ec2_vol.py 文件源码

def get_volume(module, ec2):
    name = module.params.get('name')
    id = module.params.get('id')
    zone = module.params.get('zone')
    filters = {}
    volume_ids = None

    # If no name or id supplied, just try volume creation based on module parameters
    if id is None and name is None:
        return None

    if zone:
        filters['availability_zone'] = zone
    if name:
        filters = {'tag:Name': name}
    if id:
        volume_ids = [id]
    try:
        vols = ec2.get_all_volumes(volume_ids=volume_ids, filters=filters)
    except boto.exception.BotoServerError as e:
        module.fail_json(msg = "%s: %s" % (e.error_code, e.error_message))

    if not vols:
        if id:
            msg = "Could not find the volume with id: %s" % id
            if name:
                msg += (" and name: %s" % name)
            module.fail_json(msg=msg)
        else:
            return None

    if len(vols) > 1:
        module.fail_json(msg="Found more than one volume in zone (if specified) with name: %s" % name)
    return vols[0]