Ruby is an interpreted, high-level, general-purpose programming language which supports multiple programming paradigms.
apt update ; apt-get install ruby -y
whereis ruby
which ruby
nano helloworld.rb
#!/usr/bin/ruby
# Hello world ruby program
puts "Hello World!";
ruby helloworld.rb
( or )
chmod u+x helloworld.rb
./helloworld.rb
Executing Ruby one liner - ruby -e 'puts "Hello World!\n"'
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in This Tutorial you will Learn " How To Install Flask with Gunicorn and Nginx on Oracle Linux 9"
Flask is a web application framework written in Python.
Gunicorn is a WSGI server.
NGINX is open source software for web serving, reverse proxying, caching, load balancing, media streaming, and more.
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Server - Os: Oracle Linux Server 9.0 64Bit | IP -192.168.1.50 |Hostname - server.testbox.com
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cat /etc/system-release ; hostname ; hostname -I ; dnf groupinstall "Development Tools" -y
sudo dnf update ; sudo dnf install epel-release -y
sudo dnf install python3-pip python3-devel gcc -y
dnf install nginx -y
nginx -version
dnf install --assumeyes python3-pip
pip3 install virtualenv
sudo update-crypto-policies --set LEGACY
sudo reboot
sudo mkdir /sample_project && cd /sample_project
sudo chmod 777 /sample_project
virtualenv projectenv
source projectenv/bin/activate
pip3 install gunicorn flask
pip install --upgrade pip
nano /sample_project/helloworld.py
from flask import Flask
app = Flask(__name__)
@app.route('/')
def hello_world():
return "<h1 style='color:red'>Hello, World!</h1>"
if __name__ == '__main__':
app.run(host='0.0.0.0')
sudo firewall-cmd --add-port=5000/tcp --permanent ; sudo firewall-cmd --reload
python helloworld.py
http://127.0.0.1:5000
nano /sample_project/wsgi.py
from helloworld import app
if __name__ == "__main__":
app.run()
firewall-cmd --add-port=8000/tcp --permanent ; firewall-cmd --reload
python helloworld.py
http://0.0.0.0:8000
deactivate
gunicorn --bind 0.0.0.0:8000 wsgi:app
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