Instance
Optional. Specifies the preemptibility of the instance group.The default value for master and worker groups is NON_PREEMPTIBLE. This default cannot be changed.The default value for secondary instances is PREEMPTIBLE.
Entries
Preemptibility is unspecified, the system will choose the appropriate setting for each instance group.
Instances are non-preemptible.This option is allowed for all instance groups and is the only valid value for Master and Worker instance groups.
Instances are preemptible.This option is allowed only for secondary worker groups.
Types
Functions
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.