b66d39e468
The existing OpenStack operator will only work for Python 2.7 Airflow Containers and will fail to function properly for Airflow Containers running on Python 3.x This update will fix the problems with the environment variables. The current assumption is that the shipyard.conf will contain the required information for the OpenStack environment and it will be consumed by Airflow Dag to execute the OpenStack commands. This will likely change in future when DeckHand is ready for integration as the required information will be retrieved from DeckHand instead The xcom portion has been removed as it does not really serve any purpose at the moment. It might get added back in future depending on the needs. Change-Id: I0c5fb56462fdbc43a20897373118f510cbb2e01c
85 lines
2.8 KiB
Python
85 lines
2.8 KiB
Python
# -*- coding: utf-8 -*-
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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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import subprocess
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import os
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import configparser
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from airflow.exceptions import AirflowException
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from airflow.models import BaseOperator
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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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class OpenStackOperator(BaseOperator):
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"""
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Performs OpenStack CLI calls
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:shipyard_conf: Location of shipyard.conf
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:openstack_command: The OpenStack command to be executed
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"""
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@apply_defaults
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def __init__(self,
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shipyard_conf,
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openstack_command=None,
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xcom_push=False,
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*args, **kwargs):
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super(OpenStackOperator, self).__init__(*args, **kwargs)
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self.shipyard_conf = shipyard_conf
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self.openstack_command = openstack_command
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self.xcom_push_flag = xcom_push
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def execute(self, context):
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logging.info("Running OpenStack Command: %s", self.openstack_command)
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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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# Construct Envrionment variables
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for attr in ('OS_AUTH_URL', 'OS_PROJECT_ID', 'OS_PROJECT_NAME',
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'OS_USER_DOMAIN_NAME', 'OS_USERNAME', 'OS_PASSWORD',
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'OS_REGION_NAME', 'OS_IDENTITY_API_VERSION'):
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os.environ[attr] = config.get('keystone', attr)
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# Execute the OpenStack CLI Command
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openstack_cli = subprocess.Popen(
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self.openstack_command,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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# Logs Output
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logging.info("Output:")
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line = ''
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for line in iter(openstack_cli.stdout.readline, b''):
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line = line.strip()
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logging.info(line)
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# Wait for child process to terminate
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# Set and return returncode attribute.
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openstack_cli.wait()
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logging.info("Command exited with "
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"return code {0}".format(openstack_cli.returncode))
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# Raise Execptions if OpenStack Command Fails
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if openstack_cli.returncode:
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raise AirflowException("OpenStack Command Failed")
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class OpenStackCliPlugin(AirflowPlugin):
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name = "openstack_cli_plugin"
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operators = [OpenStackOperator]
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