policy.py

   1 #!/usr/bin/python
   2
   3 # This script is used to manipulate the operational state of nodes in
   4 # different node groups.  These are basically set operations on nodes via the
   5 # PLC api.
   6 #
   7 # Take the ng name as an argument....
   8 # optionally,
   9 #  * get a list of nodes in the given nodegroup.
  10 #  * set some or all in the set to rins.
  11 #  * restart them all.
  12 #  * do something else to them all.
  13 #
  14
  15 import os
  16 import time
  17 import traceback
  18 import sys
  19 from optparse import OptionParser
  20
  21 from monitor import config
  22 from monitor import parser as parsermodule
  23 from monitor.common import *
  24 from monitor.model import *
  25 from monitor.wrapper import plc
  26 from monitor.wrapper import plccache
  27 from monitor.database.info.model import *
  28 from monitor.database.info.interface import *
  29
  30 from nodequery import verify,query_to_dict,node_select
  31
  32 api = plc.getAuthAPI()
  33
  34 def logic():
  35
  36         plc.nodeBootState(host, 'reinstall')
  37         node_end_record(host)
  38
  39 def main(hostnames, sitenames):
  40         # commands:
  41         i = 1
  42         node_count = 1
  43         site_count = 1
  44         #print "hosts: %s" % hostnames
  45         for i,host in enumerate(hostnames):
  46                 try:
  47                         lb = plccache.plcdb_hn2lb[host]
  48                 except:
  49                         print "unknown host in plcdb_hn2lb %s" % host
  50                         email_exception(host)
  51                         continue
  52
  53                 nodeblack = BlacklistRecord.get_by(hostname=host)
  54
  55                 if nodeblack and not nodeblack.expired():
  56                         print "skipping %s due to blacklist.  will expire %s" % (host, nodeblack.willExpire() )
  57                         continue
  58
  59                 sitehist = SiteInterface.get_or_make(loginbase=lb)
  60
  61                 recent_actions = sitehist.getRecentActions(hostname=host)
  62
  63                 nodehist = HistoryNodeRecord.findby_or_create(hostname=host)
  64
  65                 print "%s %s %s" % (i, nodehist.hostname, nodehist.status)
  66                 if nodehist.status == 'good' and \
  67                         changed_lessthan(nodehist.last_changed, 1.0) and \
  68                         found_within(recent_actions, 'down_notice', 7.0) and \
  69                         not found_within(recent_actions, 'online_notice', 0.5):
  70                                 # NOTE: chronicly flapping nodes will not get 'online' notices
  71                                 #               since, they are never up long enough to be 'good'.
  72                             # NOTE: searching for down_notice proves that the node has
  73                                 #               gone through a 'down' state first, rather than just
  74                                 #               flapping through: good, offline, online, ...
  75                                 #
  76                                 # NOTE: there is a narrow window in which this command must be
  77                                 #               evaluated, otherwise the notice will not go out.
  78                                 #               this is not ideal.
  79                                 sitehist.sendMessage('online_notice', hostname=host, viart=False, saveact=True)
  80                                 print "send message for host %s online" % host
  81
  82
  83                 # if a node is offline and doesn't have a PCU, remind the user that they should have one.
  84                 #if not nodehist.haspcu and nodehist.status in ['offline', 'down'] and \
  85                 #       changed_greaterthan(nodehist.last_changed,1.0) and \
  86                 #       not found_within(recent_actions, 'pcumissing_notice', 7.0):
  87                 #
  88                 #               sitehist.sendMessage('pcumissing_notice', hostname=host)
  89                 #               print "send message for host %s pcumissing_notice" % host
  90
  91                 # if it is offline and HAS a PCU, then try to use it.
  92                 if nodehist.haspcu and nodehist.status in ['offline', 'down'] and \
  93                         changed_greaterthan(nodehist.last_changed,1.0) and \
  94                         not found_between(recent_actions, 'try_reboot', 3.5, 1):
  95
  96                                 sitehist.attemptReboot(host)
  97                                 print "send message for host %s try_reboot" % host
  98
  99                 # NOTE: non-intuitive is that found_between(try_reboot, 3.5, 1)
 100                 #               will be false for a day after the above condition is satisfied
 101                 if nodehist.haspcu and nodehist.status in ['offline', 'down'] and \
 102                         changed_greaterthan(nodehist.last_changed,1.5) and \
 103                         found_between(recent_actions, 'try_reboot', 3.5, 1) and \
 104                         not found_within(recent_actions, 'pcufailed_notice', 3.5):
 105
 106                                 # send pcu failure message
 107                                 #act = ActionRecord(**kwargs)
 108                                 sitehist.sendMessage('pcufailed_notice', hostname=host)
 109                                 print "send message for host %s PCU Failure" % host
 110
 111                 if nodehist.status == 'monitordebug' and \
 112                         changed_greaterthan(nodehist.last_changed, 1) and \
 113                         not found_between(recent_actions, 'bootmanager_restore', 0.5, 0):
 114                                 # send down node notice
 115                                 # delay 0.5 days before retrying...
