Failure handling for lifecycle blueprint workflows

摘要

An information-technology (IT) blueprint is an executable document that, when executed, can be used to create an IT application such as an e-commerce site. An IT lifecycle blueprint can further be used to manage (e.g., modify) and, ultimately, destroy such an IT application. To this end, an automation engine for the blueprint can include idempotent methods to generate workflows that achieve the same result whether starting from a blank (real or virtual) infrastructure or from a previously populated infrastructure. If a workflow task fails, the workflow that included the task can be re-executed; alternatively, a new workflow can be generated based in part on the application configuration following a fix for the failure.