centos7搭建JupyterLab平台，并开启远程访问

1. jupyterlab介绍

    1.1 用来取代Jupyter Notebook的一个基于Web的用户交互式用户界面。相当于增强版的Jupyter Notebook。

    1.2 相较于Jupyter Notebook，在JupyterLab里除了建立传统的Jupyter笔记(Jupyter Notebook)，还文本编辑器、终端(terminal)、方便易用的文件浏览器。

    1.3 作为文本编辑器，除了编辑文本文件外，还可预览excel文件、csv文件、图片文件、json文件等。

    1.4 JupyterLab非常适合数据分析、教程编写等任务。

2. 安装jupyter

    2.1 安装python3

    2.2 pip3安装jupyter

    pip3 install jupyterlab

[root@iZuf62qojdpdfmeohedn2jZ /]# pip3 install jupyterlab

3. 生成密钥（注意：两次输入的密码都是没有显示的）

[root@iZuf62qojdpdfmeohedn2jZ /]# ipython
Python 3.6.4 (default, Apr 10 2020, 10:25:04) 
Type 'copyright', 'credits' or 'license' for more information
IPython 7.16.1 -- An enhanced Interactive Python. Type '?' for help.

In [1]: from notebook.auth import passwd

In [2]: passwd()
Enter password: 
Verify password: 
Out[2]: '这里输出的是密钥，配置文件中要用到'

4. 生成jupyter lab 的配置文件

    jupyter lab --generate-config

[root@iZuf62qojdpdfmeohedn2jZ /]# jupyter lab --generate-config
Writing default config to: /root/.jupyter/jupyter_notebook_config.py
[root@iZuf62qojdpdfmeohedn2jZ /]#

5. 编辑配置文件

[root@iZuf62qojdpdfmeohedn2jZ /]# cd /root/.jupyter/
[root@iZuf62qojdpdfmeohedn2jZ .jupyter]# ls
jupyter_notebook_config.py
[root@iZuf62qojdpdfmeohedn2jZ .jupyter]# vim jupyter_notebook_config.py

修改以下配置项：

c.NotebookApp.ip = '*'
# 这里的密码填写上面生成的密钥
c.NotebookApp.password = '密钥' 
# 禁止用host的浏览器打开jupyter
c.NotebookApp.open_browser = False 
# 打开jupyter lab的端口，端口自定义
c.NotebookApp.port = 9010
# 允许远程访问 
c.NotebookApp.allow_remote_access = True

如果嫌一个一找太麻烦的话，可以直接把这段配置代码粘贴进去

6. 启动jupyterlab

[root@iZuf62qojdpdfmeohedn2jZ /]# jupyter lab
[W 11:04:03.104 LabApp] WARNING: The notebook server is listening on all IP addresses and not using encryption. This is not recommended.
[I 11:04:03.111 LabApp] JupyterLab extension loaded from /usr/local/python3/lib/python3.6/site-packages/jupyterlab
[I 11:04:03.111 LabApp] JupyterLab application directory is /usr/local/python3/share/jupyter/lab
[C 11:04:03.114 LabApp] Running as root is not recommended. Use --allow-root to bypass.
[root@iZuf62qojdpdfmeohedn2jZ /]# 

    报错，原因是权限不够。后边加上 --allow-root 即可

[root@iZuf62qojdpdfmeohedn2jZ /]# jupyter lab --allow-root
[W 11:08:55.110 LabApp] WARNING: The notebook server is listening on all IP addresses and not using encryption. This is not recommended.
[I 11:08:55.116 LabApp] JupyterLab extension loaded from /usr/local/python3/lib/python3.6/site-packages/jupyterlab
[I 11:08:55.116 LabApp] JupyterLab application directory is /usr/local/python3/share/jupyter/lab
[I 11:08:55.119 LabApp] Serving notebooks from local directory: /
[I 11:08:55.119 LabApp] Jupyter Notebook 6.1.4 is running at:
[I 11:08:55.119 LabApp] http://iZuf62qojdpdfmeohedn2jZ:9010/
[I 11:08:55.119 LabApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).

    注意：http://iZuf62qojdpdfmeohedn2jZ:9010/ 不是最终要访问的地址

    启动成功！但是远程访问不了，原因是阿里云服务器实例上未开启9010端口，去阿里云开启一下9010端口即可

7. 阿里云开启映射端口

    7.1 登录阿里云账号

    7.2 点击进入实例详情=====>本实例安全组=====>配置规则

开放端口：

8. 重启jupyterlab

[root@iZuf62qojdpdfmeohedn2jZ /]# jupyter lab --allow-root

浏览器输入： http://服务器公网IP:9010/，输入密码之后即可访问

大功告成！！！