89 lines
2.8 KiB
Python
89 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 sys
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import os
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import shlex
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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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:openrc_file: Path of the openrc file
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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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openrc_file,
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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.openrc_file = openrc_file
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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: " + self.openstack_command)
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# Emulate "source" in bash. Sets up environment variables.
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pipe = subprocess.Popen(". %s; env" % self.openrc_file, stdout=subprocess.PIPE, shell=True)
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data = pipe.communicate()[0]
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env = dict((line.split("=", 1) for line in data.splitlines()))
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os.environ.update(env)
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# Execute the OpenStack CLI Command
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openstack_cli = subprocess.Popen(shlex.split(self.openstack_command), stdout=subprocess.PIPE, 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. 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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"""
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Push response to an XCom if xcom_push is True
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"""
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if self.xcom_push_flag:
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return line
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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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