117 lines
4.2 KiB
Python
117 lines
4.2 KiB
Python
# (c) 2012, Michael DeHaan <michael.dehaan@gmail.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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import ansible.constants as C
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from ansible.inventory.host import Host
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from ansible.inventory.group import Group
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from ansible import errors
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from ansible import utils
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class InventoryParserYaml(object):
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"""
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Host inventory for ansible.
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"""
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def __init__(self, filename=C.DEFAULT_HOST_LIST):
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fh = open(filename)
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data = fh.read()
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fh.close()
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self._hosts = {}
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self._parse(data)
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def _make_host(self, hostname):
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if hostname in self._hosts:
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return self._hosts[hostname]
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else:
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host = Host(hostname)
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self._hosts[hostname] = host
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return host
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# see file 'test/yaml_hosts' for syntax
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def _parse(self, data):
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all = Group('all')
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ungrouped = Group('ungrouped')
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all.add_child_group(ungrouped)
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self.groups = dict(all=all, ungrouped=ungrouped)
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grouped_hosts = []
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yaml = utils.parse_yaml(data)
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# first add all groups
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for item in yaml:
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if type(item) == dict and 'group' in item:
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group = Group(item['group'])
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for subresult in item.get('hosts',[]):
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if type(subresult) in [ str, unicode ]:
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host = self._make_host(subresult)
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group.add_host(host)
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grouped_hosts.append(host)
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elif type(subresult) == dict:
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host = self._make_host(subresult['host'])
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vars = subresult.get('vars',{})
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if type(vars) == list:
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for subitem in vars:
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for (k,v) in subitem.items():
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host.set_variable(k,v)
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elif type(vars) == dict:
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for (k,v) in subresult.get('vars',{}).items():
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host.set_variable(k,v)
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else:
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raise errors.AnsibleError("unexpected type for variable")
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group.add_host(host)
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grouped_hosts.append(host)
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vars = item.get('vars',{})
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if type(vars) == dict:
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for (k,v) in item.get('vars',{}).items():
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group.set_variable(k,v)
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elif type(vars) == list:
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for subitem in vars:
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if type(subitem) != dict:
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raise errors.AnsibleError("expected a dictionary")
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for (k,v) in subitem.items():
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group.set_variable(k,v)
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self.groups[group.name] = group
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all.add_child_group(group)
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# add host definitions
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for item in yaml:
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if type(item) in [ str, unicode ]:
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host = self._make_host(item)
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if host not in grouped_hosts:
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ungrouped.add_host(host)
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elif type(item) == dict and 'host' in item:
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host = self._make_host(item['host'])
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vars = item.get('vars', {})
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if type(vars)==list:
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varlist, vars = vars, {}
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for subitem in varlist:
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vars.update(subitem)
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for (k,v) in vars.items():
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host.set_variable(k,v)
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if host not in grouped_hosts:
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ungrouped.add_host(host)
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