class StackData:
def __init__(self):
self.hwData = Hardware()
self.flData = Flavor()
self.imgData = Image()
def config(self, configuration, fileName):
if (configuration == "hardware"):
self.hwData.config(fileName)
elif (configuration == "flavor"):
self.flData.config(fileName)
elif (configuration == "image"):
self.imgData.config(fileName)
def show(self, configuration):
if (configuration == "hardware"):
self.hwData.show()
elif (configuration == "flavor"):
self.flData.show()
elif (configuration == "images"):
self.imgData.show()
def showAll(self):
if self.hwData.getHardwareDataSize() != 0:
self.hwData.show()
else:
print('\n No hardware data found\n')
if self.flData.getFlavorsDataSize() != 0:
self.flData.show()
else:
print('\n No flavors data found\n')
if self.imgData.getImageDataSize() != 0:
self.imgData.show()
else:
print('\n No images data found\n')
logging.info('SUCCESS')
def adminShowAvailableHardware(self):
self.hwData.showAvailableHardware()
def canHost(self, hardwareName, flavorName):
hardware = self.hwData.getHardwareInfo(hardwareName)
flavor = self.flData.getFlavorInfo(flavorName)
if hardware == None or flavor == None:
print("\n Please verify hardware name and flavor name")
logging.error('FAILURE')
return False
if hardware.mem >= flavor.mem and hardware.numDisks >= flavor.numDisks and hardware.numVCpus >= flavor.numVCpus:
return True
else:
return False
class StackData:
def __init__(self):
self.hwData = Hardware()
self.flData = Flavor()
self.imgData = Image()
self.serverData = Server()
def config(self, configuration, fileName):
if configuration == "hardware":
self.hwData.config(fileName)
elif configuration == "flavor":
self.flData.config(fileName)
elif configuration == "image":
self.imgData.config(fileName)
def show(self, configuration):
if configuration == "hardware":
self.hwData.show()
elif configuration == "flavor":
self.flData.show()
elif configuration == "images":
self.imgData.show()
elif configuration == "server list":
self.serverData.showServer()
elif configuration == "server instance":
self.serverData.showInstance()
def showAll(self):
if self.hwData.getHardwareDataSize() != 0:
self.hwData.show()
else:
print('\n No hardware data found\n')
if self.flData.getFlavorsDataSize() != 0:
self.flData.show()
else:
print('\n No flavors data found\n')
if self.imgData.getImageDataSize() != 0:
self.imgData.show()
else:
print('\n No images data found\n')
logging.info('SUCCESS')
def deleteInstance(self, name):
if name in self.serverData.serverDataDict:
server = self.serverData.serverDataDict[name]
flavor = self.flData.getFlavorInfo(server.flName)
allocated = self.hwData.allocatedHardware[server.mcName]
allocated.mem = allocated.mem - flavor.mem
allocated.numVCpus = allocated.numVCpus - flavor.numVCpus
allocated.numDisks = allocated.numDisks - flavor.numDisks
if allocated.mem > 0:
self.hwData.allocatedHardware[name] = allocated
else:
self.hwData.allocatedHardware.pop(server.mcName, None)
self.serverData.serverDataDict.pop(name, None)
else:
print("ERROR!! Instance Not Found..")
def validateImageAndFlavor(self, imageName, flavorName):
if ((imageName in self.imgData.imageDict.keys())
and (flavorName in self.flData.flDataDict.keys())):
return True
else:
return False
def createInstance(self, serverName, imageName, flavorName):
if (self.validateImageAndFlavor(imageName, flavorName)):
mcName = self.getMachine(flavorName, imageName)
if len(mcName) > 0:
print(mcName)
self.serverData.config(serverName, imageName, flavorName,
mcName)
logging.info('SUCCESS')
else:
logging.error("No available hardware found")
else:
print("ERROR! Image name or file name not found")
def getMachine(self, flavorName, imageName):
#aggiestack server create --image linux-ubuntu-16 --flavor small ins1
flavor = self.flData.getFlavorInfo(flavorName)
availableMachines = []
# Find available machines
for name, hwData in self.hwData.hwDataDict.items():
availMem = hwData.mem
availNoDisks = hwData.numDisks
availVcpus = hwData.numVCpus
if name in self.hwData.allocatedHardware:
allocated = self.hwData.allocatedHardware[name]
availMem = availMem - allocated.mem
availNoDisks = availNoDisks - allocated.numDisks
availVcpus = availVcpus - allocated.numVCpus
if availMem >= flavor.mem and availNoDisks >= flavor.numDisks and availVcpus >= flavor.numVCpus:
availableMachines.append(name)
# Find the machine whose rack has the image
for name in availableMachines:
rackName = self.hwData.hwDataDict[name].rack
storedImagesList = self.hwData.rackDataDict[rackName].stored_images
if imageName in storedImagesList:
print("Image already found")
allocated = self.hwData.allocatedHardware.get(
name, HardwareData())
allocated.name = name
allocated.mem = allocated.mem + flavor.mem
allocated.numDisks = allocated.numDisks + flavor.numDisks
allocated.numVCpus = allocated.numVCpus + flavor.numVCpus
self.hwData.allocatedHardware[name] = allocated
return name
# Find any rack where this image can be inserted
for name in availableMachines:
rackName = self.hwData.hwDataDict[name].rack
rackStorage = self.hwData.rackDataDict[rackName].capacity
if rackStorage >= int(
self.imgData.imageDict[imageName].noOfAvailable):
# Copy image to rack storage
self.hwData.rackDataDict[rackName].stored_images.append(
imageName)
self.hwData.rackDataDict[rackName].capacity -= int(
self.imgData.imageDict[imageName].noOfAvailable)
print("Image added to rack storage")
# Return Machine name by updating the parameters
allocated = self.hwData.allocatedHardware.get(
name, HardwareData())
allocated.name = name
allocated.mem = allocated.mem + flavor.mem
allocated.numDisks = allocated.numDisks + flavor.numDisks
allocated.numVCpus = allocated.numVCpus + flavor.numVCpus
self.hwData.allocatedHardware[name] = allocated
return name
if len(availableMachines) == 0:
return ''
else:
# