maxSurge property
A maximum percentage of instances that will be moved in each step of traffic split changes.
When set to a positive value, the server will bring up, at most, that percentage of new instances at a time before moving traffic to them. After moving traffic, the server will bring down instances of the old revision. This can reduce a spike of total active instances during changes from one revision to another but specifying how many extra instances can be brought up at a time.
Optional.
Implementation
core.int? maxSurge;