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# Copyright 2018 Telefonica |
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# |
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# All Rights Reserved. |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); you may |
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# not use this file except in compliance with the License. You may obtain |
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# a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
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# License for the specific language governing permissions and limitations |
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# under the License. |
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""" |
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OSM SDN controller API handling |
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""" |
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from osmclient.common import utils |
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from osmclient.common import wait as WaitForStatus |
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from osmclient.common.exceptions import ClientException |
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from osmclient.common.exceptions import NotFound |
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import json |
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import logging |
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import yaml |
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class SdnController(object): |
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def __init__(self, http=None, client=None): |
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self._http = http |
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self._client = client |
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self._logger = logging.getLogger("osmclient") |
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self._apiName = "/admin" |
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self._apiVersion = "/v1" |
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self._apiResource = "/sdns" |
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self._apiBase = "{}{}{}".format( |
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self._apiName, self._apiVersion, self._apiResource |
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) |
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# SDNC '--wait' option |
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def _wait(self, id, wait_time, deleteFlag=False): |
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self._logger.debug("") |
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self._client.get_token() |
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# Endpoint to get operation status |
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apiUrlStatus = "{}{}{}".format(self._apiName, self._apiVersion, "/sdns") |
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# Wait for status for SDN instance creation/update/deletion |
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if isinstance(wait_time, bool): |
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wait_time = WaitForStatus.TIMEOUT_SDNC_OPERATION |
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WaitForStatus.wait_for_status( |
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"SDNC", |
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str(id), |
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wait_time, |
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apiUrlStatus, |
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self._http.get2_cmd, |
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deleteFlag=deleteFlag, |
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) |
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def _get_id_for_wait(self, name): |
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"""Returns id of name, or the id itself if given as argument""" |
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self._logger.debug("") |
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for sdnc in self.list(): |
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if name == sdnc["_id"]: |
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return sdnc["_id"] |
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for sdnc in self.list(): |
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if name == sdnc["name"]: |
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return sdnc["_id"] |
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return "" |
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def create(self, name, sdn_controller, wait=False): |
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self._logger.debug("") |
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if "config" in sdn_controller and isinstance(sdn_controller["config"], str): |
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sdn_controller["config"] = yaml.safe_load(sdn_controller["config"]) |
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self._client.get_token() |
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http_code, resp = self._http.post_cmd( |
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endpoint=self._apiBase, postfields_dict=sdn_controller |
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) |
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# print('HTTP CODE: {}'.format(http_code)) |
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# print('RESP: {}'.format(resp)) |
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# if http_code in (200, 201, 202, 204): |
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if resp: |
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resp = json.loads(resp) |
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if not resp or "id" not in resp: |
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raise ClientException("unexpected response from server - {}".format(resp)) |
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if wait: |
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# Wait for status for SDNC instance creation |
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self._wait(resp.get("id"), wait) |
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print(resp["id"]) |
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# else: |
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# msg = "" |
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# if resp: |
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# try: |
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# msg = json.loads(resp) |
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# except ValueError: |
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# msg = resp |
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# raise ClientException("failed to create SDN controller {} - {}".format(name, msg)) |
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def update(self, name, sdn_controller, wait=False): |
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self._logger.debug("") |
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if "config" in sdn_controller and isinstance(sdn_controller["config"], str): |
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sdn_controller["config"] = yaml.safe_load(sdn_controller["config"]) |
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self._client.get_token() |
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sdnc = self.get(name) |
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sdnc_id_for_wait = self._get_id_for_wait(name) |
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http_code, resp = self._http.patch_cmd( |
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endpoint="{}/{}".format(self._apiBase, sdnc["_id"]), |
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postfields_dict=sdn_controller, |
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) |
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# print('HTTP CODE: {}'.format(http_code)) |
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# print('RESP: {}'.format(resp)) |
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# if http_code in (200, 201, 202, 204): |
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if wait: |
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# In this case, 'resp' always returns None, so 'resp['id']' cannot be used. |
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# Use the previously obtained id instead. |
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wait_id = sdnc_id_for_wait |
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# Wait for status for VI instance update |
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self._wait(wait_id, wait) |
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# else: |
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# pass |
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# else: |
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# msg = "" |
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# if resp: |
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# try: |
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# msg = json.loads(resp) |
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# except ValueError: |
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# msg = resp |
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# raise ClientException("failed to update SDN controller {} - {}".format(name, msg)) |
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def delete(self, name, force=False, wait=False): |
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self._logger.debug("") |
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self._client.get_token() |
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sdn_controller = self.get(name) |
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sdnc_id_for_wait = self._get_id_for_wait(name) |
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querystring = "" |
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if force: |
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querystring = "?FORCE=True" |
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http_code, resp = self._http.delete_cmd( |
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"{}/{}{}".format(self._apiBase, sdn_controller["_id"], querystring) |
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) |
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# print('HTTP CODE: {}'.format(http_code)) |
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# print('RESP: {}'.format(resp)) |
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if http_code == 202: |
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if wait: |
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# Wait for status for SDNC instance deletion |
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self._wait(sdnc_id_for_wait, wait, deleteFlag=True) |
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else: |
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print("Deletion in progress") |
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elif http_code == 204: |
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print("Deleted") |
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elif resp and "result" in resp: |
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print("Deleted") |
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else: |
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msg = resp or "" |
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# if resp: |
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# try: |
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# msg = json.loads(resp) |
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# except ValueError: |
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# msg = resp |
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raise ClientException( |
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"failed to delete SDN controller {} - {}".format(name, msg) |
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) |
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def list(self, filter=None): |
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"""Returns a list of SDN controllers""" |
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self._logger.debug("") |
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self._client.get_token() |
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filter_string = "" |
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if filter: |
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filter_string = "?{}".format(filter) |
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_, resp = self._http.get2_cmd("{}{}".format(self._apiBase, filter_string)) |
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# print('RESP: {}'.format(resp)) |
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if resp: |
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return json.loads(resp) |
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return list() |
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def get(self, name): |
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"""Returns an SDN controller based on name or id""" |
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self._logger.debug("") |
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self._client.get_token() |
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if utils.validate_uuid4(name): |
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for sdnc in self.list(): |
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if name == sdnc["_id"]: |
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return sdnc |
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else: |
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for sdnc in self.list(): |
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if name == sdnc["name"]: |
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return sdnc |
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raise NotFound("SDN controller {} not found".format(name)) |