docker-compose.monitoring.yml

# Runs on Docker Desktop (Windows). The backend on the EVE-NG VM publishes to the
# EXTERNAL listener <KAFKA_ADVERTISED_HOST>:9094. Set KAFKA_ADVERTISED_HOST in .env
# to the Windows IP that the EVE VM can reach (e.g. the VMware VMnet adapter IP).
#   docker compose -f docker-compose.monitoring.yml up -d --build

services:
  kafka:
    image: apache/kafka:3.8.0          # single-node KRaft (no ZooKeeper)
    container_name: bgp-kafka
    ports: ["9094:9094"]
    environment:
      KAFKA_NODE_ID: 1
      KAFKA_PROCESS_ROLES: broker,controller
      KAFKA_LISTENERS: INTERNAL://:29092,EXTERNAL://:9094,CONTROLLER://:9093
      KAFKA_ADVERTISED_LISTENERS: INTERNAL://kafka:29092,EXTERNAL://${KAFKA_ADVERTISED_HOST:-localhost}:9094
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: INTERNAL:PLAINTEXT,EXTERNAL:PLAINTEXT,CONTROLLER:PLAINTEXT
      KAFKA_CONTROLLER_LISTENER_NAMES: CONTROLLER
      KAFKA_CONTROLLER_QUORUM_VOTERS: 1@kafka:9093
      KAFKA_INTER_BROKER_LISTENER_NAME: INTERNAL
      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
      KAFKA_LOG_RETENTION_HOURS: 72
    volumes: [kafka_data:/var/lib/kafka/data]
    healthcheck:
      test: ["CMD-SHELL", "/opt/kafka/bin/kafka-topics.sh --bootstrap-server localhost:29092 --list"]
      interval: 10s
      retries: 12

  kafka-init:
    image: apache/kafka:3.8.0
    depends_on: {kafka: {condition: service_healthy}}
    restart: "no"
    entrypoint: ["/bin/sh", "-c"]
    command:
      - |
        for t in bgp.neighbor.events bgp.neighbor.snapshots bgp.config.changes; do
          /opt/kafka/bin/kafka-topics.sh --bootstrap-server kafka:29092 --create --if-not-exists --topic $$t --partitions 3 --replication-factor 1
        done

  exporter:
    build: ./monitoring/exporter
    container_name: bgp-exporter
    depends_on: {kafka-init: {condition: service_completed_successfully}}
    environment:
      KAFKA_BOOTSTRAP: kafka:29092
    restart: unless-stopped

  prometheus:
    image: prom/prometheus:v2.55.1
    container_name: bgp-prometheus
    ports: ["9090:9090"]
    volumes:
      - ./monitoring/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml:ro
      - ./monitoring/prometheus/alerts.yml:/etc/prometheus/alerts.yml:ro
      - prom_data:/prometheus
    depends_on: [exporter]

  grafana:
    image: grafana/grafana:11.3.0
    container_name: bgp-grafana
    ports: ["3000:3000"]
    environment:
      GF_SECURITY_ALLOW_EMBEDDING: "true"
      GF_AUTH_ANONYMOUS_ENABLED: "true"
      GF_AUTH_ANONYMOUS_ORG_ROLE: Viewer
      GF_DASHBOARDS_DEFAULT_HOME_DASHBOARD_PATH: /var/lib/grafana/dashboards/bgp.json
    volumes:
      - ./monitoring/grafana/provisioning:/etc/grafana/provisioning:ro
      - ./monitoring/grafana/dashboards:/var/lib/grafana/dashboards:ro
      - grafana_data:/var/lib/grafana
    depends_on: [prometheus]

  kafka-ui:
    image: provectuslabs/kafka-ui:v0.7.2
    container_name: bgp-kafka-ui
    ports: ["8080:8080"]
    environment:
      KAFKA_CLUSTERS_0_NAME: bgp-lab
      KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS: kafka:29092
    depends_on: {kafka: {condition: service_healthy}}

volumes:
  kafka_data:
  prom_data:
  grafana_data: