shipyard/shipyard_airflow/control/airflow_trigger_dag.py

55 lines
2.1 KiB
Python

# Copyright 2017 AT&T Intellectual Property. All other rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import falcon
import requests
from dateutil.parser import parse
from .base import BaseResource
class TriggerDagRunResource(BaseResource):
authorized_roles = ['user']
def on_get(self, req, resp, dag_id, conf):
# Retrieve URL
web_server_url = self.retrieve_config('base', 'web_server')
if 'Error' in web_server_url:
resp.status = falcon.HTTP_500
raise falcon.HTTPInternalServerError("Internal Server Error",
"Missing Configuration File")
else:
# "conf" - JSON string that gets pickled into the DagRun's
# conf attribute
req_url = ('{}/admin/rest_api/api?api=trigger_dag&dag_id={}'
'&conf={}'.format(web_server_url, dag_id, conf))
response = requests.get(req_url).json()
# Returns error response if API call returns
# response code other than 200
if response["http_response_code"] != 200:
resp.status = falcon.HTTP_400
resp.body = response["output"]
return
else:
# Returns 201 if action is created successfully
resp.status = falcon.HTTP_201
# Return time of execution so that we can use
# it to query dag/task status
dt = parse(response["response_time"])
resp.body = dt.strftime('%Y-%m-%dT%H:%M:%S')