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This article shows you how to operate Terminate Instance, the content is concise and easy to understand, can definitely brighten your eyes, through the detailed introduction of this article, I hope you can get something.

Send a request to nova-api

The customer (either an OpenStack end user or another program) sends a request to API (nova-api): "help me delete this Instance"

View log / opt/stack/logs/n-api.log

Nova-api sends messages

Nova-api sends a message to Messaging (RabbitMQ): "Delete this Instance" source code is at / opt/stack/nova/nova/compute/api.py and the method is _ do_force_delete.

Nova-compute executes the operation

View log / opt/stack/logs/n-cpu.log

Close instance

Delete the image file of instance

Release other resources such as virtual networks

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