Staring docker service fails when 0.0.0.0/0 is in list of docker_service_port_filters[].allowed_subnets

Summary

Staring docker service fails when 0.0.0.0/0 is in list of docker_service_port_filters[].allowed_subnets.

Steps to reproduce

run docker serivce with

docker_service_port_filters:
  - external_port: 32123
    allowed_subnets: 
      - "0.0.0.0/0"

Expected behavior

Starting service should succeed.

Actual behavior

Starting service fails.

Workaround

docker_service_port_filters:
  - external_port: 32123
    allowed_subnets:
      - "0.0.0.0/1"
      - "128.0.0.0/1"

Additional informations

https://bugzilla.redhat.com/show_bug.cgi?id=1297092