Point users+contributors to integration source (#334)

Author: karenzone

.github/ISSUE_TEMPLATE.md

@@ -1,9 +1,13 @@
-Please post all product and debugging questions on our [forum](https://discuss.elastic.co/c/logstash). Your questions will reach our wider community members there, and if we confirm that there is a bug, then we can open a new issue here.
+## Kafka Input Plugin's Issue Tracker Has Moved
+
+The Kafka Input Plugin is now a part of the [Kafka Integration Plugin][integration-source]. 
+This project remains open for backports of fixes from that project to the 9.x series where possible, but issues should first be filed on the [integration plugin][integration-issues].
+
+Please post all product and debugging questions on our [forum][logstash-forum].
+Your questions will reach our wider community members there. If we confirm that there is a bug, then we can open a new issue on the appropriate project.
+
+[integration-source]: https://github.com/logstash-plugins/logstash-integration-kafka
+[integration-issues]: https://github.com/logstash-plugins/logstash-integration-kafka/issues/
+[logstash-forum]: https://discuss.elastic.co/c/logstash
 
-For all general issues, please provide the following details for fast resolution:
 
-- Version:
-- Operating System:
-- Config File (if you have sensitive info, please remove it):
-- Sample Data:
-- Steps to Reproduce:

.github/PULL_REQUEST_TEMPLATE.md

@@ -1 +1,13 @@
+## Kafka Input Plugin's Source Has Moved
+
+This Kafka Input Plugin is now a part of the [Kafka Integration Plugin][integration-source]. This project remains open for backports of fixes from that project to the 9.x series where possible, but pull-requests should first be made on the [integration plugin][integration-pull-requests].
+
+If you have already made commits on a clone of this stand-alone repository, it's ok! Go ahead and open the Pull Request here, and open an Issue linking to it on the [integration plugin][integration-issues] -- we'll work with you to sort it all out and to get the backport applied.
+
+## Contributor Agreement
+
 Thanks for contributing to Logstash! If you haven't already signed our CLA, here's a handy link: https://www.elastic.co/contributor-agreement/
+
+[integration-source]: https://github.com/logstash-plugins/logstash-integration-kafka
+[integration-issues]: https://github.com/logstash-plugins/logstash-integration-kafka/issues/
+[integration-pull-requests]: https://github.com/logstash-plugins/logstash-integration-kafka/pulls

README.md

@@ -6,6 +6,14 @@ This is a plugin for [Logstash](https://github.com/elastic/logstash).
 
 It is fully free and fully open source. The license is Apache 2.0, meaning you are pretty much free to use it however you want in whatever way.
 
+## Kafka Input Plugin Has Moved
+
+This Kafka Input Plugin is now a part of the [Kafka Integration Plugin][integration-source]. This project remains open for backports of fixes from that project to the 9.x series where possible, but issues should first be filed on the [integration plugin][integration-issues].
+
+[integration-source]: https://github.com/logstash-plugins/logstash-integration-kafka
+[integration-issues]: https://github.com/logstash-plugins/logstash-integration-kafka/issues/
+
+
 ## Logging
 
 Kafka logs do not respect the Log4J2 root logger level and defaults to INFO, for other levels, you must explicitly set the log level in your Logstash deployment's `log4j2.properties` file, e.g.:

docs/index.asciidoc

@@ -2,6 +2,18 @@
 :type: input
 :default_codec: plain
 
+
+/////////////////////////////////////////////
+// Kafka Input Plugin Source Has Moved     //
+// --------------------------------------- //
+// The Kafka Input Plugin is now a part    //
+// of the Kafka Integration.               //
+//                                         //
+// This stand-alone plugin project remains //
+// open for backports to the 9.x series.   //
+/////////////////////////////////////////////
+
+
 ///////////////////////////////////////////
 START - GENERATED VARIABLES, DO NOT EDIT!
 ///////////////////////////////////////////
@@ -13,6 +25,7 @@ START - GENERATED VARIABLES, DO NOT EDIT!
 END - GENERATED VARIABLES, DO NOT EDIT!
 ///////////////////////////////////////////
 
+
 [id="plugins-{type}s-{plugin}"]
 
 === Kafka input plugin