135 lines
4.7 KiB
Python
135 lines
4.7 KiB
Python
# Copyright 2018 AT&T Intellectual Property. All other rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import configparser
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import logging
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from airflow.utils.decorators import apply_defaults
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from airflow.plugins_manager import AirflowPlugin
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from airflow.exceptions import AirflowException
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from deckhand.client import client as deckhand_client
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try:
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import service_endpoint
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from service_token import shipyard_service_token
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from ucp_base_operator import UcpBaseOperator
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except ImportError:
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from shipyard_airflow.plugins import service_endpoint
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from shipyard_airflow.plugins.service_token import shipyard_service_token
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from shipyard_airflow.plugins.ucp_base_operator import UcpBaseOperator
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from shipyard_airflow.shipyard_const import CustomHeaders
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LOG = logging.getLogger(__name__)
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class DeckhandBaseOperator(UcpBaseOperator):
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"""Deckhand Base Operator
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All deckhand related workflow operators will use the deckhand
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base operator as the parent and inherit attributes and methods
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from this class
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"""
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@apply_defaults
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def __init__(self,
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committed_ver=None,
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deckhandclient=None,
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deckhand_client_read_timeout=None,
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revision_id=None,
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svc_session=None,
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svc_token=None,
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validation_read_timeout=None,
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*args, **kwargs):
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"""Initialization of DeckhandBaseOperator object.
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:param committed_ver: Last committed version
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:param deckhandclient: An instance of deckhand client
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:param deckhand_client_read_timeout: Deckhand client connect timeout
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:param revision_id: Target revision for workflow
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:param svc_session: Keystone Session
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:param svc_token: Keystone Token
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:param validation_read_timeout: Deckhand validation timeout
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"""
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super(DeckhandBaseOperator,
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self).__init__(
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pod_selector_pattern=[{'pod_pattern': 'deckhand-api',
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'container': 'deckhand-api'}],
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*args, **kwargs)
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self.committed_ver = committed_ver
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self.deckhandclient = deckhandclient
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self.deckhand_client_read_timeout = deckhand_client_read_timeout
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self.revision_id = revision_id
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self.svc_session = svc_session
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self.svc_token = svc_token
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self.validation_read_timeout = validation_read_timeout
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@shipyard_service_token
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def run_base(self, context):
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# Read and parse shiyard.conf
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config = configparser.ConfigParser()
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config.read(self.shipyard_conf)
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# Initialize variables
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self.deckhand_client_read_timeout = int(config.get(
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'requests_config', 'deckhand_client_read_timeout'))
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self.validation_read_timeout = int(config.get(
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'requests_config', 'validation_read_timeout'))
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# Logs uuid of Shipyard action
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LOG.info("Executing Shipyard Action %s",
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self.action_id)
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# Create additional headers dict to pass context marker
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# and end user
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addl_headers = {
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CustomHeaders.CONTEXT_MARKER.value: self.context_marker,
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CustomHeaders.END_USER.value: self.user
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}
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# Retrieve Endpoint Information
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self.deckhand_svc_endpoint = self.endpoints.endpoint_by_name(
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service_endpoint.DECKHAND,
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addl_headers=addl_headers
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)
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# update additional headers
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self.svc_session.additional_headers.update(addl_headers)
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LOG.info("Deckhand endpoint is %s",
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self.deckhand_svc_endpoint)
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# Set up DeckHand Client
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LOG.info("Setting up DeckHand Client...")
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# NOTE: The communication between the Airflow workers
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# and Deckhand happens via the 'internal' endpoint.
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self.deckhandclient = deckhand_client.Client(
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session=self.svc_session, endpoint_type='internal')
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if not self.deckhandclient:
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raise AirflowException('Failed to set up deckhand client!')
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class DeckhandBaseOperatorPlugin(AirflowPlugin):
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"""Creates DeckhandBaseOperator in Airflow."""
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name = 'deckhand_base_operator_plugin'
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