Current File : //proc/thread-self/root/lib/python2.7/site-packages/salt/pillar/etcd_pillar.py
# -*- coding: utf-8 -*-
'''
Use etcd data as a Pillar source
.. versionadded:: 2014.7.0
:depends: - python-etcd
In order to use an etcd server, a profile must be created in the master
configuration file:
.. code-block:: yaml
my_etcd_config:
etcd.host: 127.0.0.1
etcd.port: 4001
After the profile is created, configure the external pillar system to use it.
Optionally, a root may be specified.
.. code-block:: yaml
ext_pillar:
- etcd: my_etcd_config
ext_pillar:
- etcd: my_etcd_config root=/salt
Using these configuration profiles, multiple etcd sources may also be used:
.. code-block:: yaml
ext_pillar:
- etcd: my_etcd_config
- etcd: my_other_etcd_config
The ``minion_id`` may be used in the ``root`` path to expose minion-specific
information stored in etcd.
.. code-block:: yaml
ext_pillar:
- etcd: my_etcd_config root=/salt/%(minion_id)s
Minion-specific values may override shared values when the minion-specific root
appears after the shared root:
.. code-block:: yaml
ext_pillar:
- etcd: my_etcd_config root=/salt-shared
- etcd: my_other_etcd_config root=/salt-private/%(minion_id)s
Using the configuration above, the following commands could be used to share a
key with all minions but override its value for a specific minion::
etcdctl set /salt-shared/mykey my_value
etcdctl set /salt-private/special_minion_id/mykey my_other_value
'''
from __future__ import absolute_import, print_function, unicode_literals
# Import python libs
import logging
# Import third party libs
try:
import salt.utils.etcd_util
HAS_LIBS = True
except ImportError:
HAS_LIBS = False
__virtualname__ = 'etcd'
# Set up logging
log = logging.getLogger(__name__)
def __virtual__():
'''
Only return if python-etcd is installed
'''
return __virtualname__ if HAS_LIBS else False
def ext_pillar(minion_id,
pillar, # pylint: disable=W0613
conf):
'''
Check etcd for all data
'''
comps = conf.split()
profile = None
if comps[0]:
profile = comps[0]
client = salt.utils.etcd_util.get_conn(__opts__, profile)
path = '/'
if len(comps) > 1 and comps[1].startswith('root='):
path = comps[1].replace('root=', '')
# put the minion's ID in the path if necessary
path %= {
'minion_id': minion_id
}
try:
pillar = salt.utils.etcd_util.tree(client, path)
except KeyError:
log.error('No such key in etcd profile %s: %s', profile, path)
pillar = {}
return pillar
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