fleet: Allow increasing the fleet replicas during a rolling update #3977
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What type of PR is this?
/kind feature
What this PR does / Why we need it:
Addresses #3970 by adding an extra boolean option to the fleet strategy that allows scaling up the replica count based on the
RollingUpdate
settings when patching the fleet config. This allows fleets to behave a bit more like aDeployment
when there is a redeployment. The new feature unblocks fleets that have all their replicas inAllocated
state at the same time that a fleet update is requested. Previously, the newGameServerSet
would get stuck until one of the fleet'sGameServer
was deleted/brought back toReady
state.Which issue(s) this PR fixes:
Closes #3970
Special notes for your reviewer:
I'm not sure if this is a feature that the Agones maintainer want to support moving forward. This feature is useful for some of my use cases and it'd be difficult for me to maintain it ouside this repo. Happy to hear the opinions of others regarding this new functionality.