Update the Dockerfile to expose websockets

The Dockerfile now uses ASGI by default (via uvicorn) and embeds a
redis server that is used for the synchronization.

Dockerfile

@@ -1,12 +1,12 @@
 # This part installs deps needed at runtime.
-FROM python:3.11-slim AS common
+FROM python:3.11-slim AS runtime
 
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
         tini \
-        uwsgi \
         sqlite3 \
         libpq-dev \
+        redis-server \
         gdal-bin \
         && \
     apt-get autoremove -y && \
@@ -14,7 +14,7 @@ RUN apt-get update && \
     rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
 # This part adds deps needed only at buildtime.
-FROM common AS build
+FROM runtime AS build
 
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
@@ -39,9 +39,9 @@ WORKDIR /srv/umap
 
 COPY . /srv/umap
 
-RUN /venv/bin/pip install .[docker,s3]
+RUN /venv/bin/pip install .[docker,s3,sync]
 
-FROM common
+FROM runtime
 
 COPY --from=build /srv/umap/docker/ /srv/umap/docker/
 COPY --from=build /venv/ /venv/

docker/entrypoint.sh

@@ -2,6 +2,7 @@
 set -eo pipefail
 
 source /venv/bin/activate
+service redis-server start
 
 # collect static files
 umap collectstatic --noinput
@@ -9,5 +10,5 @@ umap collectstatic --noinput
 umap wait_for_database
 # then migrate the database
 umap migrate
-# run uWSGI
-exec uwsgi --ini docker/uwsgi.ini
+# run the server
+exec uvicorn --proxy-headers --no-access-log umap.asgi:application

pyproject.toml

@@ -65,7 +65,7 @@ test = [
   "moto[s3]==5.1.1"
 ]
 docker = [
-  "uwsgi==2.0.28",
+  "uvicorn==0.34.0",
 ]
 s3 = [
   "django-storages[s3]==1.14.5",
@@ -73,6 +73,7 @@ s3 = [
 sync = [
   "pydantic==2.10.6",
   "redis==5.2.1",
+  "websockets==15.0.1",
 ]
 
 [project.scripts]