Fix more local native vs container running issues

Author: doshitan

template/{{app_name}}/docker-compose.yml.jinja

@@ -27,7 +27,19 @@ services:
       - path: ./override.env
         required: false
     environment:
+      # IMPORTANT NOTE
+      #
+      # Only env vars needing tweaked specifically for the container runtime
+      # environment should be defined here.
+      #
+      # Add general local configuration things to local.env
+
+      # Settings for running make inside the container
+      - PY_RUN_APPROACH=local
       - PYTHONPATH=/app/
+
+      # Point to other containers via the internal network
+      - DB_HOST={{ app_name }}-db
     ports:
       - {{ app_local_port }}:{{ app_local_port }}
     volumes:

template/{{app_name}}/local.env.jinja

@@ -44,8 +44,9 @@ API_AUTH_TOKEN=LOCAL_AUTH_12345678
 # DB Environment Variables
 ############################
 
-# Set DB_HOST to localhost if accessing a non-dockerized database
-DB_HOST={{ app_name }}-db
+# Set default for DB_HOST which supports running natively. DB_HOST is overridden
+# in docker-compose.yml when running via the container.
+DB_HOST=localhost
 DB_NAME=app
 DB_USER=app
 DB_SCHEMA=public