diff --git a/django-cas-server/Dockerfile b/django-cas-server/Dockerfile
new file mode 100644
index 0000000..04052cb
--- /dev/null
+++ b/django-cas-server/Dockerfile
@@ -0,0 +1,21 @@
+FROM python:3-buster
+
+ENV PYTHONUNBUFFERED 1
+ENV DJANGO_DB_NAME=cas
+ENV DJANGO_DB_HOST=postgres
+ENV DJANGO_DB_USER=cas
+ENV DJANGO_HOST=cas.auro.re
+ENV DJANGO_CAS_LDAP_SERVER=10.128.0.11
+ENV DJANGO_CAS_LDAP_USER=cn=cas,ou=service-users,dc=auro,dc=re
+ENV DJANGO_CAS_LDAP_BASE_DN=cn=Utilisateurs,dc=auro,dc=re
+
+RUN mkdir /code
+WORKDIR /code
+
+COPY requirements.txt /code/
+RUN pip install -r requirements.txt
+
+COPY . /code/
+
+ENTRYPOINT ["./entrypoint.sh"]
+EXPOSE 8000
diff --git a/django-cas-server/cas/__init__.py b/django-cas-server/cas/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/django-cas-server/cas/settings.py b/django-cas-server/cas/settings.py
new file mode 100644
index 0000000..313ada1
--- /dev/null
+++ b/django-cas-server/cas/settings.py
@@ -0,0 +1,176 @@
+"""
+Django settings for cas project.
+
+Generated by 'django-admin startproject' using Django 1.11.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/1.11/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/1.11/ref/settings/
+"""
+
+import os
+
+# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
+BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+
+# Quick-start development settings - unsuitable for production
+# See https://docs.djangoproject.com/en/1.11/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = os.getenv('DJANGO_SECRET_KEY')
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = os.getenv('DJANGO_DEBUG', False)
+
+ALLOWED_HOSTS = [os.getenv('DJANGO_HOST')]
+
+# Suivi des erreurs sur root@
+EMAIL_SUBJECT_PREFIX = "[CAS] "
+ADMINS = (
+    ('Intranet', 'root@crans.org'),
+)
+
+# Application definition
+
+INSTALLED_APPS = [
+    'django.contrib.admin',
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.messages',
+    'django.contrib.staticfiles',
+    'cas_server',
+]
+
+MIDDLEWARE = [
+    'django.middleware.security.SecurityMiddleware',
+    'whitenoise.middleware.WhiteNoiseMiddleware',
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.common.CommonMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    'django.middleware.locale.LocaleMiddleware',
+]
+
+ROOT_URLCONF = 'cas.urls'
+
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': [],
+        'APP_DIRS': True,
+        'OPTIONS': {
+            'context_processors': [
+                'django.template.context_processors.debug',
+                'django.template.context_processors.request',
+                'django.contrib.auth.context_processors.auth',
+                'django.contrib.messages.context_processors.messages',
+            ],
+        },
+    },
+]
+
+WSGI_APPLICATION = 'cas.wsgi.application'
+
+
+# Database
+# https://docs.djangoproject.com/en/1.11/ref/settings/#databases
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.postgresql',
+        'NAME': os.getenv('DJANGO_DB_NAME'),
+        'HOST': os.getenv('DJANGO_DB_HOST'),
+        'USER': os.getenv('DJANGO_DB_USER'),
+        'PASSWORD': os.getenv('DJANGO_DB_PASSWORD'),
+    }
+}
+
+
+# Password validation
+# https://docs.djangoproject.com/en/1.11/ref/settings/#auth-password-validators
+
+AUTH_PASSWORD_VALIDATORS = [
+    {
+        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
+    },
+    {
+        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
+    },
+]
+
+
+# Internationalization
+# https://docs.djangoproject.com/en/1.11/topics/i18n/
+
+LANGUAGE_CODE = 'en-us'
+
+TIME_ZONE = 'UTC'
+
+USE_I18N = True
+
+USE_L10N = True
+
+USE_TZ = True
+
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/1.11/howto/static-files/
+
+STATIC_URL = '/static/'
+
+
+# Below are custom parameters
+
+STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'
+STATICFILES_DIRS = [os.path.join(BASE_DIR, "static")]
+STATIC_ROOT = os.path.join(BASE_DIR, "staticfiles")
+
+CAS_AUTH_CLASS = "cas_server.auth.LdapAuthUser"
+CAS_LDAP_SERVER = os.getenv('DJANGO_CAS_LDAP_SERVER')
+CAS_LDAP_USER = os.getenv('DJANGO_CAS_LDAP_USER')
+CAS_LDAP_PASSWORD = os.getenv('DJANGO_CAS_LDAP_PASSWORD')
+CAS_LDAP_BASE_DN = os.getenv('DJANGO_CAS_LDAP_BASE_DN')
+
+CAS_INFO_MESSAGES_ORDER = ["cas_explained"]
+
+SESSION_COOKIE_AGE = 86400
+SESSION_EXPIRE_AT_BROWSER_CLOSE = True
+SESSION_COOKIE_HTTPONLY = True
+
+LOGGING = {
+    'version': 1,
+    'disable_existing_loggers': False,
+    'formatters': {
+        'cas_syslog': {
+            'format': 'cas: %(levelname)s %(message)s'
+        },
+    },
+    'handlers': {
+        'cas_syslog': {
+            'level': 'INFO',
+            'class': 'logging.handlers.SysLogHandler',
