Create a function app with a named Storage account connection

This Azure Functions sample script creates a function app and connects the function to an Azure Storage account. The created app setting that contains the storage connection string can be used with a storage trigger or binding.

If you don't have an Azure subscription, create a trial account before you begin.

Prerequisites

You can use the local Azure CLI.

• If you prefer, install the Azure CLI to run CLI reference commands.

• Local Azure CLI, see how to install the Azure CLI. If you're running on Windows or macOS, consider running Azure CLI in a Docker container. For more information, see How to run the Azure CLI in a Docker container.

  • Sign in to the Azure CLI by using the az login command. To finish the authentication process, follow the steps displayed in your terminal. For other sign-in options, see Sign in with the Azure CLI.

  • When you're prompted, install the Azure CLI extension on first use. For more information about extensions, see Use extensions with the Azure CLI.

  • Run az version to find the version and dependent libraries that are installed. To upgrade to the latest version, run az upgrade.

Sample script

Run the script

#!/bin/bash

# <FullScript>
# Function app and storage account names must be unique.

# Variable block
let "randomIdentifier=$RANDOM*$RANDOM"
location="chinanorth2"
resourceGroup="msdocs-azure-functions-rg-$randomIdentifier"
tag="create-function-app-connect-to-storage-account"
functionApp="msdocs-serverless-function-$randomIdentifier"
skuStorage="Standard_LRS"
functionsVersion="4"

# Create a resource group
echo "Creating $resourceGroup in "$location"..."
az group create --name $resourceGroup --location "$location" --tags $tag

# Create an Azure storage account in the resource group.
echo "Creating $storage"
az storage account create --name $storage --location "$location" --resource-group $resourceGroup --sku $skuStorage

# Create a serverless function app in the resource group.
echo "Creating $functionApp"
az functionapp create --name $functionApp --resource-group $resourceGroup --storage-account $storage --consumption-plan-location "$location" --functions-version $functionsVersion

# Get the storage account connection string. 
connstr=$(az storage account show-connection-string --name $storage --resource-group $resourceGroup --query connectionString --output tsv)

# Update function app settings to connect to the storage account.
az functionapp config appsettings set --name $functionApp --resource-group $resourceGroup --settings StorageConStr=$connstr
# </FullScript>

# echo "Deleting all resources"
# az group delete --name $resourceGroup -y

Clean up resources

Use the following command to remove the resource group and all resources associated with it using the az group delete command - unless you have an ongoing need for these resources. Some of these resources may take a while to create, as well as to delete.

az group delete --name $resourceGroup

Sample reference

This script uses the following commands. Each command in the table links to command specific documentation.

Command	Notes
az group create	Create a resource group with location.
az storage account create	Create a storage account.
az functionapp create	Creates a function app in the serverless Consumption plan.
az storage account show-connection-string	Gets the connection string for the account.
az functionapp config appsettings set	Sets the connection string as an app setting in the function app.

Next steps

For more information on the Azure CLI, see Azure CLI documentation.

Additional Azure Functions CLI script samples can be found in the Azure Functions documentation.