def startDomain(vm):
#Getting connection
conn = XendManager.__getConnection()
with open(HdManager.getConfigFilePath(vm),'r') as openConfig:
xmlConf = conn.domainXMLFromNative('xen-xm', openConfig.read(), 0)
if XendManager.isVmRunning(vm.name) and not XendManager.isVmRunningByUUID(vm.uuid):
#Duplicated name; trying to find an Alias
newVmName = XendManager.__findAliasForDuplicatedVmName(vm)
subprocess.call(['/usr/sbin/xm','create','name='+newVmName,XendManager.sanitize_arg(HdManager.getConfigFilePath(vm))])
else:
try:
#Try first using libvirt call
#conn.createXML(xmlConf,0)
raise Exception("Skip") #otherwise stop is ridicously slow
except Exception as e:
#Fallback solution; workarounds BUG that created wrong .conf files (extra spaces that libvirt cannot parse)
subprocess.call(['/usr/sbin/xm','create',XendManager.sanitize_arg(HdManager.getConfigFilePath(vm))])
time.sleep(OXA_XEN_CREATE_WAIT_TIME)
if not XendManager.isVmRunningByUUID(vm.uuid):
#TODO: add more info to exception
raise Exception("Could not start VM")
def startDomain(vm):
#Getting connection
conn = XendManager.__getConnection()
with open(HdManager.getConfigFilePath(vm), 'r') as openConfig:
xmlConf = conn.domainXMLFromNative('xen-xm', openConfig.read(), 0)
#con = libvirt.open('xen:///')
#dom = con.createLinux(xmlConf,0)
if XendManager.isVmRunning(
vm.name) and not XendManager.isVmRunningByUUID(vm.uuid):
#Duplicated name; trying to find an Alias
newVmName = XendManager.__findAliasForDuplicatedVmName(vm)
command_list = [
'/usr/sbin/xm', 'create', 'name=' + newVmName,
XendManager.sanitize_arg(HdManager.getConfigFilePath(vm))
]
process = subprocess.Popen(command_list,
shell=False,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
out, err = process.communicate()
else:
try:
#Try first using libvirt call
#XendManager.logger.warning('creating vm using python-libvirt methods')
#XendManager.logger.warning(xmlConf)
#conn.createXML(xmlConf,0)
#XendManager.logger.warning(XendManager.sanitize_arg(HdManager.getConfigFilePath(vm)))
#XendManager.logger.warning('created vm?')
raise Exception("Skip") #otherwise stop is ridicously slow
except Exception as e:
#Fallback solution; workarounds BUG that created wrong .conf files (extra spaces that libvirt cannot parse)
command_list = [
'/usr/sbin/xm', 'create',
XendManager.sanitize_arg(HdManager.getConfigFilePath(vm))
]
process = subprocess.Popen(command_list,
shell=False,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
out, err = process.communicate()
time.sleep(OXA_XEN_CREATE_WAIT_TIME)
if not XendManager.isVmRunningByUUID(vm.uuid):
# Complete with other types of exceptions
detailed_error = ""
if "Not enough free memory" in err:
detailed_error = " because there is not enough free memory in that server. Try another."
raise Exception("Could not start VM%s" % detailed_error)
def startVM(id,vm):
try:
#Trigger
HdManager.startHook(vm)
XendManager.startDomain(vm)
XenProvisioningDispatcher.logger.info("VM named "+vm.name+" has been started.")
#Send async notification
XmlRpcClient.sendAsyncProvisioningActionStatus(id,"SUCCESS","")
except Exception as e:
XenProvisioningDispatcher.logger.error(str(e))
#Send async notification
XmlRpcClient.sendAsyncProvisioningActionStatus(id,"FAILED",str(e))
return
def __createParavirtualizationFileHdConfigFile(vm, env):
template_name = "paraVirtualizedFileHd.pt"
template = env.get_template(template_name)
#Set vars&render
output = template.render(kernelImg=OXA_XEN_SERVER_KERNEL,
initrdImg=OXA_XEN_SERVER_INITRD,
hdFilePath=HdManager.getHdPath(vm),
swapFilePath=HdManager.getSwapPath(vm),
vm=vm)
#write file
cfile = open(HdManager.getConfigFilePath(vm), 'w')
cfile.write(output)
cfile.close()
def __createFullvirtualizationFileHdConfigFile(vm,env):
template_name = "fullVirtualizedFileHd.pt"
template = env.get_template(template_name)
#Set vars&render
output = template.render(
kernelImg=OXA_XEN_SERVER_KERNEL,
initrdImg=OXA_XEN_SERVER_INITRD,
hdFilePath=HdManager.getHdPath(vm),
#swapFilePath=HdManager.getSwapPath(vm),
vm=vm)
#write file
cfile = open(HdManager.getConfigFilePath(vm),'w')
cfile.write(output)
cfile.close()
def startVM(id, vm):
try:
#Trigger
HdManager.startHook(vm)
XendManager.startDomain(vm)
XenProvisioningDispatcher.logger.info("VM named " + vm.name +
" has been started.")
