Sonar upgrade POC - Updated example README

examples/upgrade/README.md

@@ -9,12 +9,19 @@ This procedure consists of:
 2. Upgrade
 3. Postflight validations
 
+## Prerequisites
+
+1. Install [git](https://git-scm.com)
+2. Install [Terraform](https://developer.hashicorp.com/terraform). Latest Supported Terraform Version is 1.5.x. Using a higher version may result in unexpected behavior or errors.
+3. Install [Python 3](https://www.python.org/)
+4. Request access to Sonar installation software in S3 bucket [here](https://docs.google.com/forms/d/1xG_TNwAiu_WGCYoXs-YfV3Ds3nEMb60xlVBojoOXCJc)
+
 ## Running the Example
-Enter the list of DSF Hubs and Agentless Gateways in the [main.tf](./main.tf) file, then run the example as follows:
+Enter the details of DSF Hubs and Agentless Gateways in the [main.tf](./main.tf) file, then run the example as follows:
 ```bash
 terraform apply
 ```
-If re-applying is necessary for some reason, from the second apply onward, run the example as follows:
+To re-apply when there are no Terraform changes (the Terraform infrastructure matches the configuration), run the example as follows:
 ```bash
 terraform apply -replace="module.sonar_upgrader.null_resource.sonar_upgrader"
 ```

examples/upgrade/modules/sonar_upgrader_python/versions.tf

@@ -1,10 +1,3 @@
 terraform {
   required_version = ">= 1.3.1, < 1.6.0"
-
-  # required_providers {
-  #   aws = {
-  #     source  = "hashicorp/aws"
-  #     version = ">= 4.23.0"
-  #   }
-  # }
 }