[hw-6] add notifier service, kafka

docker-compose.yaml

@@ -18,12 +18,25 @@ services:
       context: .
       dockerfile: loms/Dockerfile
     depends_on:
-      - postgres-master
+      postgres-master:
+        condition: service_started
+      init-kafka:
+        condition: service_completed_successfully
     ports:
       - "8083:8083"
       - "8084:8084"
       - "8085:8085"
 
+  notifier:
+    build:
+      context: .
+      dockerfile: notifier/Dockerfile
+    depends_on:
+      init-kafka:
+        condition: service_completed_successfully
+    deploy:
+      replicas: 3
+
   postgres-master:
     image: gitlab-registry.ozon.dev/go/classroom-18/students/base/postgres:16
     container_name: postgres-master
@@ -57,3 +70,52 @@ services:
       - POSTGRESQL_NUM_SYNCHRONOUS_REPLICAS=1
     ports:
       - "5434:5432"
+
+  kafka-ui:
+    container_name: kafka-ui
+    image: provectuslabs/kafka-ui:latest
+    ports:
+      - 8095:8080
+    environment:
+      KAFKA_CLUSTERS_0_NAME: local
+      KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS: kafka0:29092
+      DYNAMIC_CONFIG_ENABLED: "true"
+
+  kafka0:
+    container_name: kafka
+    image: confluentinc/cp-kafka:7.7.1.arm64
+    ports:
+      - 9092:9092
+    expose:
+      - '29092'
+    environment:
+      KAFKA_NODE_ID: 1
+      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,CONTROLLER:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
+      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka0:29092,PLAINTEXT_HOST://localhost:9092
+      KAFKA_LISTENERS: PLAINTEXT://kafka0:29092,CONTROLLER://kafka0:29093,PLAINTEXT_HOST://:9092
+      KAFKA_CONTROLLER_LISTENER_NAMES: "CONTROLLER"
+      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
+      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
+      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
+      KAFKA_CONTROLLER_QUORUM_VOTERS: "1@kafka0:29093"
+      KAFKA_PROCESS_ROLES: "broker,controller"
+      KAFKA_LOG_DIRS: "/tmp/kraft-combined-logs"
+      CLUSTER_ID: 'MkU3OEVBNTcwNTJENDM2Qk'
+
+  init-kafka:
+    image: confluentinc/cp-kafka:7.7.1.arm64
+    depends_on:
+      - kafka0
+    entrypoint: [ '/bin/sh', '-c' ]
+    command: |
+      "
+      # blocks until kafka is reachable
+      kafka-topics --bootstrap-server kafka:29092 --list
+
+      echo -e 'Creating kafka topics'
+      kafka-topics --create --topic loms.order-events --bootstrap-server kafka:29092 --partitions 2 --replication-factor 1
+
+      echo -e 'Successfully created the following topics:'
+      kafka-topics --bootstrap-server kafka:29092 --list
+      "
+