def checkImage(host, path):
assert host
assert fileutil.existsFile(host, path)
try:
res = host.execute("qemu-img info -f qcow2 %s" % util.escape(path))
except exceptions.CommandError, err:
return err.errorMessage
def useImage(host, vmid, image, move=False):
assert fileutil.existsFile(host, image), "Image file does not exist"
try:
host.execute("qemu-img check -f qcow2 %s; echo $?" % util.escape(image))
except exceptions.CommandError, exc:
#Error 1: Leaked clusters, "This means waste of disk space, but no harm to data."
if not exc.errorCode in [1]:
raise
def uploadToHost(self, host):
if not self.isEnabled():
return
if host.clusterState() == ClusterState.NODE:
return
dst = self.getPath()
url = self.getDownloadUrl()
if url:
fileutil.mkdir(host, os.path.dirname(dst))
host.execute("curl -o %(filename)s -sfSR -z %(filename)s %(url)s" % {"url": util.escape(url), "filename": util.escape(dst)})
def _qm(host, vmid, cmd, params=[], maxWait=30, unlock=True):
waitStep = 1
while True:
try:
return host.execute("qm %s %d %s" % (util.escape(cmd), vmid, " ".join(map(util.escape, params))))
except exceptions.CommandError, exc:
if not (exc.errorCode == 4 and "lock" in exc.errorMessage and "timeout" in exc.errorMessage):
raise
if maxWait > 0:
time.sleep(waitStep)
#print "wait %s" % waitStep
waitStep *= 2
maxWait -= waitStep
else:
if not unlock:
raise
unlock = False
#print "unlock"
fileutil.delete(host, "/var/lock/qemu-server/lock-%d.conf" % vmid)
def _monitor(host, vmid, cmd, timeout=60):
assert getState(host, vmid) == generic.State.STARTED, "VM must be running to access monitor"
return host.execute("echo -e %(cmd)s'\n' | socat - unix-connect:/var/run/qemu-server/%(vmid)d.mon; timeout %(timeout)d socat -u unix-connect:/var/run/qemu-server/%(vmid)d.mon - 2>&1 | dd count=0 2>/dev/null; echo" % {"cmd": util.escape(cmd), "vmid": vmid, "timeout": timeout})
def startVnc(host, vmid, port, password):
assert getState(host, vmid) == generic.State.STARTED, "VM must be running to start vnc"
assert process.portFree(host, port)
host.execute("tcpserver -qHRl 0 0 %d qm vncproxy %d %s & echo $! > %s" % ( port, vmid, util.escape(password), _vncPidfile(vmid) ))
assert not process.portFree(host, port)
def _qm(host, vmid, cmd, params=[]):
return host.execute("qm %s %d %s" % (util.escape(cmd), vmid, " ".join(map(util.escape, params))))