Print Azure Environment Variables

A simple, zero dependency CLI script which fetches environment variables from an Azure App Service (or Function App) and prints them in a variety of formats.

This is useful for local application development (syncing remote environment variables) and also for disaster recovery planning in situations where you need to spin up a new application with identical variables as fast as possible. Keyvault secrets are automatically fetched so that you have a "clear text" representation of what the environment looks like.

Installation

1. Ensure that you have installed the Microsoft Azure CLI.
2. Check that you are signed in and have chosen the correct subscription: az login.
3. Make sure you are running NodeJS 20+: node -v.
4. Install this script globally using the NPM package manager:

$ npm install -g @adammcarth/print-azure-env

Usage

$ print-azure-env --type webapp --resource-group staging --name my-webapp

| Flag | Description | Required? | Default | |----------------------|------------------------------------------------------------------------------------------|-----------|------------| | -h, --help | Display further CLI documentation in the console. | No | | | -t, --type | The type of Azure resource. Use either webapp or functionapp. | Yes | | | -r, --resource-group | The plain text name of the resource group your application sits under. | Yes | | | -n, --name | The plain text resource name for your application. | Yes | | | -s, --slot | Optional. | No | Production | | -f, --format | What format to print the data in. Allowed values: dotenv, local_settings or azure. | No | dotenv | | --no-keyvault | Prevent this script from fetching secrets from the keyvault. | No | false |

Supported Output Formats

You can paste this output into a .env file at the root of your local application.

--format dotenv

VARIABLE_A=value
VARIABLE_B=value

--format local_settings

This format is used by Azure Function Apps during local development (as opposed to a .env file). Save the output of this into the root directory of your Function App repository in a file called local.settings.json.

{
  "Encrypted": false,
  "Values": {
    "VARIABLE_A": "value",
    "VARIABLE_B": "value"
  }
}

--format azure

This is the standard Azure environment variable configuration format. You can paste the contents of this output into the "Advanced edit" section inside the environment variable configuration tab in your Azure Portal. This allows you to easily copy the environment variables from one application to another, whilst also removing any dependencies on a keyvault (if necessary).

[
  {
    "name": "VARIABLE_A",
    "value": "value",
    "slotSetting": false
  },
  {
    "name": "VARIABLE_B",
    "value": "value",
    "slotSetting": false
  }
]