公开(公告)号：US20140365668A1

公开(公告)日：2014-12-11

申请号：US14473037

申请日：2014-08-29

Applicant: Amazon Technologies, Inc.

Inventor： AVINASH JAISINGHANI ,  RETO KRAMER ,  CHRISTOPHER WHITAKER ,  NISHANTH SHANKARAN ,  JAYKUMAR H. GOSAR ,  JEFFREY L. BAKER ,  DANIEL OSIECKI ,  DANNY RABBANI ,  PRASHANT JAYARAMAN ,  VENKATES P. BALAKRISHNAN ,  ADAM M. THOMAS

IPC: H04L12/923 ,  H04L12/24

CPC classification number: H04L47/762 ,  G06F8/65 ,  H04L41/0816

Abstract: Techniques are described that enable a user to upgrade a stack of resources by providing a template that reflects the desired end state of the stack. Upon receiving a new template, the system automatically detects changes that should be performed and determines the order in which the changes should be performed. The system can also detect if the desired changes to the stack are a result of direct modifications; because parameters to the resources have changed; or the changes are indirectly caused by other dependency/attribute changing. Additionally, the system determines whether the changes require creating new resources or if the changes can be made to the resources live. In case of replacement of resources, the system will first create the new resource, move that new resource into the stack and remove the old resource(s). In case of failures, the system ensures that the stack rolls back to the initial state.

Abstract translation: 描述了使得用户能够通过提供反映堆栈的期望结束状态的模板来升级资源堆栈的技术。 系统收到新模板后，会自动检测应执行的更改，并确定应执行更改的顺序。 系统还可以检测对堆栈的所需更改是否是直接修改的结果; 因为资源的参数已经改变了; 或更改间接地由其他依赖/属性更改引起。 此外，系统确定更改是否需要创建新资源，或者是否可以对资源进行更改。 在更换资源的情况下，系统将首先创建新资源，将该新资源移入堆栈并删除旧的资源。 在故障的情况下，系统确保堆栈回滚到初始状态。