fix(redis): set persistent_id so phpredis also keeps one socket per connection

Laravel's PhpRedisConnector reads 'persistent' only as a flag and takes
the socket id from 'persistent_id'. predis ignores the key.

Signed-off-by: smarcet <smarcet@gmail.com>

Author: smarcet

config/database.php

@@ -106,7 +106,8 @@
          * REDIS_PERSISTENT=true keeps one TLS socket per connection in each php-fpm worker,
          * so requests skip the TLS handshake. Every connection needs its own persistent id:
          * they share host:port, and a shared socket would let one connection's SELECT
-         * switch the database of another within the same request.
+         * switch the database of another within the same request. predis takes the id from
+         * 'persistent', phpredis from 'persistent_id'; both are set so either client is safe.
          */
 
         'default' => [
@@ -117,6 +118,7 @@
             'timeout' => env('REDIS_TIMEOUT', 30.0),
             'scheme' => env('REDIS_SCHEME', 'tcp'),
             'persistent' => env('REDIS_PERSISTENT', false) ? 'openstackid_default' : false,
+            'persistent_id' => 'openstackid_default',
         ],
 
         'cache' => [
@@ -127,6 +129,7 @@
             'timeout' => env('REDIS_TIMEOUT', 30.0),
             'scheme' => env('REDIS_SCHEME', 'tcp'),
             'persistent' => env('REDIS_PERSISTENT', false) ? 'openstackid_cache' : false,
+            'persistent_id' => 'openstackid_cache',
         ],
 
         'session' => [
@@ -137,6 +140,7 @@
             'timeout' => env('REDIS_TIMEOUT', 30.0),
             'scheme' => env('REDIS_SCHEME', 'tcp'),
             'persistent' => env('REDIS_PERSISTENT', false) ? 'openstackid_session' : false,
+            'persistent_id' => 'openstackid_session',
         ],
 
         'worker' => [
@@ -147,6 +151,7 @@
             'timeout' => env('REDIS_TIMEOUT', 30.0),
             'scheme' => env('REDIS_SCHEME', 'tcp'),
             'persistent' => env('REDIS_PERSISTENT', false) ? 'openstackid_worker' : false,
+            'persistent_id' => 'openstackid_worker',
         ],
         'doctrine_cache' => [
             'host' => env('REDIS_HOST'),
@@ -156,6 +161,7 @@
             'timeout' => env('REDIS_TIMEOUT', 30.0),
             'scheme' => env('REDIS_SCHEME', 'tcp'),
             'persistent' => env('REDIS_PERSISTENT', false) ? 'openstackid_doctrine_cache' : false,
+            'persistent_id' => 'openstackid_doctrine_cache',
         ],
     ],
     'allow_disabled_pk' => env('ALLOW_DISABLED_PK', false),