NodeDeployStage

准备阶段

流量下线

流量检查

执行更新

健康检查

流量上线

检查可用以及结束

并非一个阶段，而是一个完成的事件

Returns a representation of an immutable list of all enum entries, in the order they're declared.

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Returns an array containing the constants of this enum type, in the order they're declared.