Enable sharing in JupyterHub and update single-user Dockerfile to ins…

…tall jupyterlab-link-share

jupyterhub_config.py

@@ -6,9 +6,15 @@
 
 c = get_config()
 
-# We rely on environment variables to configure JupyterHub so that we
-# avoid having to rebuild the JupyterHub container every time we change a
-# configuration parameter.
+
+# eanble sharing https://jupyterhub.readthedocs.io/en/latest/reference/sharing.html#sharing-reference
+c.JupyterHub.load_roles = [
+    {
+        "name": "user",
+        "scopes": ["self", "shares!user", "read:users:name", "read:groups:name"],
+    },
+]
+
 
 # Spawn single-user servers as Docker containers
 c.JupyterHub.spawner_class = 'dockerspawner.DockerSpawner'

singleuser/Dockerfile

@@ -44,7 +44,7 @@ RUN echo -e "jupyter\njupyter" | passwd jovyan
 #RUN apt-key adv --keyserver 'hkp://keyserver.ubuntu.com:80' --recv-key C1CF6E31E6BADE8868B172B4F42ED6FBAB17C654
 #RUN apt-get update
 
-RUN pip install jupyter-collaboration
+RUN pip install jupyter-collaboration jupyterlab-link-share
 # RUN pip install --upgrade octave_kernel bash_kernel
 
 # RUN pip install --upgrade calysto_prolog octave_kernel bash_kernel