I have a paid account and I'm currently working with a Flask web application using Flask-SQLAlchemy and MySQL servers hosted on pythonanywhere. I tried following the following guide to enable remote access to the server: Accessing your MySQL database from outside PythonAnywhere and I currently have this setup: (I am trying to make the setup work on both pythonanywhere and local machines, hence the two connection declarations).
app = Flask(__name__)
connection = f"mysql+mysqlconnector://{os.environ['MYSQL_USER']}:{os.environ['MYSQL_PASSWORD']}@{os.environ['MYSQL_HOSTNAME']}/{os.environ['MYSQL_DATABASE_NAME']}"
app.config['SQLALCHEMY_DATABASE_URI'] = connection
app.config['SQLALCHEMY_ENGINE_OPTIONS'] = {'pool_recycle' : 280}
...
if __name__ == '__main__':
sshtunnel.SSH_TIMEOUT = 5.0
sshtunnel.TUNNEL_TIMEOUT = 5.0
with sshtunnel.SSHTunnelForwarder(
('ssh.pythonanywhere.com'),
ssh_username=os.environ['MYSQL_USER'],
ssh_password=os.environ['PYANYWHERE_PASSWORD'],
remote_bind_address=(os.environ['MYSQL_HOSTNAME'], 3306)
) as tunnel:
connection = f"mysql+mysqlconnector://{os.environ['MYSQL_USER']}:
{os.environ['MYSQL_PASSWORD']}@127.0.0.1:
{tunnel.local_bind_port}/{os.environ['MYSQL_DATABASE_NAME']}"
app.config['SQLALCHEMY_DATABASE_URI'] = connection
app.run(port=8000,debug=True)
This error is outputted in the console upon run but does not seemingly stop the application from running, and according to a few StackOverflow posts seem negligible:
2024-01-02 19:20:26,368| ERROR | Password is required for key /Users/Username/.ssh/id_rsa
The application itself loads for a few minutes until it gives up and returns the following error:
sqlalchemy.exc.DatabaseError: (mysql.connector.errors.DatabaseError) 2003 (HY000): Can't connect to MySQL server on 'iuruoyshao.mysql.pythonanywhere-services.com:3306' (60) (Background on this error at: https://sqlalche.me/e/20/4xp6)
Additionally, the SSH tunnel works when following the linked tutorial in the command line, and I can access the databases:
ssh -L 3306:iuruoyshao.mysql.pythonanywhere-services.com:3306 iuruoyshao@ssh.pythonanywhere.com
Perhaps I need a local bind address when establishing the SSH tunnel? Any help is appreciated!
iuruoyshao
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fjl
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PythonAnywhere staff
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