AddDatabase doesn't add any database

[jektvik]

I was wondering why the AddDatabase function isn't creating any databases (as the xml comment says it should)

Is this a forgotten implementation ? The below variable isn't used.

aspire/src/Aspire.Hosting.Azure.CosmosDB/AzureCosmosDBExtensions.cs

Line 78 in 3991282

cosmosSqlDatabases.Add(cosmosSqlDatabase);

[aaronpowell]

What's the Bicep (or resource in Azure) that you are seeing when deploying with Cosmos that has a configured database?

Looking through the code, the cosmosSqlDatabases collection is not actually needed (it's probably just there for debugging), as it's actually important that it's added to the AzureResourceInfrastructure instance, which it does on the line above:

aspire/src/Aspire.Hosting.Azure.CosmosDB/AzureCosmosDBExtensions.cs

Line 77 in 3991282

infrastructure.Add(cosmosSqlDatabase);

This results in the CosmosDBSqlDatabase Azure SDK resource being included in the Bicep generation. See this test as an example of the Bicep to be generated:

aspire/tests/Aspire.Hosting.Azure.Tests/AzureBicepResourceTests.cs

Line 241 in 3991282

public async Task AddAzureCosmosDBViaRunMode()

[jektvik]

Hi Aaaron -> I don't do deployment just local dev (for now anyway) so I can't help with what bicep will look like as i haven't gotten to that part yet. So my only observation is that the cosmos container appears as expected but it doesn't get any databases inside.

[aaronpowell]

Ah right. From looking into the codebase it looks like there's no special provisions for when using the emulator to pre-provision the databased. It might be possible with the CosmosDB SDK, but then the hosting integration would need to take a dependency on the SDK (which it doesn't currently) so it's probably not ideal.