mirror of
https://github.com/ansible-collections/community.general.git
synced 2024-09-14 20:13:21 +02:00
Jeroen Hoekx
parent
de912381ac
commit
2290dfe1ef
1 changed files with 255 additions and 0 deletions
255
plugins/inventory/yaml.py
Executable file
255
plugins/inventory/yaml.py
Executable file
|
|
@ -0,0 +1,255 @@
|
|||
#!/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.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)
|
||||
Loading…
Reference in a new issue