Azure File Shares with volume mount

[jpapa020]

Ok I am Migrating an application to use Aspire and its various hosting integration. I have this running locally no so the next step is to deploy the thing.

I am using azure cli however when I run up I get the following error:

  (-) Skipped: Didn't find new changes.
  |====   | uploading files to fileShare
ERROR: error executing step command 'provision': deployment failed: error running bind mount operation: error binding mount: uploading folder to file share: invalid argument: body must contain readable data whose size is > 0

One of the things it needs to do in bind a volume of a file share in a azure storage account to a volume on the container. However the current Aspire.Hosting.Azure.Storage has no integration with file shares.

I thought potentially I could use the UNC as the source then add an annotaion to the resource like below

public static IResourceBuilder<ProjectResource> WithVolumeMount(
    this IResourceBuilder<ProjectResource> builder,
    string source,
    string target,
    ContainerMountType type = ContainerMountType.Volume,
    bool readOnly = false)
{

    if (builder.ApplicationBuilder.ExecutionContext.IsRunMode)
    {
        return builder;
    }

    builder.Resource.Annotations.Add(
        new ContainerMountAnnotation(source, target, type, readOnly)
    );
    return builder;
}

Is the best was to do this via custom bicep due to the lack of integration with file shares?

[vhvb1989]

@jpapa020 , the setup for the storage account and volumes should be automatic. it seems like azd is failing while trying to upload the files into the share because one of the files is size=0. Can you share the code from your AppHost?

You can run azd infra gen to see that the storage account for the volumes and the volumes mounted steps. But you might want to take a look to a file called azd.operarions.yaml in the infra folder and check what are the paths references there to be uploaded. Then check if you have a size=0 file in the source path.

[jpapa020]

@vhvb1989 Thanks for your reply :) I don't add the Aspire.Hosting.Azure.Storage integration as it doesn't appear to support File shares it does for blobs, queues and Tables though. My code currently tries to do a volume mount using the snippet above so it appears as a local set of files as the application code uses file streams to read and right so to change that would be a fairly big lift. Essentially when deployed I want to bind mount the file share on the aca container.

Like the code snippet below:

private static string sourcePathOpusShare = @"\\mystorageaccount.file.core.windows.net\my-file-share";

 public static IResourceBuilder<ProjectResource> WithOpusDataPaths(this IResourceBuilder<ProjectResource> builder)
 {

     var config = builder.ApplicationBuilder.Configuration;


     if (builder.ApplicationBuilder.ExecutionContext.IsRunMode)
     {
         builder.WithEnvironment("opus__paths__data__windows", AppHostUtils.GetRequired(config, "opus:paths:data:windows"));
         builder.WithEnvironment("opus__paths__data__linux", AppHostUtils.GetRequired(config, "opus:paths:data:linux"));
     }
     else
     {
         CheckAndAddVolumeMount(builder, sourcePathOpusData, "/opus/data");
         builder.WithEnvironment("opus__paths__data__windows", "/opus/data");
         builder.WithEnvironment("opus__paths__data__linux", "/opus/data");
     }

     return builder;
 }

 public static IResourceBuilder<ProjectResource> WithVolumeMount(
     this IResourceBuilder<ProjectResource> builder,
     string source,
     string target,
     ContainerMountType type = ContainerMountType.Volume,
     bool readOnly = false)
 {

     if (builder.ApplicationBuilder.ExecutionContext.IsRunMode)
     {
         return builder;
     }

     builder.Resource.Annotations.Add(
         new ContainerMountAnnotation(source, target, type, readOnly)
     );
     return builder;
 }

 private static void CheckAndAddVolumeMount(IResourceBuilder<ProjectResource> builder, string source, 
string target, ContainerMountType type = ContainerMountType.Volume, bool readOnly = false)
 {


     var exists = builder.Resource.Annotations
         .OfType<ContainerMountAnnotation>()
         .Any(a => a.Source == source && a.Target == target);

     if (exists)
     {
         return;
     }

     builder.WithVolumeMount(source, target, type, readOnly);
 }

[vhvb1989]

I thought you were talking about WithBindMount() Have you seen that one?

Like: https://github.com/dotnet/aspire/blob/main/playground/mysql/MySqlDb.AppHost/Program.cs#L9

When azd deploys an AppHost using that API, it automatically creates the storaga-account, the volumens and the configuration for the ACA. Then, it also uploads the files you define (a file or folder) to the storage account.

[jpapa020]

I have but that is not an extension on a project sadly :(

[vhvb1989]

ah see.
That´s probably a good feature request for Aspire (@davidfowl )