Ensure correct ownership of an existing datadir

Author: ltangvald

5.5/docker-entrypoint.sh

@@ -90,6 +90,8 @@ if [ "$1" = 'mysqld' ]; then
                 fi
 		echo 'MySQL init process done. Ready for start up.'
 	fi
+
+	chown -R mysql:mysql "$DATADIR"
 fi
 
 exec "$@"

5.6/docker-entrypoint.sh

@@ -89,6 +89,8 @@ if [ "$1" = 'mysqld' ]; then
                 fi
 		echo 'MySQL init process done. Ready for start up.'
 	fi
+
+	chown -R mysql:mysql "$DATADIR"
 fi
 
 exec "$@"

5.7/docker-entrypoint.sh

@@ -93,6 +93,8 @@ if [ "$1" = 'mysqld' ]; then
                 fi
 		echo 'MySQL init process done. Ready for start up.'
 	fi
+
+	chown -R mysql:mysql "$DATADIR"
 fi
 
 exec "$@"