def CheckGroupWideConflicts()

in container_agent/run_containers.py [0:0]

• 9 lines of code
• 4 McCabe index (conditional complexity)

def CheckGroupWideConflicts(containers):
    # TODO(thockin): we could put other uniqueness checks (e.g. name) here.
    # Make sure not two containers have conflicting host ports.
    host_ports = set()
    for ctr in containers:
        for host_ip, host_port, container_port, protocol in ctr.ports:
            h = (host_ip, host_port, protocol)
            if h in host_ports:
                raise ConfigException(
                    'host port %s is not unique group-wide' % (h, ))
            host_ports.add(h)