Fix potential NGINX static file permission errors

DEVELOPING.md

@@ -16,6 +16,8 @@ you've done the setup setups in "Running Tests", etc.
 Running Tests
 -------------
 
+`scos-sensor` depends on python3.6+.
+
 Ideally, you should add a test that covers any new feature that you add. If
 you've done that, then running the included test suite is the easiest way to
 check that everything is working. Either way, all tests should be run after

docker-compose.yml

@@ -15,7 +15,7 @@ services:
     healthcheck:
       test: test ! -e /sdr_unhealthy && test ! -e /scheduler_dead
       interval: 10s
-      timeout: 1s
+      timeout: 3s
       retries: 1
     restart: always
     depends_on:
@@ -45,19 +45,14 @@ services:
       - '8000'
     volumes:
       - ${REPO_ROOT}:/opt/scos-sensor
-      # Uncomment to see code changes by restarting docker container (without rebuilding)
-      # - ./src:/src:ro
-      # - ./gunicorn:/gunicorn:ro
-      # - ./entrypoints:/entrypoints:ro
-      # - ./scripts:/scripts:ro
     cap_add:
       - SYS_PTRACE
     devices:
       - /dev/bus/usb:/dev/bus/usb:rw
     command: /entrypoints/api_entrypoint.sh
 
   nginx:
-    image: nginx:1.16-alpine
+    image: smsntia/nginx:${DOCKER_TAG} # DOCKER_TAG will always be 'latest' for GitHub source
     restart: always
     ports:
       - '80:80'
@@ -68,9 +63,11 @@ services:
       < /etc/nginx/nginx.conf.template
       > /etc/nginx/conf.d/default.conf
       && exec nginx -g 'daemon off;'"
+    build:
+      context: .
+      dockerfile: docker/Dockerfile-nginx
     volumes:
       - ./nginx/conf.template:/etc/nginx/nginx.conf.template:ro
-      - ./src/static:/var/www/scos-sensor/static:ro
       - ${SSL_CERT_PATH}:/etc/ssl/certs/ssl-cert.pem:ro
       - ${SSL_KEY_PATH}:/etc/ssl/private/ssl-cert.key:ro
     environment:

docker/Dockerfile-nginx

@@ -0,0 +1,5 @@
+FROM nginx:1.17-alpine
+
+RUN mkdir -p /var/www/scos-sensor/static
+COPY --chown=nginx:nginx ./src/static/ /var/www/scos-sensor/static/
+COPY --chown=root:root ./nginx/conf.template /etc/nginx/nginx.conf.template

src/sensor/urls.py

@@ -17,6 +17,7 @@
 
 """
 
+from django.conf.urls.static import static
 from django.contrib import admin
 from django.urls import include, path, re_path
 from django.views.generic import RedirectView
@@ -51,15 +52,19 @@
 # Text to put at the top of the admin index page.
 admin.site.index_title = "SCOS Sensor Configuration Portal"
 
-urlpatterns = (
+urlpatterns = [
     path("", RedirectView.as_view(url="/api/")),
     path("admin/", admin.site.urls),
     path("api/", RedirectView.as_view(url="/api/{}/".format(DEFAULT_API_VERSION))),
     re_path(API_PREFIX, include(api_urlpatterns)),
     path("api/auth/", include("rest_framework.urls")),
-)
+]
 
 if settings.DEBUG:
     import debug_toolbar
 
-    urlpatterns = [path("__debug__/", include(debug_toolbar.urls))] + list(urlpatterns)
+    urlpatterns = (
+        [path("__debug__/", include(debug_toolbar.urls))]
+        + list(urlpatterns)
+        + static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
+    )