Add test files for license header compliance testing

- Good files with complete license headers (4 files):
  * Java: TestProcessor.java
  * Python: setup-environment.py
  * YAML: docker-compose.yml
  * Properties: application.properties

- Bad files with missing/incomplete headers (5 files):
  * Java: NewFeature.java (no header)
  * Python: monitor.py (short header)
  * YAML: data-prepper-config.yaml (no header)
  * Properties: dev.properties (no header)
  * Shell: compile.sh (incomplete header)

These files test the license header compliance system across
all supported file types and various violation scenarios.

Author: dlvenable

config/docker/docker-compose.yml

@@ -0,0 +1,18 @@
+#
+# Copyright OpenSearch Contributors
+# SPDX-License-Identifier: Apache-2.0
+#
+# The OpenSearch Contributors require contributions made to
+# this file be licensed under the Apache-2.0 license or a
+# compatible open source license.
+#
+
+version: '3.8'
+
+services:
+  data-prepper:
+    image: opensearchproject/data-prepper:latest
+    ports:
+      - "4900:4900"
+    volumes:
+      - ./pipelines.yaml:/usr/share/data-prepper/pipelines/pipelines.yaml

config/environments/dev.properties

@@ -0,0 +1,5 @@
+# Development environment configuration
+environment=development
+debug.enabled=true
+log.level=DEBUG
+data-prepper.workers=2

data-prepper-core/src/main/java/org/opensearch/dataprepper/core/NewFeature.java

@@ -0,0 +1,11 @@
+package org.opensearch.dataprepper.core;
+
+/**
+ * This file is missing the license header completely.
+ */
+public class NewFeature {
+    
+    public void doSomething() {
+        System.out.println("This file has no license header!");
+    }
+}

data-prepper-plugins/test-plugin/src/main/java/org/opensearch/dataprepper/plugins/test/TestProcessor.java

@@ -0,0 +1,16 @@
+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
+ */
+
+package org.opensearch.dataprepper.plugins.test;
+
+import org.opensearch.dataprepper.model.processor.Processor;
+
+public class TestProcessor implements Processor {
+    // This is a good Java file with complete license header
+}

deployment/kubernetes/data-prepper-config.yaml

@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: data-prepper-config
+  namespace: opensearch
+data:
+  pipelines.yaml: |
+    simple-pipeline:
+      source:
+        http:
+          port: 2021
+      sink:
+        - stdout:

examples/trace-analytics/application.properties

@@ -0,0 +1,13 @@
+#
+# Copyright OpenSearch Contributors
+# SPDX-License-Identifier: Apache-2.0
+#
+# The OpenSearch Contributors require contributions made to
+# this file be licensed under the Apache-2.0 license or a
+# compatible open source license.
+#
+
+# Application configuration for trace analytics example
+server.port=8080
+logging.level.org.opensearch.dataprepper=DEBUG
+data-prepper.pipeline.workers=4

scripts/compile.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+# Copyright OpenSearch Contributors
+
+# This shell script has incomplete license header
+set -e
+
+echo "Starting compilation..."
+./gradlew clean build
+
+echo "Compilation completed successfully!"

scripts/deployment/setup-environment.py

@@ -0,0 +1,20 @@
+#!/usr/bin/env python3
+#
+# Copyright OpenSearch Contributors
+# SPDX-License-Identifier: Apache-2.0
+#
+# The OpenSearch Contributors require contributions made to
+# this file be licensed under the Apache-2.0 license or a
+# compatible open source license.
+#
+
+"""
+Environment setup script for Data Prepper deployment.
+"""
+
+def setup_environment():
+    """Set up the deployment environment."""
+    print("Setting up environment...")
+
+if __name__ == "__main__":
+    setup_environment()

tools/monitoring/monitor.py

@@ -0,0 +1,19 @@
+#!/usr/bin/env python3
+# Copyright OpenSearch Contributors
+# SPDX-License-Identifier: Apache-2.0
+
+"""
+This file has only the short header (missing the 3 additional lines).
+"""
+
+import sys
+import time
+
+def monitor_system():
+    """Monitor system resources."""
+    while True:
+        print("Monitoring...")
+        time.sleep(60)
+
+if __name__ == "__main__":
+    monitor_system()