Files
shipyard/shipyard_airflow/dags/deckhand_get_design.py
Anthony Lin 28e112dfdd Update deckHand_get_design Dag
This dag is likely going to be used by Shipyard in actions other
than 'deploy_site'.  Hence we should not be hard-coding values in
the dag as it limits its reusability, e.g. it is likely going to
be used in 'update_site' and in 'redeploy_server' as well.  Hence
there is a need to make use of the values that are passed into the
function instead.

This P.S. is meant to correct the current behavior.

Change-Id: Ia88e91dbb114c34530e3240f120df8c11325090b
2017-10-09 01:10:11 +00:00

68 lines
2.3 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.
from airflow.models import DAG
from airflow.operators import DeckhandOperator
from airflow.operators.subdag_operator import SubDagOperator
# Location of shiyard.conf
config_path = '/usr/local/airflow/plugins/shipyard.conf'
def get_design_version(parent_dag_name, child_dag_name, args):
'''
Get Deckhand Design Version
'''
dag = DAG(
'{}.{}'.format(parent_dag_name, child_dag_name),
default_args=args)
# Note that in the event where the 'deploy_site' Action is
# triggered from Shipyard, the 'parent_dag_name' variable
# gets assigned with 'deploy_site.deckhand_get_design_version'.
# This is the name that we want to assign to the subdag so
# that we can reference it for xcom. The name of the main
# dag will be the front part of that value, i.e. 'deploy_site'.
# Hence we will extract the front part and assign it to main_dag.
# We will reuse this pattern for other Actions, e.g. update_site,
# redeploy_site as well.
operator = DeckhandOperator(
task_id=child_dag_name,
shipyard_conf=config_path,
action=child_dag_name,
main_dag_name=parent_dag_name[0:parent_dag_name.find('.')],
sub_dag_name=parent_dag_name,
dag=dag)
return dag
def get_design_deckhand(parent_dag_name, child_dag_name, args):
'''
Puts into atomic unit
'''
dag = DAG(
'{}.{}'.format(parent_dag_name, child_dag_name),
default_args=args)
deckhand_design = SubDagOperator(
subdag=get_design_version(dag.dag_id,
child_dag_name,
args),
task_id=child_dag_name,
dag=dag)
return dag