docs-archive/apache-airflow-providers-google/8.4.0/_sources/connections/gcp_sql.rst.txt

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Google Cloud SQL Connection
===========================

The ``gcpcloudsql://`` connection is used by
:class:`airflow.providers.google.cloud.operators.cloud_sql.CloudSQLExecuteQueryOperator` to perform query
on a Google Cloud SQL database. Google Cloud SQL database can be either
Postgres or MySQL, so this is a "meta" connection type. It introduces common schema
for both MySQL and Postgres, including what kind of connectivity should be used.
Google Cloud SQL supports connecting via public IP or via Cloud SQL Proxy.
In the latter case the
:class:`~airflow.providers.google.cloud.operators.hooks.cloud_sql.CloudSQLHook` uses
:class:`~airflow.providers.google.cloud.operators.hooks.CloudSqlProxyRunner` to automatically prepare
and use temporary Postgres or MySQL connection that will use the proxy to connect
(either via TCP or UNIX socket.

Configuring the Connection
--------------------------

Host (required)
    The host to connect to.

Schema (optional)
    Specify the schema name to be used in the database.

Login (required)
    Specify the user name to connect.

Password (required)
    Specify the password to connect.

Extra (optional)
    Specify the extra parameters (as JSON dictionary) that can be used in Google Cloud SQL
    connection.

    Details of all the parameters supported in extra field can be found in
    :class:`~airflow.providers.google.cloud.operators.hooks.cloud_sql.CloudSQLHook`.

    Example "extras" field:

    .. code-block:: json

       {
          "database_type": "mysql",
          "project_id": "example-project",
          "location": "europe-west1",
          "instance": "testinstance",
          "use_proxy": true,
          "sql_proxy_use_tcp": false
       }

    When specifying the connection as URI (in :envvar:`AIRFLOW_CONN_{CONN_ID}` variable), you should specify
    it following the standard syntax of DB connection, where extras are passed as
    parameters of the URI. Note that all components of the URI should be URL-encoded.

    For example:

    .. code-block:: bash

        export AIRFLOW_CONN_GOOGLE_CLOUD_SQL_DEFAULT='gcpcloudsql://user:XXXXXXXXX@1.1.1.1:3306/mydb?database_type=mysql&project_id=example-project&location=europe-west1&instance=testinstance&use_proxy=True&sql_proxy_use_tcp=False'