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// roles/azure · monitor

Log Analytics Data ReaderAzure built-in role

Log Analytics Data Reader can query and search the logs it is allowed to view over Log Analytics workspaces and tables

Role ID3b03c2da-16b3-4a49-8834-0f8130efdd3b
CategoryMonitor
Actions2
Data actions1

Before you assign it

  • It reaches the data, not just the resource. It has 1 data action, such as reading blobs, secrets or messages.

What it can do

PermissionWhat it allows
Microsoft.OperationalInsights/workspaces/query/readRun queries over the data in the workspace
Microsoft.OperationalInsights/workspaces/readGets an existing workspace

Data actions

PermissionWhat it allows
Microsoft.OperationalInsights/workspaces/tables/data/readAllows you to provide read data access to workspaces, or more fine-grained data entities, such as specific tables or rows.

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 "Log Analytics Data Reader" \
  --scope "/subscriptions/<subscription id>/resourceGroups/<resource group>"
powershell3 lines
New-AzRoleAssignment -SignInName "jane.doe@contoso.com" `
  -RoleDefinitionName "Log Analytics Data Reader" `
  -Scope "/subscriptions/<subscription id>/resourceGroups/<resource group>"
bicep7 lines
resource assignment 'Microsoft.Authorization/roleAssignments@2022-04-01' = {
  name: guid(resourceGroup().id, principalId, '3b03c2da-16b3-4a49-8834-0f8130efdd3b')
  properties: {
    roleDefinitionId: subscriptionResourceId('Microsoft.Authorization/roleDefinitions', '3b03c2da-16b3-4a49-8834-0f8130efdd3b')
    principalId: principalId
  }
}

Who already has it?

kql · azure resource graph
authorizationresources
| where type == "microsoft.authorization/roleassignments"
| where tostring(properties.roleDefinitionId) endswith "3b03c2da-16b3-4a49-8834-0f8130efdd3b"
| project principalId = tostring(properties.principalId), principalType = tostring(properties.principalType), scope = tostring(properties.scope)

Other monitor roles

Find the smallest role for a task →

Sources