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103 lines
3.2 KiB
Python
103 lines
3.2 KiB
Python
# (c) 2016, Josh Bradley <jbradley(at)digitalocean.com>
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# (c) 2017 Ansible Project
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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DOCUMENTATION = """
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lookup: chef_databag
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version_added: "2.3"
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short_description: fetches data from a Chef Databag
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description:
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- "This is a lookup plugin to provide access to chef data bags using the pychef package.
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It interfaces with the chef server api using the same methods to find a knife or chef-client config file to load parameters from,
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starting from either the given base path or the current working directory.
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The lookup order mirrors the one from Chef, all folders in 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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requirements:
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- "pychef (python library https://pychef.readthedocs.io `pip install pychef`"
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options:
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name:
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description:
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- Name of the databag
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required: True
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item:
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description:
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- Item to fetch
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required: True
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"""
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EXAMPLES = """
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- debug:
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msg: "{{ lookup('chef_databag', 'name=data_bag_name item=data_bag_item') }}"
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"""
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RETURN = """
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_raw:
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description:
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- The value from the databag
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"""
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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 {0}={1} 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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