Need to add default Azure credential support to Akka.Persistence.Azure.Hosting about akka.persistence.azure

[wesselkranenborg]

This indeed caused us some headaches after we found out that there was some mismatch between blob and table support for DefaultAzureCredential. Blob supports it, but if you use Akka.Persistence.Azure.Hosting you also need to set .WithAzureBlobsSnapshotStore(string.Empty) to initialize the blob storage, but connection information is set via AzureBlobSnapshotSetup.Create, which is not part of the AzureBlobSnapshotStoreSettings. This caused some confusion. But good to read that this will be unified and working the same.

My suggestion would be to create some Akka.Persistence.Azure.Hosting which support
.WithAzureBlobsSnapshotStore(new DefaultAzureCredential())
.WithAzureTableJournal(new DefaultAzureCredential())
.WithAzurePersistence(new DefaultAzureCredential())

I'm currently testing this support in our application and I have my doubts if the combination between the current WithAzureBlobsSnapshotStore and AzureBlobSnapshotSetup.Create is working together or that they conflict with each other. Will let it know once I know it.

[wesselkranenborg]

After some tests I know for sure that I need .WithAzureBlobsSnapshotStore("MyStorageConnectionString") to get Blob Snapshots work. And this Akka.Hosting feature is not working together with AzureBlobSnapshotSetup.Create.

So if you use Akka.Persistence.Azure.Hosting to setup Akka.Persistence.Azure the following combinations work:

• DefaultAzureCredentials via AzureBlobSnapshotSetup.Create together with HOCON configuration for BlobSnapshots
• WithAzureBlobsSnapshotStore with the use of a connectionstring.

These both options work together with WithAzureTableJournal because that one always needs a connection string.

[Arkatufus]

@wesselkranenborg All those problems should be addressed in #237

[wesselkranenborg]

Indeed, looks very good. Am eager to try it ;-)