Reaching out for a bit of help/understanding of an issue I'm encountering while trying to point a flask application at a custom URL. Before this application was moved to a remote server and added to docker, it was being developed locally and could be accessed with: http://127.0.0.1:5000/.
A DNS entry was created for this custom URL. Trying to point the application at the URL results in: Cannot assign requested address. I've researched this error and haven't come across anything that helps me out in my situation.
Docker file:
FROM python:3.9-bullseye
ADD . /PIE
WORKDIR /PIE
RUN pip install -r requirements.txt
CMD ["python3", "app.py"]
Docker compose file:
version: "3"
services:
app:
build: .
command: python app.py
ports:
- "5060:5060"
volumes:
- .:/PIE
Code snippet:
from flask import Flask, url_for, render_template, request, redirect, session
from flask_wtf.csrf import CSRFProtect
from data import dat_a
app = Flask(__name__)
app.register_blueprint(dat_a)
csrf = CSRFProtect(app)
csrf.init_app(app)
app = Flask(__name__)
@app.route('/', methods=['GET'])
def index():
if session.get('logged_in'):
return render_template('home.html')
else:
return render_template('index.html')
if __name__ == '__main__':
app.secret_key = 'xxxx'
app.run(debug=True, host='mysite.org', port=5060)
I have tried the following:
if __name__ == '__main__':
app.secret_key = 'xxxx'
app.config['SERVER_NAME'] = 'mysite.org'
app.run()
============================================
if __name__ == '__main__':
app.secret_key = 'xxxx'
url = 'mysite.org:5060'
app.config['SERVER_NAME'] = url
app.run()
If I do something like:
if __name__ == '__main__':
app.secret_key = 'xxxx'
app.run(debug=True, host='localhost', port=5060)
It works just fine which makes me think the docker container is set only looking at the local side? I've also tried using gunicorn3 to create a WSGI server and push it out of a development server.
Environment:
- Nginx for a proxy manager
- Docker installed on a remote server (using portainer as a gui interface)
