Simple client for uploading a local directory to an Azure blog storage container.

AzureBlobClient.cs

using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.WindowsAzure.Storage;
using Microsoft.WindowsAzure.Storage.Blob;

namespace PublishClickOnceToAzure
{
    public class AzureBlobClient
    {
        readonly string accessKey;
        readonly IProgress<string> progress;

        public AzureBlobClient(string accessKey, IProgress<string> progress)
        {
            this.accessKey = accessKey;
            this.progress = progress;
        }

        public void Push(string containerName, string publishDirectoryPath)
        {
            CloudStorageAccount storageAccount = CloudStorageAccount.Parse(accessKey);
            CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
            CloudBlobContainer container = blobClient.GetContainerReference(containerName);

            var task = RecreateContainer(container);
            Task.WaitAll(task);

            var publishDirectory = new DirectoryInfo(publishDirectoryPath);
            foreach (FileInfo publishFile in publishDirectory.EnumerateFiles("*", SearchOption.AllDirectories))
            {
                string blobName = publishFile.FullName.Replace(publishDirectoryPath, "");
                CloudBlockBlob blockBlob = container.GetBlockBlobReference(blobName);

                using (FileStream fileStream = publishFile.OpenRead())
                    blockBlob.UploadFromStream(fileStream);
            }
        }

        async Task RecreateContainer(CloudBlobContainer container)
        {
            if (!container.DeleteIfExists())
            {
                progress.Report("Container successfully created.");
                container.Create(BlobContainerPublicAccessType.Blob);
                return;
            }

            // Just because the Delete method returned doesn't mean 
            // you can immediately recreate the container.
            while (true)
            {
                progress.Report("Waiting 10 seconds for container to finish deleting...");
                await Task.Delay(10000);

                try
                {
                    // Ensure you do not call Create() with the default 
                    // parameters. Doing so will create a private container 
                    // which will not be accessible to anyone else.
                    container.Create(BlobContainerPublicAccessType.Blob);
                    progress.Report("Container successfully recreated.");
                    return;
                }
                catch (StorageException ex)
                {
                    progress.Report(ex.Message);
                }
            }
        }
    }
}

Program.cs

using System.Threading.Tasks;

namespace PublishClickOnceToAzure
{
    class Program
    {
        // Example usage...
        static void Main(string[] args)
        {
          // container name must be all lower case
          string containerName = "clickonceapp";
          // Make sure to include a trailing slash in the directory path.
          // Or, make the client code more robust. :-)
	  string publishDirectoryPath = @"C:\Projects\ClickOnceForm\ClickOnceForm\publish\";
	  // Add your account name and key here.
	  string accessKey = "DefaultEndpointsProtocol=https;AccountName=[youraccountname];AccountKey=[youraccountkey]";

          var progress = new Progress<string>(Console.WriteLine);
          var client = new AzureBlobClient(accessKey, progress);
          client.Push(containerName, publishDirectoryPath);

          Console.WriteLine("Done!");
          Console.ReadLine();
        }
    }
}