aws-gamelift-alpha: minSize and maxSize don't work

[wintersieck]

Describe the bug

Setting minSize and maxSize on BuildFleet don't seem to take effect. Example:

const fleet = new gamelift.BuildFleet(this, "Game server fleet", {
  fleetName: id,
  content: build,
  instanceType: ec2.InstanceType.of(
    ec2.InstanceClass.R5,
    ec2.InstanceSize.LARGE
  ),
  desiredCapacity: 1,
  minSize: 1,
  maxSize: 2,
  runtimeConfiguration: {
    serverProcesses: [
      {
        launchPath: "/local/game/GameServer",
        concurrentExecutions: 4,
      },
    ],
  },
});

When deployed, they don't take effect when viewed in the console:

Expected Behavior

minSize and maxSize should work.

Current Behavior

minSize and maxSize don't effect anything when deployed.

Reproduction Steps

See example above.

Possible Solution

No response

Additional Information/Context

No response

CDK CLI Version

2.101.1

Framework Version

No response

Node.js Version

v20.8.1

OS

Ubuntu (WSL2 on Windows 11)

Language

TypeScript

Language Version

5.2.2

Other information

No response

[pahud]

Interesting. Can you check the min property value in the template from cdk synth?

As far as I can tell from here, it should be correctly passed to cloudformation? https://github.com/aws/aws-cdk/blob/b8b6bafc07b0804f6e802ba563ff3b7deaea6eee/packages/%40aws-cdk/aws-gamelift-alpha/lib/build-fleet.ts#L151

[wintersieck]

I had the same thought when I glanced at it (it sure looks right!). Interestingly, the template does show the correct values:

$ cdk synth <stackName> | grep Size
      MaxSize: 2
      MinSize: 1