Build a CDN.

expected time	requirements
60 minutes	a computer

Goal: Learn how to create a CDN on GCP using Terraform.

Explanation

A CDN (Content Delivery Network) is a service that can cache static content of a website, distributed globally. This service improves security and performance.

\0/     +--- GCP CDN -----+      +--- Your website ---+
 | ---> |                 | ---> |                    |
/ \     +-----------------+      +--------------------+

Howto

We’ll use these resources to setup a CDN:

• google_compute_network
• google_compute_subnetwork
• google_compute_global_address
• google_compute_global_forwarding_rule
• google_compute_target_http_proxy
• google_compute_url_map
• google_compute_backend_service
• google_compute_instance_template
• google_compute_health_check
• google_compute_instance_group_manager
• google_compute_firewall

Demo

See this example repository.

Assignment

• Start with the example repository.
• Add “Hello world” to the index.html.
• Run terraform apply.
• Run ab -n 1024 -c 16 http:// to measure the response times.

Questions

1. Do you see a use-case for this in your environment?