swarm-regulator 0.1.1

The regulator of your Docker Swarm cluster

Swarm Regulator

Regulate your Docker Swarm cluster, with YOUR rules.

TBD

Requirements

• Docker Swarm Mode cluster

Install

TBD

Run

TBD

Example

regulator.py

from swarm_regulator import consumer


def _extract_constraints(service_spec):
    return service_spec["TaskTemplate"]["Placement"].get("Constraints", [])


def has_not_constraints(service_spec) -> bool:
    constraints = _extract_constraints(service_spec)
    return not len(constraints)


async def do_not_schedule_on_gpu(service_spec):
    constraints = _extract_constraints(service_spec) + ["node.labels.gpu!=true"]
    service_spec["TaskTemplate"]["Placement"]["Constraints"] = constraints
    return service_spec


consumer.register_rule(
    "service", has_not_constraints, do_not_schedule_on_gpu,
)

consumer.run()

Run

python regulator.py