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Azure CLI Deployment

This directory includes Bash scripts designed for deploying and testing the sample Web App utilizing the azlocal CLI. Refer to the Azure Functions App with Managed Identity guide for details about the sample application.

Prerequisites

Before deploying this solution, ensure you have the following tools installed:

Installing azlocal CLI

The deploy.sh Bash script uses the azlocal CLI to work with LocalStack. Install it using:

pip install azlocal

For more information, see Get started with the az tool on LocalStack.

Architecture Overview

This deploy.sh script creates the following Azure resources using Azure CLI commands:

  1. Azure Storage Account: Provides blob storage with input and output containers for storing text blobs processed by the function app.
  2. Azure App Service Plan: Defines the compute resources (CPU, memory, and scaling options) that host the Azure Functions app.
  3. Azure Functions App: Hosts the serverless application that processes text blobs. The function app uses managed identity to securely access the Azure Storage Account without requiring explicit credentials.
  4. Managed Identity: Provides secure, credential-free authentication between the Azure Functions app and storage account. Supports both system-assigned and user-assigned identity types.
  5. Role Assignment: Grants the Azure Functions app's managed identity the Storage Blob Data Contributor and Storage Queue Data Contributor roles, enabling read/write access to blob containers and queues for processing text data.

For more information on the sample application, see Azure Functions App with Managed Identity.

Provisioning Scriptss

This sample provides two Bash scripts to streamline the deployment process by automating the provisioning of Azure resources and the sample application:

  • user-managed-identity.sh: Configures the Azure Functions App to authenticate with Azure Storage using a user-assigned managed identity
  • system-managed-identity.sh: Configures the Azure Functions App to authenticate with Azure Storage using a system-assigned managed identity

These scripts eliminate manual configuration steps and enable one-command deployment of the entire infrastructure.

Note

You can use the azlocal CLI as a drop-in replacement for the az CLI to direct all commands to the LocalStack for Azure emulator. Alternatively, run azlocal start-interception to automatically intercept and redirect all az commands to LocalStack. To revert back to the default behavior and send commands to the Azure cloud, run azlocal stop-interception.

Deployment

You can set up the Azure emulator by utilizing LocalStack for Azure Docker image. Before starting, ensure you have a valid LOCALSTACK_AUTH_TOKEN to access the Azure emulator. Refer to the Auth Token guide to obtain your Auth Token and specify it in the LOCALSTACK_AUTH_TOKEN environment variable. The Azure Docker image is available on the LocalStack Docker Hub. To pull the Azure Docker image, execute the following command:

docker pull localstack/localstack-azure-alpha

Start the LocalStack Azure emulator using the localstack CLI, execute the following command:

export LOCALSTACK_AUTH_TOKEN=<your_auth_token>
IMAGE_NAME=localstack/localstack-azure-alpha localstack start

Navigate to the scripts folder:

cd samples/function-app-managed-identity/python/scripts

Make the script executable:

chmod +x deploy.sh

Run the deployment script:

./deploy.sh

Validation

After deployment, you can use the validate.sh script to verify that all resources were created and configured correctly:

#!/bin/bash

# Variables
ENVIRONMENT=$(az account show --query environmentName --output tsv)

# Choose the appropriate CLI based on the environment
if [[ $ENVIRONMENT == "LocalStack" ]]; then
	echo "Using azlocal for LocalStack emulator environment."
	AZ="azlocal"
else
	echo "Using standard az for AzureCloud environment."
	AZ="az"
fi

# Check resource group
$AZ group show \
  --name local-rg \
  --output table

# List resources
$AZ resource list \
  --resource-group local-rg \
  --output table

# Check function app status
$AZ functionapp show  \
  --name local-func-test \
  --resource-group local-rg \
  --output table

# Check storage account properties
$AZ storage account show \
  --name localstoragetest \
  --resource-group local-rg \
  --output table

# List storage containers
$AZ storage container list \
  --account-name localstoragetest \
  --output table \
  --only-show-errors

Cleanup

To destroy all created resources:

# Delete resource group and all contained resources
az group delete --name local-rg --yes --no-wait

# Verify deletion
az group list --output table

This will remove all Azure resources created by the CLI deployment script.

Related Documentation