Add docker-compose file to run applications and postgres locally

backend/Dockerfile

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+FROM python:3.8-slim-bullseye
+
+WORKDIR /app
+
+COPY ./requirements.txt /app/requirements.txt
+
+RUN pip install -U --no-cache-dir -r requirements.txt
+
+COPY . /app

backend/requirements.txt

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+Django==3.2.8

docker-compose.yaml

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+version: "3.8"
+
+volumes:
+  local-postgres-data:
+    name: local-postgres-data
+
+services:
+  django-backend:
+    restart: unless-stopped
+    build:
+      context: backend
+      dockerfile: Dockerfile
+    container_name: righttree-backend
+    depends_on:
+      - postgres
+    volumes:
+      - ./backend:/app
+    ports:
+      - "8000:8000"
+    command: bash -c "./manage.py makemigrations; 
+                      ./manage.py migrate; 
+                      ./manage.py runserver 0.0.0.0:8000"
+
+  react-frontend:
+    image: node:16-alpine3.11
+    restart: unless-stopped
+    container_name: righttree-frontend
+    ports:
+      - "3000:3000"
+    volumes:
+      - ./frontend:/app
+    working_dir: /app
+    command: sh -c "npm install; npm start"
+
+  postgres:
+    image: postgis/postgis:13-3.0
+    restart: unless-stopped
+    container_name: postgres
+    volumes:
+      - local-postgres-data:/var/lib/postgresql/data
+    ports:
+      - "5432:5432"
+    environment:
+      - POSTGRES_DB=postgres
+      - POSTGRES_USER=postgres
+      - POSTGRES_PASSWORD=postgres
+