Make gunicorn listen to all incoming IPs on Port 8000. This is necessary to use a spearate net with the postgres container.

entrypoint.sh

@@ -3,4 +3,4 @@ source /home/shimatta/kenkyusho/.venv/bin/activate
 cd /home/shimatta/kenkyusho/shimatta_kenkyusho
 python manage.py migrate --settings shimatta_kenkyusho.settings_production
 python manage.py collectstatic --settings shimatta_kenkyusho.settings_production --noinput
-gunicorn -w 4 shimatta_kenkyusho.wsgi:application
+gunicorn -w 4 --bind 0.0.0.0:8000 shimatta_kenkyusho.wsgi:application

shimatta_kenkyusho/shimatta_kenkyusho/settings_production.py

@@ -16,9 +16,13 @@ The following environment variables have to be set:
 - DJANGO_MEDIA_URL
 - DJANGO_MEDIA_ROOT
 - DJANGO_POSTGRESQL_SOCKET
+- DJANGO_POSTGRESQL_PORT
 
 The following can be set
+- DJANGO_POSTGRESQL_PW (assumed empty if missing)
+- DJANGO_POSTGRESQL_USER (assmumed empty if mssing)
 - DJANGO_SECURE_HSTS_SECONDS (defaults to 120)
+- DJANGO_FORCE_DEV_MODE
 
 """
 
@@ -46,8 +50,11 @@ SECRET_KEY = get_env_value('DJANGO_SECRET_KEY')
 
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = False
+if get_env_value('DJANGO_FORCE_DEV_MODE', default=False) == 'True':
+    DEBUG = True
 
-ALLOWED_HOSTS = ['localhost', get_env_value('DJANGO_ALLOWED_HOST')]
+
+ALLOWED_HOSTS = ['127.0.0.1', 'localhost', get_env_value('DJANGO_ALLOWED_HOST')]
 
 
 # Application definition