WIP

Author: Watson1978

README.md

@@ -24,7 +24,7 @@ $ bundle
 
 ## Configuration
 
-### Input plugin
+### Input `opentelemetry` plugin
 
 To receive data, this plugin requires `<http>` or `<grpc>` section, or both.
 
@@ -106,7 +106,19 @@ Refer [Config: Transport Section](https://docs.fluentd.org/configuration/transpo
 </source>
 ```
 
-### Output plugin
+### Input `opentelemetry_metrics` plugin
+
+This plugin provides Fluentd's metrics that conforms to the OpenTelemetry Protocol.
+
+#### Root section
+
+| parameter          | type   | description                                           | default     |
+|--------------------|--------|-------------------------------------------------------|-------------|
+| tag                | string | The tag of the event                                  | required    |
+| emit_interval      | time   | Determine the rate to emit internal metrics as events | `60`        |
+| metric_name_prefix | string | The prefix of metric name                             | `fluentd_`  |
+
+### Output `opentelemetry` plugin
 
 To send data, this plugin requires `<http>` or `<grpc>` section.