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Further work on making the YAML inventory parser use the new inventory objects.

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This commit is contained in:
Michael DeHaan 2012-05-06 17:03:17 -04:00
parent a8f0b5fd06
commit 1a00e2635e
3 changed files with 132 additions and 27 deletions
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13
lib/ansible/inventory.py
View file

@ -23,6 +23,7 @@ import os
import constants as C
import subprocess
from ansible.inventory_parser import InventoryParser
from ansible.inventory_parser_yaml import InventoryParserYaml
from ansible.inventory_script import InventoryScript
from ansible.group import Group
from ansible.host import Host
@ -36,9 +37,6 @@ class Inventory(object):
def __init__(self, host_list=C.DEFAULT_HOST_LIST):
# FIXME: re-support YAML inventory format
# FIXME: re-support external inventory script (?)
self.host_list = host_list
self.groups = []
self._restriction = None
@ -52,8 +50,13 @@ class Inventory(object):
self.parser = InventoryScript(filename=host_list)
self.groups = self.parser.groups.values()
else:
self.parser = InventoryParser(filename=host_list)
self.groups = self.parser.groups.values()
data = file(host_list).read()
if not data.startswith("---"):
self.parser = InventoryParser(filename=host_list)
self.groups = self.parser.groups.values()
else:
self.parser = InventoryParserYaml(filename=host_list)
self.groups = self.parser.groups.values()
def _groups_from_override_hosts(self, list):
# support for playbook's --override-hosts only

103
lib/ansible/inventory_parser_yaml.py Normal file
View file

@ -0,0 +1,103 @@
# (c) 2012, Michael DeHaan <michael.dehaan@gmail.com>
#
# This file is part of Ansible
#
# Ansible 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.
#
# Ansible 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 Ansible. If not, see <http://www.gnu.org/licenses/>.
#############################################
import constants as C
from ansible.host import Host
from ansible.group import Group
from ansible import errors
from ansible import utils
class InventoryParserYaml(object):
"""
Host inventory for ansible.
"""
def __init__(self, filename=C.DEFAULT_HOST_LIST):
fh = open(filename)
data = fh.read()
fh.close()
self._hosts = {}
self._parse(data)
def _make_host(self, hostname):
if hostname in self._hosts:
return self._hosts[hostname]
else:
host = Host(hostname)
self._hosts[hostname] = host
return host
# see file 'test/yaml_hosts' for syntax
def _parse(self, data):
all = Group('all')
ungrouped = Group('ungrouped')
all.add_child_group(ungrouped)
self.groups = dict(all=all, ungrouped=ungrouped)
yaml = utils.parse_yaml(data)
for item in yaml:
if type(item) in [ str, unicode ]:
host = self._make_host(item)
ungrouped.add_host(host)
elif type(item) == dict and 'host' in item:
host = self._make_host(item['host'])
for (k,v) in item.get('vars',{}).items():
host.set_variable(k,v)
elif type(item) == dict and 'group' in item:
group = Group(item['group'])
for subresult in item.get('hosts',[]):
if type(subresult) in [ str, unicode ]:
host = self._make_host(subresult)
group.add_host(host)
elif type(subresult) == dict:
host = self._make_host(subresult['host'])
vars = subresult.get('vars',{})
if type(vars) == list:
for subitem in vars:
for (k,v) in subitem.items():
host.set_variable(k,v)
elif type(vars) == dict:
for (k,v) in subresult.get('vars',{}).items():
host.set_variable(k,v)
else:
raise errors.AnsibleError("unexpected type for variable")
group.add_host(host)
vars = item.get('vars',{})
if type(vars) == dict:
for (k,v) in item.get('vars',{}).items():
group.set_variable(k,v)
elif type(vars) == list:
for subitem in vars:
if type(subitem) != dict:
raise errors.AnsibleError("expected a dictionary")
for (k,v) in subitem.items():
group.set_variable(k,v)
self.groups[group.name] = group
all.add_child_group(group)

