Azure BLOB 存储生命周期管理 - Append Blob 与块 blob

Question

I realize Azure Blob Storage Life Cycle Management supports only Block blobs. It doesn't support Append or Page blobs.

A solution we are considering is to - do the crude way - of enumerating blobs in each of the containers from a logic app or function app, and deleting based on certain rules similar to Azure's storage Life Cycle Management, say, modified date is n days old.

Has anyone run into a similar requirement of cleaning up storage? Could anyone suggest a better way of implementing this?

Greatly appreciate it.

Thank you Athadu

Answer 1

The only way I can think of same as you mentioned, create a timer trigger function app or webjob.

Here is the sample:

Blob storage package: Microsoft.Azure.Storage.Blob, version 11.1.3

The sample code:

    static void Main(string[] args)
    {
        var connection_str = "xxxxx";
        CloudStorageAccount storageAccount = CloudStorageAccount.Parse(connection_str);
        CloudBlobClient cloudBlobClient=storageAccount.CreateCloudBlobClient();

        //list all the containers
        var containers = cloudBlobClient.ListContainers();


        foreach (var container in containers)
        {
            Console.WriteLine(container.Name);

            //find blobs whose type is CloudAppendBlob
            var blobs = container.ListBlobs("", useFlatBlobListing: true).OfType<CloudAppendBlob>();


            if (blobs.ToList().Count() <=0) continue;

            foreach (var blob in blobs)
            {
                Console.WriteLine($"blob name is {blob.Name}");

                //add your own logic here
                //if condition use blob.Properties.LastModified

                blob.Delete();
            }
        }

   }

Hope it helps.