zip all files in azure blob container - azure

Question

I am trying to use azure function to zip all files inside a blob container using System.IO.Compression.
I could list all files inside the container using the below CloudBlob code
CloudStorageAccount storageAccount = CloudStorageAccount.Parse (storageConn);
CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
CloudBlobContainer container = blobClient.GetContainerReference("<container>");
BlobContinuationToken blobToken = null;
var blobs = await container.ListBlobsSegmentedAsync(blobToken);
var fileList = new List<string>();
var blobpath1 = #"https://<pathtocontainer>/test.zip";
foreach (var blbitem in blobs.Results)
{
if (blbitem is CloudBlockBlob)
{
var blobFileName = blbitem.Uri.Segments.Last().Replace("%20", " ");
var blobFilePath = blbitem.Uri.AbsolutePath.Replace(blbitem.Container.Uri.AbsolutePath + "/", "").Replace("%20", " ");
var blobPath = blobFilePath.Replace("/" + blobFileName, "");
log.LogInformation("blob path : " + blbitem.Uri.ToString());
fileList.Add(blbitem.Uri.ToString());
string rootpath = #"D:\home\site\wwwroot\ZipandSendFile\temp\";
string path = rootpath + blobPath;
log.LogInformation("saving in " + path);
//Add to zip
/*
CloudBlobContainer container = cloudBlobClient.GetContainerReference("<container>");
CloudBlockBlob blob = container.GetBlockBlobReference(blobName);
using (FileStream fs = new FileStream(rootpath, FileMode.Create))
{
blob. DownloadToStream(fs);
}
*/
}
}
</code>
After getting each file details inside the blob , I am trying to add them into zip archive
using the below System.IO.Compression package
My attempt to download file
<code>
public static void AddFilesToZip(string zipPath, string[] files,ILogger log)
{
if (files == null || files.Length == 0)
{
return;
}
log.LogInformation("Executing add files to zip");
log.LogInformation(zipPath);
using (var zipArchive = ZipFile.Open(zipPath, ZipArchiveMode.Update))
{
log.LogInformation("in Zip archive");
foreach (var file in files)
{
var fileInfo = new FileInfo(file);
log.LogInformation(fileInfo.FullName);
zipArchive.CreateEntryFromFile(fileInfo.FullName, fileInfo.Name);
}
}
}
</code>
But I am getting access denied. Any pointers on this ?

Answer 1

Resolved issue by logging into kudo cmdshell and cd into directory and change file attribute
with attrib +A .