41
test/TestInventory.py
View file

@ -3,7 +3,7 @@ import unittest
from ansible.inventory import Inventory
from ansible.runner import Runner
from nose.plugins.skip import SkipTest
# from nose.plugins.skip import SkipTest
class TestInventory(unittest.TestCase):
@ -20,6 +20,14 @@ class TestInventory(unittest.TestCase):
def tearDown(self):
os.chmod(self.inventory_script, 0644)
def compare(self, left, right):
left = sorted(left)
right = sorted(right)
print left
print right
assert left == right
### Simple inventory format tests
def simple_inventory(self):
@ -167,47 +175,41 @@ class TestInventory(unittest.TestCase):
### Tests for yaml inventory file
def test_yaml(self):
raise SkipTest
inventory = self.yaml_inventory()
hosts = inventory.list_hosts()
print hosts
expected_hosts=['jupiter', 'saturn', 'zeus', 'hera', 'poseidon', 'thor', 'odin', 'loki']
assert hosts == expected_hosts
self.compare(hosts, expected_hosts)
def test_yaml_all(self):
raise SkipTest
inventory = self.yaml_inventory()
hosts = inventory.list_hosts('all')
expected_hosts=['jupiter', 'saturn', 'zeus', 'hera', 'poseidon', 'thor', 'odin', 'loki']
assert hosts == expected_hosts
self.compare(hosts, expected_hosts)
def test_yaml_norse(self):
raise SkipTest
inventory = self.yaml_inventory()
hosts = inventory.list_hosts("norse")
expected_hosts=['thor', 'odin', 'loki']
assert hosts == expected_hosts
self.compare(hosts, expected_hosts)
def test_simple_ungrouped(self):
raise SkipTest
inventory = self.yaml_inventory()
hosts = inventory.list_hosts("ungrouped")
expected_hosts=['jupiter']
assert hosts == expected_hosts
expected_hosts=['jupiter','zeus']
self.compare(hosts, expected_hosts)
def test_yaml_combined(self):
raise SkipTest
inventory = self.yaml_inventory()
hosts = inventory.list_hosts("norse:greek")
expected_hosts=['zeus', 'hera', 'poseidon', 'thor', 'odin', 'loki']
assert hosts == expected_hosts
self.compare(hosts, expected_hosts)
def test_yaml_restrict(self):
raise SkipTest
inventory = self.yaml_inventory()
restricted_hosts = ['hera', 'poseidon', 'thor']
@ -216,56 +218,53 @@ class TestInventory(unittest.TestCase):
inventory.restrict_to(restricted_hosts)
hosts = inventory.list_hosts("norse:greek")
assert hosts == restricted_hosts
self.compare(hosts, restricted_hosts)
inventory.lift_restriction()
hosts = inventory.list_hosts("norse:greek")
assert hosts == expected_hosts
self.compare(hosts, expected_hosts)
def test_yaml_vars(self):
raise SkipTest
inventory = self.yaml_inventory()
vars = inventory.get_variables('thor')
print vars
assert vars == {'group_names': ['norse'],
'hammer':True,
'inventory_hostname': 'thor'}
def test_yaml_change_vars(self):
raise SkipTest
inventory = self.yaml_inventory()
vars = inventory.get_variables('thor')
vars["hammer"] = False
vars = inventory.get_variables('thor')
print vars
assert vars == {'hammer':True,
'inventory_hostname': 'thor',
'group_names': ['norse']}
def test_yaml_host_vars(self):
raise SkipTest
inventory = self.yaml_inventory()
vars = inventory.get_variables('saturn')
print vars
assert vars == {'inventory_hostname': 'saturn',
'moon': 'titan',
'moon2': 'enceladus',
'group_names': ['multiple']}
def test_yaml_port(self):
raise SkipTest
inventory = self.yaml_inventory()
vars = inventory.get_variables('hera')
print vars
assert vars == {'ansible_ssh_port': 3000,
'inventory_hostname': 'hera',
'ntp_server': 'olympus.example.com',
'group_names': ['greek']}
def test_yaml_multiple_groups(self):
raise SkipTest
inventory = self.yaml_inventory()
vars = inventory.get_variables('odin')