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// roles/azure · storage

Reader and Data AccessAzure built-in role

Lets you view everything but will not let you delete or create a storage account or contained resource. It will also allow read/write access to all data contained in a storage account via access to storage account keys.

Role IDc12c1c16-33a1-487b-954d-41c89c60f349
CategoryStorage
Actions3
Data actions0

What it can do

PermissionWhat it allows
Microsoft.Storage/storageAccounts/listKeys/actionReturns the access keys for the specified storage account.
Microsoft.Storage/storageAccounts/ListAccountSas/actionReturns the Account SAS token for the specified storage account.
Microsoft.Storage/storageAccounts/readReturns the list of storage accounts or gets the properties for the specified storage account.

Assign it

Scope it as tightly as you can: a resource or resource group rather than the whole subscription.

azure cli
az role assignment create \
  --assignee "jane.doe@contoso.com" \
  --role "Reader and Data Access" \
  --scope "/subscriptions/<subscription id>/resourceGroups/<resource group>"
powershell3 lines
New-AzRoleAssignment -SignInName "jane.doe@contoso.com" `
  -RoleDefinitionName "Reader and Data Access" `
  -Scope "/subscriptions/<subscription id>/resourceGroups/<resource group>"
bicep7 lines
resource assignment 'Microsoft.Authorization/roleAssignments@2022-04-01' = {
  name: guid(resourceGroup().id, principalId, 'c12c1c16-33a1-487b-954d-41c89c60f349')
  properties: {
    roleDefinitionId: subscriptionResourceId('Microsoft.Authorization/roleDefinitions', 'c12c1c16-33a1-487b-954d-41c89c60f349')
    principalId: principalId
  }
}

Who already has it?

kql · azure resource graph
authorizationresources
| where type == "microsoft.authorization/roleassignments"
| where tostring(properties.roleDefinitionId) endswith "c12c1c16-33a1-487b-954d-41c89c60f349"
| project principalId = tostring(properties.principalId), principalType = tostring(properties.principalType), scope = tostring(properties.scope)

Other storage roles

Find the smallest role for a task →

Sources