Add Redis Channel Layer for the drawing system

Signed-off-by: Emmy D'Anello <emmy.danello@animath.fr>

tfjm/settings.py

@@ -79,6 +79,11 @@ if "test" not in sys.argv:  # pragma: no cover
         'mailer',
     ]
 
+if os.getenv("TFJM_STAGE", "dev") == "prod":  # pragma: no cover
+    INSTALLED_APPS += [
+        'channels_redis',
+    ]
+
 MIDDLEWARE = [
     'django.middleware.security.SecurityMiddleware',
     'django.contrib.sessions.middleware.SessionMiddleware',
@@ -268,7 +273,6 @@ FORBIDDEN_TRIGRAMS = [
     "SEX",
 ]
 
-# TODO: Use a redis server in production
 CHANNEL_LAYERS = {
     "default": {
         "BACKEND": "channels.layers.InMemoryChannelLayer"

tfjm/settings_prod.py

@@ -30,3 +30,12 @@ CSRF_COOKIE_SECURE = False
 CSRF_COOKIE_HTTPONLY = False
 X_FRAME_OPTIONS = 'DENY'
 SESSION_COOKIE_AGE = 60 * 60 * 3
+
+CHANNEL_LAYERS = {
+    "default": {
+        "BACKEND": "channels_redis.core.RedisChannelLayer",
+        "CONFIG": {
+            "hosts": [(os.getenv('REDIS_SERVER_HOST', 'localhost'), os.getenv('REDIS_SERVER_PORT', 6379))],
+        },
+    },
+}