Ensure correct ownership of an existing datadir

Author: ltangvald

5.5/docker-entrypoint.sh

@@ -87,6 +87,8 @@ 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

@@ -86,6 +86,8 @@ 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

@@ -88,6 +88,8 @@ if [ "$1" = 'mysqld' ]; then
                 fi
 		echo 'MySQL init process done. Ready for start up.'
 	fi
+
+	chown -R mysql:mysql "$DATADIR"
 fi
 
 exec "$@"