Correctly Get CosmosDB Connection String

[jcdickinson]

I am adding the Cosmos connection string to a resource with, effectively, this code:

resource.WithEnvironment("CosmosDb__ConnectionString", /* (IResource<IResourceWithConnectionString>) */ cosmos)

When the target resource is a container (which contains a built dotnet project), I get the following connection string:

AccountKey=C2...==;AccountEndpoint=https://cosmos:8081;...

There is no corresponding Services declaration (because the resource isn't an IResourceWithServiceDiscovery). Obviously the client subsequently fails to connect. The emulator endpoint contains tcp://cosmos:8081, which is also incorrect.

What is the correct way to get the connection string for use inside a container (that being one which will work with the emulator, the emulator desktop app, and the real azure cosmos db - depending on user preference)?

[jcdickinson]

It was LimitToEndpoint