 116
 117                                 print "send message for host %s bootmanager_restore" % host
 118                                 sitehist.runBootManager(host)
 119                         #       sitehist.sendMessage('retry_bootman', hostname=host)
 120
 121                 if nodehist.status == 'down' and \
 122                         changed_greaterthan(nodehist.last_changed, 2) and \
 123                         not found_within(recent_actions, 'down_notice', 3.5):
 124                                 # send down node notice
 125
 126                                 sitehist.sendMessage('down_notice', hostname=host)
 127                                 print "send message for host %s down" % host
 128
 129                 node_count = node_count + 1
 130                 print "time: ", time.strftime('%Y-%m-%d %H:%M:%S')
 131                 sys.stdout.flush()
 132                 session.flush()
 133
 134         for i,site in enumerate(sitenames):
 135                 sitehist = SiteInterface.get_or_make(loginbase=site)
 136                 siteblack = BlacklistRecord.get_by(loginbase=site)
 137                 skip_due_to_blacklist=False
 138
 139                 if siteblack and not siteblack.expired():
 140                         print "skipping %s due to blacklist.  will expire %s" % (site, siteblack.willExpire() )
 141                         skip_due_to_blacklist=True
 142                         continue
 143
 144                 # TODO: make query only return records within a certin time range,
 145                 #               i.e. greater than 0.5 days ago. or 5 days, etc.
 146                 recent_actions = sitehist.getRecentActions(loginbase=site)
 147
 148                 print "%s %s %s" % (i, sitehist.db.loginbase, sitehist.db.status)
 149
 150                 # determine if there are penalties within the last 30 days?
 151                 # if so, add a 'pause_penalty' action.
 152                 if sitehist.db.message_id != 0 and sitehist.db.message_status == 'open' and \
 153                         sitehist.db.penalty_level > 0 and not found_within(recent_actions, 'pause_penalty', 30):
 154                         #       pause escalation
 155                         print "Pausing penalties for %s" % site
 156                         sitehist.pausePenalty()
 157                 else:
 158
 159                         if sitehist.db.status == 'down':
 160                                 if  not found_within(recent_actions, 'pause_penalty', 30) and \
 161                                         not found_within(recent_actions, 'increase_penalty', 7) and \
 162                                         changed_greaterthan(sitehist.db.last_changed, 7):
 163
 164                                         # TODO: catch errors
 165                                         sitehist.increasePenalty()
 166                                         sitehist.applyPenalty()
 167                                         sitehist.sendMessage('increase_penalty')
 168
 169                                         print "send message for site %s penalty increase" % site
 170
 171                         if sitehist.db.status == 'good':
 172                                 # clear penalty
 173                                 # NOTE: because 'all clear' should have an indefinite status, we
 174                                 #               have a boolean value rather than a 'recent action'
 175                                 if sitehist.db.penalty_applied:
 176                                         # send message that penalties are cleared.
 177
 178                                         sitehist.clearPenalty()
 179                                         sitehist.applyPenalty()
 180                                         sitehist.sendMessage('clear_penalty')
 181                                         sitehist.closeTicket()
 182
 183                                         print "send message for site %s penalty cleared" % site
 184
 185
 186                 site_count = site_count + 1
 187
 188                 print "time: ", time.strftime('%Y-%m-%d %H:%M:%S')
 189                 sys.stdout.flush()
 190                 session.flush()
 191
 192         session.flush()
 193         return
 194
 195
 196 if __name__ == "__main__":
 197         parser = parsermodule.getParser(['nodesets'])
 198         parser.set_defaults( timewait=0,
 199                                                 skip=0,
 200                                                 rins=False,
 201                                                 reboot=False,
 202                                                 findbad=False,
 203                                                 force=False,
 204                                                 nosetup=False,
 205                                                 verbose=False,
 206                                                 quiet=False,)
 207
 208         parser.add_option("", "--stopselect", dest="stopselect", metavar="",
 209                                                 help="The select string that must evaluate to true for the node to be considered 'done'")
 210         parser.add_option("", "--findbad", dest="findbad", action="store_true",
 211                                                 help="Re-run findbad on the nodes we're going to check before acting.")
 212         parser.add_option("", "--force", dest="force", action="store_true",
 213                                                 help="Force action regardless of previous actions/logs.")
 214         parser.add_option("", "--rins", dest="rins", action="store_true",
 215                                                 help="Set the boot_state to 'rins' for all nodes.")
 216         parser.add_option("", "--reboot", dest="reboot", action="store_true",
 217                                                 help="Actively try to reboot the nodes, keeping a log of actions.")
 218
 219         parser.add_option("", "--verbose", dest="verbose", action="store_true",
 220                                                 help="Extra debug output messages.")
 221         parser.add_option("", "--nosetup", dest="nosetup", action="store_true",
 222                                                 help="Do not perform the orginary setup phase.")
 223         parser.add_option("", "--skip", dest="skip",
 224                                                 help="Number of machines to skip on the input queue.")
 225         parser.add_option("", "--timewait", dest="timewait",
 226                                                 help="Minutes to wait between iterations of 10 nodes.")
 227
 228         parser = parsermodule.getParser(['defaults'], parser)
 229         config = parsermodule.parse_args(parser)
 230
 231         fbquery = HistoryNodeRecord.query.all()
 232         hostnames = [ n.hostname for n in fbquery ]
 233
 234         fbquery = HistorySiteRecord.query.all()
 235         sitenames = [ s.loginbase for s in fbquery ]
 236
 237         if config.site:
 238                 # TODO: replace with calls to local db.  the api fails so often that
 239                 #               these calls should be regarded as unreliable.
 240                 l_nodes = plccache.GetNodesBySite(config.site)
 241                 filter_hostnames = [ n['hostname'] for n in l_nodes ]
 242
 243                 hostnames = filter(lambda x: x in filter_hostnames, hostnames)
 244                 sitenames = [config.site]
 245
 246         if config.node:
 247                 hostnames = [ config.node ]
 248                 sitenames = [ plccache.plcdb_hn2lb[config.node] ]
 249
 250         try:
 251                 main(hostnames, sitenames)
 252                 session.flush()
 253         except KeyboardInterrupt:
 254                 print "Killed by interrupt"
 255                 session.flush()
 256                 sys.exit(0)
 257         except:
 258                 email_exception()
 259                 print traceback.print_exc();
 260                 print "fail all..."