Using Startup Scripts on Google Compute Engine

Hands-On Lab

 

Photo of Matthew Ulasien

Matthew Ulasien

Team Lead Google Cloud in Content

Length

00:30:00

Difficulty

Beginner

In this hands-on lab, we will practice using startup scripts to create customized Compute Engine instances. We will use both a direct insert and cloud storage-supplied methods.

What are Hands-On Labs?

Hands-On Labs are scenario-based learning environments where learners can practice without consequences. Don't compromise a system or waste money on expensive downloads. Practice real-world skills without the real-world risk, no assembly required.

Using Startup Scripts on Google Compute Engine

Introduction

In this hands-on lab, we will practice using startup scripts to create customized Compute Engine instances. We will use both a direct insert and cloud storage-supplied methods.

Solution

Begin by logging in to the GCP Console using the credentials provided on the hands-on lab page.

Be sure to launch your lab in an incognito window (or other private browsing mode) in order to avoid issues with cached logins.

Create a Compute Engine instance using direct input startup script

  1. Go to top-left menu > Compute Engine

  2. Click Create

    • Make sure you are using a default Debian instance (should be default)
    • Under Firewall, place a check in Allow HTTP traffic
    • Expand the Management sub-menu
    • Under Automation > Startup script box, copy and paste the following commands:
    apt update
    apt install -y apache2
    cat <<EOF > /var/www/html/index.html
    <html><body>
    <h2>Welcome to your custom website.</h2>
    <h3>Created with a direct input startup script!</h3>
    </body></html>
    EOF
  3. Click Create

After the instance is up, give it an additional minute as it is updating the repositories, installing Apache, and editing the Apache index file in the background. Click on the external IP address and you should be presented with your custom website.

Create a Compute Engine instance and link to a Cloud Storage object for startup script

  1. Click CREATE INSTANCE
    • Make sure you are using a default Debian instance (should be default)
    • Under Firewall, place a check in Allow HTTP traffic
    • Expand the Management sub-menu
    • Under Automation > Metadata, add the following key/value pair in the respective boxes:
    • key: startup-script-url
    • value: gs://gcp-course-exercise-scripts/startup-script.sh
    • Click Create

After the instance is up, give it an additional minute as it is updating the repositories, installing Apache, and editing the Apache index file in the background. Click on the external IP address and you should be presented with your custom website.

Conclusion

Congratulations, you've completed this hands-on lab!