services:

  mariadb:
    image: mariadb:11.8
    container_name: mariadb
    environment:
      MYSQL_ROOT_PASSWORD: rootpassword
    volumes:
      - ./sql/mariadb.cnf:/etc/mysql/mariadb.conf.d/mariadb.cnf
      - ./sql/init.sql:/docker-entrypoint-initdb.d/init.sql
    ports:
      - "3306:3306"
    healthcheck:
      test: ["CMD", "healthcheck.sh", "--connect", "--innodb_initialized"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 30s

  jobmanager:
    build: .
    container_name: jobmanager
    environment:
      - |
        FLINK_PROPERTIES=
        jobmanager.rpc.address: jobmanager
        execution.checkpointing.interval: 60s
        execution.checkpointing.mode: EXACTLY_ONCE
        execution.checkpointing.min-pause: 30s
        execution.checkpointing.timeout: 120s
        state.backend: hashmap
        state.checkpoints.dir: file:///opt/flink/checkpoints
        state.savepoints.dir: file:///opt/flink/savepoints
        restart-strategy: fixed-delay
        restart-strategy.fixed-delay.attempts: 3
        restart-strategy.fixed-delay.delay: 10s
        metrics.reporters: prom
        metrics.reporter.prom.factory.class: org.apache.flink.metrics.prometheus.PrometheusReporterFactory
        metrics.reporter.prom.port: 9091
    ports:
      - "8081:8081"
    depends_on:
      mariadb:
        condition: service_healthy
    command: jobmanager
    volumes:
      - ./jobs/job.sql:/opt/flink/job.sql
      - flink-checkpoints:/opt/flink/checkpoints
      - flink-savepoints:/opt/flink/savepoints

  taskmanager:
    build: .
    environment:
      - |
        FLINK_PROPERTIES=
        jobmanager.rpc.address: jobmanager
        taskmanager.numberOfTaskSlots: 2
        execution.checkpointing.interval: 60s
        execution.checkpointing.mode: EXACTLY_ONCE
        execution.checkpointing.min-pause: 30s
        execution.checkpointing.timeout: 120s
        state.backend: hashmap
        state.checkpoints.dir: file:///opt/flink/checkpoints
        state.savepoints.dir: file:///opt/flink/savepoints
        restart-strategy: fixed-delay
        restart-strategy.fixed-delay.attempts: 3
        restart-strategy.fixed-delay.delay: 10s
        metrics.reporters: prom
        metrics.reporter.prom.factory.class: org.apache.flink.metrics.prometheus.PrometheusReporterFactory
        metrics.reporter.prom.port: 9091
    depends_on:
      - jobmanager
    command: taskmanager
    volumes:
      - flink-checkpoints:/opt/flink/checkpoints
      - flink-savepoints:/opt/flink/savepoints
    deploy:
          replicas: 2

volumes:
  flink-checkpoints:
  flink-savepoints: