Initialize RTGS prototype repository

3센터 A-A-A RTGS 실시간총액결제 프로토타입 최초 버전관리 시작.
- backend: Kotlin/Gradle 멀티모듈(sequencer, common, 채널/센터 모듈)
- frontend: Vite + TS
- infra: docker-compose, prometheus/grafana, ELK 네이티브 스크립트
- loadtest(k6), sim(장애/순서/정합성 시나리오), docs(PoC 보고서/복원력방안)

infra/docker-compose.yml

@@ -0,0 +1,74 @@
+name: rtgs
+
+# 로컬 경량 스택 (1센터 DC1). acs와 포트/프로젝트명(-p rtgs 자동: name=rtgs) 분리.
+# 서비스(Sequencer/Chanel/Dior/Hermes/Prada)는 호스트에서 gradlew bootRun으로 구동하며
+# 아래 인프라(localhost:9092/5433/27017)에 접속한다.
+
+services:
+  postgres:
+    image: postgres:16
+    container_name: rtgs-postgres
+    environment:
+      POSTGRES_DB: rtgs
+      POSTGRES_USER: rtgs
+      POSTGRES_PASSWORD: rtgs
+    ports:
+      - "5433:5432"          # acs=5432 회피
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+      - ./init/postgres-init.sql:/docker-entrypoint-initdb.d/01-init.sql:ro
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U rtgs -d rtgs"]
+      interval: 5s
+      timeout: 3s
+      retries: 20
+
+  mongo:
+    image: mongo:7
+    container_name: rtgs-mongo
+    ports:
+      - "27017:27017"
+    volumes:
+      - mongodata:/data/db
+
+  kafka:
+    image: apache/kafka:3.8.1
+    container_name: rtgs-kafka
+    ports:
+      - "9092:9092"
+    environment:
+      # --- KRaft 단일 노드(broker+controller) ---
+      KAFKA_NODE_ID: "1"
+      KAFKA_PROCESS_ROLES: "broker,controller"
+      KAFKA_CONTROLLER_QUORUM_VOTERS: "1@localhost:9093"
+      # HOST(호스트의 gradle bootRun) / DOCKER(컨테이너 내 kafka-ui) 이중 리스너
+      KAFKA_LISTENERS: "HOST://:9092,DOCKER://:29092,CONTROLLER://:9093"
+      KAFKA_ADVERTISED_LISTENERS: "HOST://localhost:9092,DOCKER://kafka:29092"
+      KAFKA_CONTROLLER_LISTENER_NAMES: "CONTROLLER"
+      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: "CONTROLLER:PLAINTEXT,HOST:PLAINTEXT,DOCKER:PLAINTEXT"
+      KAFKA_INTER_BROKER_LISTENER_NAME: "DOCKER"
+      # --- 단일 노드 복제/ISR ---
+      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: "1"
+      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: "1"
+      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: "1"
+      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: "0"
+      # --- 저널 전역 순서 보장: 기본 파티션 1개(단일 파티션이라야 전역 순서 성립) ---
+      KAFKA_NUM_PARTITIONS: "1"
+      KAFKA_AUTO_CREATE_TOPICS_ENABLE: "true"
+
+  # 선택: Kafka 관리 UI (docker compose --profile ui up)
+  kafka-ui:
+    image: provectuslabs/kafka-ui:latest
+    container_name: rtgs-kafka-ui
+    profiles: ["ui"]
+    ports:
+      - "8095:8080"
+    environment:
+      KAFKA_CLUSTERS_0_NAME: rtgs
+      KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS: kafka:29092
+    depends_on:
+      - kafka
+
+volumes:
+  pgdata:
+  mongodata: