How to Add A Custom Value In Grafana Legend?

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To add a custom value in Grafana Legend, follow these steps:

  1. Open the Grafana dashboard with the panel you want to modify.
  2. Click on the panel title to open the settings menu.
  3. Select "Edit" or the pen icon to enter the editing mode for the panel.
  4. In the panel editing mode, navigate to the "Display" tab.
  5. Scroll down to the "Legend" section within the "Display" tab.
  6. In the "Legend" section, locate the "Override" checkbox and enable it.
  7. After enabling the override, an additional input field will appear labeled "Override legend values".
  8. In the "Override legend values" field, enter the desired custom value using the specified format.
  9. Save or apply the changes to see the custom value reflected in the Grafana Legend.


Note that the custom value should match the metric query used in the panel, and the format may vary depending on the data source and the specific metric being used. Ensure the custom value is correctly formatted to avoid any errors or display issues in the legend.

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Can I add a custom value in Grafana Legend for a specific time range?

Yes, it is possible to add a custom value in Grafana's legend for a specific time range. You can achieve this by using the "Overrides" feature in Grafana.


To add a custom value in the legend for a specific time range, follow these steps:

  1. Open the Grafana dashboard, select the panel where you want to add the custom legend value.
  2. Click on the panel title bar to open the panel options.
  3. In the "Overrides" tab, click on the "Add Override" button.
  4. In the "For" field, select the time range for which you want to add the custom legend value.
  5. In the "Legend format" field, enter the custom value you want to display in the legend for the selected time range.
  6. Click on the "Save" button to apply the override.


Now, whenever the time range matches the one you specified in the override, the legend for the panel will display the custom value instead of the default legend value.


How do I add a custom value that updates dynamically based on real-time data in Grafana Legend?

To add a custom value that updates dynamically in the Grafana legend based on real-time data, you can utilize the "Override by Field" functionality in Grafana.


Here is a step-by-step guide:

  1. Create a new panel or navigate to an existing panel in Grafana.
  2. Select the panel you want to add the custom value to, and click on the "Edit" button (represented by a pencil icon).
  3. In the panel editor, scroll down to the "Legend" section.
  4. Under the "Legend Display" options, select the "Override by Field" checkbox.
  5. A new field will appear where you can enter the dynamic value for the legend.
  6. To populate this field dynamically, you need to specify a data field from your query results. You can either type the name of the field manually or click on the "Insert Field" button to select it from a dropdown list.
  7. Once the field is selected, Grafana will auto-generate a preview of the dynamic legend value based on the latest data.
  8. Click on the "Apply" or "Save" button to save your changes and see the legend with the updated value.


By using this approach, the legend value will continuously update based on the real-time data received by Grafana.


Note: This feature might differ slightly depending on the version of Grafana you are using, but the general steps should remain the same.


How do I change the font size of the custom value in Grafana Legend?

To change the font size of the custom value in Grafana Legend, you can follow these steps:

  1. Open your Grafana dashboard and go to the panel where you want to change the font size of the custom value in the legend.
  2. Click on the panel title to open the panel options menu.
  3. From the panel options menu, select "Edit".
  4. In the panel editor, scroll down to the "Legend" section.
  5. Within the "Legend" section, you will find an option called "Custom". Click on the "Custom" field to enter the custom value for the legend.
  6. To change the font size of the custom value in the legend, you can use HTML tags for styling. For example, you can wrap the custom value with a tag and define the font size using the style attribute. Here's an example of how you can change the font size to 14 pixels: Custom ValueYou can adjust the font size value according to your preference.
  7. After making the changes, click on "Apply" or "Save" to save the panel configuration.
  8. Finally, return to the dashboard view to see the updated legend with the new font size for the custom value.


How can I make the custom value appear as a clickable link in Grafana Legend?

To make the custom value appear as a clickable link in Grafana Legend, you can use the HTML formatting options available in Grafana. Follow these steps:

  1. Click on the panel title and select "Edit" to open the panel editor.
  2. In the panel editor, go to the "Legend" tab.
  3. In the "Legend format" field, you can specify a custom format for the legend using HTML tags.
  4. To create a clickable link, use the HTML tag with the href attribute pointing to the desired URL. For example, Click here will create a clickable link with the text "Click here" that directs to the URL "https://example.com".
  5. Save the changes to the panel and exit the panel editor.
  6. Refresh the dashboard to see the legend with the clickable link.


By using HTML formatting options, you can add various other styles, such as font color, bold, italic, etc., to enhance the appearance of the legend value.


How do I add a custom value in Grafana Legend for a specific time interval?

To add a custom value in Grafana Legend for a specific time interval, you can make use of the Annotations feature in Grafana. Annotations allow you to add custom data points to your graphs and legends.


Here is how you can add a custom value for a specific time interval:

  1. In Grafana, go to the Dashboards section and open the desired dashboard.
  2. Click on the Graph panel to select it or add a new graph panel to the dashboard.
  3. Configure your graph panel by selecting the data source, time range, and visualization options.
  4. Click on the "Annotations" tab on the top menu of the graph panel.
  5. Click on the "New Annotation" button to create a new annotation.
  6. In the "Tags" section, you can specify the tags associated with the annotation. For example, you can specify a tag like "custom-value".
  7. In the "Text" section, enter the custom value or description you want to display in the graph legend for the specific time interval.
  8. In the "Time" section, select the start and end time for the specific interval when you want the custom value to be displayed.
  9. Click on the "Add" button to add the annotation.
  10. Save the dashboard.


Now, when you view the graph panel, the custom value will be displayed in the legend for the specified time interval.


Note: Make sure that the legend is enabled and visible in your graph panel settings. You can configure the legend position and format in the "Legend" tab of the graph panel settings.


Is it possible to add a custom value that includes a tooltip or additional information in Grafana Legend?

Yes, it is possible to add a custom value with a tooltip or additional information in Grafana Legend. By using the "alias" option in the query editor, you can define a custom value for each metric.


To include additional information or a tooltip, you can use Markdown in the alias field. For example, you can add a description or any other relevant information using Markdown syntax like bold, italic, bullet points, etc.


Here's an example of how to add a custom value with a tooltip in Grafana Legend:

  1. Open the query editor for the metric you want to customize the legend for.
  2. In the "Alias" field, enter a custom value along with Markdown syntax for the tooltip or additional information. For example, you can use the following format: Metric Name|Tooltip or Additional Information You can also use other Markdown syntax as needed.
  3. Save the query, and the custom value with the tooltip will be displayed in the Grafana Legend.


By using this approach, you can customize the legend in Grafana and provide additional information or tooltips for each metric.

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