Clickhouse docker compose with volume limit

docker-compose.yml

services:
  ch_server:
    image: clickhouse/clickhouse-server:latest
    ports:
      - "8123:8123"
      - "9000:9000"
    volumes:
      - ch_data:/var/lib/clickhouse
      - type: bind
        source: ./settings/users.xml
        target: /etc/clickhouse-server/users.d/users.xml

volumes:
  ch_data:
    driver_opts:
      o: "size=900m"
      device: tmpfs
      type: tmpfs

docker-compose up -d
clickhouse-client

SELECT formatReadableSize(free_space)
FROM system.disks

┌─formatReadableSize(free_space)─┐
│ 896.67 MiB                     │
└────────────────────────────────┘