Appdynamics Terraform Provider | Monitoring As Code

Introduction

The AppDynamics Terraform Provider allows users to manage AppDynamics resources using Terraform, enabling a streamlined and automated approach to infrastructure as code. With this provider, you can create, update, and delete AppDynamics entities such as applications, tiers, and nodes directly from your Terraform scripts.

Prerequisites

Before you begin, ensure that you have the following:

A valid AppDynamics account with appropriate permissions.
Terraform installed on your machine (version 0.12 or newer).
The AppDynamics Terraform Provider plugin installed.

Installation

To use the AppDynamics Terraform Provider, you need to configure it in your Terraform scripts. Here's how you can do that:

1. Create a new directory for your Terraform configuration.

2. Create a file named main.tf.

3. Add the following block to configure the provider:

provider "appdynamics" {
  account_name = "YOUR_ACCOUNT_NAME"
  access_key  = "YOUR_ACCESS_KEY"
  controller_url = "https://YOUR_CONTROLLER_URL"
}

Replace YOUR_ACCOUNT_NAME, YOUR_ACCESS_KEY, and YOUR_CONTROLLER_URL with your actual AppDynamics account details.

Creating an Application

To create an application in AppDynamics using Terraform, use the following resource block in your main.tf file:

Adding the Application resource:

resource "appdynamics_application" "my_app" {
  name = "My Application"
  tier_name = "My Tier"
  account_name = "YOUR_ACCOUNT_NAME"
}

This will create an application named "My Application" under the specified account.

Deploying Changes

After defining your resources, you can deploy the changes using Terraform commands. Here’s how:

Run the following commands:

terraform init
terraform plan
terraform apply

The terraform init command initializes your Terraform environment. The terraform plan command shows what changes will be made, and terraform apply applies the changes.

Updating Resources

You can also update existing resources by modifying your main.tf file and running the terraform apply command again. For example, to change the application name:

Update the application resource:

resource "appdynamics_application" "my_app" {
  name = "My Updated Application"
  tier_name = "My Tier"
  account_name = "YOUR_ACCOUNT_NAME"
}

Deleting Resources

To delete a resource, simply remove its block from your main.tf file and run:

terraform apply

Terraform will prompt you to confirm the deletion of the specified resource.

Conclusion

The AppDynamics Terraform Provider enables users to manage AppDynamics resources effectively through code. By following this tutorial, you should now be able to install the provider, create applications, update them, and delete resources as needed. This integration of AppDynamics with Terraform allows for a more efficient DevOps workflow, promoting the principle of "Monitoring as Code".

AppDynamics Terraform Provider Tutorial