Deploy the full-stack application template with OpenTofu

Stand up a three-tier stack (Nginx web, Python app on port 8080, MariaDB with a Cinder data volume) on a private subnet using the validated OpenTofu template full-stack-app. One floating IP on the web tier exposes HTTP; the app and database tiers stay on private addresses only.

Prerequisites#

You need:

• A Quake AI account with application credentials
• OpenTofu 1.6.0 or later (installation guide)
• OpenStack credentials sourced into the shell (source openrc.sh). See the OpenStack CLI guide.
• An SSH key pair already uploaded to the project. See Add an SSH key.
• A copy of the full-stack-app template from the template reference page
• Enough project quota for three instances at the default flavors, one 50 GB block volume, and one floating IP

Step 1: Configure variables#

Copy terraform.tfvars.example to terraform.tfvars and set:

key_name    = "YOUR_KEY_NAME"
db_password = "CHOOSE_A_STRONG_PASSWORD"

Defaults for flavors, volume size, and network CIDR are documented on the Full-Stack Application reference page.

Step 2: Apply the template#

From the template directory, run:

tofu init
tofu plan
tofu apply

Type yes when prompted. Cloud-init on all three instances can take several more minutes after tofu apply returns.

When the run finishes, note web_floating_ip, app_private_ip, and db_private_ip from the outputs.

Step 3: Verify the web tier reaches the app and database tiers#

Fetch the public endpoint and request the root path:

WEB=$(tofu output -raw web_floating_ip)
curl -s "http://${WEB}/"

When all three tiers are ready, the response body reads:

app tier OK; db says: full-stack-app database tier online

If MariaDB or the app service is still starting, you may see a 503 response. Wait two or three minutes and run the curl command again.

Optional: SSH to the web instance and confirm Nginx forwards to the app tier:

ssh -i YOUR_PRIVATE_KEY_PATH ubuntu@${WEB}
systemctl is-active nginx
grep proxy_pass /etc/nginx/sites-available/default

Next steps#

• Full-Stack Application template
• Three-Tier Application template
• Web applications

Clean up#

Run tofu destroy from the project directory when finished. Type yes to confirm. Verify in the Console that all instances, the data volume, and the floating IP are gone.