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72 lines
2.4 KiB
Python
72 lines
2.4 KiB
Python
# (c) 2012, Jan-Piet Mens <jpmens(at)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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from ansible import utils, errors
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import os
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HAVE_REDIS=False
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try:
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import redis # https://github.com/andymccurdy/redis-py/
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HAVE_REDIS=True
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except ImportError:
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pass
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import re
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# ==============================================================
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# REDISGET: Obtain value from a GET on a Redis key. Terms
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# expected: 0 = URL, 1 = Key
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# URL may be empty, in which case redis://localhost:6379 assumed
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# --------------------------------------------------------------
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class LookupModule(object):
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def __init__(self, basedir=None, **kwargs):
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self.basedir = basedir
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if HAVE_REDIS == False:
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raise errors.AnsibleError("Can't LOOKUP(redis_kv): module redis is not installed")
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def run(self, terms, inject=None, **kwargs):
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terms = utils.listify_lookup_plugin_terms(terms, self.basedir, inject)
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ret = []
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for term in terms:
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(url,key) = term.split(',')
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if url == "":
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url = 'redis://localhost:6379'
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# urlsplit on Python 2.6.1 is broken. Hmm. Probably also the reason
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# Redis' from_url() doesn't work here.
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p = '(?P<scheme>[^:]+)://?(?P<host>[^:/ ]+).?(?P<port>[0-9]*).*'
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try:
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m = re.search(p, url)
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host = m.group('host')
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port = int(m.group('port'))
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except AttributeError:
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raise errors.AnsibleError("Bad URI in redis lookup")
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try:
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conn = redis.Redis(host=host, port=port)
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res = conn.get(key)
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if res is None:
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res = ""
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ret.append(res)
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except:
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ret.append("") # connection failed or key not found
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return ret
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