Introduction

This action leverages steadybit/failure-azure-functions-net and the Azure App Configuration to fill the tmp disk of an ASP.NET application.

Use Cases

• Understand how an ASP.NET application behaves when it pollutes the tmp directory.

Prerequisites

ASP.NET application must use .NET 8 or higher.

ASP.NET application must be wrapped with the Steadybit Injection Middleware.

ASP.NET application must have STEADYBIT_FAILURE_INJECTION_ENDPOINT environment variable set to the Azure App Configuration endpoint.

Please note that multiple parallel failure injections on the same ASP.NET application are not supported.

Important Considerations

The default implementation of the Azure App Configuration middleware in .NET is non-blocking. Therefore, the configuration refresh does not occur in the request where refresh started; instead, it is active from that request onward.

Parameters

Parameter	Description	Default
Duration	The duration of the attack.	30s
Rate	The rate of invocations to affect. (100 = all request, 50 = half of all requests)	100%
Megabytes	Size in MB of the file created in tmp.