Category Azure functions
Using Key Vault certificates with Microsoft.Identity.Web and ASP.NET Core applications
This post shows how Azure Key Vault certificates can be used with Microsoft.Identity.Web in an ASP.NET Core application which requires a downstream “access_as_user” API. The Azure AD App Registrations requires a certificate instead of a client secret. Code: https://github.com/damienbod/AzureADAuthRazorUiServiceApiCertificate Posts in this series Implement Azure AD Client credentials flow using Client Certificates for service APIs […]
Securing Azure Functions using Azure AD JWT Bearer token authentication for user access tokens
This post shows how to implement OAuth security for an Azure Function using user-access JWT Bearer tokens created using Azure AD and App registrations. A client web application implemented in ASP.NET Core is used to authenticate and the access token created for the identity is used to access the API implemented using Azure Functions. Microsoft.Identity.Web […]
Securing Azure Key Vault inside a VNET and using from an Azure Function
This post shows how an Azure Key Vault can be protected inside an Azure virtual network. The deployment is setup so that only applications in the same VNET can access the Key Vault. To implement this, the access to the Key Vault is restricted to the VNET and secondly, the applications accessing the Key Vault […]
Securing Azure Functions using an Azure Virtual Network
In this post, an Azure Function is deployed in a Azure Virtual Network and the access to the Azure Function is restricted so that it cannot be reach from the Internet. Only Applications deployed in the same VNET can access the Azure Functions. Code: https://github.com/damienbod/AzureFunctionsSecurity Blogs in the series Securing Azure Functions using API Keys […]
Securing Azure Functions using certificate authentication
This article shows how to secure Azure Functions using X509 certificates. The client is required to send a specific certificate to access the Azure Function. Code: https://github.com/damienbod/AzureFunctionsSecurity Blogs in the series Securing Azure Functions using API Keys Securing Azure Functions using Certificate authentication Securing Azure Functions using an Azure Virtual Network Securing Azure Key Vault […]
Securing Azure Functions using API Keys
This article shows how to secure Azure Functions using API Keys. This is useful, if you have no control over the API client implementation, the client code base cannot be easily changed or the client is not Azure hosted. This should only be used with trusted clients and is for machine to machine usage. Code: […]
Retry Error Handling for Activities and Orchestrations in Azure Durable Functions
Azure Durable Functions provides a rich set of Error Handling APIs. This post shows how Activities or Sub-Orchestrations can be re-run with the different retry options. Activities in a workflow can call an API or run a code flow which might fail due to connection problems, network timeouts or other similar problems. If it was […]
Azure Durable Functions Monitoring and Diagnostics
The post shows some of the possibilities to monitor Azure Durable Functions and how diagnostic APIs could be implemented. Code: https://github.com/damienbod/AzureDurableFunctions Posts in this series Using External Inputs in Azure Durable functions Azure Functions Configuration and Secrets Management Using Key Vault and Managed Identities with Azure Functions Waiting for Azure Durable Functions to complete Azure […]
Waiting for Azure Durable Functions to complete
The article show how an Azure Durable Function can be used to process a HTTP API request which waits for the completion result. This can be required when you have no control over the client application calling the API and the process requires asynchronous operations like further API calls and so on. The Azure Durable […]
Using Key Vault and Managed Identities with Azure Functions
This article shows how Azure Key Vault could be used together with Azure Functions. The Azure Functions can use the system assigned identity to access the Key Vault. This needs to be configured in the Key Vault access policies using the service principal. By using the Microsoft.Azure.KeyVault and the Microsoft.Extensions.Configuration.AzureKeyVault nuget packages, defining direct references […]
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