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74 lines
2.2 KiB
Python
74 lines
2.2 KiB
Python
# (c) 2012, Michael DeHaan <michael.dehaan@gmail.com>
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# (c) 2013, Steven Dossett <sdossett@panath.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: inventory_hostnames
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author:
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- Michael DeHaan <michael.dehaan@gmail.com>
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- Steven Dossett <sdossett@panath.com>
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version_added: "1.3"
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short_description: list of inventory hosts matching a host pattern
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description:
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- "This lookup understands 'host patterns' as used by the `hosts:` keyword in plays
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and can return a list of matching hosts from inventory"
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notes:
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- this is only worth for 'hostname patterns' it is easier to loop over the group/group_names variables otherwise.
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"""
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EXAMPLES = """
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- name: show all the hosts matching the pattern, i.e. all but the group www
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debug:
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msg: "{{ item }}"
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with_inventory_hostnames:
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- all:!www
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"""
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RETURN = """
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_hostnames:
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description: list of hostnames that matched the host pattern in inventory
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type: list
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"""
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from ansible.inventory.manager import split_host_pattern, order_patterns
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from ansible.plugins.lookup import LookupBase
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class LookupModule(LookupBase):
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def get_hosts(self, variables, pattern):
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hosts = []
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if pattern[0] in ('!', '&'):
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obj = pattern[1:]
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else:
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obj = pattern
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if obj in variables['groups']:
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hosts = variables['groups'][obj]
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elif obj in variables['groups']['all']:
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hosts = [obj]
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return hosts
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def run(self, terms, variables=None, **kwargs):
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host_list = []
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for term in terms:
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patterns = order_patterns(split_host_pattern(term))
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for p in patterns:
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that = self.get_hosts(variables, p)
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if p.startswith("!"):
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host_list = [h for h in host_list if h not in that]
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elif p.startswith("&"):
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host_list = [h for h in host_list if h in that]
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else:
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host_list.extend(that)
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# return unique list
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return list(set(host_list))
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