Flask_Practice

Object Detection REST full API Using Keras + Flask + uWSGI + nginx

reference

Environments

• Ubuntu 16.04
• python 3.7
• virtualenv

---

Requirements

• Flask==1.1.1
• h5py==2.10.0
• Keras==2.3.1
• matplotlib==3.1.1
• numpy==1.16.5
• opencv-python==4.1.1.26
• opencv-contrib-python==4.1.1.26
• pandas==0.25.1
• Pillow==6.2.0
• tensorflow-gpu==2.0.0
• tqdm==4.37.0
• uWSGI==2.0.18

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How to Use

• Install library

  $ cd [Path to project]
  $ virtualenv [env_name] --python=python3.7
  $ source [env_name]/bin/activate
  $ pip install -r requirements.txt

• Install Flask, uWSGI, nginx

  $ source [env_name]/bin/activate
  $ pip install Flask
  $ pip install uWSGI
  $ sudo apt install nginx
  
  # nginx status check
  $ sudo service nginx status

• Setting Config

  • Manually

  $ cd setting_files
  
  # systemd uwsgi service setting
  sed "s/\[user_name\]/$USER_NAME/g" flaskapp.service.ori > flaskapp.service
  sed -i "s/\[path_to_project\]/\/home\/$USER_NAME\/keras-flask-api/g" flaskapp.service
  sed -i "s/\[path_to_virtualenv]/\/home\/$USER_NAME\/$ENV_NAME/g" flaskapp.service
  
  sudo cp flaskapp.service /etc/systemd/system/
  rm flaskapp.service
  
  sudo systemctl enable flaskapp
  sudo systemctl start flaskap
  
  # nginx service setting
  sudo cp custom_timeout.conf /etc/nginx/conf.d/
  
  sed "s/\[path_to_project\]/\/home\/$USER_NAME\/keras-flask-api/g" nginx_server.ori > nginx_detection_server
  
  sudo cp nginx_detection_server /etc/nginx/sites-available/
  sudo rm /etc/nginx/sites-enabled/*
  sudo ln -s /etc/nginx/sites-available/nginx_detection_server /etc/nginx/sites-enabled/nginx_detection_server
  
  rm nginx_detection_server

  • Using script

  $ cd setting_files
  $ ./set_config.sh [user name] [virtualenv name]

• Server Operation

  • Manually

  # server start
  $ sudo service nginx start
  $ sudo service flaskapp start
  
  # server stop
  $ sudo service nginx stop
  $ sudo service flaskapp stop
  
  # server restart
  $ sudo service nginx restart
  $ sudo service flaskapp restart
  

  • Using script

  $ cd [path to proejct]
  $ ./server_restart.sh