Mount config file instead of building into image

Author: manics

Dockerfile.jupyterhub

@@ -1,7 +1,7 @@
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
 ARG JUPYTERHUB_VERSION
-FROM jupyterhub/jupyterhub-onbuild:$JUPYTERHUB_VERSION
+FROM jupyterhub/jupyterhub:$JUPYTERHUB_VERSION
 
 # Install dockerspawner, nativeauthenticator
 RUN python3 -m pip install --no-cache-dir \

docker-compose.yml

@@ -17,6 +17,8 @@ services:
     networks:
       - jupyterhub-network
     volumes:
+      # The JupyterHub configuration file
+      - "./jupyterhub_config.py:/srv/jupyterhub/jupyterhub_config.py:ro"
       # Bind Docker socket on the host so we can connect to the daemon from
       # within the container
       - "/var/run/docker.sock:/var/run/docker.sock:rw"