Deploy Nginx+Flask+Mongo application using Docker

__project-name
  |__ docker-file
    |__ ningx
      |__ Dockerfile
      |__conf
        |__ nginx.conf
    |__flask
      |__ Dockerfile
      |__ requirements.txt
    |__ mongo
      |__ Dockerfile
      |__ setup.sh
    |__docker-compose.yml
  |__src
    |__ app
      |__ ...
    |__run.py

version: '2.2'
services:
 mongo:
  build: ./mongo
  volumes:
   - "./mongo/db:/data/db"
  restart: always
  ports:
   - "27017:27017"
  environment:
   MONGO_INITDB_ROOT_USERNAME: root
   MONGO_INITDB_ROOT_PASSWORD: 123456
 flask:
  build: ./flask
  links:
   - mongo
  ports:
   - "5000:5000"
  expose:
   - "5000"
  volumes:
   - ../src:/home/web
 nginx:
   build: ./nginx
   links:
    - flask
   volumes:
    - "./nginx/log:/var/log/nginx"
    - "../:/usr/share/nginx/html"
   ports:
    - "80:80"
    - "8080:8080"
    - "443:443"
   restart: always

FROM mongo:3.6
# Set time zone ENV TZ=Asia/Shanghai
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
# Set the working directory ENV WORKDIR /usr/local/work
ENV AUTO_RUN_DIR /docker-entrypoint-initdb.d
ENV INSTALL_MONGO_SHELL setup.sh
RUN mkdir -p $WORKDIR
# Copy the database initialization command COPY ./$INSTALL_MONGO_SHELL $AUTO_RUN_DIR/
RUN chmod +x $AUTO_RUN_DIR/$INSTALL_MONGO_SHELL

#!/bin/bash
mongo <<EOF
use admin;
db.auth('root', '123456');
use dmx_aluminum;
db.createUser({user:'test',pwd:'test',roles:[{role:'readWrite',db:'test'}]});
db.createCollection("user");
EOF

FROM python:3.6
# Set time zone ENV TZ=Asia/Shanghai
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

# Set up the workspace RUN mkdir -p /home/web
WORKDIR /home/web
# Add dependencies ADD requirements.txt /home/web/requirements.txt
RUN pip3 install -i https://pypi.douban.com/simple/ -r requirements.txt

# Use gunicorn to start the application CMD gunicorn -w 4 -b 0.0.0.0:5000 run:app

from app import create_app
app = create_app('default')
app.debug=False
# if __name__ == '__main__':
# app.run()

FROM nginx:1.14
# Set time zone ENV TZ=Asia/Shanghai
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
# Copy configuration COPY conf/nginx.conf /etc/nginx/nginx.conf

user nginx;
worker_processes 1;

error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;

events {
  worker_connections 1024;
}


http {
  include /etc/nginx/mime.types;
  default_type application/octet-stream;

  log_format main '$remote_addr - $remote_user [$time_local] "$request" '
           '$status $body_bytes_sent "$http_referer" '
           '"$http_user_agent" "$http_x_forwarded_for"';

  access_log /var/log/nginx/access.log main;

  sendfile on;
  #tcp_nopush on;

  keepalive_timeout 65;

  # Enable gzip
  gzip on;
  gzip_min_length 1k;
  gzip_buffers 4 16k;
  #gzip_http_version 1.0;
  gzip_comp_level 1;
  gzip_types text/plain application/x-javascript text/css application/xml text/javascript application/x-httpd-php image/jpeg image/gif image/png;
  gzip_vary off;
  gzip_disable "MSIE [1-6]\.";

  server {
    listen 80;
    server_name localhost;
    keepalive_timeout 5;
    root /usr/share/nginx/html;

    location /static/ {
      alias /usr/share/nginx/html/src/app/static/;
    }

    location / {
      # checks for static file, if not found proxy to app
      try_files $uri @flask_app;
    }

    location @flask_app {
      proxy_pass http://192.168.0.2:5000; # Published on Alibaba Cloud, the intranet IP address should be filled in
      proxy_redirect off;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header Host $http_host;
      proxy_set_header X-Real-IP $remote_addr;

      #proxy_buffers 8 32k;
      #proxy_buffer_size 64k;

    }
  }


}

ADD setup.sh /data/setup.sh
RUN chmod +x /data/setup.sh
CMD ["/data/setup.sh"]

MONGODB_SETTINGS = {
    'db': 'test',
    'host': 'mongo', # 127.0.0.1 host address must be the name of the --link you configured 'username': 'test',
    'password': 'test',
    'port': 27017
  }