Add Docker compose and restate.toml

java/patterns-use-cases/patterns-use-cases/docker-compose.yaml

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+version: '3'
+services:
+  broker:
+    image: confluentinc/cp-kafka:7.5.0
+    container_name: broker
+    ports:
+      - "9092:9092"
+      - "9101:9101"
+    environment:
+      KAFKA_BROKER_ID: 1
+      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
+      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://broker:29092,PLAINTEXT_HOST://localhost:9092
+      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
+      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
+      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
+      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
+      KAFKA_PROCESS_ROLES: broker,controller
+      KAFKA_NODE_ID: 1
+      KAFKA_CONTROLLER_QUORUM_VOTERS: 1@broker:29093
+      KAFKA_LISTENERS: PLAINTEXT://broker:29092,CONTROLLER://broker:29093,PLAINTEXT_HOST://0.0.0.0:9092
+      KAFKA_INTER_BROKER_LISTENER_NAME: PLAINTEXT
+      KAFKA_CONTROLLER_LISTENER_NAMES: CONTROLLER
+      KAFKA_LOG_DIRS: /tmp/kraft-combined-logs
+      CLUSTER_ID: MkU3OEVBNTcwNTJENDM2Qk
+
+  init-kafka:
+    image: confluentinc/cp-kafka:7.5.0
+    depends_on:
+      - broker
+    entrypoint: [ '/bin/sh', '-c' ]
+    command: |
+      "# blocks until kafka is reachable
+      kafka-topics --bootstrap-server broker:29092 --list
+      echo -e 'Creating kafka topics'
+      kafka-topics --bootstrap-server broker:29092 --create --if-not-exists --topic social-media-posts --replication-factor 1 --partitions 1
+      kafka-topics --bootstrap-server broker:29092 --create --if-not-exists --topic package-location-updates --replication-factor 1 --partitions 1
+      
+      echo -e 'Successfully created the following topics:'
+      kafka-topics --bootstrap-server broker:29092 --list"

java/patterns-use-cases/patterns-use-cases/restate.toml

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+[[ingress.kafka-clusters]]
+name = "my-cluster"
+brokers = ["PLAINTEXT://localhost:9092"]