services:
  clickhouse:
    image: clickhouse/clickhouse-server:26.8.27.9
    restart: unless-stopped
    environment:
      # The user default, with the password given: without one the image lets it in from the
      # container's network only, and the HTTP interface would be closed to everyone.
      CLICKHOUSE_USER: default
      CLICKHOUSE_PASSWORD: ${ADMIN_PASSWORD}
      CLICKHOUSE_DEFAULT_ACCESS_MANAGEMENT: "1"
    # The stock config logs at trace level into ten files of 1000 MB and keeps its query, metric and
    # trace tables for ever: on a small machine they would fill the disk over months. This keeps the
    # server's log under 300 MB and those tables a week.
    entrypoint:
      - sh
      - -c
      - |
        cat > /etc/clickhouse-server/config.d/small-machine.xml <<'XML'
        <clickhouse>
          <logger><level>information</level><size>100M</size><count>3</count></logger>
          <query_log><ttl>event_date + INTERVAL 7 DAY DELETE</ttl></query_log>
          <metric_log><ttl>event_date + INTERVAL 7 DAY DELETE</ttl></metric_log>
          <asynchronous_metric_log><ttl>event_date + INTERVAL 7 DAY DELETE</ttl></asynchronous_metric_log>
          <trace_log><ttl>event_date + INTERVAL 7 DAY DELETE</ttl></trace_log>
          <text_log><ttl>event_date + INTERVAL 7 DAY DELETE</ttl></text_log>
          <part_log><ttl>event_date + INTERVAL 7 DAY DELETE</ttl></part_log>
          <error_log><ttl>event_date + INTERVAL 7 DAY DELETE</ttl></error_log>
        </clickhouse>
        XML
        exec /entrypoint.sh
    volumes:
      - data:/var/lib/clickhouse
volumes:
  data: