At this scope, a role assignment applies to all of the tables in all of the storage accounts in all of the resource groups in the subscription. At this scope, a role assignment applies to all of the tables in all of the storage accounts in the resource group. At this scope, a role assignment applies to all tables in the account. At this scope, a role assignment applies to the specified table. You can scope access to Azure table resources at the following levels, beginning with the narrowest scope: Azure RBAC roles defined at a broader scope are inherited by the resources beneath them. Best practices dictate that it's always best to grant only the narrowest possible scope. Resource scopeīefore you assign an Azure RBAC role to a security principal, determine the scope of access that the security principal should have. An Azure AD security principal may be a user, a group, an application service principal, or a managed identity for Azure resources. When an Azure role is assigned to an Azure AD security principal, Azure grants access to those resources for that security principal. You can also define custom roles for access to table data. Azure Storage defines a set of Azure built-in roles that encompass common sets of permissions used to access table data. Assign Azure roles for access rightsĪzure Active Directory (Azure AD) authorizes access rights to secured resources through Azure role-based access control (Azure RBAC). To learn how to request an access token and use it to authorize requests, see Authorize access to Azure Storage with Azure AD from an Azure Storage application. Native applications and web applications that make requests to the Azure Table service can also authorize access with Azure AD. To learn more about assigning Azure roles for table access, see Assign an Azure role for access to table data. The roles that are assigned to a security principal determine the permissions that that principal will have. Azure Storage provides Azure roles that encompass common sets of permissions for table data. The authorization step requires that one or more Azure roles be assigned to the security principal. To learn how to authorize requests made by a managed identity, see Authorize access to table data with managed identities for Azure resources. If an application is running from within an Azure entity such as an Azure VM, a virtual machine scale set, or an Azure Functions app, it can use a managed identity to access tables. The authentication step requires that an application request an OAuth 2.0 access token at runtime. Next, the token is passed as part of a request to the Table service and used by the service to authorize access to the specified resource. First, the security principal's identity is authenticated and an OAuth 2.0 token is returned. With Azure AD, access to a resource is a two-step process. ![]() ![]() When a security principal (a user, group, or application) attempts to access a table resource, the request must be authorized. See the Supplemental Terms of Use for Microsoft Azure Previews for legal terms that apply to Azure features that are in beta, preview, or otherwise not yet released into general availability. Authorization with Azure AD for tables is currently in PREVIEW.
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