I have Docker installed in top of a CentOS system. 

I tried to use **volume** but each new container is deleting (or hidding) the content of the folder to share. 

My volume is always empty after a Docker run.

In order to create my containers, I use 

```
docker run -dit --name $CONTAINER_NAME  -p $PORT:8080 \
-v $VOLUME_PATH:/opt/conf/ \
$IMAGE_NAME

```

I aim at sharing a folder from the host between few Docker containers (to READ) AND I want also to write into this folder from the host. 

What is an elegant way to do that ?