#Send async notification
XmlRpcClient.sendAsyncProvisioningActionStatus(id, "SUCCESS", "")
except Exception as e:
XenProvisioningDispatcher.logger.error(str(e))
#Send async notification
XmlRpcClient.sendAsyncProvisioningActionStatus(
id, "FAILED", str(e))
return
def __createConfigFile(vm, env):
template_name = "spirentSTCVMTemplate.pt"
template = env.get_template(template_name)
#Set vars&render
output = template.render(
kernelImg=OXA_XEN_SERVER_KERNEL,
initrdImg=OXA_XEN_SERVER_INITRD,
hdFilePath=HdManager.getHdPath(vm),
#swapFilePath=HdManager.getSwapPath(vm),
vm=vm)
#write file
cfile = open(HdManager.getConfigFilePath(vm), 'w')
cfile.write(output)
cfile.close()
def deleteVM(id,vm): try: try: #if it wasn't stopped, do it XendManager.stopDomain(vm) except Exception as e: pass #Trigger Hd Deletion in Remote HdManager.delete(vm) #Send async notification XmlRpcClient.sendAsyncProvisioningActionStatus(id,"SUCCESS","") except Exception as e: XenProvisioningDispatcher.logger.error(str(e)) #Send async notification XmlRpcClient.sendAsyncProvisioningActionStatus(id,"FAILED",str(e)) return
def deleteVM(id, vm):
try:
try:
#if it wasn't stopped, do it
XendManager.stopDomain(vm)
except Exception as e:
pass
#Trigger Hd Deletion in Remote
HdManager.delete(vm)
#Send async notification
XmlRpcClient.sendAsyncProvisioningActionStatus(id, "SUCCESS", "")
except Exception as e:
XenProvisioningDispatcher.logger.error(str(e))
#Send async notification
XmlRpcClient.sendAsyncProvisioningActionStatus(
id, "FAILED", str(e))
return
def startDomain(vm):
#Getting connection
conn = XendManager.__getConnection()
with open(HdManager.getConfigFilePath(vm),'r') as openConfig:
xmlConf = conn.domainXMLFromNative('xen-xm', openConfig.read(), 0)
#con = libvirt.open('xen:///')
#dom = con.createLinux(xmlConf,0)
if XendManager.isVmRunning(vm.name) and not XendManager.isVmRunningByUUID(vm.uuid):
#Duplicated name; trying to find an Alias
newVmName = XendManager.__findAliasForDuplicatedVmName(vm)
command_list = ['/usr/sbin/xm', 'create', 'name=' + newVmName, XendManager.sanitize_arg(HdManager.getConfigFilePath(vm))]
process = subprocess.Popen(command_list, shell=False, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = process.communicate()
else:
try:
#Try first using libvirt call
#XendManager.logger.warning('creating vm using python-libvirt methods')
#XendManager.logger.warning(xmlConf)
#conn.createXML(xmlConf,0)
#XendManager.logger.warning(XendManager.sanitize_arg(HdManager.getConfigFilePath(vm)))
#XendManager.logger.warning('created vm?')
raise Exception("Skip") #otherwise stop is ridicously slow
except Exception as e:
#Fallback solution; workarounds BUG that created wrong .conf files (extra spaces that libvirt cannot parse)
command_list = ['/usr/sbin/xm', 'create', XendManager.sanitize_arg(HdManager.getConfigFilePath(vm))]
process = subprocess.Popen(command_list, shell=False, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = process.communicate()
time.sleep(OXA_XEN_CREATE_WAIT_TIME)
if not XendManager.isVmRunningByUUID(vm.uuid):
# Complete with other types of exceptions
detailed_error = ""
if "Not enough free memory" in err:
detailed_error = " because there is not enough free memory in that server. Try another."
