Source code for freezer_dr.common.yaml_parser

# (c) Copyright 2014,2015 Hewlett-Packard Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
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#     http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
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import os
import yaml


[docs]class YamlParser(object): _INDEX = 'servers' def __init__(self, yml_file, index='servers'): """ Provide Yaml file to parse it and process data :param yml_file: path to yaml file :param index: the key in the .yml file to get all servers listed under this key. the default 'is servers' """ self.file = yml_file self._INDEX = index self.data = self.parse()
[docs] def parse(self): if not self.file: raise Exception('No file specified !') if not os.path.exists(self.file) or not os.path.isfile(self.file): raise Exception('File desnot exists') stream = open(self.file, 'r') data = yaml.load(stream) return data
[docs] def find_server_by_ip(self, ip): """ get server information ilo username, password and ip :param ip: mgmt ip address of the server, this should be the same like the ip in the .yml file :return: dict contains server information """ return self.find_server('ip-addr', ip)
[docs] def find_server_by_hostname(self, hostname): """ get server information ilo username, password and ip :param hostname: hostname matches one of the ones in the .yml file :return: dict contains the server information """ return self.find_server(key='hostname', value=hostname)
[docs] def find_server(self, key, value): """ Generic function to query the .yml file to get server information by any key. :param key: :param value: :return: """ for server in self.data.get(self._INDEX): if server.get(key) == value: return server return None