Shared writable folder for each group

JupyterHub
, ,
5

Hi minrk,

Thanks so much for your detailed explanation of these two methods. Actually I’ve just figured it out and was planning to post my workaround here, though it is a little bit tedious. I’ll try to modify it according to your hints :grinning: Thank you again!

import sqlite3
team_map = {} # prepare an empty dict
def pre_spawn_hook(spawner):
    username = spawner.user.name # get the username
    team_map[str(username)] = []
    conn = sqlite3.connect("./app/app.db") # connect to our app's database
    cur = conn.cursor()
    projects = cur.execute("SELECT name FROM Project LEFT JOIN user_projects ON user_projects.project_id = Project.id WHERE user_projects.user_id = %s;"%(str(username)))
    for p in projects:
        team_map[str(username)].append(p[0]) # retrieve user and project information and put into team_map
    conn.close()

c.Spawner.pre_spawn_hook = pre_spawn_hook

class MyDockerSpawner(DockerSpawner):
    def start(self):
        teams = team_map[self.user.name]
        # add team volume to volumes
        for team in teams:
            self.volumes['jupyterhub-team-{}'.format(team)] = {
                'bind': '/home/jovyan/{}'.format(team),
                'mode': 'rw'
            }
            # resolve 'permission denied' issue
            self.environment = {
                "CHOWN_HOME": "yes",
                "CHOWN_EXTRA": "/home/jovyan",
                "CHOWN_HOME_OPTS": "-R",
                "NB_UID": 1000,
                "NB_GID": 1000,
            }
            self.extra_create_kwargs = {'user': 'root'}
        return super().start()

c.JupyterHub.spawner_class = MyDockerSpawner
c.DockerSpawner.remove = True
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