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Overview

Grafana Loki is a log aggregation system designed to store and query logs from all your applications and infrastructure. The easiest way to get started is with Grafana Cloud, our fully composable observability stack.

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Authentication Parameters

The Grafana Loki provider requires the following authentication parameters:

  • Grafana Loki Host URL: The URL of the Grafana Loki instance.
  • Authentication Type : The type of authentication to use. Supported values are NoAuth, Basic, and X-Scope-OrgID.

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NoAuth

  • No additional parameters are required, only the Grafana Loki Host URL is required.

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HTTP basic authentication

  • HTTP basic authentication - Username: The username to use for HTTP basic authentication.
  • HTTP basic authentication - Password: The password to use for HTTP basic authentication.

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X-Scope-OrgID

  • X-Scope-OrgID: The organization ID to use for Grafana Loki Multi-tenancy support.

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Connecting with the Grafana Loki provider

  1. Obtain the required authentication parameters.
  2. Add Grafana Loki provider to your keep account and configure with the above authentication parameters.

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Querying Grafana Loki

The Grafana Loki provider allows you to query logs from Grafana Loki through the query and query_range types. The following are the parameters available for querying:

  1. query type:

    • query: The LogQL query to perform. Requests that do not use valid LogQL syntax will return errors.
    • limit: The max number of entries to return. It defaults to 100. Only applies to query types which produce a stream (log lines) response.
    • time: The evaluation time for the query as a nanosecond Unix epoch or another supported format. Defaults to now.
    • direction: Determines the sort order of logs. Supported values are forward or backward. Defaults to backward.

  2. query_range type:

    • query: The LogQL query to perform.
    • limit: The max number of entries to return. It defaults to 100. Only applies to query types which produce a stream (log lines) response.
    • start: The start time for the query as a nanosecond Unix epoch or another supported format. Defaults to one hour ago. Loki returns results with timestamp greater or equal to this value.
    • end: The end time for the query as a nanosecond Unix epoch or another supported format. Defaults to now. Loki returns results with timestamp lower than this value.
    • since: A duration used to calculate start relative to end. If end is in the future, start is calculated as this duration before now. Any value specified for start supersedes this parameter.
    • step: Query resolution step width in duration format or float number of seconds. duration refers to Prometheus duration strings of the form [0-9]+[smhdwy]. For example, 5m refers to a duration of 5 minutes. Defaults to a dynamic value based on start and end. Only applies to query types which produce a matrix response.
    • interval: Only return entries at (or greater than) the specified interval, can be a duration format or float number of seconds. Only applies to queries which produce a stream response. Not to be confused with step, see the explanation under Step versus interval.
    • direction: Determines the sort order of logs. Supported values are forward or backward. Defaults to backward.
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