qaapi/qa/tests/boot_node.py

   1 #!/usr/bin/python
   2
   3 import os
   4 import sys
   5 import signal
   6 import time
   7 import tempfile
   8 import select
   9 import base64
  10 import traceback
  11 from Test import Test
  12 from qa import utils
  13 from qa.Nodes import Node, Nodes
  14
  15 image_types = ['node-iso', 'node-usb', 'generic-iso', 'generic-usb']
  16
  17 def killqemu(pid):
  18     try:
  19         os.kill(pid, signal.SIGKILL)
  20         os.waitpid(pid,os.WNOHANG)
  21     except:
  22         pass
  23
  24 class boot_node(Test):
  25     """
  26     Attempts to boot the specified node using qemu.
  27     """
  28
  29     def state_nanny(self):
  30         hostname = self.hostname
  31         nodes = self.config.api.GetNodes(self.config.auth, [hostname], ['boot_state'])
  32         node = nodes[0]
  33         boot_state = node['boot_state']
  34         if True or self.config.verbose:
  35             utils.header("%(hostname)s boot_state is %(boot_state)s" % locals(), False)
  36
  37         if boot_state in ['boot']:
  38             self.exit = True
  39
  40         if self.config.verbose:
  41             if boot_state in ['boot']:
  42                 utils.header("%(hostname)s correctly installed and booted" % locals(), False)
  43             else:
  44                 utils.header("%(hostname)s not fully booted" % locals(), False)
  45         self.boot_state = boot_state
  46         return self.exit
  47
  48     def console_nanny(self,console_states):
  49         #ready = select.select([],[self.stdout],[],1)[1]
  50         output = 0
  51         if True or len(ready)>0:
  52             output = 1
  53             retry = True
  54             while retry:
  55                 try:
  56                     lines = self.stdout.readlines()
  57                     retry = False
  58                 except IOError, e:
  59                     pass
  60
  61             #for searchstring in console_states.keys():
  62             #    result = line.find(searchstring)
  63                 # if result... ret = console_states[searchstring]
  64             #    break
  65                 # check result for whether we found it
  66
  67             # for now just print it out
  68             for line in lines:
  69                 print line
  70                 utils.header(line)
  71             # should be parsing for special strings that indicate whether
  72             # we've reached a particular state within the boot sequence
  73
  74         return output
  75
  76     def call(self, plc_name, hostname, image_type = 'node-iso', disk_size="10G", wait = 30):
  77
  78
  79         # Get this nodes configuration
  80         node = self.config.get_node(hostname)
  81         # Which plc does this node talk to
  82         plc = self.config.get_plc(plc_name)
  83         api = plc.config.api
  84         auth = plc.config.auth
  85         path = node.get_path()
  86         host = node['host']
  87         homedir = node['homedir']
  88         tmpdir = '/usr/tmp/'
  89         bootimage_filename = "%(hostname)s-bootcd.iso" % locals()
  90         diskimage_filename = "%(hostname)s-hda.img" % locals()
  91         bootimage = "%(homedir)s/%(bootimage_filename)s" % locals()
  92         diskimage = "%(homedir)s/%(diskimage_filename)s" % locals()
  93         diskimage_path = "/%(path)s/%(diskimage_filename)s" % locals()
  94         bootimage_tmppath = "%(tmpdir)s/%(bootimage_filename)s" % locals()
  95         bootimage_path = "%(path)s/%(bootimage_filename)s" % locals()
  96
  97         if host in ['localhost', None]:
  98             remote_bootimage_path = bootimage_path
  99         else:
 100             remote_bootimage_path = "%(host)s:%(bootimage_path)s" % locals()
 101
 102         # wait up to 30 minutes for a node to boot and install itself correctly
 103         self.hostname = hostname
 104         self.totaltime = 60*60*wait
 105
 106         # validate hostname
 107         nodes = api.GetNodes(auth, [hostname], ['hostname'])
 108         if not nodes:
 109             raise Exception, "%s not found at plc  %s" % (hostname, plc['name'])
 110         node.update(nodes[0])
 111
 112         # Create boot image
 113         if self.config.verbose:
 114             utils.header("Creating bootcd for %(hostname)s at %(bootimage_path)s" % locals())
 115         nodeimage = api.GetBootMedium(auth, hostname, image_type, '', ['serial'])
 116         fp = open(bootimage_tmppath, 'w')
