mirror of
https://github.com/grafana/grafana.git
synced 2025-07-29 18:32:39 +08:00
a13a9e2ef6
* Create add-data-source-variable.md * Update templates-and-variables.md * Update menu.yaml * Update add-interval-variable.md * Update menu.yaml * Update templates-and-variables.md * Update add-interval-variable.md * Update add-interval-variable.md * ad hoc filters * Update templates-and-variables.md * Update templates-and-variables.md * Update add-ad-hoc-filters.md
31 lines
1.8 KiB
Markdown
31 lines
1.8 KiB
Markdown
+++
|
|
title = "Add a data source variable"
|
|
type = "docs"
|
|
[menu.docs]
|
|
weight = 500
|
|
+++
|
|
|
|
# Add a data source variable
|
|
|
|
_Data source_ variables allow you to quickly change the data source for an entire dashboard. They are useful if you have multiple instances of a data source, perhaps in different environments.
|
|
|
|
## Enter General options
|
|
|
|
1. Navigate to the dashboard you want to make a variable for and then click the **Dashboard settings** (gear) icon at the top of the page.
|
|
1. On the Variables tab, click **New**.
|
|
1. Enter a **Name** for your variable.
|
|
1. In the **Type** list, select **Datasource**.
|
|
1. (optional) In **Label**, enter the display name of the variable dropdown. If you don't enter a display name, then the dropdown label will be the variable name.
|
|
1. Choose a **Hide** option:
|
|
- **No selection (blank) -** The variable dropdown displays the variable **Name** or **Label** value. This is the default.
|
|
- **Label -** The variable dropdown only displays the selected variable value and a down arrow.
|
|
- **Variable -** No variable dropdown is displayed on the dashboard.
|
|
|
|
## Enter Data source options
|
|
|
|
1. In the **Type** list, select the target data source for the variable. For more information about data sources, refer to [Add a data source]({{< relref "../features/datasources/add-a-data-source.md" >}}).
|
|
1. (optional) In **Instance name filter**, enter a regex filter for which data source instances to choose from in the variable value drop-down list. Leave this field empty to display all instances.
|
|
1. (optional) Enter [Selection Options]({{< relref "variable-selection-options.md" >}}).
|
|
1. In **Preview of values**, Grafana displays a list of the current variable values. Review them to ensure they match what you expect.
|
|
1. Click **Add** to add the variable to the dashboard.
|