Locust --config-users incompatibility with --headless

[Hchanni]

Prerequisites

• I am using the latest version of Locust
• I am reporting a bug, not asking a question

Description

I'm trying to run config-users in my CLI using a JSON file that establishes a fixed user count for a class. However, it for some reason will only ramp to 1 user.

The JSON:

[
{
"user_class_name": "BasicHealthCheckScenario2",
"fixed_count": 15
},
]

Command line

locust -f ./locustfiles/user_classes/myfile.py --headless --config-users config2.json --host

Locustfile contents

from locust import FastHttpUser, constant_throughput, task

class BasicHealthCheckScenario(FastHttpUser):
    wait_time = constant_throughput(1)

    @task
    def health(self):
       self.client.get("/health")

Python version

3.9.6

Locust version

2.29.1

Operating system

Mac OS

[Hchanni]

Figured out the issue is that if you don't define your user count with the -u it auto defaults to 1.