scripts/manage-infrastructure.py

   1 #!/usr/bin/python
   2
   3 import subprocess
   4 from optparse import OptionParser
   5
   6 class BuildBoxes:
   7
   8     # everything in the onelab.eu domain
   9     domain = 'onelab.eu'
  10     testmaster = 'testmaster'
  11     build_boxes = \
  12         [ "mirror" ] + \
  13         [ "build%d"%i for i in range (1,4) ]
  14     plc_boxes = [ "testplc" ]
  15     qemu_boxes = \
  16         [ "testqemu%d"%i for i in range (1,4) ] + \
  17         [ "testqemu32-%d"%i for i in range (1,6) ]
  18     test_boxes = plc_boxes + qemu_boxes
  19
  20     def __init__ (self):
  21         # dummy defaults
  22         self.boxes = []
  23         self.do_tracker = False
  24
  25     def fqdn (self, box):
  26         return "%s.%s"%(box,self.domain)
  27     @staticmethod
  28     def root (box): return "root@%s"%box
  29
  30     def run (self,argv,message):
  31         if self.options.dry_run:
  32             print 'DRY_RUN:',
  33             print " ".join(argv)
  34         else:
  35             if message: print "===============",message
  36             subprocess.call(argv)
  37
  38     def backquote (self, argv):
  39         return subprocess.Popen(argv,stdout=subprocess.PIPE).communicate()[0]
  40
  41     def reboot (self,box):
  42         command=['ssh',self.root(box),'shutdown','-r','now']
  43         self.run (command,"Rebooting %s"%box)
  44
  45     def handle_trackers (self):
  46         box = self.fqdn (self.testmaster)
  47         if self.options.probe:
  48             command=['ssh',self.root(box),"head","-100","'trackers*'"]
  49             self.run(command,"========== Inspecting trackers on %s"%box)
  50         else:
  51             command=['ssh',self.root(box),"rm","-rf","'trackers*'"]
  52             self.run(command,"========== Cleaning up trackers on %s"%box)
  53
  54     def handle_build_box (self,box):
  55         if self.options.probe:
  56             command=['ssh',self.root(box),'pgrep','build']
  57             if self.options.dry_run:
  58                 self.run(command,None)
  59             else:
  60                 pids=self.backquote(command)
  61                 if not pids:
  62                     print 'No build process on',box
  63                 else:
  64                     command=['ssh',self.root(box),'ps'] + [ pid for pid in pids.split("\n") if pid]
  65                     self.run(command,"Active build processes on %s"%box)
  66         else:
  67             self.reboot(box)
  68
  69     def handle_plc_box (self,box):
  70         if self.options.probe:
  71             command=['ssh',self.root(box),'vserver-stat']
  72             self.run(command,"Active vservers on %s"%box)
  73         else:
  74             self.reboot(box)
  75
  76     def handle_qemu_box (self,box):
  77         if self.options.probe:
  78             command=['ssh',self.root(box),'pgrep','qemu']
  79             if self.options.dry_run:
  80                 self.run(command,None)
  81             else:
  82                 pids=self.backquote(command)
  83                 if not pids:
  84                     print 'No qemu process on',box
  85                 else:
  86                     command=['ssh',self.root(box),'ps'] + [ pid for pid in pids.split("\n") if pid]
  87                     self.run(command,"Active qemu processes on %s"%box)
  88         else:
  89             self.reboot(box)
  90
  91     def handle_box(self,box):
  92         if box in self.qemu_boxes:
  93             self.handle_qemu_box(self.fqdn(box))
  94         elif box in self.plc_boxes:
  95             self.handle_plc_box(self.fqdn(box))
  96         else:
  97             self.handle_build_box(self.fqdn(box))
  98
  99     def main (self):
 100         usage="""%prog [options] [hostname..(s)]
 101 Default is to act on test boxes only (with trackers clean)"""
 102         parser = OptionParser (usage=usage)
 103         parser.add_option ("-a","--all",action="store_true",dest="all_boxes",default=False,
 104                            help="Acts on build and test boxes")
 105         parser.add_option ("-b","--build",action="store_true",dest="build_only",default=False,
 106                            help="Acts on build boxes only")
 107         parser.add_option ("-t","--trackers",action="store_true",dest="trackers_only",default=False,
 108                            help="Only wipes trackers")
 109         parser.add_option ("-n","--dry-run",action="store_true",dest="dry_run",default=False,
 110                            help="Dry run")
 111         parser.add_option ("-r","--reboot", action="store_false",dest="probe",default=True,
 112                            help="Actually reset/reboot stuff instead of just probing it")
 113         parser.add_option ("-p","--probe", action="store_true",dest="probe",
 114                            help="Probe stuff, no side effect")
 115
 116         (self.options,args) = parser.parse_args()
 117
 118         # use given hostnames if provided
 119         if args:
 120             self.boxes=args
 121             # if hostnames are specified, let's stay on the safe side and don't reset trackers
 122             self.do_tracker = False
 123         elif self.options.all_boxes:
 124             self.boxes=self.build_boxes + self.test_boxes
 125             self.do_tracker = True
 126         elif self.options.build_only:
 127             self.boxes=self.build_boxes
 128             self.do_tracker = False
 129         elif self.options.trackers_only:
 130             self.boxes = []
 131             self.do_tracker = True
 132         # default
 133         else:
 134             self.boxes = self.test_boxes
 135             self.do_tracker = True
 136
 137         if self.do_tracker:
 138             self.handle_trackers ()
 139         for box in self.boxes:
 140             self.handle_box (box)
 141
 142
 143 if __name__ == "__main__":
 144     BuildBoxes().main()