PPHA-369: Add whitenoise for local asset serving in prod

Author: Themitchell

lung_cancer_screening/settings.py

@@ -52,6 +52,7 @@ def boolean_env(key, default=None):
 
 MIDDLEWARE = [
     'django.middleware.security.SecurityMiddleware',
+    "whitenoise.middleware.WhiteNoiseMiddleware",
     'django.contrib.sessions.middleware.SessionMiddleware',
     'django.middleware.common.CommonMiddleware',
     'django.middleware.csrf.CsrfViewMiddleware',
@@ -104,6 +105,11 @@ def boolean_env(key, default=None):
     }
 }
 
+STORAGES = {
+    "staticfiles": {
+        "BACKEND": "whitenoise.storage.CompressedManifestStaticFilesStorage",
+    },
+}
 
 # Password validation
 # https://docs.djangoproject.com/en/5.2/ref/settings/#auth-password-validators

lung_cancer_screening/settings_test.py

@@ -0,0 +1,12 @@
+# ruff: noqa: F403, F405
+from .settings import *
+
+STORAGES = {
+    "staticfiles": {
+        "BACKEND": "django.contrib.staticfiles.storage.StaticFilesStorage",
+    },
+}
+
+MIDDLEWARE.remove(
+    "whitenoise.middleware.WhiteNoiseMiddleware",
+)

poetry.lock

@@ -12,6 +12,7 @@ dependencies = [
     "nhsuk-frontend-jinja (>=0.4.1,<0.5.0)",
     "gunicorn (>=23.0.0,<24.0.0)",
     "python-dateutil (>=2.9.0.post0,<3.0.0)",
+    "whitenoise (>=6.9.0,<7.0.0)",
 ]
 
 [tool.poetry]

pyproject.toml

@@ -17,5 +17,5 @@ cd "$(git rev-parse --show-toplevel)"
 # tests from here. If you want to run other test suites, see the predefined
 # tasks in scripts/test.mk.
 
-docker compose run --rm --remove-orphans web poetry run python manage.py test
+docker compose run --rm --remove-orphans web poetry run python manage.py test --settings=lung_cancer_screening.settings_test