az deployment group create : "The content for this response was already consumed"

Question

Followed instructions to create ARM resource on Microsoft Learn resource group.

When modifying the ARM template and re-executing, the command fails with:

$ az deployment group create --name add-storage --template-file azuredeploy2.json

The content for this response was already consumed

content of template:

{
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {},
    "functions": [],
    "variables": {},
    "resources": [{
        "name": "learnexercise12321",
        "type": "Microsoft.Storage/storageAccounts",
        "apiVersion": "2023-05-01",
        "tags": {
            "displayName": "learnexercise12321"
        },
        "location": "[resourceGroup().location]",
        "kind": "StorageV2",
        "sku": {
            "name": "Standard_LRS"        
        }
    }],
    "outputs": {}
}

versioning info:

$ az --version
azure-cli                         2.68.0
core                              2.68.0
telemetry                          1.1.0
Dependencies:
msal                              1.31.0
azure-mgmt-resource               23.2.0
Python location '/nix/store/45g1q2ama4j033d5qi2lgfzy1xmagnmf-python3-3.12.8/bin/python3.12'
Extensions directory '/Users/rngadam/.azure/cliextensions'
Python (Darwin) 3.12.8 (main, Dec  3 2024, 18:42:41) [Clang 19.1.6 ]
Legal docs and information: aka.ms/AzureCliLegal
Your CLI is up-to-date.

This question is related to the following Learning Module

Answer 1

Replace az deployment group create with az deployment group what-if - doing this will do a mock/test deploy and will output deployment success or error message.

I got this error:

PreflightValidationCheckFailed - Preflight validation failed. Please refer to the details for the specific errors.
StorageAccountAlreadyTaken - The storage account named <storage_account_name> is already taken.

Likewise, I changed name and displayName for storage account resource and ran deploy with what-if until I got a success message.

In my case, when following ARM template sandbox tutorial my name and displayName wasn't unique enough.

Answer 2

The error message "The content for this response was already consumed" typically indicates that there is an issue with the deployment process, possibly related to the ARM template or the Azure CLI command being used. Here are a few steps you can take to troubleshoot this issue:

1. Check the Template: Ensure that your ARM template is correctly formatted and adheres to the required schema. In your provided template, the structure looks correct, but verify that the storage account name is unique and follows the naming conventions (between 3 and 24 characters, using only lowercase letters and numbers).
2. Deployment Name: Make sure that the deployment name you are using (add-storage) is unique within the resource group. If a deployment with the same name already exists, it may cause conflicts.
3. Verbose Logging: Use the --verbose or --debug flags with your command to get more detailed output about what might be going wrong. This can provide insights into any specific issues during the deployment.
4. Resource Group: Confirm that the resource group you are targeting exists and is correctly specified in your command. You can list your resource groups using az group list.
5. Azure CLI Version: Your Azure CLI is up-to-date, which is good. However, if the issue persists, consider reinstalling or updating the Azure CLI to ensure there are no underlying issues.
6. Check Azure Status: Sometimes, Azure services may experience outages or issues. Check the Azure status page to see if there are any ongoing issues that might affect your deployment.

If you continue to face issues, consider simplifying your template to a minimal version and gradually adding complexity back to identify the source of the problem.

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References:

• Quickstart: Troubleshoot ARM template JSON deployments
• Tutorial: Add parameters to your ARM template
• Tutorial: Add a resource to your ARM template