Deprecating The Datadog Processor (#25437)

The Datadog Processor is deprecated in favor of the Datadog Connector

Link to issue:
#19740

---------

Co-authored-by: Yang Song <[email protected]>
Co-authored-by: Alex Boten <[email protected]>

.chloggen/deprecate-processor.yaml

@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: deprecation
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: datadogprocessor
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Deprecation of Datadog processor in favor of Datadog connector
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [19740]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: [user]

processor/datadogprocessor/README.md

@@ -2,17 +2,20 @@
 <!-- status autogenerated section -->
 | Status        |           |
 | ------------- |-----------|
-| Stability     | [beta]: traces   |
+| Stability     | [deprecated]: traces   |
 | Distributions | [contrib] |
 | Issues        | [![Open issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aopen%20label%3Aprocessor%2Fdatadog%20&label=open&color=orange&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aopen+is%3Aissue+label%3Aprocessor%2Fdatadog) [![Closed issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aclosed%20label%3Aprocessor%2Fdatadog%20&label=closed&color=blue&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aclosed+is%3Aissue+label%3Aprocessor%2Fdatadog) |
 | [Code Owners](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#becoming-a-code-owner)    | [@mx-psi](https://github.com/mx-psi), [@gbbr](https://github.com/gbbr), [@dineshg13](https://github.com/dineshg13) |
 
-[beta]: https://github.com/open-telemetry/opentelemetry-collector#beta
+[deprecated]: https://github.com/open-telemetry/opentelemetry-collector#deprecated
 [contrib]: https://github.com/open-telemetry/opentelemetry-collector-releases/tree/main/distributions/otelcol-contrib
 <!-- end autogenerated section -->
 
 ## Description
 
+
+This component has been deprecated in favor of its successor the [Datadog Connector](../../connector/datadogconnector/README.md) which serves the same purpose and should be used in place of the Datadog processor.
+
 The Datadog Processor can be used to compute Datadog APM Stats pre-sampling. For example, when using the [tailsamplingprocessor](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/tailsamplingprocessor#tail-sampling-processor) or [probabilisticsamplerprocessor](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/probabilisticsamplerprocessor) components, the `datadogprocessor` can be prepended into the pipeline to ensure that Datadog APM Stats are accurate and include the dropped traces.
 
 ## Usage

processor/datadogprocessor/go.mod

@@ -1,3 +1,4 @@
+// Deprecated: Use Datadog connector instead.
 module github.com/open-telemetry/opentelemetry-collector-contrib/processor/datadogprocessor
 
 go 1.20

processor/datadogprocessor/metadata.yaml

@@ -3,7 +3,7 @@ type: datadog
 status:
   class: processor
   stability:
-    beta: [traces]
+    deprecated: [traces]
   distributions: [contrib]
   codeowners:
     active: [mx-psi, gbbr, dineshg13]

processor/datadogprocessor/processor.go

@@ -51,6 +51,7 @@ func newProcessor(ctx context.Context, logger *zap.Logger, config component.Conf
 	if err != nil {
 		return nil, err
 	}
+	logger.Warn("This component is deprecated in favor of the Datadog connector")
 	return &datadogProcessor{
 		logger:       logger,
 		nextConsumer: nextConsumer,