Reference documentation and code samples for the Compute Engine v1 API enum InstanceGroupManagerUpdatePolicy.Types.MinimalAction.
Minimal action to be taken on an instance. Use this option to minimize disruption as much as possible or to apply a more disruptive action than is necessary. - To limit disruption as much as possible, set the minimal action to REFRESH. If your update requires a more disruptive action, Compute Engine performs the necessary action to execute the update. - To apply a more disruptive action than is strictly necessary, set the minimal action to RESTART or REPLACE. For example, Compute Engine does not need to restart a VM to change its metadata. But if your application reads instance metadata only when a VM is restarted, you can set the minimal action to RESTART in order to pick up metadata changes.
Additional supported values which may be not listed in the enum directly due to technical reasons:
NONE
REFRESH
REPLACE
RESTART
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28 UTC."],[[["\u003cp\u003eThe latest version of the \u003ccode\u003eInstanceGroupManagerUpdatePolicy.Types.MinimalAction\u003c/code\u003e is 3.6.0, with other available versions ranging from 1.0.0 to 3.5.0.\u003c/p\u003e\n"],["\u003cp\u003eThis enum defines the minimal action to be taken on an instance during updates, allowing for options that limit disruption or apply more disruptive actions.\u003c/p\u003e\n"],["\u003cp\u003eSupported minimal action values include \u003ccode\u003eNONE\u003c/code\u003e, \u003ccode\u003eREFRESH\u003c/code\u003e, \u003ccode\u003eREPLACE\u003c/code\u003e, and \u003ccode\u003eRESTART\u003c/code\u003e, and setting the minimal action to \u003ccode\u003eREFRESH\u003c/code\u003e will limit disruption.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eUndefinedMinimalAction\u003c/code\u003e field indicates that the enum field is not set, and the \u003ccode\u003eInstanceGroupManagerUpdatePolicy.Types.MinimalAction\u003c/code\u003e enum resides in the \u003ccode\u003eGoogle.Cloud.Compute.V1\u003c/code\u003e namespace.\u003c/p\u003e\n"]]],[],null,[]]