Deploying a web application to an Azure Web App (Azure App Service) using Terraform and the AzureRM provider involves several steps. Below, I’ll provide an overview of the process and share a basic Terraform configuration to get you started. Keep in mind that you’ll need to adapt this configuration to your specific project and requirements.

Here’s a high-level overview of the steps:

1. Initialize Terraform: Initialize your Terraform project by running the terraform init command in your project directory. This command downloads the necessary provider plugins.

2. Define Your Azure Resources: Create a Terraform configuration file (usually with a .tf extension) where you define the Azure resources you need, including the Azure Web App, resource group, and any other necessary resources. Here’s a simplified example:

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   provider "azurerm" { features {} } resource "azurerm_resource_group" "example" { name = "example-resources" location = "East US" } resource "azurerm_app_service_plan" "example" { name = "example-appserviceplan" location = azurerm_resource_group.example.location resource_group_name = azurerm_resource_group.example.name sku { tier = "Standard" size = "S1" } } resource "azurerm_webapp" "example" { name = "example-webapp" location = azurerm_resource_group.example.location resource_group_name = azurerm_resource_group.example.name app_service_plan_id = azurerm_app_service_plan.example.id }

3. Run Terraform Commands:

   • Run terraform plan to preview the changes that Terraform will make.
   • Run terraform apply to apply the changes and create the Azure resources.

4. Deployment:

   • After the Azure Web App is created, you can deploy your web application code to it. This can be done using various methods, such as Git deployment, Azure DevOps pipelines, or FTP.

5. Access Your Web App: Once deployed, you can access your web application via the URL provided by Azure for your Web App.

6. Clean Up:

   • When you no longer need the Azure resources, you can use terraform destroy to remove them. Be cautious with this command, as it will delete the resources, and data loss may occur.

Remember to customize the configuration to match your specific needs. You can also use Terraform variables and input files to make your configuration more flexible and maintainable.

Please note that the above example is a simplified configuration. In a real-world scenario, you might need to configure additional settings, such as custom domains, SSL certificates, application settings, and deployment slots. Azure offers various deployment options, so choose the one that best fits your project’s requirements. Additionally, ensure that you have the necessary Azure credentials and permissions to create and manage resources.