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111 lines
3.0 KiB
Python
111 lines
3.0 KiB
Python
# (c) 2012, Jan-Piet Mens <jpmens(at)gmail.com>
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# (c) 2017 Ansible Project
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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DOCUMENTATION = """
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lookup: redis
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author:
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- Jan-Piet Mens (@jpmens) <jpmens(at)gmail.com>
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- Ansible Core
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version_added: "2.5"
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short_description: fetch data from Redis
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description:
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- This lookup returns a list of results from a Redis DB corresponding to a list of items given to it
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requirements:
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- redis (python library https://github.com/andymccurdy/redis-py/)
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options:
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_terms:
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description: list of keys to query
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host:
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description: location of Redis host
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default: '127.0.0.1'
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env:
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- name: ANSIBLE_REDIS_HOST
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ini:
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- section: lookup_redis
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key: host
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port:
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description: port on which Redis is listening on
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default: 6379A
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type: int
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env:
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- name: ANSIBLE_REDIS_PORT
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ini:
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- section: lookup_redis
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key: port
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socket:
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description: path to socket on which to query Redis, this option overrides host and port options when set.
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type: path
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env:
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- name: ANSIBLE_REDIS_SOCKET
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ini:
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- section: lookup_redis
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key: socket
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"""
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EXAMPLES = """
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- name: query redis for somekey (default or configured settings used)
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debug: msg="{{ lookup('redis', 'somekey'}}"
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- name: query redis for list of keys and non-default host and port
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debug: msg="{{ lookup('redis', item, host='myredis.internal.com', port=2121) }}"
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loop: '{{list_of_redis_keys}}'
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- name: use list directly
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debug: msg="{{ lookup('redis', 'key1', 'key2', 'key3') }}"
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- name: use list directly with a socket
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debug: msg="{{ lookup('redis', 'key1', 'key2', socket='/var/tmp/redis.sock') }}"
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"""
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RETURN = """
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_raw:
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description: value(s) stored in Redis
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"""
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import os
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HAVE_REDIS = False
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try:
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import redis
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HAVE_REDIS = True
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except ImportError:
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pass
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from ansible.errors import AnsibleError
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from ansible.plugins.lookup import LookupBase
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class LookupModule(LookupBase):
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def run(self, terms, variables, **kwargs):
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if not HAVE_REDIS:
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raise AnsibleError("Can't LOOKUP(redis_kv): module redis is not installed")
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# get options
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self.set_options(direct=kwargs)
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# setup connection
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host = self.get_option('host')
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port = self.get_option('port')
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socket = self.get_option('socket')
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if socket is None:
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conn = redis.Redis(host=host, port=port)
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else:
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conn = redis.Redis(unix_socket_path=socket)
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ret = []
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for term in terms:
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try:
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res = conn.get(term)
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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 Exception:
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ret.append("") # connection failed or key not found
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return ret
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