最终效果图:sql
1 在instance表中添加字段 D:\queenDashboard\nova\db\sqlalchemy\api_migrations\migrate_repo\versions\004_add_request_spec.py 使用nova-manage db sync 命令便可修改数据库。以下图数据库
2 在D:\queenDashboard\horizon-stable-queens\openstack_dashboard\dashboards\admin\instances\tables.pyapi
3 horizon中api包中功能,对内为界面提供调用,对外提供调用novaclient 代码。spa
D:\queenDashboard\horizon-stable-queens\openstack_dashboard\api\nova.py3d
4 horizon api将调用命令发给novaclient ,novaclient再转给nova api处理调用D:\queenDashboard\nova\api\openstack\compute\servers.pyserver
5为了让nova返回的信息中包含添加的ha_enabled字段 在该文件中添加如图所示代码。blog
6 D:\queenDashboard\nova\db\sqlalchemy\models.py中添加sqlalchemy
7 D:\queenDashboard\nova\objects\instance.py 中添加io