我正在尝试使用以下 shell 脚本提取 hydra 图像。该脚本应该从 docker 存储库中提取图像，然后根据服务器的需要对其进行配置：
echo "Getting Hydra image from hub.docker.com"
docker pull linuxserver/hydra
echo "-----------------"
echo "Importing Hydra database..."
docker run -it --rm --entrypoint hydra linuxserver/hydra migrate sql $DATABASE_URL_HYDRA
echo "-----------------"
但是，当我运行此脚本时，出现以下错误：
docker: Error response from daemon: OCI runtime create failed: container_linux.go:346: starting container process caused "exec: \"hydra\": executable file not found in $PATH": unknown.
ERRO[0000] error waiting for container: context canceled