Loki: Add more details about usage reporting to the docs and default config files. (#5767)

* Add more details to usage reporting including putting it in our default config files

Signed-off-by: Ed Welch <edward.welch@grafana.com>

* Update docs/sources/configuration/_index.md

Co-authored-by: Karen Miller <84039272+KMiller-Grafana@users.noreply.github.com>

* update verbiage

Signed-off-by: Ed Welch <edward.welch@grafana.com>

* add newlines

Signed-off-by: Ed Welch <edward.welch@grafana.com>

Co-authored-by: Karen Miller <84039272+KMiller-Grafana@users.noreply.github.com>

cmd/loki/loki-docker-config.yaml

@@ -26,3 +26,16 @@ schema_config:
 
 ruler:
   alertmanager_url: http://localhost:9093
+
+# By default, Loki will send anonymous, but uniquely-identifiable usage and configuration
+# analytics to Grafana Labs. These statistics are sent to https://stats.grafana.org/
+#
+# Statistics help us better understand how Loki is used, and they show us performance
+# levels for most users. This helps us prioritize features and documentation.
+# For more information on what's sent, look at
+# https://github.com/grafana/loki/blob/main/pkg/usagestats/stats.go
+# Refer to the buildReport method to see what goes into a report.
+#
+# If you would like to disable reporting, uncomment the following lines:
+#analytics:
+#  reporting_enabled: false

cmd/loki/loki-local-config.yaml

@@ -28,3 +28,16 @@ schema_config:
 
 ruler:
   alertmanager_url: http://localhost:9093
+
+# By default, Loki will send anonymous, but uniquely-identifiable usage and configuration
+# analytics to Grafana Labs. These statistics are sent to https://stats.grafana.org/
+#
+# Statistics help us better understand how Loki is used, and they show us performance
+# levels for most users. This helps us prioritize features and documentation.
+# For more information on what's sent, look at
+# https://github.com/grafana/loki/blob/main/pkg/usagestats/stats.go
+# Refer to the buildReport method to see what goes into a report.
+#
+# If you would like to disable reporting, uncomment the following lines:
+#analytics:
+#  reporting_enabled: false

docs/sources/configuration/_index.md

@@ -2513,6 +2513,15 @@ This way, one doesn't have to replicate configuration in multiple places.
 The `analytics` block configures the reporting of Loki analytics to grafana.com
 
 ```yaml
+# By default, Loki will send anonymous, but uniquely-identifiable usage and configuration
+# analytics to Grafana Labs. These statistics are sent to https://stats.grafana.org/
+#
+# Statistics help us better understand how Loki is used, and they show us performance
+# levels for most users. This helps us prioritize features and documentation.
+# For more information on what's sent, look at
+# https://github.com/grafana/loki/blob/main/pkg/usagestats/stats.go
+# Refer to the buildReport method to see what goes into a report.
+#
 # When true, enables usage reporting.
 # CLI flag: -reporting.enabled
 [reporting_enabled: <boolean>: default = true]