updates docker-compose format to version 2 #483

{{cookiecutter.repo_name}}/dev.yml

@@ -1,3 +1,5 @@
+version: '2'
+services:
   postgres:
     image: postgres:9.5
     volumes:
@@ -6,9 +8,12 @@ postgres:
       - /data/dev/{{cookiecutter.repo_name}}/postgres:/var/lib/postgresql/data
 
   django:
+    build:
+      context: .
       dockerfile: Dockerfile-dev
-  build: .
     command: python /app/manage.py runserver_plus 0.0.0.0:8000
+    depends_on:
+      - postgres
     volumes:
       - .:/app
     ports:

{{cookiecutter.repo_name}}/docker-compose.yml

@@ -1,3 +1,5 @@
+version: '2'
+services:
   postgres:
     image: postgres:9.5
     volumes:
@@ -5,13 +7,17 @@ postgres:
     env_file: .env
 
   django:
-  build: .
+    build:
+      context: .
     user: django
     links:
       - postgres
       - redis
     command: /gunicorn.sh
     env_file: .env
+    depends_on:
+      - postgres
+      - redis
 
   nginx:
     build: ./compose/nginx
@@ -24,20 +30,28 @@ redis:
     image: redis:3.0
   {% if cookiecutter.use_celery == 'y' %}
   celeryworker:
-  build: .
+    build:
+      context: .
     user: django
     env_file: .env
     links:
      - postgres
      - redis
     command: celery -A {{cookiecutter.repo_name}}.taskapp worker -l INFO
+    depends_on:
+      - postgres
+      - redis
 
   celerybeat:
-  build: .
+    build:
+      context: .
     user: django
     env_file: .env
     links:
       - postgres
       - redis
     command: celery -A {{cookiecutter.repo_name}}.taskapp beat -l INFO
+    depends_on:
+      - postgres
+      - redis
   {% endif %}