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The OpenSearch Grafana Data Source plugin integrates logs from OpenSearch Dashboards into Grafana, providing a consolidated view of all metrics in one place alongside Grafana’s advanced alerting and visualization features. It also enables granular access control over who can view and manage logs, protecting sensitive information.

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Step 1. Set up Managed Logging in the Gcore Customer Portal

Configure Managed Logging in the Gcore Customer Portal to obtain the OpenSearch API endpoint URL and credentials needed in later steps. For details, see Configure Managed Logging and view logs.

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Step 2. Install OpenSearch plugin in Grafana

If the plugin is already installed, skip to Step 3. To install the plugin: 1. In Grafana, navigate to the Administration section and click Plugins. 2. Search for the OpenSearch plugin. In the State dropdown, select All to ensure the plugin appears in the results. 3. Click Install.
Plugins page in Grafana featuring OpenSearch plugin
The installation may take a few minutes.

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Step 3. Configure the OpenSearch plugin to display logs in Grafana

1. Open the plugin in Grafana. 2. In the top-right corner of the screen, click Add new data source.
OpenSearch plugin overview in Grafana
3. Configure the HTTP parameters:
  • URL: Enter the OpenSearch API endpoint URL. The URL is available in the Gcore Customer Portal on the Managed Logging page.
  • Access: Server (default) makes the URL accessible from the Grafana backend. Browser makes it accessible from the browser.
  • Allowed cookies: Specify which cookies are allowed in requests to the OpenSearch endpoint.
  • Timeout: Set the maximum time to wait for a response from OpenSearch before Grafana terminates the connection.
HTTP settings of the OpenSearch plugin in Grafana
4. Configure authentication. Select Basic auth and enter the credentials configured on the Managed Logging page in the Gcore Customer Portal.
Authentication settings of the OpenSearch plugin in Grafana
After selecting Basic auth, the following error may appear: “OpenSearch error: no permissions for [indices:admin/mappings/get] and User [name=test2, backend_roles=[], requestedTenant=null]”. This is a mapping-fetch error that does not affect data retrieval or plugin functionality — ignore it and continue.
5. Click Save & test.

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Step 4. View logs in Grafana

To create a dashboard and display log data, follow the steps below. For more details on dashboards, see the official Grafana documentation. To display logs on a new Grafana dashboard, complete the following steps: 1. In the sidebar, click Dashboards. 2. In the top-right corner of the screen, click New > New dashboard.
Dashboards page in Grafana with the new dashboard button highlighted
3. Click Add visualization.
Grafana dashboard with the Add visualization button highlighted
4. Search for the grafana-opensearch-datasource plugin and click the plugin name to add data to the dashboard. The log data from Managed Logging now appears on the Grafana dashboard.