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path: root/functest/utils/openstack_tacker.py
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###########################################################################
# Copyright (c) 2016 Ericsson AB and others.
# Author: George Paraskevopoulos <geopar@intracom-telecom.com>
#
# Wrappers for trozet's python-tackerclient v1.0
# (https://github.com/trozet/python-tackerclient)
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##########################################################################


from tackerclient.v1_0 import client as tackerclient
import functest.utils.functest_logger as ft_logger
import functest.utils.openstack_utils as os_utils
import yaml

logger = ft_logger.Logger("tacker_utils").getLogger()


def get_tacker_client():
    creds_tacker = os_utils.get_credentials('tacker')
    return tackerclient.Client(**creds_tacker)


# *********************************************
#   TACKER
# *********************************************
def get_id_from_name(tacker_client, resource_type, resource_name):
    try:
        req_params = {'fields': 'id', 'name': resource_name}
        endpoint = '/{0}s'.format(resource_type)
        resp = tacker_client.get(endpoint, params=req_params)
        return resp[endpoint[1:]][0]['id']
    except Exception, e:
        logger.error("Error [get_id_from_name(tacker_client, "
                     "resource_type, resource_name)]: %s" % e)
        return None


def get_vnfd_id(tacker_client, vnfd_name):
    return get_id_from_name(tacker_client, 'vnfd', vnfd_name)


def get_vnf_id(tacker_client, vnf_name):
    return get_id_from_name(tacker_client, 'vnf', vnf_name)


def get_sfc_id(tacker_client, sfc_name):
    return get_id_from_name(tacker_client, 'sfc', sfc_name)


def get_sfc_classifier_id(tacker_client, sfc_clf_name):
    return get_id_from_name(tacker_client, 'sfc_classifier', sfc_clf_name)


def list_vnfds(tacker_client, verbose=False):
    try:
        vnfds = tacker_client.list_vnfds(retrieve_all=True)
        if not verbose:
            vnfds = [vnfd['id'] for vnfd in vnfds['vnfds']]
        return vnfds
    except Exception, e:
        logger.error("Error [list_vnfds(tacker_client)]: %s" % e)
        return None


def create_vnfd(tacker_client, tosca_file=None):
    try:
        vnfd_body = {}
        if tosca_file is not None:
            with open(tosca_file) as tosca_fd:
                vnfd_body = yaml.safe_load(tosca_fd)
        return tacker_client.create_vnfd(body=vnfd_body)
    except Exception, e:
        logger.error("Error [create_vnfd(tacker_client, '%s')]: %s"
                     % (tosca_file, e))
        return None


def delete_vnfd(tacker_client, vnfd_id=None, vnfd_name=None):
    try:
        vnfd = vnfd_id
        if vnfd is None:
            if vnfd_name is None:
                raise Exception('You need to provide VNFD id or VNFD name')
            vnfd = get_vnfd_id(tacker_client, vnfd_name)
        return tacker_client.delete_vnfd(vnfd)
    except Exception, e:
        logger.error("Error [delete_vnfd(tacker_client, '%s', '%s')]: %s"
                     % (vnfd_id, vnfd_name, e))
        return None


def list_vnfs(tacker_client, verbose=False):
    try:
        vnfs = tacker_client.list_vnfs(retrieve_all=True)
        if not verbose:
            vnfs = [vnf['id'] for vnf in vnfs['vnfs']]
        return vnfs
    except Exception, e:
        logger.error("Error [list_vnfs(tacker_client)]: %s" % e)
        return None


def create_vnf(tacker_client, vnf_name, vnfd_id=None, vnfd_name=None):
    try:
        vnf_body = {
            'vnf': {
                'attributes': {},
                'name': vnf_name
            }
        }
        if vnfd_id is not None:
            vnf_body['vnf']['vnfd_id'] = vnfd_id
        else:
            if vnfd_name is None:
                raise Exception('vnfd id or vnfd name is required')
            vnf_body['vnf']['vnfd_id'] = get_vnfd_id(tacker_client, vnfd_name)
        return tacker_client.create_vnf(body=vnf_body)
    except Exception, e:
        logger.error("error [create_vnf(tacker_client, '%s', '%s', '%s')]: %s"
                     % (vnf_name, vnfd_id, vnfd_name, e))
        return None


