Learn how to create Blob Containers in Azure

Creating Blob Containers in Azure is a straightforward process.

A blob container is a logical grouping of blobs (files) in an Azure Storage account.

Below is a detailed guide on how to create a blob container in Azure.

Method 1: Create a Blob Container using Azure Portal

Step 1: Log in to the Azure Portal

1. Go to Azure Portal.

2. Sign in with your Azure account credentials.

Step 2: Navigate to the Storage Account

1. In the left sidebar, select Storage accounts.

2. Select the Storage account where you want to create the blob container.

   • If you don't have one, create a new storage account by clicking + Add and following the prompts.

Step 3: Create the Blob Container

1. In your selected storage account, scroll down and under the Data storage section, click on Containers.

2. Click on + Container at the top of the screen.

3. In the Create container pane:

   • Name: Enter a unique name for the blob container (e.g., mycontainer).

   • Public Access Level:

     • Private: No public access to the blobs.

     • Blob: Public read access to blobs only.

     • Container: Public read and list access to both the blobs and the container.

4. Click Create.

Your blob container is now created, and you can start uploading blobs (files) into it.

Method 2: Create a Blob Container using Azure CLI

Step 1: Install Azure CLI

If you haven’t already installed Azure CLI, download and install it from the official site: .

Step 2: Log in to Azure CLI

Open your terminal or command prompt and log in using the following command:

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az login

Follow the prompts to authenticate.

Step 3: Create the Blob Container

Once you're logged in, run the following command to create a blob container:

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az storage container create \
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--name <container-name> \
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--account-name <storage-account-name> \
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--public-access off

• Replace <container-name> with your desired container name (e.g., mycontainer).

• Replace <storage-account-name> with your Azure Storage account name.

• The --public-access off option ensures that the container has no public access.

  • You can change it to blob or container depending on the access level you want.

Example

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az storage container create \
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--name mycontainer \
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--account-name mystorageacct \
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--public-access off

Method 3: Create a Blob Container using Azure PowerShell

Step 1: Install Azure PowerShell

If you haven’t already installed Azure PowerShell, follow the instructions here: Install Azure PowerShell.

Step 2: Log in to Azure

Use the following command to sign in to Azure:

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Connect-AzAccount

Step 3: Create the Blob Container

Use the following PowerShell command to create a blob container:

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$context = New-AzStorageContext `
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-StorageAccountName <storage-account-name> `
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-StorageAccountKey <storage-account-key>
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New-AzStorageContainer `
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-Name <container-name> `
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-Context $context `
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-PublicAccess Off

• Replace <storage-account-name> with your storage account name.

• Replace <storage-account-key> with your storage account key

  • You can get this from the Access keys section of your storage account.

• Replace <container-name> with the desired blob container name.

• The -PublicAccess Off option ensures that no public access is allowed.

Example

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$context = New-AzStorageContext `
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-StorageAccountName mystorageacct `
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-StorageAccountKey <storage-account-key>
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New-AzStorageContainer `
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-Name mycontainer `
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-Context $context `
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-PublicAccess Off

Method 4: Create a Blob Container Using Azure SDKs

If you're developing an application that interacts with Azure Blob Storage, you can use Azure SDKs for languages like Python, .NET, Java, or Node.js.

Example in Python

1. Install the Azure Blob Storage SDK:

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pip install azure-storage-blob

2. Use the following Python code to create a container:

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from azure.storage.blob import BlobServiceClient
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# Azure storage account connection string
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connection_string = "<your-connection-string>"
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# Create BlobServiceClient
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blob_service_client = BlobServiceClient.from_connection_string(connection_string)
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# Create a container
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container_name = "mycontainer"
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container_client = blob_service_client.create_container(container_name)
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print(f"Container '{container_name}' created successfully.")

Replace <your-connection-string> with your actual connection string from the Azure Portal.

Step 5: Upload Files to Your Blob Container

Once you’ve created a blob container, you can start uploading files (blobs) into it using:

Azure Portal

• Go to the Containers section.

• Open the container you created.

• Click Upload and select the file(s) you want to upload.

Azure CLI

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az storage blob upload \
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--container-name <container-name> \
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--file <path-to-your-file> \
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--name <blob-name> \
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--account-name <storage-account-name>

PowerShell

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Set-AzStorageBlobContent `
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-Container <container-name> `
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-File <path-to-your-file> `
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-Blob <blob-name> `
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-Context $context

Summary

By following these steps, you can create blob containers in Azure using different methods, whether it's the Azure Portal, CLI, PowerShell, or SDKs.