Deploying a Logic App with Terraform

Hello there, tech enthusiasts! Today, we'll walk through an exciting demo project that showcases how to deploy an Azure Logic App using Terraform. This post will guide you step-by-step, and soon you'll have your Logic App up and running effortlessly.

Why Use Terraform?

Terraform is an excellent tool for managing cloud infrastructure using code. It enables you to define your infrastructure in configuration files, making deployment repeatable and consistent. By using Terraform, you can:

Automate infrastructure provisioning

Version control your infrastructure

Easily roll back to previous states

Project Overview

In this demo, we'll deploy a Logic App that automates a workflow using Azure services. We'll use Terraform to define our resources and configurations. Here's a high-level overview of the steps we'll cover:

1. Set up the Azure Resource Group
2. Define the Logic App workflow
3. Deploy the Logic App using Terraform

Prerequisites

Before we dive in, make sure you have the following:

An Azure subscription

Terraform installed on your machine

Basic knowledge of Terraform and Azure

Step-by-Step Guide

1. Set up the Azure Resource Group

First, we'll create a resource group where our Logic App will be deployed. Here's the Terraform configuration for creating the resource group:

resource "azurerm_resource_group" "example" {
  name     = "example-resources"
  location = "East US"
}        

2. Define the Logic App Workflow

Next, we'll define the Logic App workflow. This involves specifying the workflow schema, version, and tags. Here's a snippet of the Terraform configuration for the Logic App:

resource "azurerm_logic_app_workflow" "logicapp" {
  name                = "logicapp-Consumption-demo-test-02"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name
  
  identity {
    type         = "UserAssigned"
    identity_ids = [azurerm_user_assigned_identity.umi.id]
  }
}        

3. Deploy the Logic App Using Terraform

Finally, we'll use Terraform to deploy the Logic App. We'll define the deployment resource and specify the parameters for our Logic App:

resource "azurerm_resource_group_template_deployment" "logic_app_deployment" {
  resource_group_name = azurerm_resource_group.example.name
  deployment_mode     = "Incremental"
  name                = azurerm_logic_app_workflow.logicapp.name

  template_content = file("../LogicApp/logicapp-Consumption-demo-test-02/workflow.json")

  parameters_content = jsonencode({
    "logic_app_name" = {
      value = azurerm_logic_app_workflow.logicapp.name
    }
    "location" = {
      value = azurerm_resource_group.example.location
    }
  })
  depends_on = [azurerm_logic_app_workflow.logicapp]
}        

you can use below code instead of direct file path :

#?data?"local_file"?"logic_app"?{

#???filename?=?".${path.module}/tf-deploy/workflow.json"

#?}

Conclusion

And that's it! You've successfully deployed a Logic App using Terraform. This demo project is a great starting point for automating your Azure infrastructure with Terraform. Feel free to explore and expand upon this setup to suit your needs.

Happy coding!