raise Exception("Could not start VM%s" % detailed_error)
def __createHVMFileHdConfigFile(vm, env):
template_name = "mediacatHVMFileHd.pt"
template = env.get_template(template_name)
#Set vars&render
output = template.render(kernelImg=OXA_XEN_SERVER_KERNEL,
initrdImg=OXA_XEN_SERVER_INITRD,
vm=vm)
#write file
cfile = open(HdManager.getConfigFilePath(vm), 'w')
cfile.write(output)
cfile.close()
def __createHVMFileHdConfigFile(vm,env):
template_name = "mediacatHVMFileHd.pt"
template = env.get_template(template_name)
#Set vars&render
output = template.render(
kernelImg=OXA_XEN_SERVER_KERNEL,
initrdImg=OXA_XEN_SERVER_INITRD,
vm=vm)
#write file
cfile = open(HdManager.getConfigFilePath(vm),'w')
cfile.write(output)
cfile.close()
def createVMfromImage(id, vm):
pathToMountPoint = ""
XenProvisioningDispatcher.logger.info(
"Initiating creation process for VM: " + vm.name +
" under project: " + vm.project_id + " and slice: " + vm.slice_id)
try:
#Clone HD
HdManager.clone(vm)
XenProvisioningDispatcher.logger.debug("HD cloned successfully...")
#Mount copy
pathToMountPoint = HdManager.mount(vm)
XenProvisioningDispatcher.logger.debug("Mounting at:" +
pathToMountPoint)
XenProvisioningDispatcher.logger.debug(
"HD mounted successfully...")
#Configure VM OS
VMConfigurator.configureVmDisk(vm, pathToMountPoint)
#Umount copy
HdManager.umount(vm, pathToMountPoint)
XenProvisioningDispatcher.logger.debug(
"HD unmounted successfully...")
#Synthesize config file
VMConfigurator.createVmConfigurationFile(vm)
XenProvisioningDispatcher.logger.debug(
"XEN configuration file created successfully...")
XenProvisioningDispatcher.logger.info("Creation of VM " + vm.name +
" has been successful!!")
#Send async notification
XmlRpcClient.sendAsyncProvisioningActionStatus(id, "SUCCESS", "")
except Exception as e:
XenProvisioningDispatcher.logger.error(str(e))
#Send async notification
try:
HdManager.umount(vm, pathToMountPoint)
except:
pass
try:
#Delete VM disc and conf file if the error is not due because
#the VM already exists
if not isinstance(e, VMalreadyExists):
XenProvisioningDispatcher.deleteVM(id, vm)
except:
pass
XmlRpcClient.sendAsyncProvisioningActionStatus(
id, "FAILED", str(e))
return
def createVMfromImage(id,vm):
pathToMountPoint = ""
XenProvisioningDispatcher.logger.info("Initiating creation process for VM: "+vm.name+" under project: "+vm.project_id+" and slice: "+vm.slice_id)
try:
#Clone HD
HdManager.clone(vm)
XenProvisioningDispatcher.logger.debug("HD cloned successfully...")
#Mount copy
pathToMountPoint=HdManager.mount(vm)
XenProvisioningDispatcher.logger.debug("Mounting at:"+pathToMountPoint)
XenProvisioningDispatcher.logger.debug("HD mounted successfully...")
#Configure VM OS
VMConfigurator.configureVmDisk(vm,pathToMountPoint)
#Umount copy
HdManager.umount(vm,pathToMountPoint)
XenProvisioningDispatcher.logger.debug("HD unmounted successfully...")
#Synthesize config file
VMConfigurator.createVmConfigurationFile(vm)
XenProvisioningDispatcher.logger.debug("XEN configuration file created successfully...")
XenProvisioningDispatcher.logger.info("Creation of VM "+vm.name+" has been successful!!")
#Send async notification
XmlRpcClient.sendAsyncProvisioningActionStatus(id,"SUCCESS","")
except Exception as e:
XenProvisioningDispatcher.logger.error(str(e))
#Send async notification
try:
HdManager.umount(vm,pathToMountPoint)
except:
pass
try:
#Delete VM disc and conf file if the error is not due because
#the VM already exists
if not isinstance(e,VMalreadyExists):
XenProvisioningDispatcher.deleteVM(id,vm)
except:
pass
XmlRpcClient.sendAsyncProvisioningActionStatus(id,"FAILED",str(e))
return