How to add field ha_enabled in Openstack horizon instance interface

Editor to share with you how to add field ha_enabled to the Openstack horizon instance interface, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Final effect picture:

1 add the field D:\ queenDashboard\ nova\ db\ sqlalchemy\ api_migrations\ migrate_repo\ versions\ 004_add_request_spec.py to the instance table and use the nova-manage db sync command to modify the database. The figure below is as follows

2 in D:\ queenDashboard\ horizon-stable-queens\ openstack_dashboard\ dashboards\ admin\ instances\ tables.py

3 the function in the api package in horizon, which provides internal calls for the interface and external novaclient code for calling.

D:\ queenDashboard\ horizon-stable-queens\ openstack_dashboard\ api\ nova.py

4 horizon api sends the calling command to novaclient, and novaclient transfers it to nova api for processing. Call D:\ queenDashboard\ nova\ api\ openstack\ compute\ servers.py

5 add the code shown in the figure in order for the information returned by nova to include the added ha_enabled field.

6D:\ queenDashboard\ nova\ db\ sqlalchemy\ models.py

7 D:\ queenDashboard\ nova\ objects\ instance.py

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