create a variable called jenkins_port and set it to the integer 8080 to specify the port Jenkins will run on.

Jenkins

jenkins_war_url = "https://get.jenkins.io/war-stable/latest/jenkins.war"
# Create a variable called jenkins_port and set it to 8080
# Your code here

Need a hint?

Use an integer variable to hold the port number 8080.

3

Run the Jenkins WAR file with the port configuration

Write a command string called run_command that uses java -jar jenkins.war --httpPort=8080 to run Jenkins on the port stored in jenkins_port. Use an f-string to insert the port number.

Jenkins

jenkins_war_url = "https://get.jenkins.io/war-stable/latest/jenkins.war"
jenkins_port = 8080
# Create a run_command string to run Jenkins WAR on the port using java -jar
# Your code here

Need a hint?

Use an f-string to insert the port number variable into the command string.

4

Print the Jenkins run command

Write a print statement to display the exact run_command string.

Jenkins

jenkins_war_url = "https://get.jenkins.io/war-stable/latest/jenkins.war"
jenkins_port = 8080
run_command = f"java -jar jenkins.war --httpPort={jenkins_port}"
# Print the run_command string
# Your code here

Need a hint?

Use print(run_command) to show the command that runs Jenkins.