Drop docs/agent-config.md and link to OTel.io version (#5683)

README.md

@@ -77,7 +77,7 @@ configured to send data to
 at `http://localhost:4317`.
 
 Configuration parameters are passed as Java system properties (`-D` flags) or
-as environment variables. See [the configuration documentation](https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/main/docs/agent-config.md)
+as environment variables. See [the configuration documentation][config]
 for the full list of configuration items. For example:
 ```
 java -javaagent:path/to/opentelemetry-javaagent.jar \
@@ -88,11 +88,11 @@ java -javaagent:path/to/opentelemetry-javaagent.jar \
 
 ## Configuring the Agent
 
-The agent is [highly configurable](docs/agent-config.md)!  Many aspects of the agent's behavior can be
+The agent is [highly configurable][config]!  Many aspects of the agent's behavior can be
 configured for your needs, such as exporter choice, exporter config (like where
 data is sent), trace context propagation headers, and much more.
 
-[Click here to see the detailed list of configuration environment variables and system properties](docs/agent-config.md).
+[Click here to see the detailed list of configuration environment variables and system properties][config].
 
 *Note: Config parameter names are very likely to change over time, so please check
 back here when trying out a new version! Please [report any bugs](https://github.com/open-telemetry/opentelemetry-java-instrumentation/issues) or unexpected
@@ -163,4 +163,5 @@ Thanks to all the people who already contributed!
   <img src="https://contributors-img.web.app/image?repo=open-telemetry/opentelemetry-java-instrumentation" />
 </a>
 
+[config]: https://opentelemetry.io/docs/instrumentation/java/automatic/agent-config/
 [manual]: https://opentelemetry.io/docs/instrumentation/java/manual/

docs/agent-config.md

@@ -1,68 +0,0 @@
-# Agent Configuration
-
-## NOTE: subject to change!
-
-Note: The environment variables/system properties in this document are very likely to change over time.
-Please check back here when trying out a new version!
-
-Please report any bugs or unexpected behavior you find.
-
-## Contents
-
-* [SDK Autoconfiguration](#sdk-autoconfiguration)
-* [Configuring the agent](#configuring-the-agent)
-* [Common instrumentation configuration](#common-instrumentation-configuration)
-* [Suppressing specific auto-instrumentation](#suppressing-specific-auto-instrumentation)
-
-## SDK Autoconfiguration
-
-The SDK's autoconfiguration module is used for basic configuration of the agent. Read the
-[docs](https://github.com/open-telemetry/opentelemetry-java/tree/main/sdk-extensions/autoconfigure)
-to find settings such as configuring export or sampling.
-
-Here are some quick links into those docs for the configuration options for specific portions of the SDK & agent:
-
-* [Exporters](https://github.com/open-telemetry/opentelemetry-java/blob/main/sdk-extensions/autoconfigure/README.md#exporters)
-  + [OTLP exporter (both span and metric exporters)](https://github.com/open-telemetry/opentelemetry-java/tree/main/sdk-extensions/autoconfigure/README.md#otlp-exporter-both-span-and-metric-exporters)
-  + [Jaeger exporter](https://github.com/open-telemetry/opentelemetry-java/tree/main/sdk-extensions/autoconfigure/README.md#jaeger-exporter)
-  + [Zipkin exporter](https://github.com/open-telemetry/opentelemetry-java/tree/main/sdk-extensions/autoconfigure/README.md#zipkin-exporter)
-  + [Prometheus exporter](https://github.com/open-telemetry/opentelemetry-java/tree/main/sdk-extensions/autoconfigure/README.md#prometheus-exporter)
-  + [Logging exporter](https://github.com/open-telemetry/opentelemetry-java/tree/main/sdk-extensions/autoconfigure/README.md#logging-exporter)
-* [Trace context propagation](https://github.com/open-telemetry/opentelemetry-java/tree/main/sdk-extensions/autoconfigure/README.md#propagator)
-* [OpenTelemetry Resource and service name](https://github.com/open-telemetry/opentelemetry-java/tree/main/sdk-extensions/autoconfigure/README.md#opentelemetry-resource)
-* [Batch span processor](https://github.com/open-telemetry/opentelemetry-java/tree/main/sdk-extensions/autoconfigure/README.md#batch-span-processor)
-* [Sampler](https://github.com/open-telemetry/opentelemetry-java/tree/main/sdk-extensions/autoconfigure/README.md#sampler)
-* [Span limits](https://github.com/open-telemetry/opentelemetry-java/tree/main/sdk-extensions/autoconfigure/README.md#span-limits)
-* [Using SPI to further configure the SDK](https://github.com/open-telemetry/opentelemetry-java/tree/main/sdk-extensions/autoconfigure/README.md#customizing-the-opentelemetry-sdk)
-
-## Configuring the agent
-
-The agent can consume configuration from one or more of the following sources (ordered from highest to lowest priority):
-* system properties
-* environment variables
-* the [configuration file](#configuration-file)
-* the [`ConfigPropertySource`](https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/main/javaagent-extension-api/src/main/java/io/opentelemetry/javaagent/extension/config/ConfigPropertySource.java) SPI
-
-### Configuration file
-
-You can provide a path to agent configuration file by setting the corresponding property.
-
-| System property                      | Environment variable                 | Description                                                                      |
-|--------------------------------------|--------------------------------------|----------------------------------------------------------------------------------|
-| `otel.javaagent.configuration-file` | `OTEL_JAVAAGENT_CONFIGURATION_FILE` | Path to valid Java properties file which contains the javaagent configuration.|
-
-### Extensions
-
-You can enable [extensions](../examples/extension/README.md) by setting the corresponding property.
-
-| System property                      | Environment variable                 | Description                                                                      |
-|--------------------------------------|--------------------------------------|----------------------------------------------------------------------------------|
-| `otel.javaagent.extensions` | `OTEL_JAVAAGENT_EXTENSIONS` | Path to a an extension jar file or folder, containing jar files. If pointing to a folder, every jar file in that folder will be treated as separate, independent extension|
-
-## Common instrumentation configuration
-
-See [common instrumentation configuration properties](config/common.md).
-
-## Suppressing specific auto-instrumentation
-
-See [suppressing specific auto-instrumentation](suppressing-instrumentation.md)