Locust fails with unknown flag

[JamesLaverack]

Running the load test gives an error: no such option: --num-request message and exits.

Reproduction

1. Install locust as per instructions pip install locustio
2. Execute runLocust.sh with arguments

or, using Docker

1. Build docker image as per instructions docker build -t load-test .
2. Execute docker run load-test with arguments

Expected Behavior

Locust executes.

Actual Behavior

The following error:

$ ./runLocust.sh -h sock-shop.example.com -c 5 -r 10                                                                    
Default Locust file: locustfile.py
Will run locustfile.py against sock-shop.example.com. Spawning 5 clients and 10 total requests.
Usage: locust [options] [LocustClass [LocustClass2 ... ]]

locust: error: no such option: --num-request
done

or, using Docker

$ docker run load-test -h sock-shop.example.com -c 5 -r 10                
Locust file: /config/locustfile.py
Will run /config/locustfile.py against sock-shop.example.com. Spawning 5 clients and 10 total requests.
Usage: locust [options] [LocustClass [LocustClass2 ... ]]

locust: error: no such option: --num-request
done

Environment

Tool	Version
Python	Python 2.7.15rc1
Locust	Locust 0.11.0
Docker	18.09.2

[JamesLaverack]

A couple of workarounds are possible. The https://hub.docker.com/r/weaveworksdemos/load-test image is available and appears to work:

docker run weaveworksdemos/load-test:0.1.1 -h sock-shop.example.com -c 5 -r 10

You can also ignore the run script and execute locust directly. The change appears to be moving from --num-request to --run-time:

locust --host=http://sock-shop.example.com -f locustfile.py --clients 10 --hatch-rate=5 --run-time=1m --no-web --only-summary