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BME 590 Final Project: Image Processor

Author: Haitong(Tina) Wang
Date: December 13, 2018

This document is for setting up the postgres database and server.py on vcm and local host.

  • ubuntu system 16.04

1.1 Database Instruction

1.1.1 Install postgresql on local machine (already installed in the vcm7506)

sudo apt-get install postgresql

1.1.2 Create new Database

1.1.2.1 Login to postgres (PostgreSQL runs at port 5432 by default )

sudo su -l postgres
psql

1.1.2.2 Create new Database and role

CREATE DATABASE bme590finalproject;
CREATE USER {USERNAME} WITH PASSWORD {PASSWORD};
GRANT ALL PRIVILEGES ON DATABASE bme590finalproject TO {USERNAME};

1.1.2.3 To restore a vanilla setting

DROP DATABASE bme590finalproject;

1.1.3 Check if postgres is active/run and status

sudo systemctl stop postgresql.service
sudo systemctl start postgresql.service
sudo systemctl enable postgresql.service
sudo systemctl status postgresql.service

1.1.4 Update server.py with USERNAME and PASSWORD

engine = create_engine("postgresql://{USERNAME}:{0}@localhost:5432/bme590"
                       "finalproject".format({PASSWORD}), max_overflow=20,
                       client_encoding='utf8')

1.2 VCM Deployment Instruction

sudo apt-get install python3-pip screen
pip3 install virtualenv
git clone {HTTP TO GIT REPOSITORIES} 
virtualenv -p python3 env 
source env/bin/activate
pip install -r requirments.txt
export TIMEOUT = 1800

Down latest ssl-proxy

wget -qO- https://github.com/suyashkumar/ssl-proxy/releases/download/v0.2.2/ssl-proxy-linux-amd64.tar.gz | tar xvz
sudo mv ssl-proxy-linux-amd64 /usr/local/bin/ssl-proxy

Use screen to run proxy and server.py separately

sudo ssl-proxy -from 0.0.0.0:443 -to 127.0.0.1:5001 -domain $YOUR_VCM_DOMAIN_NAME_HERE

gunicorn --bind 127.0.0.1:5001 server:app 

or FLASK_APP=server.py flask run
  • This server is run on vcm-7506.vm.duke.edu