use database url for docker

Author: copelco

docker-compose.yml

@@ -3,13 +3,14 @@ version: '3'
 services:
   db:
     restart: always
-    image: mdillon/postgis:9.3-alpine
+    image: mdillon/postgis:9.6-alpine
     volumes:
       - ./pgdata:/var/lib/postgresql/data
     expose:
       - "5432"
   app:
-    env_file: .env
+    environment:
+      DATABASE_URL: postgis://postgres@db:5432/postgres
     build:
       context: .
       dockerfile: ./compose/django/Dockerfile

eatsmart/settings/docker.py

@@ -1,12 +1,5 @@
 from eatsmart.settings.dev import *   # noqa
 
-# Override settings here
-DATABASES = {
-    'default': {
-        'ENGINE': 'django.contrib.gis.db.backends.postgis',
-        'NAME': 'postgres',
-        'USER': 'postgres',
-        'HOST': 'db',
-        'PORT': 5432,
-    }
-}
+import dj_database_url
+
+DATABASES['default'].update(dj_database_url.config())

requirements/base.txt

@@ -15,3 +15,4 @@ BeautifulSoup4==4.4.0
 django-leaflet==0.18.1
 requests==2.2.1
 whitenoise==3.3.0
+dj-database-url==0.4.2

requirements/production.txt

@@ -1,4 +1,3 @@
 -r base.txt
 python3-memcached==1.51
-dj-database-url==0.4.2
 gunicorn==19.7.1