Add Azure storage blob containers

[andwi]

Is there an existing issue for this?

• [X] I have searched the existing issues

Is your feature request related to a problem? Please describe the problem.

I want to declare the Azure storage blob containers that I need in the AppHost project and then I want azd to create them for me when I deploy.

Describe the solution you'd like

With Azure Service Bus it is possible to add queues and topics like this.

var sb = builder.AddAzureServiceBus("sb");
sb.AddQueue("myqueue");

I would like something similar for blob containers (and storage queues and tables for completeness).

var storage = builder.AddAzureStorage("storage");
var blobs = storage.AddBlobs("BlobConnection");
blobs.AddBlobContainer("mycontainer");

Additional context

No response

[davidfowl]

cc @tg-msft @JoshLove-msft