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#!/usr/bin/env python |
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import json |
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import requests |
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from requests.auth import HTTPBasicAuth |
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import ast |
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# from [email protected]:mward29/python-k8sclient.git |
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from st2reactor.sensor.base import Sensor |
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class ThirdPartyResource(Sensor): |
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def __init__(self, sensor_service, config=None): |
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super(ThirdPartyResource, self).__init__(sensor_service=sensor_service, |
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config=config) |
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# self._labels = self._config['labels'].get('thirdpartyresource', [])\ |
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def setup(self): |
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self._logger = self._sensor_service.get_logger(name=self.__class__.__name__) |
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self._logger.debug('Connecting to Kubernetes via api_client') |
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extension = self._config['extension_url'] |
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KUBERNETES_API_URL = self._config['kubernetes_api_url'] + extension |
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user = self._config['user'] |
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password = self._config['password'] |
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self.client = requests.get(KUBERNETES_API_URL, auth=HTTPBasicAuth(user, password), |
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verify=False, stream=True) |
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pass |
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def run(self): |
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self._logger = self._sensor_service.get_logger(name=self.__class__.__name__) |
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self._logger.debug('Watch Kubernetes for thirdpartyresource information') |
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r = self.client |
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lines = r.iter_lines() |
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# Save the first line for later or just skip it |
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# first_line = next(lines) |
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for line in lines: |
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io = json.dumps(line) |
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n = json.loads(io) |
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d_list = ast.literal_eval(n) |
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self._k8s_object(d_list=d_list) |
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# self._resource_version(d_list=d_list) |
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pass |
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def _k8s_object(self, d_list): |
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# Define some variables |
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resource_type = d_list['type'] |
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object_kind = d_list['object']['kind'] |
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name = d_list['object']['metadata']['name'] |
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namespace = d_list['object']['metadata']['namespace'] |
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uid = d_list['object']['metadata']['uid'] |
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# Now lets see if labels exist, if so build a trigger |
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if 'labels' in d_list['object']['metadata']: |
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labels_data = d_list['object']['metadata']['labels'] |
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self._build_a_trigger(resource_type=resource_type, name=name, labels=labels_data, |
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namespace=namespace, object_kind=object_kind, uid=uid) |
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else: |
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print("No Labels for the resource below. Tough to proceed without knowing how \ |
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to work with this object.") |
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print(name, namespace, uid) |
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pass |
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def _build_a_trigger(self, resource_type, name, labels, namespace, object_kind, uid): |
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trigger = 'kubernetes.thirdpartyobject' |
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payload = { |
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'resource': resource_type, |
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'name': name, |
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'labels': labels, |
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'namespace': namespace, |
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'object_kind': object_kind, |
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'uid': uid |
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} |
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self._logger = self._sensor_service.get_logger(name=self.__class__.__name__) |
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self._logger.debug('Triggering Dispatch Now') |
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# Create dispatch trigger |
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self._sensor_service.dispatch(trigger=trigger, payload=payload) |
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pass |
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def cleanup(self): |
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pass |
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def add_trigger(self, trigger): |
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pass |
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def update_trigger(self, trigger): |
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pass |
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def remove_trigger(self, trigger): |
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pass |
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def _process_message(self, message): |
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pass |
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It is generally a good practice to initialize all attributes to default values in the
__init__
method: