Shulou(Shulou.com)05/31 Report--

This article will explain in detail how to delete an example of openstack. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

Terminate instance from the dashboard page

1. Delete Profil

/ etc/libvirt/qemu/instance-0000000*.xml

two。 Delete the response file directory

/ var/lib/nova/instances/instance-0000000*

3.

Modify the database

1) modify the deleted_at,deleted,vm_state,terminated_at field in the instance table. The three fields of power_state,root_device_name,task_state in the manual operation are not modified.

Manual operations are as follows:

Update instances set

Deleted_at = updated_at

Deleted = 1

Power_state = 0

Vm_state = "deleted"

Terminated_at = updated_at

Root_device_name = NULL

Task_state = NULL

Where id = 9

2) the record of the response instanceid in the virtual_interfaces table is deleted. Manual operations are as follows:

Delete from virtual_interfaces where instance_id=9

3) modify the deleted_at and deleted fields in the instance_info_caches table. The manual operation is as follows

Update instance_info_caches set

Deleted_at = updated_at

Deleted = 1

Where instaceid = 9

4) modify the instance_id,allocated,virtual_interface_id and leased fields in the fixed_ips table. The manual operation is as follows

Update fixed_ips set

Instance_id = NULL

Allocated = 0

Leased= 0

Virtual_interface_id = NULL

Where instanceid = 9

Note:

Changes in the fixed_ IP table when creating an instance

Modify the instance_id,allocated,virtual_interface_id field in the fixed_ips table. Instance_id

Allocated=1

Leased=1

Virtual_interface_id=select id from virtual_interfaces where instance_id=9

The manual operation is as follows

Update fixed_ips set

Instance_id = instanceid

Allocated = 1

Leased = 1

Virtual_interface_id = select id from virtual_interfaces where instance_id=9

Where id = 9

5) deleted_at deleted fields in the security_group_instance_ association table

Note:

Changes to the security_group_instance_ association table when creating an instance

Insert into `nova`.`security _ group_instance_ association`

(`created_ at`

`deleted`

`id`

`security_group_ id`

`instance_ id`)

Values ('created_at'

'0'

'id'

'1'

'9'); `

This is the end of the article on "how to delete an instance of openstack". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.