[v10.1.x] Update all links that have destinations outside of /docs/grafana/latest/datasources/ to use shortcode (#72625)
Update all links that have destinations outside of /docs/grafana/latest/datasources/ to use `docs/reference` shortcode (#72051)
* Update all links that have destinations outside of /docs/grafana/latest/datasources/ to use docs/reference shortcode
* Fix typo
* Prettier
---------
(cherry picked from commit 2b14b2d564)
Signed-off-by: Jack Baldry <jack.baldry@grafana.com>
This commit is contained in:
Jack Baldry
GitHub
@@ -34,11 +34,11 @@ The following guides will help you get started with Loki:
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## Adding a data source
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For instructions on how to add a data source to Grafana, refer to the [administration documentation]({{< relref "../../administration/data-source-management/" >}}).
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For instructions on how to add a data source to Grafana, refer to the [administration documentation][data-source-management]
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Only users with the organization administrator role can add data sources.
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Administrators can also [configure the data source via YAML]({{< relref "#provision-the-data-source" >}}) with Grafana's provisioning system.
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Administrators can also [configure the data source via YAML](#provision-the-data-source) with Grafana's provisioning system.
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Once you've added the Loki data source, you can [configure it]({{< relref "#configure-the-data-source" >}}) so that your Grafana instance's users can create queries in its [query editor]({{< relref "./query-editor/" >}}) when they [build dashboards]({{< relref "../../dashboards/build-dashboards/" >}}), use [Explore]({{< relref "../../explore/" >}}), and [annotate visualizations]({{< relref "./query-editor/#apply-annotations" >}}).
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Once you've added the Loki data source, you can [configure it](#configure-the-data-source) so that your Grafana instance's users can create queries in its [query editor]({{< relref "./query-editor" >}}) when they [build dashboards][build-dashboards], use [Explore][explore], and [annotate visualizations]({{< relref "./query-editor#apply-annotations" >}}).
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{{% admonition type="note" %}}
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To troubleshoot configuration and other issues, check the log file located at `/var/log/grafana/grafana.log` on Unix systems, or in `<grafana_install_dir>/data/log` on other platforms and manual installations.
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@@ -47,7 +47,7 @@ To troubleshoot configuration and other issues, check the log file located at `/
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## Provision the Loki data source
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You can define and configure the data source in YAML files as part of Grafana's provisioning system.
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For more information about provisioning, and for available configuration options, refer to [Provisioning Grafana]({{< relref "../../administration/provisioning/#data-sources" >}}).
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For more information about provisioning, and for available configuration options, refer to [Provisioning Grafana][provisioning-data-sources].
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### Provisioning examples
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@@ -116,7 +116,7 @@ datasources:
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The Loki data source's query editor helps you create log and metric queries that use Loki's query language, [LogQL](/docs/loki/latest/logql/).
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For details, refer to the [query editor documentation]({{< relref "./query-editor/" >}}).
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For details, refer to the [query editor documentation]({{< relref "./query-editor" >}}).
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## Use template variables
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@@ -124,4 +124,21 @@ Instead of hard-coding details such as server, application, and sensor names in
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Grafana lists these variables in dropdown select boxes at the top of the dashboard to help you change the data displayed in your dashboard.
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Grafana refers to such variables as template variables.
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For details, see the [template variables documentation]({{< relref "./template-variables/" >}}).
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For details, see the [template variables documentation]({{< relref "./template-variables" >}}).
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{{% docs/reference %}}
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[build-dashboards]: "/docs/grafana/ -> /docs/grafana/<GRAFANA VERSION>/dashboards/build-dashboards"
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[build-dashboards]: "/docs/grafana-cloud/ -> /docs/grafana/<GRAFANA VERSION>/dashboards/build-dashboards"
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[data-source-management]: "/docs/grafana/ -> /docs/grafana/<GRAFANA VERSION>/administration/data-source-management"
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[data-source-management]: "/docs/grafana-cloud/ -> /docs/grafana/<GRAFANA VERSION>/administration/data-source-management"
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[explore]: "/docs/grafana/ -> /docs/grafana/<GRAFANA VERSION>/explore"
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[explore]: "/docs/grafana-cloud/ -> /docs/grafana/<GRAFANA VERSION>/explore"
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[logs-integration-labels-and-detected-fields]: "/docs/grafana/ -> /docs/grafana/<GRAFANA VERSION>/explore/logs-integration#labels-and-detected-fields"
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[logs-integration-labels-and-detected-fields]: "/docs/grafana-cloud/ -> /docs/grafana/<GRAFANA VERSION>/explore/logs-integration#labels-and-detected-fields"
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[provisioning-data-sources]: "/docs/grafana/ -> /docs/grafana/<GRAFANA VERSION>/administration/provisioning#data-sources"
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[provisioning-data-sources]: "/docs/grafana-cloud/ -> /docs/grafana/<GRAFANA VERSION>/administration/provisioning#data-sources"
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{{% /docs/reference %}}
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@@ -19,30 +19,30 @@ weight: 300
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# Loki query editor
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The Loki data source's query editor helps you create [log]({{< relref "#create-a-log-query" >}}) and [metric]({{< relref "#create-a-metric-query" >}}) queries that use Loki's query language, [LogQL](/docs/loki/latest/logql/).
