99 lines
3.2 KiB
Python
99 lines
3.2 KiB
Python
# (c) 2016, Josh Bradley <jbradley(at)digitalocean.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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#
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"""
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USAGE: {{ lookup('chef_databag', 'name=data_bag_name item=data_bag_item') }}
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NOTES: This is a lookup plugin to provide access to chef data bags using the
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pychef package. It interfaces with the chef server api using the same
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methods to find a knife or chef-client config file to load parameters
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from, starting from either the given base path or the current working
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directory. The lookup order mirrors the one from Chef, all folders in
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the base path are walked back looking for the following configuration
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file in order : .chef/knife.rb, ~/.chef/knife.rb, /etc/chef/client.rb
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Requires: pychef package: https://pychef.readthedocs.io `pip install pychef`
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"""
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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from ansible.errors import AnsibleError
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from ansible.plugins.lookup import LookupBase
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from ansible.parsing.splitter import parse_kv
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try:
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import chef
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HAS_CHEF = True
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except ImportError as missing_module:
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HAS_CHEF = False
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class LookupModule(LookupBase):
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"""
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Chef data bag lookup module
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"""
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def __init__(self, loader=None, templar=None, **kwargs):
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super(LookupModule, self).__init__(loader, templar, **kwargs)
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# setup vars for data bag name and data bag item
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self.name = None
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self.item = None
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def parse_kv_args(self, args):
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"""
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parse key-value style arguments
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"""
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for arg in ["name", "item"]:
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try:
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arg_raw = args.pop(arg, None)
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if arg_raw is None:
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continue
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parsed = str(arg_raw)
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setattr(self, arg, parsed)
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except ValueError:
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raise AnsibleError(
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"can't parse arg {}={} as string".format(arg, arg_raw)
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)
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if args:
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raise AnsibleError(
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"unrecognized arguments to with_sequence: %r" % args.keys()
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)
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def run(self, terms, variables=None, **kwargs):
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# Ensure pychef has been loaded
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if not HAS_CHEF:
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raise AnsibleError('PyChef needed for lookup plugin, try `pip install pychef`')
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for term in terms:
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self.parse_kv_args(parse_kv(term))
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api_object = chef.autoconfigure()
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if not isinstance(api_object, chef.api.ChefAPI):
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raise AnsibleError('Unable to connect to Chef Server API.')
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data_bag_object = chef.DataBag(self.name)
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data_bag_item = data_bag_object[self.item]
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return [dict(data_bag_item)]
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