Deploy your Python Web program to an Ubuntu server

In this document I have documented the process of deploying the Flask Web site in Ubuntu, which includes user creation, code acquisition, installation of the PYTHON3 environment, virtual environment settings, Uwsgi startup program settings, and Nginx as the front-end reverse proxy. I hope to be of some help to you.

Create a Python Web program dedicated account

123	AddUser haseovim/etc/sudoers #将haseo用户加入导sudo用户清单中sudo usermod -a-g www-data Haseo

Install Python3 and configure the program to run the environment

1. Update the Ubuntu Software Library

123	sudo apt-get updatesudo apt-get-y upgradesudo apt-get install build-essential libssl-dev libffi-dev python3-dev #安装一些 The necessary toolkit

2. Install Python package management tool

python3 -Vsudo apt-get install -y python3-pippip3 install virtualenv

Configure Python programs

1. Create a program directory

mkdir -p /var/www/html/pricing-service

2. Modify Directory Permissions

sudo chown haseo:haseo /var/www/html/pricing-service

3. Create an SSH key that allows users to synchronize GitHub's code

ssh-keygencat ~/.ssh/id_rsa.pub # 复制公钥并增加到GitHub(https://github.com/settings/keys)

4. Copy the code on GitHub

git clone [email protected] .

5. Create a log directory

mkdir log

6. Create a virtual directory

1234	PIP3 Install virtualenvpython3-m virtualenv venv # executes in Pricing-service directory ./venv/bin/pip install-r Requirements . Txt./venv/bin/pip Install Uwsgi

Configure Uwsgi

1. Test if Python directly runs the program to access

vim ~/myproject/wsgi.pyfrom flask import Flaskapp = Flask(__name__)@app.route("/")def hello():    return "

2. Create a WSGI Portal file

vim ~/myproject/wsgi.pyfrom myproject import appif __name__ == "__main__": app.run()

3. Test whether the UWSGI is running properly

uwsgi --socket 0.0.0.0:5000 --protocol=http -w wsgi:app

4. Create a UWSGI configuration file
We started to create the Uwsgi configuration file after the previous test.

vim ~/myproject/wsgi.ini[uwsgi]module = wsgi:appmaster = trueprocesses = 5socket = socket.sockchmod-socket = 660vacuum = truedie-on-term = true

5. Create a SYSTEMD file

sudo vim /etc/systemd/system/price_service.service[Unit]Description=uWSGI instance to serve price_serviceAfter=network.target[Service]User=haseoGroup=www-dataWorkingDirectory=/var/www/html/pricing-serviceEnvironment="PATH=/var/www/html/pricing-service/venv/bin"ExecStart=/var/www/html/pricing-service/venv/bin/uwsgi --ini wsgi.ini[Install]WantedBy=multi-user.target

6. Start and enable the WSGI service

sudo systemctl start price_servicesudo systemctl enable price_service

Configure Nginx

1. Installing Nginx

apt-get install nginx

2.Nginx Status View and process management

123456

Systemctl status Nginxip addr show Eth0 | grep inet | awk ' {print $;} ' | sed ' s/\/.*$//' #获取服务器的IP地址 sudo systemctl start Nginxsudo systemctl Reloa D nginxsudo systemctl disable Nginx # elegant nginx start sudo systemctl enable Nginx when system starts

3. Configure Nginx Site

vim /etc/nginx/sites-available/defaultserver {        listen 8080; #监听IP        real_ip_header X-Forwarded-For;        set_real_ip_from 127.0.0.1; # 告诉Python程序是谁发送的请求        server_name localhost;        location / { # 用户访问的根目录比如 http://www.bihell.com/                include uwsgi_params; # Flask程序需要uwsgi解析                uwsgi_pass unix:/var/www/html/pricing-service/socket.sock; #uwsgi通过这个文件传递信息                uwsgi_modifier1 30;        }        # 404错误页面配置,下同        error_page 404 /404.html;        location = /404.html {                root /usr/share/nginx/html;        }        error_page 500 502 503 504 /50x.html;        location = /50x.html {        root /usr/share/nginx/html;  }}

4. Soft link Nginx sites-enabled directory

sudo ln -s /etc/nginx/sites-available/default /etc/nginx/sites-enabled

5. Test Configuration

sudo nginx -t

6. Restart Nginx is done

sudo systemctl restart nginx

Deploy your Python Web program to an Ubuntu server