In this tutorial, we will walk you through the process of creating and deploying an Azure Function using the Azure CLI. We will cover the following steps:
- Install the Azure CLI
- Create a new Azure Function app
- Create a new Azure Function
- Test the Azure Function locally
- Deploy the Azure Function to Azure
- Test the Azure Function in Azure
Let’s get started!
1. Install the Azure CLI
Before we can create and deploy an Azure Function using the Azure CLI, we need to install the Azure CLI. You can download and install the Azure CLI from the following link: https://docs.microsoft.com/en-us/cli/azure/install-azure-cli
2. Create a new Azure Function app
The first step is to create a new Azure Function app. An Azure Function app provides a managed platform for running serverless applications. You can create an Azure Function app using the following command:
az functionapp create --resource-group <resource-group-name> --name <function-app-name> --storage-account <storage-account-name> --consumption-plan-location <region>
Replace <resource-group-name> with the name of the resource group where you want to create the function app. Replace <function-app-name> with the name you want to give your function app. Replace <storage-account-name> with the name you want to give your storage account. Replace <region> with the region where you want to create the function app.
For example, the following command creates a new Azure Function app named “myfunctionapp” in the “myresourcegroup” resource group, using a storage account named “mystorageaccount” in the “eastus” region:
az functionapp create --resource-group myresourcegroup --name myfunctionapp --storage-account mystorageaccount --consumption-plan-location eastus
3. Create a new Azure Function
Once we have created our Azure Function app, we can create a new Azure Function. An Azure Function is a small piece of code that runs in response to an event or trigger. You can create an Azure Function using the following command:
az functionapp function create --resource-group <resource-group-name> --name <function-app-name> --function-name <function-name> --os-type <os-type> --runtime <runtime> --trigger-http
Replace <resource-group-name> with the name of the resource group where your function app is located. Replace <function-app-name> with the name of your function app. Replace <function-name> with the name you want to give your function. Replace <os-type> with the operating system type you want to use. Replace <runtime> with the runtime you want to use. Finally, add --trigger-http to specify that the function should be triggered by an HTTP request.
For example, the following command creates a new Azure Function named “myfunction” in the “myfunctionapp” function app, using the default operating system and runtime:
az functionapp function create --resource-group myresourcegroup --name myfunctionapp --function-name myfunction --os-type Windows --runtime dotnet --trigger-http
4. Test the Azure Function locally
Once we have created our Azure Function, we can test it locally before deploying it to Azure. To do this, we need to install the Azure Functions Core Tools. You can download and install the Azure Functions Core Tools from the following link: https://docs.microsoft.com/en-us/azure/azure-functions/functions-run-local?tabs=windows%2Ccsharp%2Cbash
Once you have installed the Azure Functions Core Tools, you can test your Azure Function using the following command:
func start
This will start the Azure Functions runtime and host your function locally. You can then make an HTTP request to your function using a tool like Postman or curl. For example, if your function is triggered by an HTTP request, you can make a GET request to the following URL:
http://localhost:7071/api/myfunction
Replace myfunction with the name of your function. You should see the output of your function in the console.
5. Deploy the Azure Function to Azure
Once we have tested our Azure Function locally, we can deploy it to Azure. To deploy an Azure Function, we need to publish it to our function app. You can publish your Azure Function using the following command:
func azure functionapp publish <function-app-name>
Replace <function-app-name> with the name of your function app. You will be prompted to enter your Azure credentials.
This will package and upload your function to Azure, and deploy it to your function app. You can monitor the progress of the deployment in the console.
6. Test the Azure Function in Azure
Once your Azure Function has been deployed to Azure, you can test it using an HTTP request. To get the URL of your function, run the following command:
az functionapp function show --resource-group <resource-group-name> --name <function-app-name> --function-name <function-name> --query "invokeUrlTemplate" --output tsv
Replace <resource-group-name> with the name of your resource group. Replace <function-app-name> with the name of your function app. Replace <function-name> with the name of your function.
This will display the URL of your function in the console. You can then make an HTTP request to your function using a tool like Postman or curl. For example, if your function is triggered by an HTTP request, you can make a GET request to the URL displayed in the console.
Congratulations! You have successfully created and deployed an Azure Function using the Azure CLI.