写一个运行jupyterlab的Dockerfile

以下是一个运行jupyterlab的Dockerfile：

FROM jupyter/datascience-notebook:latest

# 安装必要的包
USER root
RUN apt-get update && \
    apt-get install -yq --no-install-recommends \
    git \
    && apt-get clean && \
    rm -rf /var/lib/apt/lists/*

# 下载jupyterlab扩展
USER $NB_USER
RUN pip install jupyterlab && \
    jupyter labextension install @jupyter-widgets/jupyterlab-manager && \
    jupyter lab build

# 启动jupyterlab
CMD ["jupyter", "lab", "--ip=0.0.0.0", "--port=8888", "--no-browser", "--allow-root"]

解释:

- `FROM jupyter/datascience-notebook:latest`：以jupyter官方提供的datascience-notebook为基础镜像
- 安装必要的包
- 下载jupyterlab扩展
- 启动jupyterlab

运行Docker镜像：

docker build -t jupyterlab:latest .
docker run -p 8888:8888 jupyterlab:latest

这将会启动一个可从浏览器访问的jupyterlab实例。