Add files necessary for production deployment

* Dockerfile, docker-compose template
* nginx config
* uwsgi config
* wait-for-postgres script
* requirements.txt
* Some other stuff

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

Dockerfile

@@ -0,0 +1,18 @@
+FROM python:3.10-slim
+
+# required packages
+RUN apt update
+RUN apt install -y postgresql gcc
+
+# app dir
+RUN mkdir /app
+WORKDIR /app
+
+# python packages
+COPY requirements.txt .
+RUN python3 -m pip install -r requirements.txt
+
+# cmd
+CMD scripts/wait-for-postgres.sh db python3 manage.py migrate && \
+    yes yes | python3 manage.py collectstatic && \
+    uwsgi --ini uwsgi.ini