def delete_vnf(tacker_client, vnf_id=None, vnf_name=None):
    try:
        vnf = vnf_id
        if vnf is None:
            if vnf_name is None:
                raise Exception('You need to provide a VNF id or name')
            vnf = get_vnf_id(tacker_client, vnf_name)
        return tacker_client.delete_vnf(vnf)
    except Exception, e:
        logger.error("Error [delete_vnf(tacker_client, '%s', '%s')]: %s"
                     % (vnf_id, vnf_name, e))
        return None


def list_sfcs(tacker_client, verbose=False):
    try:
        sfcs = tacker_client.list_sfcs(retrieve_all=True)
        if not verbose:
            sfcs = [sfc['id'] for sfc in sfcs['sfcs']]
        return sfcs
    except Exception, e:
        logger.error("Error [list_sfcs(tacker_client)]: %s" % e)
        return None


def create_sfc(tacker_client, sfc_name,
               chain_vnf_ids=None,
               chain_vnf_names=None):
    try:
        sfc_body = {
            'sfc': {
                'attributes': {},
                'name': sfc_name,
                'chain': []
            }
        }
        if chain_vnf_ids is not None:
            sfc_body['sfc']['chain'] = chain_vnf_ids
        else:
            if chain_vnf_names is None:
                raise Exception('You need to provide a chain of VNFs')
            sfc_body['sfc']['chain'] = [get_vnf_id(tacker_client, name)
                                        for name in chain_vnf_names]
        return tacker_client.create_sfc(body=sfc_body)
    except Exception, e:
        logger.error("error [create_sfc(tacker_client, '%s', '%s', '%s')]: %s"
                     % (sfc_name, chain_vnf_ids, chain_vnf_names, e))
        return None


def delete_sfc(tacker_client, sfc_id=None, sfc_name=None):
    try:
        sfc = sfc_id
        if sfc is None:
            if sfc_name is None:
                raise Exception('You need to provide an SFC id or name')
            sfc = get_sfc_id(tacker_client, sfc_name)
        return tacker_client.delete_sfc(sfc)
    except Exception, e:
        logger.error("Error [delete_sfc(tacker_client, '%s', '%s')]: %s"
                     % (sfc_id, sfc_name, e))
        return None


def list_sfc_clasifiers(tacker_client, verbose=False):
    try:
        sfc_clfs = tacker_client.list_sfc_classifiers(retrieve_all=True)
        if not verbose:
            sfc_clfs = [sfc_clf['id']
                        for sfc_clf in sfc_clfs['sfc_classifiers']]
        return sfc_clfs
    except Exception, e:
        logger.error("Error [list_sfc_classifiers(tacker_client)]: %s" % e)
        return None


def create_sfc_classifier(tacker_client, sfc_clf_name, sfc_id=None,
                          sfc_name=None, match={}):
    # Example match:
    # match: {
    #     "source_port": "0",
    #     "protocol": "6",
    #     "dest_port": "80"
    # }
    try:
        sfc_clf_body = {
            'sfc_classifier': {
                'attributes': {},
                'name': sfc_clf_name,
                'match': match,
                'chain': ''
            }
        }
        if sfc_id is not None:
            sfc_clf_body['sfc_classifier']['chain'] = sfc_id
        else:
            if sfc_name is None:
                raise Exception('You need to provide an SFC id or name')
            sfc_clf_body['sfc']['chain'] = get_sfc_id(tacker_client, sfc_name)
        return tacker_client.create_sfc_classifier(body=sfc_clf_body)
    except Exception, e:
        logger.error("error [create_sfc_classifier(tacker_client, '%s', '%s', "
                     "'%s')]: %s" % (sfc_clf_name, sfc_id, sfc_name, match, e))
        return None


def delete_sfc_classifier(tacker_client,
                          sfc_clf_id=None,
                          sfc_clf_name=None):
    try:
        sfc_clf = sfc_clf_id
        if sfc_clf is None:
            if sfc_clf_name is None:
                raise Exception('You need to provide an SFC'
                                'classifier id or name')
            sfc_clf = get_sfc_classifier_id(tacker_client, sfc_clf_name)
        return tacker_client.delete_sfc_classifier(sfc_clf)
    except Exception, e:
        logger.error("Error [delete_sfc_classifier(tacker_client, '%s', "
                     "'%s')]: %s" % (sfc_clf_id, sfc_clf_name, e))
        return None