Add initial docker & docker-compose configuration

probably doesn't work well yet.

Dockerfile

@@ -0,0 +1,22 @@
+FROM python:3.8-slim
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        make \
+        gcc \
+        git \
+        python3-dev \
+        libffi-dev \
+        libpq-dev \
+        libyaml-dev
+
+ADD src/requirements.txt /requirements.txt
+
+RUN pip3 install -r /requirements.txt
+
+ADD src /fosspay
+RUN cd /fosspay && \
+        make
+
+ENV GUNICORN_CMD_ARGS "--bind 0.0.0.0:5000 --workers 2 --chdir /fosspay"
+
+CMD ["/usr/local/bin/gunicorn", "app:app"]

docker-compose.yml

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+version: "2.4"
+
+networks:
+  fosspay:
+    driver: bridge
+    driver_opts:
+      com.docker.network.bridge.name: br-fosspay
+      com.docker.network.driver.mtu: 1420
+    enable_ipv6: false
+
+volumes:
+  postgres-data:
+
+services:
+  server:
+    restart: always
+    build: .
+    ports:
+      - "5000:5006"
+    networks:
+      - fosspay 
+    links:
+      - postgres
+    volumes:
+      - ./config.ini:/fosspay/config.ini:ro
+    depends_on:
+      - postgres
+
+  postgres:
+    image: postgres:11-alpine
+    restart: always
+    networks:
+      fosspay:
+        aliases:
+          - db
+    volumes:
+      - postgres-data:/var/lib/postgresql/data
+    env_file: env.postgres
+
+  nginx:
+    image: nginx:alpine
+    ports:
+      - 8006:8006
+      - 4448:4448
+    restart: always
+    networks:
+      - fosspay 
+    depends_on:
+      - server
+    volumes:
+      - /etc/localtime:/etc/localtime:ro
+      - ./nginx.conf:/etc/nginx/nginx.conf:ro
+      - ./run/letsencrypt/conf/:/etc/letsencrypt
+      - ./run/letsencrypt/html/:/tmp/letsencrypt
+
+  letsencrypt:
+    image: vdhpieter/letsencrypt-webroot
+    restart: always
+    networks:
+      - fosspay 
+    volumes:
+      - /etc/localtime:/etc/localtime:ro
+      - /var/run/docker.sock:/var/run/docker.sock
+      - ./run/letsencrypt/conf/:/etc/letsencrypt
+      - ./run/letsencrypt/html/:/tmp/letsencrypt
+    env_file: env.letsencrypt