所以我需要创建一个带有keyspace的cassandra的docker图像。所以我做了这个docker文件

FROM cassandra

WORKDIR /usr/app
COPY script.cql ./script.cql
COPY entrypoint-wrap.sh  ./entrypoint-wrap.sh

CMD ["cassandra", "-f"]
RUN bash entrypoint-wrap.sh

script.cql包含

CREATE KEYSPACE project WITH replication = {'class':'SimpleStrategy', 'replication_factor' : 3};

我想运行这个脚本

# !/bin/bash

 echo "checkcqlsh"
program=no
while  [ $program = no ]
  do 
  if ! [ -x "$(command -v cqlsh)" ]; then
  echo 'Error: cqlsh is not included.'
  program=no
  else 
  program=yes
  cqlsh -f script.cql 
  fi
done

但当它检查 if 条件由于db尚未启动的错误，映像生成停止。如何检查cassandra数据库是否正常运行？