ec2_eip.py 文件源码

def find_device(ec2, module, device_id, isinstance=True):
    """ Attempt to find the EC2 instance and return it """

    if isinstance:
        try:
            reservations = ec2.get_all_reservations(instance_ids=[device_id])
        except boto.exception.EC2ResponseError as e:
            module.fail_json(msg=str(e))

        if len(reservations) == 1:
            instances = reservations[0].instances
            if len(instances) == 1:
                return instances[0]
    else:
        try:
            interfaces = ec2.get_all_network_interfaces(network_interface_ids=[device_id])
        except boto.exception.EC2ResponseError as e:
            module.fail_json(msg=str(e))

        if len(interfaces) == 1:
            return interfaces[0]

    raise EIPException("could not find instance" + device_id)