add docker-compose for fast local setup

Dockerfile

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+FROM frolvlad/alpine-python2
+
+WORKDIR /usr/src/app
+
+COPY requirements.txt ./
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+CMD [ "python", "./main.py" ]

docker-compose.yml

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+version: '3.8'
+services:
+  nginx:
+    image: nginx:1.21.1
+    container_name: nginx
+    depends_on:
+      - flask
+    volumes:
+      - ./nginx-docker.conf:/etc/nginx/conf.d/default.conf
+    networks:
+      - my-network
+    ports:
+      - 80:80
+  flask:
+    build:
+      context: ./
+      dockerfile: Dockerfile
+    container_name: hilite
+    networks:
+      - my-network
+
+networks:
+  my-network:

nginx-docker.conf

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+server {
+    root ./static;
+    server_name hilite.dev;
+
+    proxy_set_header Host $host;
+
+    location / {
+        if (-f $request_filename) {
+            access_log off;
+        }
+
+        if (!-f $request_filename) {
+            proxy_pass http://hilite:5000;
+        }
+    }
+}