[Nginx] Use jinja2 for templating nginx configuration

data/Dockerfiles/nginx/Dockerfile

@@ -0,0 +1,18 @@
+FROM nginx:alpine
+LABEL maintainer "The Infrastructure Company GmbH <info@servercow.de>"
+
+ENV PIP_BREAK_SYSTEM_PACKAGES=1
+
+RUN apk add --no-cache nginx \
+  python3 \
+  py3-pip && \
+  pip install --upgrade pip && \
+  pip install Jinja2
+
+RUN mkdir -p /etc/nginx/includes
+
+COPY ./bootstrap.py /
+COPY ./docker-entrypoint.sh /
+
+ENTRYPOINT ["/docker-entrypoint.sh"]
+CMD ["nginx", "-g", "daemon off;"]