Add config visibility tip to library config pages. (#32958)

* Add config visibility tip to library config pages.

* Revise alert.

---------

Co-authored-by: DeForest Richards <56796055+drichards-87@users.noreply.github.com>
Co-authored-by: Duncan Hewett <duncanhewett@users.noreply.github.com>

Author: 3 people

content/en/tracing/trace_collection/library_config/_index.md

@@ -6,6 +6,8 @@ type: multi-code-lang
 
 This page describes configuration options that behave consistently across all languages. To view these common configuration options, see [Common configuration options](#common-configuration-options).
 
+{{% apm-config-visibility %}}
+
 For configuration options specific to your programming language, choose your language from the options below:
 
 {{< partial name="apm/apm-compatibility.html" >}}

content/en/tracing/trace_collection/library_config/cpp.md

@@ -17,6 +17,8 @@ further_reading:
 
 After you set up the tracing library with your code and configure the Agent to collect APM data, optionally configure the tracing library as desired, including setting up [Unified Service Tagging][1].
 
+{{% apm-config-visibility %}}
+
 It is recommended to use `DD_SERVICE`, `DD_ENV`, and `DD_VERSION` to set `env`, `service` and `version` for your services. Refer to the [Unified Service Tagging][1] docummentation recommendations on which value to set for environment variables.
 
 ## Environment variables

content/en/tracing/trace_collection/library_config/dotnet-core.md

@@ -38,6 +38,8 @@ further_reading:
 
 After you set up the tracing library with your code and configure the Agent to collect APM data, optionally configure the tracing library as desired, including setting up [Unified Service Tagging][4].
 
+{{% apm-config-visibility %}}
+
 {{< img src="tracing/dotnet/dotnet_core_configuration.png" alt=".NET Core Tracer configuration setting precedence" style="width:100%" >}}
 
 You can set configuration settings in the .NET Tracer with any of the following methods:

content/en/tracing/trace_collection/library_config/dotnet-framework.md

@@ -41,6 +41,8 @@ further_reading:
 
 After you set up the tracing library with your code and configure the Agent to collect APM data, optionally configure the tracing library as desired, including setting up [Unified Service Tagging][4].
 
+{{% apm-config-visibility %}}
+
 {{< img src="tracing/dotnet/dotnet_framework_configuration.png" alt=".NET Framework Tracer configuration setting precedence" style="width:100%" >}}
 
 You can set configuration settings in the .NET Tracer with any of the following methods:

content/en/tracing/trace_collection/library_config/go.md

@@ -26,6 +26,8 @@ further_reading:
 
 After you [set up the tracing library with your code, configure the Agent to collect APM data, and activate the Go integration][1], start the tracer and configure the library as desired. {{% tracing-go-v2 %}}
 
+{{% apm-config-visibility %}}
+
 Datadog recommends using `DD_ENV`, `DD_SERVICE`, and `DD_VERSION` to set `env`, `service`, and `version` for your services.
 
 Read the [Unified Service Tagging][2] documentation for recommendations on how to configure these environment variables. These variables are available for versions 1.24.0+ of the Go tracer.

content/en/tracing/trace_collection/library_config/java.md

@@ -20,6 +20,8 @@ further_reading:
 
 After you set up the tracing library with your code and configure the Agent to collect APM data, optionally configure the tracing library as desired, including setting up [Unified Service Tagging][1].
 
+{{% apm-config-visibility %}}
+
 All configuration options below have system property and environment variable equivalents.
 If the same key type is set for both, the system property configuration takes priority.
 System properties can be set as JVM flags.

content/en/tracing/trace_collection/library_config/nodejs.md

@@ -26,6 +26,8 @@ further_reading:
 
 After you set up the tracing library with your code and configure the Agent to collect APM data, optionally configure the tracing library as desired, including setting up [Unified Service Tagging][1].
 
+{{% apm-config-visibility %}}
+
 Tracer settings can be configured with the following environment variables:
 
 ### Unified Service Tagging

content/en/tracing/trace_collection/library_config/php.md

@@ -26,6 +26,8 @@ further_reading:
 
 After you set up the tracing library with your code and configure the Agent to collect APM data, optionally configure the tracing library as desired, including setting up [Unified Service Tagging][1].
 
+{{% apm-config-visibility %}}
+
 The PHP tracer can be configured using environment variables and INI settings.
 
 INI settings can be configured globally, for example, in the `php.ini` file, or for a specific web server or virtual host.

content/en/tracing/trace_collection/library_config/python.md

@@ -26,6 +26,8 @@ further_reading:
 
 After you set up the tracing library with your code and configure the Agent to collect APM data, optionally configure the tracing library as desired, including setting up [Unified Service Tagging][1].
 
+{{% apm-config-visibility %}}
+
 When using **ddtrace-run**, the following [environment variable options][2] can be used:
 
 ## Unified service tagging

content/en/tracing/trace_collection/library_config/ruby.md

@@ -17,6 +17,8 @@ further_reading:
 
 After you set up the tracing library with your code and configure the Agent to collect APM data, optionally configure the tracing library as desired, including setting up [Unified Service Tagging][1].
 
+{{% apm-config-visibility %}}
+
 For information about configuring the Ruby tracing library, see [Additional Ruby configuration][2].
 
 ## Further Reading