Configurare i certificati SSL per la connessione TCP tramite Python

Configura i certificati SSL (Secure Sockets Layer) per una connessione TCP a Cloud SQL per MySQL utilizzando il pacchetto sqlalchemy di Python.

Esempio di codice

Python

Per eseguire l'autenticazione in Cloud SQL per MySQL, configura le Credenziali predefinite dell'applicazione. Per saperne di più, consulta Configura l'autenticazione per un ambiente di sviluppo locale.

import os

import sqlalchemy


def connect_tcp_socket() -> sqlalchemy.engine.base.Engine:
    """Initializes a TCP connection pool for a Cloud SQL instance of MySQL."""
    # Note: Saving credentials in environment variables is convenient, but not
    # secure - consider a more secure solution such as
    # Cloud Secret Manager (https://cloud.google.com/secret-manager) to help
    # keep secrets safe.
    db_host = os.environ[
        "INSTANCE_HOST"
    ]  # e.g. '127.0.0.1' ('172.17.0.1' if deployed to GAE Flex)
    db_user = os.environ["DB_USER"]  # e.g. 'my-db-user'
    db_pass = os.environ["DB_PASS"]  # e.g. 'my-db-password'
    db_name = os.environ["DB_NAME"]  # e.g. 'my-database'
    db_port = os.environ["DB_PORT"]  # e.g. 3306

    connect_args = {}
    # For deployments that connect directly to a Cloud SQL instance without
    # using the Cloud SQL Proxy, configuring SSL certificates will ensure the
    # connection is encrypted.
    if os.environ.get("DB_ROOT_CERT"):
        db_root_cert = os.environ["DB_ROOT_CERT"]  # e.g. '/path/to/my/server-ca.pem'
        db_cert = os.environ["DB_CERT"]  # e.g. '/path/to/my/client-cert.pem'
        db_key = os.environ["DB_KEY"]  # e.g. '/path/to/my/client-key.pem'

        ssl_args = {"ssl_ca": db_root_cert, "ssl_cert": db_cert, "ssl_key": db_key}
        connect_args = ssl_args

    pool = sqlalchemy.create_engine(
        # Equivalent URL:
        # mysql+pymysql://<db_user>:<db_pass>@<db_host>:<db_port>/<db_name>
        sqlalchemy.engine.url.URL.create(
            drivername="mysql+pymysql",
            username=db_user,
            password=db_pass,
            host=db_host,
            port=db_port,
            database=db_name,
        ),
        connect_args=connect_args,
        # ...
    )
    return pool

Passaggi successivi

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