Helm chart query.replicas values are ignored if less than 3

[mikeseese]

What happened:

When I install open-match with the value query.replicas=1, 3 replicase are still instantiated.

What you expected to happen:

I expected for there to only be 1 replica.

How to reproduce it (as minimally and precisely as possible):

helm install open-match --create-namespace --namespace open-match open-match/open-match --set query.replicas=1

Anything else we need to know?:

This is caused because the value global.kubernetes.horizontalPodAutoScaler.query.minReplicas defaults to 3 (https://github.com/googleforgames/open-match/blob/main/install/helm/open-match/values.yaml#L254C1-L254C23), when all other services default to 1. If there is a strong reason why the query service shouldn't be able to go less than 3 replicas in extremely light loads, then there should be some additional documentation on query.replicas to state that this setting must also be reduced if desired.

Output of kubectl version:

Client Version: version.Info{Major:"1", Minor:"26", GitVersion:"v1.26.0", GitCommit:"b46a3f887ca979b1a5d14fd39cb1af43e7e5d12d", GitTreeState:"clean", BuildDate:"2022-12-08T19:58:30Z", GoVersion:"go1.19.4", Compiler:"gc", Platform:"windows/amd64"}
Kustomize Version: v4.5.7
Server Version: version.Info{Major:"1", Minor:"27", GitVersion:"v1.27.3+k3s1", GitCommit:"fe9604cac119216e67f8bd5f14eb5608e3bcd3cf", GitTreeState:"clean", BuildDate:"2023-06-26T16:49:54Z", GoVersion:"go1.20.5", Compiler:"gc", Platform:"linux/amd64"}

Cloud Provider/Platform (AKS, GKE, Minikube etc.):

Rancher Desktop (local)

Open Match Release Version:

1.8.0

Install Method(yaml/helm):

helm