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The Loki data source's query editor helps you create [log](#create-a-log-query) and [metric](#create-a-metric-query) queries that use Loki's query language, [LogQL](/docs/loki/latest/logql/).
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For general documentation on querying data sources in Grafana, see [Query and transform data]({{< relref "../../../panels-visualizations/query-transform-data" >}}).
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For general documentation on querying data sources in Grafana, refer to [Query and transform data][query-transform-data].
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## Choose a query editing mode
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The Loki query editor has two modes:
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- [Builder mode]({{< relref "#builder-mode" >}}), which provides a visual query designer.
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- [Code mode]({{< relref "#code-mode" >}}), which provides a feature-rich editor for writing queries.
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- [Builder mode](#builder-mode), which provides a visual query designer.
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- [Code mode](#code-mode), which provides a feature-rich editor for writing queries.
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To switch between the editor modes, select the corresponding **Builder** and **Code** tabs.
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To run a query, select **Run queries** located at the top of the editor.
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{{% admonition type="note" %}}
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To run Loki queries in [Explore]({{< relref "../../../explore/" >}}), select **Run query**.
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To run Loki queries in [Explore][explore], select **Run query**.
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{{% /admonition %}}
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Each mode is synchronized, so you can switch between them without losing your work, although there are some limitations. Builder mode doesn't support some complex queries.
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When you switch from Code mode to Builder mode with such a query, the editor displays a warning message that explains how you might lose parts of the query if you continue.
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You can then decide whether you still want to switch to Builder mode.
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You can also augment queries by using [template variables]({{< relref "./template-variables/" >}}).
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You can also augment queries by using [template variables]({{< relref "./template-variables" >}}).
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## Toolbar elements
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@@ -129,7 +129,7 @@ In same cases the query editor can detect which operations would be most appropr
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## Code mode
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In **Code mode**, you can write complex queries using a text editor with autocompletion feature, syntax highlighting, and query validation.
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It also contains a [label browser]({{< relref "#label-browser" >}}) to further help you write queries.
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It also contains a [label browser](#label-browser) to further help you write queries.
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For more information about Loki's query language, refer to the [Loki documentation](/docs/loki/latest/logql/).
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@@ -157,7 +157,7 @@ The following options are the same for both **Builder** and **Code** mode:
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## Create a log query
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Loki log queries return the contents of the log lines.
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You can query and display log data from Loki via [Explore]({{< relref "../../../explore" >}}), and with the [Logs panel]({{< relref "../../../panels-visualizations/visualizations/logs" >}}) in dashboards.
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You can query and display log data from Loki via [Explore][explore], and with the [Logs panel][logs] in dashboards.
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To display the results of a log query, select the Loki data source, then enter a LogQL query.
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@@ -175,7 +175,7 @@ To reset filters and use the initial log context query, click the `Revert to ini
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### Tail live logs
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Loki supports live tailing of logs in real-time in [Explore]({{< relref "../../../explore" >}}).
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Loki supports live tailing of logs in real-time in [Explore][explore].
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Live tailing relies on two Websocket connections: one between the browser and Grafana server, and another between the Grafana server and Loki server.
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@@ -241,9 +241,23 @@ For more information about metric queries, refer to the [Loki metric queries doc
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## Apply annotations
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[Annotations]({{< relref "../../../dashboards/build-dashboards/annotate-visualizations" >}}) overlay rich event information on top of graphs.
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[Annotations][annotate-visualizations] overlay rich event information on top of graphs.
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You can add annotation queries in the Dashboard menu's Annotations view.
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You can use any non-metric Loki query as a source for annotations.
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Grafana automatically uses log content as annotation text and your log stream labels as tags.
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You don't need to create any additional mapping.
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{{% docs/reference %}}
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[annotate-visualizations]: "/docs/grafana/ -> /docs/grafana/<GRAFANA VERSION>/dashboards/build-dashboards/annotate-visualizations"
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[annotate-visualizations]: "/docs/grafana-cloud/ -> /docs/grafana/<GRAFANA VERSION>/dashboards/build-dashboards/annotate-visualizations"
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[explore]: "/docs/grafana/ -> /docs/grafana/<GRAFANA VERSION>/explore"
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[explore]: "/docs/grafana-cloud/ -> /docs/grafana/<GRAFANA VERSION>/explore"
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[logs]: "/docs/grafana/ -> /docs/grafana/<GRAFANA VERSION>/panels-visualizations/visualizations/logs"
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[logs]: "/docs/grafana-cloud/ -> /docs/grafana/<GRAFANA VERSION>/panels-visualizations/visualizations/logs"
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[query-transform-data]: "/docs/grafana/ -> /docs/grafana/<GRAFANA VERSION>/panels-visualizations/query-transform-data"
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[query-transform-data]: "/docs/grafana-cloud/ -> /docs/grafana/<GRAFANA VERSION>/panels-visualizations/query-transform-data"
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{{% /docs/reference %}}
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@@ -25,7 +25,7 @@ Instead of hard-coding details such as server, application, and sensor names in
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Grafana lists these variables in dropdown select boxes at the top of the dashboard to help you change the data displayed in your dashboard.
