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68 lines
3.5 KiB
Markdown
68 lines
3.5 KiB
Markdown
---
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aliases:
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- ../../data-sources/azure-monitor/template-variables/
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- ../azuremonitor/template-variables/
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description: Using template variables with Azure Monitor in Grafana
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keywords:
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- grafana
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- microsoft
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- azure
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- monitor
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- application
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- insights
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- log
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- analytics
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- templates
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- variables
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- queries
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menuTitle: Template variables
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title: Azure Monitor template variables
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weight: 400
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---
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# Azure Monitor template variables
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Instead of hard-coding details such as resource group or resource name values in metric queries, you can use variables.
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This helps you create more interactive, dynamic, and reusable dashboards.
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Grafana refers to such variables as template variables.
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For an introduction to templating and template variables, refer to the [Templating]({{< relref "../../../dashboards/variables" >}}) and [Add and manage variables]({{< relref "../../../dashboards/variables/add-template-variables" >}}) documentation.
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## Use query variables
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You can specify these Azure Monitor data source queries in the Variable edit view's **Query Type** field.
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| Name | Description |
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| ------------------- | -------------------------------------------------------------------------------------------- |
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| **Subscriptions** | Returns subscriptions. |
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| **Resource Groups** | Returns resource groups for a specified subscription. |
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| **Namespaces** | Returns metric namespaces for the specified subscription and resource group. |
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| **Resource Names** | Returns a list of resource names for a specified subscription, resource group and namespace. |
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| **Metric Names** | Returns a list of metric names for a resource. |
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| **Workspaces** | Returns a list of workspaces for the specified subscription. |
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| **Logs** | Use a KQL query to return values. |
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| **Resource Graph** | Use an ARG query to return values. |
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Any Log Analytics Kusto Query Language (KQL) query that returns a single list of values can also be used in the Query field.
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For example:
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| Query | List of values returned |
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| ----------------------------------------------------------------------------------------- | --------------------------------------- |
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| `workspace("myWorkspace").Heartbeat \| distinct Computer` | Virtual machines |
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| `workspace("$workspace").Heartbeat \| distinct Computer` | Virtual machines with template variable |
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| `workspace("$workspace").Perf \| distinct ObjectName` | Objects from the Perf table |
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| `workspace("$workspace").Perf \| where ObjectName == "$object"` `\| distinct CounterName` | Metric names from the Perf table |
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### Query variable example
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This time series query uses query variables:
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```kusto
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Perf
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| where ObjectName == "$object" and CounterName == "$metric"
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| where TimeGenerated >= $__timeFrom() and TimeGenerated <= $__timeTo()
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| where $__contains(Computer, $computer)
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| summarize avg(CounterValue) by bin(TimeGenerated, $__interval), Computer
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| order by TimeGenerated asc
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```
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