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Commit c6067eda by Michael DeHaan
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Remove YAML inventory example.

parent 3e9b63fe
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plugins/inventory/yaml.py deleted 100755 → 0
#!/usr/bin/env python
# Support a YAML file hosts.yml as external inventory in Ansible
# Copyright (C) 2012 Jeroen Hoekx <jeroen@hoekx.be>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
File format:
- <hostname>
or
- host: <hostname>
vars:
- myvar: value
- myvbr: vblue
groups:
- mygroup1
- mygroup2
or
- group: <groupname>
vars:
- groupvar: value
hosts:
- myhost1
- myhost2
groups:
- subgroup1
- subgroup2
Any statement except the first definition is optional.
"""
import json
import os
import sys
from optparse import OptionParser
import yaml
class Host():
def __init__(self, name):
self.name = name
self.groups = []
self.vars = {}
def __repr__(self):
return "Host('%s')"%(self.name)
def set_variable(self, key, value):
self.vars[key] = value
def get_variables(self):
result = {}
for group in self.groups:
for k,v in group.get_variables().items():
result[k] = v
for k, v in self.vars.items():
result[k] = v
return result
def add_group(self, group):
if group not in self.groups:
self.groups.append(group)
class Group():
def __init__(self, name):
self.name = name
self.hosts = []
self.vars = {}
self.subgroups = []
self.parents = []
def __repr__(self):
return "Group('%s')"%(self.name)
def get_hosts(self):
""" List all hosts in this group, including subgroups """
result = [ host for host in self.hosts ]
for group in self.subgroups:
for host in group.get_hosts():
if host not in result:
result.append(host)
return result
def add_host(self, host):
if host not in self.hosts:
self.hosts.append(host)
host.add_group(self)
def add_subgroup(self, group):
if group not in self.subgroups:
self.subgroups.append(group)
group.add_parent(self)
def add_parent(self, group):
if group not in self.parents:
self.parents.append(group)
def set_variable(self, key, value):
self.vars[key] = value
def get_variables(self):
result = {}
for group in self.parents:
result.update( group.get_variables() )
result.update(self.vars)
return result
def find_group(name, groups):
for group in groups:
if name == group.name:
return group
def parse_vars(vars, obj):
### vars can be a list of dicts or a dictionary
if type(vars) == dict:
for k,v in vars.items():
obj.set_variable(k, v)
elif type(vars) == list:
for var in vars:
k,v = var.items()[0]
obj.set_variable(k, v)
def parse_yaml(yaml_hosts):
groups = []
all_hosts = Group('all')
ungrouped = Group('ungrouped')
groups.append(ungrouped)
### groups first, so hosts can be added to 'ungrouped' if necessary
subgroups = []
for entry in yaml_hosts:
if 'group' in entry and type(entry)==dict:
group = find_group(entry['group'], groups)
if not group:
group = Group(entry['group'])
groups.append(group)
if 'vars' in entry:
parse_vars(entry['vars'], group)
if 'hosts' in entry:
for host_name in entry['hosts']:
host = None
for test_host in all_hosts.get_hosts():
if test_host.name == host_name:
host = test_host
break
else:
host = Host(host_name)
all_hosts.add_host(host)
group.add_host(host)
if 'groups' in entry:
for subgroup in entry['groups']:
subgroups.append((group.name, subgroup))
for name, sub_name in subgroups:
group = find_group(name, groups)
subgroup = find_group(sub_name, groups)
group.add_subgroup(subgroup)
for entry in yaml_hosts:
### a host is either a dict or a single line definition
if type(entry) in [str, unicode]:
for test_host in all_hosts.get_hosts():
if test_host.name == entry:
break
else:
host = Host(entry)
all_hosts.add_host(host)
ungrouped.add_host(host)
elif 'host' in entry:
host = None
no_group = False
for test_host in all_hosts.get_hosts():
### all hosts contains only hosts already in groups
if test_host.name == entry['host']:
host = test_host
break
else:
host = Host(entry['host'])
all_hosts.add_host(host)
no_group = True
if 'vars' in entry:
parse_vars(entry['vars'], host)
if 'groups' in entry:
for test_group in groups:
if test_group.name in entry['groups']:
test_group.add_host(host)
all_hosts.add_host(host)
no_group = False
if no_group:
ungrouped.add_host(host)
return groups, all_hosts
parser = OptionParser()
parser.add_option('-l', '--list', default=False, dest="list_hosts", action="store_true")
parser.add_option('-H', '--host', default=None, dest="host")
parser.add_option('-e', '--extra-vars', default=None, dest="extra")
options, args = parser.parse_args()
base_dir = os.path.dirname(os.path.realpath(__file__))
hosts_file = os.path.join(base_dir, 'hosts.yml')
with open(hosts_file) as f:
yaml_hosts = yaml.safe_load( f.read() )
groups, all_hosts = parse_yaml(yaml_hosts)
if options.list_hosts == True:
result = {}
for group in groups:
result[group.name] = [host.name for host in group.get_hosts()]
print json.dumps(result)
sys.exit(0)
if options.host is not None:
result = {}
host = None
for test_host in all_hosts.get_hosts():
if test_host.name == options.host:
host = test_host
break
result = host.get_variables()
if options.extra:
k,v = options.extra.split("=")
result[k] = v
print json.dumps(result)
sys.exit(0)
parser.print_help()
sys.exit(1)
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