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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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For an introduction to templating and template variables, refer to the [Templating][variables] and [Add and manage variables][add-template-variables] documentation.
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## Use query variables
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@@ -45,10 +45,50 @@ The form has these options:
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Loki supports the special **Ad hoc filters** variable type.
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You can use this variable type to specify any number of key/value filters, and Grafana applies them automatically to all of your Loki queries.
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For more information, refer to [Add ad hoc filters]({{< relref "../../../dashboards/variables/add-template-variables#add-ad-hoc-filters" >}}).
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For more information, refer to [Add ad hoc filters][add-template-variables-add-ad-hoc-filters].
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## Use interval and range variables
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You can use some global built-in variables in query variables: `$__interval`, `$__interval_ms`, `$__range`, `$__range_s`, and `$__range_ms`.
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For more information, refer to [Global built-in variables]({{< relref "../../../dashboards/variables/add-template-variables#global-variables" >}}).
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For more information, refer to [Global built-in variables][add-template-variables-global-variables].
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### Label Extraction and Indexing in Loki:
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Labels play a fundamental role in Loki's log aggregation and querying capabilities. When logs are ingested into Loki, they are often accompanied by metadata called labels, which provide contextual information about the log entries. These labels consist of key-value pairs and are essential for organizing, filtering, and searching log data efficiently.
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#### 1. Label Extraction:
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During the ingestion process, Loki performs label extraction from the log lines. Loki's approach to label extraction is based on regular expressions, allowing users to specify custom patterns for parsing log lines and extracting relevant label key-value pairs. This flexibility enables Loki to adapt to various log formats and schemas.
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For example, suppose you have log lines in the following format:
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**2023-07-25 12:34:56 INFO: Request from IP A.B.C.D to endpoint /api/data**
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To extract labels from this log format, you could define a regular expression to extract the log level ("INFO"), IP address ("A.B.C.D"), and endpoint ("/api/data") as labels. These labels can later be used to filter and aggregate log entries.
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#### 2. Indexing Labels:
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Once labels are extracted, Loki efficiently indexes them. The index serves as a lookup mechanism that maps labels to the corresponding log entries. This indexing process enables faster retrieval of logs based on specific label criteria, significantly enhancing query performance.
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For instance, if you have a label "job" that represents different services in your application, Loki will index the logs for each job separately. This indexing allows you to quickly query and analyze logs for individual jobs without the need to scan the entire log dataset.
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By effectively extracting and indexing labels, Loki enables users to perform complex and targeted log queries without compromising on query speed and resource consumption.
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Utilizing Loki's indexed labels in combination with Grafana's template variables provides a powerful way to interactively explore and visualize log data. Template variables allow users to create dynamic queries, selecting and filtering logs based on various labels, such as job names, instance IDs, severity levels, or any other contextual information attached to the log entries.
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In conclusion, Loki's label extraction and indexing mechanisms are key components that contribute to its ability to handle vast amounts of log data efficiently. By making use of labels and template variables, users can easily gain valuable insights from their log data and troubleshoot issues effectively.
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{{% docs/reference %}}
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[add-template-variables-add-ad-hoc-filters]: "/docs/grafana/ -> /docs/grafana/<GRAFANA VERSION>/dashboards/variables/add-template-variables#add-ad-hoc-filters"
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[add-template-variables-add-ad-hoc-filters]: "/docs/grafana-cloud/ -> /docs/grafana/<GRAFANA VERSION>/dashboards/variables/add-template-variables#add-ad-hoc-filters"
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[add-template-variables-global-variables]: "/docs/grafana/ -> /docs/grafana/<GRAFANA VERSION>/dashboards/variables/add-template-variables#global-variables"
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[add-template-variables-global-variables]: "/docs/grafana-cloud/ -> /docs/grafana/<GRAFANA VERSION>/dashboards/variables/add-template-variables#global-variables"
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[add-template-variables]: "/docs/grafana/ -> /docs/grafana/<GRAFANA VERSION>/dashboards/variables/add-template-variables"
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[add-template-variables]: "/docs/grafana-cloud/ -> /docs/grafana/<GRAFANA VERSION>/dashboards/variables/add-template-variables"
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[variables]: "/docs/grafana/ -> /docs/grafana/<GRAFANA VERSION>/dashboards/variables"
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[variables]: "/docs/grafana-cloud/ -> /docs/grafana/<GRAFANA VERSION>/dashboards/variables"
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{{% /docs/reference %}}
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