---
title: "Apply and verify | Grafana Labs"
description: "Learn how to apply your confirmed plan and deploy your alerting pipeline to Grafana."
---

> For a curated documentation index, see [llms.txt](/llms.txt). For the complete documentation index, see [llms-full.txt](/llms-full.txt).

# Apply and verify

With the plan confirmed, you can now apply it to deploy your alerting pipeline to Grafana.

To deploy and verify your alerting pipeline, complete the following steps:

1. Run `terraform apply`:
   
   Bash ![Copy code to clipboard](/media/images/icons/icon-copy-small-2.svg) Copy
   
   ```bash
   terraform apply
   ```
2. Terraform displays the plan again and asks for confirmation. Type `yes` and press Enter:
   
   ![Copy code to clipboard](/media/images/icons/icon-copy-small-2.svg) Copy
   
   ```none
   Do you want to perform these actions?
     Terraform will perform the actions described above.
     Only 'yes' will be accepted to approve.
   
     Enter a value: yes
   ```
3. Wait for Terraform to complete. You should see:
   
   ![Copy code to clipboard](/media/images/icons/icon-copy-small-2.svg) Copy
   
   ```none
   Apply complete! Resources: 4 added, 0 changed, 0 destroyed.
   ```
4. Open your Grafana instance in a browser and navigate to **Alerting > Alert rules** in the left-side menu.
5. Look for the **Terraform Alerts** folder. Click into it.
6. Confirm the **CPU alerts** rule group appears with the **High CPU usage** rule.
7. Navigate to **Alerting > Contact points** and confirm **Email alerts** appears.
8. Navigate to **Alerting > Notification policies** and confirm the default route points to your contact point.

## Updating a deployed alert rule

When you modify your HCL and run `terraform apply` again, Terraform detects the change and updates the existing resources in place. No duplicates, no manual intervention.

Bash ![Copy code to clipboard](/media/images/icons/icon-copy-small-2.svg) Copy

```bash
# After modifying alerts.tf:
terraform plan    # Preview the update
terraform apply   # Apply the update
```

## What Terraform state tracks

Terraform stores the deployed resource IDs in its state file (`terraform.tfstate`). This is how it knows whether to create or update a resource on subsequent runs. Keep the state file safe. If you lose it, Terraform won’t know about existing resources.

Your alerting pipeline is now deployed and managed by Terraform.