Merge branch '6.4' into 7.1

* 6.4:
  Update doctrine.rst on ssl documentation

Author: javiereguiluz

reference/configuration/doctrine.rst

@@ -466,5 +466,84 @@ If the ``dir`` configuration is set and the ``is_bundle`` configuration
 is ``true``, the DoctrineBundle will prefix the ``dir`` configuration with
 the path of the bundle.
 
+SSL Connection with MySQL
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+To securely configure an SSL connection to MySQL in your Symfony application
+with Doctrine, you need to specify the SSL certificate options. Here's how to
+set up the connection using environment variables for the certificate paths:
+
+.. configuration-block::
+
+    .. code-block:: yaml
+
+        doctrine:
+            dbal:
+                url: '%env(DATABASE_URL)%'
+                server_version: '8.0.31'
+                driver: 'pdo_mysql'
+                options:
+                    # SSL private key (PDO::MYSQL_ATTR_SSL_KEY)
+                    1007: '%env(MYSQL_SSL_KEY)%'
+                    # SSL certificate (PDO::MYSQL_ATTR_SSL_CERT)
+                    1008: '%env(MYSQL_SSL_CERT)%'
+                    # SSL CA authority (PDO::MYSQL_ATTR_SSL_CA)
+                    1009: '%env(MYSQL_SSL_CA)%'
+
+    .. code-block:: xml
+
+        <?xml version="1.0" encoding="UTF-8" ?>
+        <container xmlns="http://symfony.com/schema/dic/services"
+            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+            xmlns:doctrine="http://symfony.com/schema/dic/doctrine"
+            xsi:schemaLocation="http://symfony.com/schema/dic/services
+                https://symfony.com/schema/dic/services/services-1.0.xsd
+                http://symfony.com/schema/dic/doctrine
+                https://symfony.com/schema/dic/doctrine/doctrine-1.0.xsd">
+
+            <doctrine:config>
+                <doctrine:dbal
+                    url="%env(DATABASE_URL)%"
+                    server-version="8.0.31"
+                    driver="pdo_mysql">
+
+                    <doctrine:option key="1007">%env(MYSQL_SSL_KEY)%</doctrine:option>
+                    <doctrine:option key="1008">%env(MYSQL_SSL_CERT)%</doctrine:option>
+                    <doctrine:option key="1009">%env(MYSQL_SSL_CA)%</doctrine:option>
+                </doctrine:dbal>
+            </doctrine:config>
+        </container>
+
+    .. code-block:: php
+
+        // config/packages/doctrine.php
+        use Symfony\Config\DoctrineConfig;
+
+        return static function (DoctrineConfig $doctrine): void {
+            $doctrine->dbal()
+                ->connection('default')
+                ->url(env('DATABASE_URL')->resolve())
+                ->serverVersion('8.0.31')
+                ->driver('pdo_mysql');
+
+            $doctrine->dbal()->defaultConnection('default');
+
+            $doctrine->dbal()->option(\PDO::MYSQL_ATTR_SSL_KEY, '%env(MYSQL_SSL_KEY)%');
+            $doctrine->dbal()->option(\PDO::MYSQL_SSL_CERT, '%env(MYSQL_ATTR_SSL_CERT)%');
+            $doctrine->dbal()->option(\PDO::MYSQL_SSL_CA, '%env(MYSQL_ATTR_SSL_CA)%');
+        };
+
+Ensure your environment variables are correctly set in the ``.env.local`` or
+``.env.local.php`` file as follows:
+
+.. code-block:: bash
+
+    MYSQL_SSL_KEY=/path/to/your/server-key.pem
+    MYSQL_SSL_CERT=/path/to/your/server-cert.pem
+    MYSQL_SSL_CA=/path/to/your/ca-cert.pem
+
+This configuration secures your MySQL connection with SSL by specifying the paths to the required certificates.
+
+
 .. _DBAL documentation: https://www.doctrine-project.org/projects/doctrine-dbal/en/current/reference/configuration.html
 .. _`Doctrine Metadata Drivers`: https://www.doctrine-project.org/projects/doctrine-orm/en/current/reference/metadata-drivers.html