Post on 12-Sep-2021
transcript
Jai Haridas
Engineer
Microsoft Corporation
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Blobs
Drives
Tables – Provide structured storage. A Table is a set of entities, which contain a set of properties
Queues
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http://www.microsoft.com/windowsazure/offers/
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BlobContainerAccount
cohowinery
images
PIC01.JPG
PIC02.JPG
videos VID1.AVI
http://<account>.blob.core.windows.net/<container>/<blobname>
− PutBlob
− GetBlob
− DeleteBlob
− CopyBlob
− SnapshotBlob
− LeaseBlob
Cache-Control, Content-Encoding, Content-Type, etc
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CloudStorageAccount account = CloudStorageAccount.FromConfigurationSetting("CloudStorageAccount");
CloudBlobClient blobClient = new CloudBlobClient(account.BlobEndpoint, account.Credentials);
// Create ContainerCloudBlobContainer cloudContainer = blobClient.GetContainerReference(containerName);bool hasCreated = cloudContainer.CreateIfNotExist();
// Access Blob in the ContainerCloudBlob cloudBlob = cloudContainer.GetBlobReference(blobName);
//BlobRequestOptions has retry policy, timeout etc.BlobRequestOptions options = new BlobRequestOptions();
//Upload the local file to Blob servicecloudBlob.UploadFile(uploadFileName, options);
//Download to local file namecloudBlob.DownloadToFile(downloadFileName, options);
Blob Client Library Example
Two Types Of Blobs Under The Hood
blocks
pages
Block BlobStreaming Workload w/ Random Reads + Committed Writes
10 GB Movie
Windows Azure Storage
Blo
ck
Id
1B
lock
Id
2B
lock
Id
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Blo
ck
Id
N
blobName = “blob.wmv”;PutBlock(blobName, blockId1, block1Bits);PutBlock(blobName, blockId2, block2Bits);…………PutBlock(blobName, blockIdN, blockNBits);PutBlockList(blobName,
blockId1, blockId2…,blockIdN);
blob.wmvblob.wmv
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•• PutPage 512, 2048• PutPage 0, 1024• ClearPage 512, 1536• PutPage 2048,2560
• GetPageRange 0, 4096
• 0,512 1536,2560
• GetBlob 1000, 2048••
1536,2048
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10 GB
10 G
B A
dd
ress S
pace
512
1024
1536
2048
2560
Microsoft Confidential 16
Shared Access Signature (SAS)
st=2009-11-07T08:49Z &se=2009-11-07T09:49Z&sr=c &sp=rw&sig=3OSeIHP8haK%2fle9%2bBK3BX1DsdMM%3d
https://cohowinery.blob.core.windows.net/images/pic1.jpg?
st=2009-11-07T08:49Z &se=2009-11-07T09:49Z &sr=c &sp=rw
&sig=3OSeIHP8haK%2fle9%2bBK3BX1DsdMM%3d
https://cohowinery.blob.core.windows.net/images/pic1.jpg?
si=foo
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Permission Resource Supported Operations
Read Container Read properties, content and metadata for any
blob in container
Read Blob Read properties, content and metadata for
specified blob in container
Write Container Create/Update content, properties and
metadata for any blob in container. CANNOT
create containers
Write Blob Create/Update content, properties and
metadata for specified blob in container
Delete Container Delete any blob in container. CANNOT delete
container
Delete Blob Delete specified blob
List Container List blobs in container
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Blob Client Library SAS ExampleCloudBlobContainer container = blobClient.GetContainerReference("testcontainer");container.CreateIfNotExist();
// Create a permission policy and store it in container using SetPermissionsBlobContainerPermissions blobPermissions = new BlobContainerPermissions();blobPermissions.SharedAccessPolicies.Add("mypolicy", new SharedAccessPolicy()
{ SharedAccessStartTime = DateTime.Now, SharedAccessExpiryTime = DateTime.Now.AddHours(10),Permissions = SharedAccessPermissions.Write
| SharedAccessPermissions.Read});
// Make it a private folderblobPermissions.PublicAccess = BlobContainerPublicAccessType.Off;container.SetPermissions(blobPermissions);
// Get SAS and share it with intended usersstring sas = container.GetSharedAccessSignature(new SharedAccessPolicy(), "mypolicy");
// Clients can utilize the sas in the following mannerCloudBlobClient sasBlobClient = new CloudBlobClient(
account.BlobEndpoint, new StorageCredentialsSharedAccessSignature(sas));
CloudBlob blob = sasBlobClient.GetBlobReference("testcontainer/test.txt");blob.UploadText("Hello SAS World");
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http://<id>.vo.msecnd.net/
http://events.cohowinery.com/
http://account.blob.core.windows.net/
− Note
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Table Storage Concepts
EntityTableAccount
cohowinery
customers
Name =…
Email = …
Name =…
Email = …
winephotos
Photo ID =…
Date =…
Photo ID =…
Date =…
Queue Storage Concepts
MessageQueueAccount
order processing
CustomerID
OrderID
http://....
CustomerID
OrderID
http://...
cohowinery
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− Blobs
− Drives
− Tables
− Queues
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http://www.microsoft.com/windowsazure/offers/
http://www.microsoft.com/windowsazure/
http://blogs.msdn.com/windowsazurestorage/
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