Ephemeral pool size not matching

[jgilnom-san]

Hi all.

I deployed ephemeral github runners with this module with a size of 2 and max_size of 2 too. But when I go to the launched instances, I got 6 instances created and running. I cannot find why 6 and no 2 and what is not working. Could someone tell me?

Mi configuration is:
module "github-runner" {
source = "philips-labs/github-runner/aws"
version = "v0.40.2"

aws_region = eu-west-1
vpc_id = xxxx
subnet_ids = [xxxx]

environment = dev

github_app = {
key_base64 = data.aws_secretsmanager_secret_version.key_base64_version.secret_string
id = xxxx
webhook_secret = random_id.random.hex
}

webhook_lambda_zip = module.lambdas.files[0]
runners_lambda_zip = module.lambdas.files[1]
runner_binaries_syncer_lambda_zip = module.lambdas.files[2]

enable_organization_runners = true

userdata_template = "./templates/user-data.sh"

instance_types = ["t4g.small","t3a.medium"]

enable_ssm_on_runners = true
runner_extra_labels = "dev,amazon-linux"

runners_maximum_count = 2

pool_runner_owner = xxxxx
pool_config = [{
size = 2
schedule_expression = "cron(* * * * ? )"
}]
enable_ephemeral_runners = true
enable_job_queued_check = true
log_level = "debug"
scale_down_schedule_expression = "cron( * * * ? *)"
delay_webhook_event = 0
minimum_running_time_in_minutes = 60

enabled_userdata = true

tags = local.required_tags
}