 117         fp.write(base64.b64decode(nodeimage))
 118         fp.close()
 119
 120         # Move the boot image to the nodes home directory
 121         node.host_commands("mkdir -p %(homedir)s" % locals())
 122         node.scp(bootimage_tmppath, "%(remote_bootimage_path)s" % locals())
 123
 124         # Create a temporary disk image
 125         qemu_img_cmd = "qemu-img create -f qcow2 %(diskimage)s %(disk_size)s" % locals()
 126         node.host_commands(qemu_img_cmd)
 127
 128         if self.config.verbose:
 129             utils.header("Booting %(hostname)s" % locals())
 130
 131         # Attempt to boot this node image
 132
 133         # generate a temp filename to which qemu should store its pid (crappy approach)
 134         tmp = tempfile.mkstemp(".pid","qemu_")
 135         pidfile=tmp[1]
 136         os.unlink(pidfile)
 137
 138         os.close(tmp[0])
 139         # boot node with ramsize memory
 140         ramsize=1024
 141
 142         # always use the 64 bit version of qemu, as this will work on both 32 & 64 bit host kernels
 143         bootcmd = "qemu-system-x86_64"
 144         # tell qemu to store its pid ina  file
 145         bootcmd = bootcmd + " -pidfile %(pidfile)s " % locals()
 146         # boot with ramsize memory
 147         bootcmd = bootcmd + " -m %(ramsize)s" % locals()
 148         # uniprocessor only
 149         bootcmd = bootcmd + " -smp 1"
 150         # redirect incomming tcp connections on specified port to guest node
 151         if 'redir_ssh_port' in node and node['redir_ssh_port']:
 152             port = node['redir_ssh_port']
 153             ip = node['nodenetworks'][0]['ip']
 154             bootcmd = bootcmd + " -redir tcp:%(port)s:%(ip)s:22" % locals()
 155         # no graphics support -> assume we are booting via serial console
 156         bootcmd = bootcmd + " -nographic"
 157         # boot from the supplied cdrom iso file
 158         bootcmd = bootcmd + " -boot d"
 159         bootcmd = bootcmd + " -cdrom %(bootimage)s" % locals()
 160         # hard disk image to use for the node
 161         bootcmd = bootcmd + " %(diskimage)s" % locals()
 162         # redirect stdout, stderr to logfile
 163         bootcmd = bootcmd + " 2>&1 >> %s " % (self.config.log_filename)
 164
 165         # kill any old qemu processes for this node
 166         pid_cmd = "ps -elfy | grep qemu | grep %(hostname)s | awk '{print$3}'" % locals()
 167         (status, output) = node.host_commands(pid_cmd)
 168         pids = " ".join(output.split("\n")).strip()
 169         if pids:
 170             kill_cmd = "kill %(pids)s" % locals()
 171             (status, output) = node.host_commands(kill_cmd)
 172
 173         # launch qemu
 174         (self.stdin, self.stdout, self.stderr) = node.host_popen3(bootcmd)
 175
 176         # wait for qemu to start up
 177         time.sleep(3)
 178         # get qemu's pid from its pidfile (crappy approach)
 179         pid_cmd = "cat %(pidfile)s" % locals()
 180         (staus, output)  = node.host_commands(pid_cmd)
 181         self.pid = output.strip()
 182         #fp = file(pidfile)
 183         #buf=fp.read()
 184         #self.pid=int(buf)
 185         #fp.close()
 186         #os.unlink(pidfile)
 187
 188         # loop until the node is either fully booted, some error
 189         # occured, or we've reached our totaltime out
 190         def catch(sig, frame):
 191             self.totaltime = self.totaltime -1
 192             utils.header("beep %d\n" %self.totaltime, False)
 193             total = self.totaltime
 194             if (total == 0) or \
 195                    (((total % 60)==0) and self.state_nanny()):
 196                 killqemu(self.pid)
 197                 self.exit = True
 198             else:
 199                 signal.alarm(1)
 200
 201         try:
 202             signal.signal(signal.SIGALRM, catch)
 203             signal.alarm(1)
 204             self.exit = False
 205
 206             #console_states = {"login:":1}
 207             while not self.exit:
 208                 pass
 209                 #try:
 210                 #    self.console_nanny(console_states)
 211                 #except: # need a better way to catch exceptions
 212                 #    traceback.print_exc()
 213                 #    pass
 214
 215             signal.alarm(0)
 216         except:
 217             signal.alarm(0)
 218
 219         killqemu(self.pid)
 220         return 1
 221
 222 if __name__ == '__main__':
 223     args = tuple(sys.argv[1:])
 224     boot_node()(*args)