Merge pull request #11265 from k-alin/6606-k-alin-mysql-unix-socket

Enable MySQL unix socket connection

static/defaults.config.php

@@ -37,6 +37,11 @@ return [
 		// Can be used instead of adding a port number to the hostname
 		'port' => null,
 
+		// socket (String)
+                // Socket of the database server.
+                // Can be used instead of adding a socket location to the hostname
+                'socket' => '',
+
 		// user (String)
 		// Database user name. Please don't use "root".
 		'username' => '',

static/env.config.php

@@ -26,6 +26,7 @@ return [
 	'MYSQL_USERNAME' => ['database', 'username'],
 	'MYSQL_USER'     => ['database', 'username'],
 	'MYSQL_PORT'     => ['database', 'port'],
+	'MYSQL_SOCKET'   => ['database', 'socket'],
 	'MYSQL_PASSWORD' => ['database', 'password'],
 	'MYSQL_DATABASE' => ['database', 'database'],