Docs: Add 'tenant_id' for Loki clients (Auditing & Analytics) (#63098)

* Docs: Add 'tenant_id' for Loki clients (Auditing & Analytics)

* Apply suggestions from code review

Co-authored-by: Christopher Moyer <35463610+chri2547@users.noreply.github.com>

* Apply suggestions from code review

Co-authored-by: Mitch Seaman <mjseaman@users.noreply.github.com>

---------

Co-authored-by: Christopher Moyer <35463610+chri2547@users.noreply.github.com>
Co-authored-by: Mitch Seaman <mjseaman@users.noreply.github.com>

docs/sources/setup-grafana/configure-grafana/enterprise-configuration/index.md

@@ -102,6 +102,10 @@ Set the address for writing logs to Loki (format must be host:port).
 
 Decide whether or not to enable the TLS (Transport Layer Security) protocol when establishing the connection to Loki. Defaults to true.
 
+### tenant_id
+
+Set the tenant ID for Loki communication, which is disabled by default. The tenant ID is required to interact with Loki running in [multi-tenant mode](/docs/loki/latest/operations/multi-tenancy/).
+
 ## [analytics.summaries]
 
 ### buffer_write_interval
@@ -212,6 +216,10 @@ Set the URL for writing logs to Loki.
 
 If true, it establishes a secure connection to Loki. Defaults to true.
 
+### tenant_id
+
+Set the tenant ID for Loki communication, which is disabled by default. The tenant ID is required to interact with Loki running in [multi-tenant mode](/docs/loki/latest/operations/multi-tenancy/).
+
 ## [auth.saml]
 
 ### enabled

docs/sources/setup-grafana/configure-security/audit-grafana.md

@@ -424,6 +424,9 @@ type = grpc
 url = localhost:9095
 # Defaults to true. If true, it establishes a secure connection to Loki
 tls = true
+# Set the tenant ID for Loki communication, which is disabled by default.
+# The tenant ID is required to interact with Loki running in multi-tenant mode.
+tenant_id =
 ```
 
 If you have multiple Grafana instances sending logs to the same Loki service or if you are using Loki for non-audit logs, audit logs come with additional labels to help identifying them:

docs/sources/setup-grafana/configure-security/export-logs.md

@@ -85,6 +85,9 @@ type = grpc
 url = localhost:9095
 # Defaults to true. If true, it establishes a secure connection to Loki
 tls = true
+# Set the tenant ID for Loki communication, which is disabled by default.
+# The tenant ID is required to interact with Loki running in multi-tenant mode.
+tenant_id =
 ```
 
 Using `logger` will print usage insights to your [Grafana server log]({{< relref "../../setup-grafana/configure-grafana/#log" >}}).