+            'address': '/dev/log',
+            'formatter': 'cas_syslog',
+        },
+    },
+    'loggers': {
+        'cas_server': {
+            'handlers': ['cas_syslog'],
+            'level': 'INFO',
+            'propagate': True,
+        },
+    },
+}
+
diff --git a/django-cas-server/cas/urls.py b/django-cas-server/cas/urls.py
new file mode 100644
index 0000000..f182d34
--- /dev/null
+++ b/django-cas-server/cas/urls.py
@@ -0,0 +1,23 @@
+"""cas URL Configuration
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/1.11/topics/http/urls/
+Examples:
+Function views
+    1. Add an import:  from my_app import views
+    2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
+Class-based views
+    1. Add an import:  from other_app.views import Home
+    2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
+Including another URLconf
+    1. Import the include() function: from django.conf.urls import url, include
+    2. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
+"""
+from django.conf.urls import include, url
+from django.contrib import admin
+
+urlpatterns = [
+    url(r'^admin/', admin.site.urls),
+    url(r'^', include('cas_server.urls', namespace="cas_server")),
+]
+
diff --git a/django-cas-server/cas/wsgi.py b/django-cas-server/cas/wsgi.py
new file mode 100644
index 0000000..804320f
--- /dev/null
+++ b/django-cas-server/cas/wsgi.py
@@ -0,0 +1,16 @@
+"""
+WSGI config for cas project.
+
+It exposes the WSGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/1.11/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "cas.settings")
+
+application = get_wsgi_application()
diff --git a/django-cas-server/entrypoint.sh b/django-cas-server/entrypoint.sh
new file mode 100755
index 0000000..71b0b93
--- /dev/null
+++ b/django-cas-server/entrypoint.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# Collect static files
+python manage.py collectstatic --noinput
+
+# Apply database migrations
+sleep 3  # wait for db
+python manage.py migrate
+
+# Start server
+gunicorn cas.wsgi:application --bind 0.0.0.0:8000 --workers 2 --log-level debug
diff --git a/django-cas-server/manage.py b/django-cas-server/manage.py
new file mode 100755
index 0000000..aff64b6
--- /dev/null
+++ b/django-cas-server/manage.py
@@ -0,0 +1,22 @@
+#!/usr/bin/env python
+import os
+import sys
+
+if __name__ == "__main__":
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "cas.settings")
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError:
+        # The above import may fail for some other reason. Ensure that the
+        # issue is really that Django is missing to avoid masking other
+        # exceptions on Python 2.
+        try:
+            import django
+        except ImportError:
+            raise ImportError(
+                "Couldn't import Django. Are you sure it's installed and "
+                "available on your PYTHONPATH environment variable? Did you "
+                "forget to activate a virtual environment?"
+            )
+        raise
+    execute_from_command_line(sys.argv)
diff --git a/django-cas-server/requirements.txt b/django-cas-server/requirements.txt
new file mode 100644
index 0000000..5ac7318
--- /dev/null
+++ b/django-cas-server/requirements.txt
@@ -0,0 +1,4 @@
+django-cas-server
+gunicorn
+psycopg2
+whitenoise
diff --git a/django-cas-server/static/cas_server/logo.png b/django-cas-server/static/cas_server/logo.png
new file mode 100644
index 0000000..7b12fba
Binary files /dev/null and b/django-cas-server/static/cas_server/logo.png differ
diff --git a/docker-compose.yml b/docker-compose.yml
index 046026b..d18c514 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -57,12 +57,13 @@ services:
   postgres:
     # Don't upgrade PostgreSQL by simply changing the version number
     # You need to migrate the Database to the new PostgreSQL version
+    # When creating for the first time,
+    # you need to create codimd and cas users and databases.
     image: postgres:9.6-alpine
     restart: always
     environment:
-      POSTGRES_USER: codimd
-      POSTGRES_PASSWORD: codimdpass
-      POSTGRES_DB: codimd
+      - POSTGRES_USER=postgres
+      - "POSTGRES_PASSWD=${POSTGRES_PASSWD}"
     volumes:
       - ./postgres_data:/var/lib/postgresql/data
 
@@ -77,3 +78,15 @@ services:
       - ./codimd_uploads_data:/codimd/public/uploads
     depends_on:
       - postgres
+
+  cas:
+    build: django-cas-server
+    restart: always
+    environment:
+      DJANGO_DB_PASSWORD: "${DJANGO_CAS_DB_PASSWORD}"
+      DJANGO_SECRET_KEY: "${DJANGO_CAS_SECRET_KEY}"
+      DJANGO_CAS_LDAP_PASSWORD: "${DJANGO_CAS_LDAP_PASSWORD}"
+    ports:
+      - "8085:8000"
+    depends_on:
+      - postgres