diff --git a/Dockerfile b/Dockerfile
index fa79df821c00a89adc977be7d79e2453733fd479..e8e308e8951ad768c42a7f1e1ef04cf14a4d5ac4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,20 +14,17 @@ RUN apt-get update -qq \
    && rm -rf /var/lib/apt/lists/*
 
 RUN npm install -g configurable-http-proxy
-RUN python3 -m pip install --no-cache-dir jupyterhub jupyterlab jupyterlab-git sudospawner tensorflow jupyterhub-ldapauthenticator
-RUN python3 -m pip install --no-cache-dir pandas seaborn beautifulsoup4 bokeh h5py ipympl scipy ipywidgets folium
+COPY requirements.txt requirements.txt
+RUN python3 -m pip install --no-cache-dir -r requirements.txt
+RUN rm requirements.txt
 
-# RUN groupadd jupyterhub
-# RUN useradd -rm -d /home/rhea -s /bin/bash -G sudo -u 1000 -g jupyterhub rhea
-# RUN usermod -aG shadow rhea
+RUN groupadd jupyterhub
+RUN useradd -rm -d /home/rhea -s /bin/bash -G sudo -u 1000 -g jupyterhub rhea
+RUN usermod -aG shadow rhea
 
 RUN mkdir /etc/jupyterhub
-# RUN chown rhea /etc/jupyterhub
+RUN chown rhea /etc/jupyterhub
 WORKDIR /etc/jupyterhub
-
-RUN jupyterhub --generate-config -f /etc/jupyterhub/jupyterhub_config.py
-
-# USER rhea
-# RUN sudo -u rhea jupyterhub --generate-config
+RUN sudo -u rhea jupyterhub --generate-config -f /etc/jupyterhub/jupyterhub_config.py
 
 CMD [ "jupyterhub", "-f" ,"/etc/jupyterhub/jupyterhub_config.py"]
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000000000000000000000000000000000000..424f2759deca515dd393e8e44af71e88ae4e0212
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,18 @@
+# Jupyter
+jupyterhub
+jupyterlab
+jupyterlab-git
+sudospawner
+jupyterhub-ldapauthenticator
+
+# others 
+tensorflow
+pandas
+seaborn
+beautifulsoup4
+bokeh
+h5py
+ipympl
+scipy
+ipywidgets
+folium
\ No newline at end of file