Saltstack source code Analysis of Redis returner

Redis

/usr/lib/python2.6/site-packages/salt/returners/redis_return.py

Requires Python driver for minion-side installation of Redis

#-*-Coding:utf-8-*-' Return data to a Redis Serverto enable this returner the Minion would need the Python client for     Redisinstalled and the following values configured in the Minion or Masterconfig, these is the defaults:redis.db: ' 0 ' Redis.host: ' Salt ' redis.port:6379 to use the Redis returner, append '--return redis ' to the salt command. Ex:salt ' * ' test.ping--return redis '

# import Python libsimport json# import Salt libsimport salt.utils# import Third party libstry:import Redis has_red is = trueexcept Importerror:has_redis = false# Define The module ' s virtual name__virtualname__ = ' REDIS ' def __virtual_ _ (): If not Has_redis:return False return __virtualname__

Def _get_serv ():     "    return a redis server  object     '     if  ' config.option '  in __salt__:         return redis. Redis (                host=__ salt__[' config.option ' (' redis.host '),                 port=__salt__[' config.option ' (' Redis.port '),                 db=__salt__[' config.option ' (' redis.db '))      else:        cfg = __opts__         return redis. Redis (                host= Cfg.get (' Redis.hosT ',  none),                 port=cfg.get (' Redis.port ',  none),                 db=cfg.get (' redis.db ',  none))

Get Redis configuration information

def returner (ret): ' Return data to a Redis data store ' serv = _get_serv () serv.set (' {0}:{1} '. Format (r et[' id '], ret[' Jid ']), Json.dumps (ret)) Serv.lpush (' {0}:{1} '. Format (ret[' id '], ret[' fun '), ret[' Jid ']) serv.sadd (' m Inions ', ret[' id ']) serv.sadd (' Jids ', ret[' Jid ')

def save_load (Jid, load): "Save the load to the specified Jid" "serv = _get_serv () serv.set (Jid, JSON.) Dumps (load)) Serv.sadd (' Jids ', Jid)

Def get_load (Jid):     "    return the load data  that marks a specified jid     '     serv  = _get_serv ()     data = serv.get (Jid)     if  Data:        return json.loads (data)      Return {}def get_jid (Jid):     "    Return the  information returned when the specified job id was executed      "    serv = _get_serv ()     ret =  {}    for minion in serv.smembers (' Minions '):         data = serv.get (' {0}:{1} '. Format (Minion, jid))          if data:            ret[minion] =  Json.loads (data)     return retdef get_fun (fun):     "     Return a dict of the last function called for  all minions     "    serv = _get_serv ()      ret = {}    for minion in serv.smembers (' Minions '):         ind_str =  ' {0}:{1} '. Format (minion, fun)          try:             jid = serv.lindex (ind_str, 0)         except  Exception:            continue        &Nbsp;data = serv.get (' {0}:{1} '. Format (Minion, jid))          if data:            ret[minion] =  json.loads (data)     return retdef get_jids ():     "     Return a list of all job ids     "     serv = _get_serv ()     return list (Serv.smembers (' Jids ') def get_minions ():     "    Return a list  of minions     "    serv = _get_serv ()      return list (Serv.smembers (' Minions ')) Def prep_jid (Nocache, passed_jid=none):   # pylint: disable=unused-argument     '     Do  Any work necessary to prepare a jid, including sending a custom id      '     return passed_jid if passed_jid is not  None else salt.utils.gen_jid ()

This article is from the Linux SA John blog, so be sure to keep this source http://john88wang.blog.51cto.com/2165294/1660833

Saltstack source code Analysis of Redis returner