Lambda endpoint is unable to use licensing information

[SzymonPobiega]

Here's what happens

NServiceBus.Features.LicenseReminder. Fatal. Failed to initialize the license. Exception: System.IO.IOException: Read-only file system at System.IO.FileSystem.CreateDirectory(String fullPath) at System.IO.Directory.CreateDirectory(String path) at Particular.Licensing.TrialStartDateStore.GetTrialStartDate() at Particular.Licensing.ActiveLicense.Find(String applicationName, LicenseSource[] licenseSources) at NServiceBus.LicenseManager.InitializeLicense(String licenseText, String licenseFilePath) at NServiceBus.Features.LicenseReminder.Setup(FeatureConfigurationContext context)

[DavidBoike]

More generally, the user experience should be evaluated from the point of view of a new user of NServiceBus. The assumption that a new user will try things out locally is invalid - due to the quality of the Lambda local testing tools, we have found it common that users do their testing in actual Lambda. In this environment, NServiceBus is not able to write trial information into the locations it normally could on a developers workstation, so the entire trial workflow is disrupted.

At the very least, we should consider changing the LicenseReminder to guide users in the correct direction, whether directly in Licensing (where the message originates, which is bundled into Core) or if there is a way to have a context-aware message tailored to serverless.