119 lines
4.0 KiB
Python
119 lines
4.0 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 datetime import timedelta
|
|
|
|
import airflow
|
|
from airflow import DAG
|
|
import failure_handlers
|
|
from preflight_checks import all_preflight_checks
|
|
from validate_site_design import validate_site_design
|
|
from airflow.operators.subdag_operator import SubDagOperator
|
|
from airflow.operators import ConcurrencyCheckOperator
|
|
from airflow.operators import DeckhandOperator
|
|
from airflow.operators import PlaceholderOperator
|
|
from airflow.operators.python_operator import PythonOperator
|
|
"""
|
|
redeploy_server is the top-level orchestration DAG for redeploying a
|
|
server using the Undercloud platform.
|
|
"""
|
|
|
|
PARENT_DAG_NAME = 'redeploy_server'
|
|
DAG_CONCURRENCY_CHECK_DAG_NAME = 'dag_concurrency_check'
|
|
ALL_PREFLIGHT_CHECKS_DAG_NAME = 'preflight'
|
|
DECKHAND_GET_DESIGN_VERSION = 'deckhand_get_design_version'
|
|
VALIDATE_SITE_DESIGN_DAG_NAME = 'validate_site_design'
|
|
|
|
default_args = {
|
|
'owner': 'airflow',
|
|
'depends_on_past': False,
|
|
'start_date': airflow.utils.dates.days_ago(1),
|
|
'email': [''],
|
|
'email_on_failure': False,
|
|
'email_on_retry': False,
|
|
'provide_context': True,
|
|
'retries': 0,
|
|
'retry_delay': timedelta(minutes=1),
|
|
}
|
|
|
|
dag = DAG(PARENT_DAG_NAME, default_args=default_args, schedule_interval=None)
|
|
"""
|
|
Define push function to store the content of 'action' that is
|
|
defined via 'dag_run' in XCOM so that it can be used by the
|
|
Operators
|
|
"""
|
|
|
|
|
|
def xcom_push(**kwargs):
|
|
# Pushes action XCom
|
|
kwargs['ti'].xcom_push(key='action',
|
|
value=kwargs['dag_run'].conf['action'])
|
|
|
|
|
|
action_xcom = PythonOperator(
|
|
task_id='action_xcom', dag=dag, python_callable=xcom_push)
|
|
|
|
concurrency_check = ConcurrencyCheckOperator(
|
|
task_id=DAG_CONCURRENCY_CHECK_DAG_NAME,
|
|
on_failure_callback=failure_handlers.step_failure_handler,
|
|
dag=dag)
|
|
|
|
preflight = SubDagOperator(
|
|
subdag=all_preflight_checks(
|
|
PARENT_DAG_NAME, ALL_PREFLIGHT_CHECKS_DAG_NAME, args=default_args),
|
|
task_id=ALL_PREFLIGHT_CHECKS_DAG_NAME,
|
|
on_failure_callback=failure_handlers.step_failure_handler,
|
|
dag=dag, )
|
|
|
|
get_design_version = DeckhandOperator(
|
|
task_id=DECKHAND_GET_DESIGN_VERSION,
|
|
on_failure_callback=failure_handlers.step_failure_handler,
|
|
dag=dag)
|
|
|
|
validate_site_design = SubDagOperator(
|
|
subdag=validate_site_design(
|
|
PARENT_DAG_NAME, VALIDATE_SITE_DESIGN_DAG_NAME, args=default_args),
|
|
task_id=VALIDATE_SITE_DESIGN_DAG_NAME,
|
|
on_failure_callback=failure_handlers.step_failure_handler,
|
|
dag=dag)
|
|
|
|
site_evacuation = PlaceholderOperator(
|
|
task_id='site_evacuation',
|
|
on_failure_callback=failure_handlers.step_failure_handler,
|
|
dag=dag)
|
|
|
|
drydock_rebuild = PlaceholderOperator(
|
|
task_id='drydock_rebuild',
|
|
on_failure_callback=failure_handlers.step_failure_handler,
|
|
dag=dag)
|
|
|
|
query_node_status = PlaceholderOperator(
|
|
task_id='redeployed_node_status',
|
|
on_failure_callback=failure_handlers.step_failure_handler,
|
|
dag=dag)
|
|
|
|
armada_rebuild = PlaceholderOperator(
|
|
task_id='armada_rebuild',
|
|
on_failure_callback=failure_handlers.step_failure_handler,
|
|
dag=dag)
|
|
|
|
# DAG Wiring
|
|
concurrency_check.set_upstream(action_xcom)
|
|
preflight.set_upstream(concurrency_check)
|
|
get_design_version.set_upstream(preflight)
|
|
validate_site_design.set_upstream(get_design_version)
|
|
site_evacuation.set_upstream(validate_site_design)
|
|
drydock_rebuild.set_upstream(site_evacuation)
|
|
query_node_status.set_upstream(drydock_rebuild)
|
|
armada_rebuild.set_upstream(query_node_status)
|