| 摘要 |
Responsive to a request to invoke a given virtual machine (VM) instance, a base VM instance corresponding to a number of VM instances, including the given VM instance, is retrieved. A VM change file particular to just the given VM instance is also retrieved. The VM change file indicates how the given VM instance varies from the base VM instance. The VM change file is applied to the base VM instance to dynamically generate the given VM instance, and the given VM instance is then invoked. Responsive to a request to subsequently shutdown the given VM instance, the VM change file is updated to reflect how the given VM instance varies from the base VM instance. The given VM instance is then shutdown and deleted.
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