make docker setup more friendly for dev

Author: hmacdope

devtools/deployment/.env.example

@@ -5,4 +5,6 @@ DATABASE_URL=postgresql://django_traefik:django_traefik@db:5432/django_traefik
 HOST_DOMAIN=localhost
 POSTGRES_USER=django_traefik
 POSTGRES_PASSWORD=django_traefik
-POSTGRES_DB=django_traefik
+POSTGRES_DB=django_traefik
+USER_ID=1000
+GROUP_ID=1000

docker-compose-dev.yml

@@ -2,7 +2,12 @@ version: '3'
 
 services:
   web:
-    build: .
+    build:
+      context: .
+      args:
+        - USER_ID=${USER_ID:?err}
+        - GROUP_ID=${GROUP_ID:?err}
+      dockerfile: Dockerfile
     command:  bash -c "while !</dev/tcp/db/5432; do sleep 1; done; cd argos && gunicorn argos.wsgi:application --bind 0.0.0.0:8000"
     container_name: argos
     volumes: