// Form the subnetIds to use on the cluster from either:
    //  - subnetIds
    //  - A combination of privateSubnetIds and/or publicSubnetIds.
    if (args.subnetIds !== undefined) {
        clusterSubnetIds = args.subnetIds;
    } else if (args.publicSubnetIds !== undefined || args.privateSubnetIds !== undefined) {
        clusterSubnetIds = pulumi.all([
            args.publicSubnetIds || [],
            args.privateSubnetIds || [],
        ]).apply(([publicIds, privateIds]) => {
            return [...publicIds, ...privateIds];
        });
    }