e6bc5d0767
Currently, the `ArmadaGetReleasesOperator` does not save any releases retrieved from the environment. In order to add future functionality that invokes Helm tests for all releases, deployed releases must be cataloged. This commit adds a method, `get_releases`, to the Armada base operator and updates existing plugins to utilize it. Additionally, this change moves the retrieval of tiller information before the Armada client is fetched in order to limit subsequent calls to the `get_tiller_info` method. Change-Id: Ib4aaec762d509994ce90460d0854e526280c4592
162 lines
5.7 KiB
Python
162 lines
5.7 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 logging
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from urllib.parse import urlparse
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from airflow.exceptions import AirflowException
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from airflow.plugins_manager import AirflowPlugin
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from airflow.utils.decorators import apply_defaults
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import armada.common.client as client
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import armada.common.session as session
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from armada.exceptions import api_exceptions as errors
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try:
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from get_k8s_pod_port_ip import get_pod_port_ip
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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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from xcom_pusher import XcomPusher
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except ImportError:
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from shipyard_airflow.plugins.get_k8s_pod_port_ip import get_pod_port_ip
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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.plugins.xcom_pusher import XcomPusher
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LOG = logging.getLogger(__name__)
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class ArmadaBaseOperator(UcpBaseOperator):
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"""Armada Base Operator
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All armada related workflow operators will use the aramda
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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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query={},
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svc_session=None,
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svc_token=None,
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*args, **kwargs):
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"""Initialization of ArmadaBaseOperator object.
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:param query: A dictionary containing explicit query string parameters
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:param svc_session: Keystone Session
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:param svc_token: Keystone Token
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The Armada operator assumes that prior steps have set xcoms for
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the action and the deployment configuration
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"""
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super(ArmadaBaseOperator,
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self).__init__(
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pod_selector_pattern=[{'pod_pattern': 'armada-api',
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'container': 'armada-api'}],
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*args, **kwargs)
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self.query = query
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self.svc_session = svc_session
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self.svc_token = svc_token
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@shipyard_service_token
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def run_base(self, context):
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# Set up xcom_pusher to push values to xcom
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self.xcom_pusher = XcomPusher(self.task_instance)
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# Logs uuid of action performed by the Operator
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LOG.info("Armada Operator for action %s", self.action_id)
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# Set up armada client
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self.armada_client = self._init_armada_client(
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self.endpoints.endpoint_by_name(service_endpoint.ARMADA),
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self.svc_token
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)
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# Retrieve Tiller Information
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# TODO(@drewwalters96): This should be explicit. Refactor in
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# conjunction with `get_pod_port_ip` decorator.
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self.get_tiller_info(pods_ip_port={})
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@staticmethod
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def _init_armada_client(armada_svc_endpoint, svc_token):
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LOG.info("Armada endpoint is %s", armada_svc_endpoint)
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# Parse Armada Service Endpoint
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armada_url = urlparse(armada_svc_endpoint)
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# Build a ArmadaSession with credentials and target host
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# information.
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LOG.info("Build Armada Session")
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a_session = session.ArmadaSession(host=armada_url.hostname,
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port=armada_url.port,
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scheme='http',
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token=svc_token,
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marker=None)
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# Raise Exception if we are not able to set up the session
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if a_session:
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LOG.info("Successfully Set Up Armada Session")
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else:
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raise AirflowException("Failed to set up Armada Session!")
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# Use the ArmadaSession to build a ArmadaClient that can
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# be used to make one or more API calls
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LOG.info("Create Armada Client")
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_armada_client = client.ArmadaClient(a_session)
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# Raise Exception if we are not able to build armada client
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if _armada_client:
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LOG.info("Successfully Set Up Armada client")
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return _armada_client
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else:
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raise AirflowException("Failed to set up Armada client!")
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def get_releases(self):
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"""Retrieve all deployed releases"""
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try:
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get_releases_resp = self.armada_client.get_releases(
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query=self.query,
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timeout=self.dc['armada.get_releases_timeout']
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)
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return get_releases_resp['releases']
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except errors.ClientError as client_error:
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# Dump logs from Armada pods
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self.get_k8s_logs()
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raise AirflowException(client_error)
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@get_pod_port_ip('tiller', namespace='kube-system')
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def get_tiller_info(self, pods_ip_port={}):
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# Assign value to the 'query' dictionary so that we can pass
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# it via the Armada Client
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self.query['tiller_host'] = pods_ip_port['tiller']['ip']
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self.query['tiller_port'] = pods_ip_port['tiller']['port']
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class ArmadaBaseOperatorPlugin(AirflowPlugin):
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"""Creates ArmadaBaseOperator in Airflow."""
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name = 'armada_base_operator_plugin'
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operators = [ArmadaBaseOperator]
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