36 lines
1.1 KiB
Python
36 lines
1.1 KiB
Python
import json
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import etcd3 as etcd3
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from retrying import retry
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CLUSTER_INFO_KEY = '/syncthing_monitor/cluster_info'
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DEFAULT_PORT = 2379
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class EtcdClient:
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def __init__(self, host, port=DEFAULT_PORT):
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self.etcd = etcd3.client(host=host, port=port)
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def load_cluster_info(self):
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raw_value, meta = self.etcd.get(CLUSTER_INFO_KEY)
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if raw_value is None:
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return {'devices': []}
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return json.loads(raw_value)
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@retry
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def append_device_id(self, device_id):
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with self.etcd.lock('syncthing_monitor'):
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cluster_info = self.load_cluster_info()
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if not any(device_id in element for element in cluster_info['devices']):
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cluster_info['devices'].append(device_id)
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print("Updating etcd value for '{0}': {1}".format(CLUSTER_INFO_KEY, json.dumps(cluster_info)))
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self.etcd.put(CLUSTER_INFO_KEY, json.dumps(cluster_info))
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@retry
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def get_device_list(self):
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device_list = self.load_cluster_info()['devices']
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print("Obtained device_list devices from etcd: {0}".format(json.dumps(device_list)))
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return device_list
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