Adding Dockerfile to application

Dockerfile

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+FROM python:alpine3.7
+
+# #Installing requirements for Pillow
+RUN apk --update add libxml2-dev libxslt-dev libffi-dev gcc musl-dev libgcc openssl-dev curl
+RUN apk add jpeg-dev zlib-dev freetype-dev lcms2-dev openjpeg-dev tiff-dev tk-dev tcl-dev
+
+WORKDIR /app
+
+COPY requirements.txt /app
+RUN pip install -r requirements.txt
+
+COPY . /app 
+
+WORKDIR /app/traveller
+
+RUN mkdir instance
+RUN touch instance/config.py
+
+RUN python manage.py initialise
+RUN python manage.py db migrate
+RUN python manage.py db upgrade
+
+CMD ["python", "manage.py", "rundebug"]

docker-compose.yml

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+version: '3.8'
+
+services:
+  mysqldb:
+    image: mysql
+    restart: unless-stopped
+    environment:
+      MYSQL_ROOT_PASSWORD: password
+      MYSQL_DATABASE: db_name
+      MYSQL_USER: username
+    ports:
+      - 3306:3306
+    volumes:
+      - db:/var/lib/mysql
+  adminer:
+    image: adminer
+    restart: always
+    ports:
+      - 8080:8080
+  maildev:
+    image: maildev/maildev
+    ports:
+      - 1080:1080
+      - 1025:1025
+    environment:
+      MAILDEV_WEB_USER: admin
+      MAILDEV_WEB_PASS: password
+      MAILDEV_INCOMING_USER: ''
+      MAILDEV_INCOMING_PASS: ''
+      MAILDEV_WEB_PORT: 1080
+      MAILDEV_SMTP_PORT: 1025
+    volumes:
+      - mail-maildev-data:/var/lib/maildev
+  app:
+    depends_on:
+      - mysqldb
+      - maildev
+    build: ./
+    restart: unless-stopped
+    ports:
+      - 5000:5000
+    stdin_open: true
+    tty: true
+
+volumes: 
+  db:
+  mail-maildev-data: