Switch from gunicorn to granian (#540)

I've chosen to start with 2 workers to support the 2 cores we get on GOV PaaS. When we migrate to the DBT Platform we will need to revisit the granian config.

Procfile

@@ -1,2 +1,2 @@
-web: python manage.py migrate --noinput && python manage.py clearcache && python manage.py collectstatic --noinput && gunicorn config.wsgi:application --config config/gunicorn.py --worker-class gevent --worker-connections 1000 --bind 0.0.0.0:$PORT --timeout 300 --log-file -
+web: python manage.py migrate --noinput && python manage.py clearcache && python manage.py collectstatic --noinput && granian --interface wsgi config.wsgi:application --workers 2 --host 0.0.0.0 --port $PORT
 worker: celery  -A config worker -l info

config/settings/paas.py

@@ -4,6 +4,8 @@
 from .base import *
 
 
+SECURE_PROXY_SSL_HEADER = ("HTTP_X_FORWARDED_PROTO", "https")
+
 # TODO (DWPF-1696): Remove ECS formatter
 LOGGING["handlers"]["console"]["formatter"] = "ecs"
 

docker-compose.yml

@@ -10,6 +10,7 @@ services:
       - DATABASE_URL=psql://postgres:postgres@db:5432/fido
       - CELERY_BROKER_URL=rediss://redis:redis@redis:6379/0
     command: python manage.py runserver 0.0.0.0:8000
+    # command: granian --interface wsgi config.wsgi:application --workers 2 --host 0.0.0.0 --port 8000
     ports:
       - "0.0.0.0:8000:8000"
     volumes:

pyproject.toml

@@ -28,7 +28,6 @@ django-staff-sso-client = "^4.2.2"
 django-tables2 = "^2.4.0"
 djangorestframework = "^3.15.2"
 elastic-apm = "^6.2.2"
-gunicorn = "^22.0.0"
 psycopg2 = "^2.8.6"
 django-chunk-upload-handlers = "^0.0.14"
 sentry-sdk = "^2.8.0"
@@ -39,6 +38,7 @@ django-storages = "^1.14.2"
 openpyxl = "^3.0.5"
 requests = "^2.32.0"
 redis = "^5.0.3"
+granian = "^1.6.3"
 
 # Are these packages still needed?
 django-import-export = "^3.3.07"
@@ -49,8 +49,6 @@ django-log-formatter-asim = "^0.0.4"
 optional = true
 
 [tool.poetry.group.prod.dependencies]
-gevent = "^24.2.1"
-psycogreen = "^1.0.2"
 django-audit-log-middleware = "^0.0.5"
 
 [tool.poetry.group.dev]

requirements.txt

@@ -6,7 +6,6 @@ boto3==1.35.38 ; python_version >= "3.12" and python_version < "4.0"
 botocore==1.35.38 ; python_version >= "3.12" and python_version < "4.0"
 celery==5.4.0 ; python_version >= "3.12" and python_version < "4.0"
 certifi==2024.8.30 ; python_version >= "3.12" and python_version < "4"
-cffi==1.17.1 ; platform_python_implementation == "CPython" and sys_platform == "win32" and python_version >= "3.12" and python_version < "4.0"
 cfgv==3.4.0 ; python_version >= "3.12" and python_version < "4"
 charset-normalizer==3.4.0 ; python_version >= "3.12" and python_version < "4.0"
 click-didyoumean==0.3.1 ; python_version >= "3.12" and python_version < "4.0"
@@ -46,11 +45,9 @@ ecs-logging==2.2.0 ; python_version >= "3.12" and python_version < "4"
 elastic-apm==6.23.0 ; python_version >= "3.12" and python_version < "4"
 et-xmlfile==1.1.0 ; python_version >= "3.12" and python_version < "4.0"
 filelock==3.16.1 ; python_version >= "3.12" and python_version < "4"
-gevent==24.10.2 ; python_version >= "3.12" and python_version < "4.0"
 googleapis-common-protos==1.65.0 ; python_version >= "3.12" and python_version < "4.0"
-greenlet==3.1.1 ; python_version >= "3.12" and python_version < "4.0" and platform_python_implementation == "CPython"
+granian==1.6.3 ; python_version >= "3.12" and python_version < "4.0"
 grpcio==1.66.2 ; python_version >= "3.12" and python_version < "4.0"
-gunicorn==22.0.0 ; python_version >= "3.12" and python_version < "4.0"
 identify==2.6.1 ; python_version >= "3.12" and python_version < "4"
 idna==3.10 ; python_version >= "3.12" and python_version < "4.0"
 importlib-metadata==6.11.0 ; python_version >= "3.12" and python_version < "4.0"
@@ -78,14 +75,12 @@ opentelemetry-sdk-extension-aws==2.0.2 ; python_version >= "3.12" and python_ver
 opentelemetry-sdk==1.22.0 ; python_version >= "3.12" and python_version < "4.0"
 opentelemetry-semantic-conventions==0.43b0 ; python_version >= "3.12" and python_version < "4.0"
 opentelemetry-util-http==0.43b0 ; python_version >= "3.12" and python_version < "4.0"
-packaging==24.1 ; python_version >= "3.12" and python_version < "4.0"
+packaging==24.1 ; python_version >= "3.12" and python_version < "4"
 platformdirs==4.3.6 ; python_version >= "3.12" and python_version < "4"
 pre-commit==3.8.0 ; python_version >= "3.12" and python_version < "4"
 prompt-toolkit==3.0.48 ; python_version >= "3.12" and python_version < "4.0"
 protobuf==4.25.5 ; python_version >= "3.12" and python_version < "4.0"
-psycogreen==1.0.2 ; python_version >= "3.12" and python_version < "4.0"
 psycopg2==2.9.9 ; python_version >= "3.12" and python_version < "4.0"
-pycparser==2.22 ; platform_python_implementation == "CPython" and sys_platform == "win32" and python_version >= "3.12" and python_version < "4.0"
 python-dateutil==2.9.0.post0 ; python_version >= "3.12" and python_version < "4.0"
 pyyaml==6.0.2 ; python_version >= "3.12" and python_version < "4.0"
 redis==5.1.1 ; python_version >= "3.12" and python_version < "4.0"
@@ -100,6 +95,7 @@ tablib[html,ods,xls,xlsx,yaml]==3.5.0 ; python_version >= "3.12" and python_vers
 typing-extensions==4.12.2 ; python_version >= "3.12" and python_version < "4.0"
 tzdata==2024.2 ; python_version >= "3.12" and python_version < "4.0"
 urllib3==2.2.3 ; python_version >= "3.12" and python_version < "4"
+uvloop==0.21.0 ; sys_platform != "win32" and platform_python_implementation == "CPython" and python_version >= "3.12" and python_version < "4.0"
 vine==5.1.0 ; python_version >= "3.12" and python_version < "4.0"
 virtualenv==20.26.6 ; python_version >= "3.12" and python_version < "4"
 wcwidth==0.2.13 ; python_version >= "3.12" and python_version < "4.0"
@@ -108,5 +104,3 @@ wrapt==1.16.0 ; python_version >= "3.12" and python_version < "4"
 xlrd==2.0.1 ; python_version >= "3.12" and python_version < "4.0"
 xlwt==1.3.0 ; python_version >= "3.12" and python_version < "4.0"
 zipp==3.20.2 ; python_version >= "3.12" and python_version < "4.0"
-zope-event==5.0 ; python_version >= "3.12" and python_version < "4.0"
-zope-interface==7.1.0 ; python_version >= "3.12" and python_version < "4.0"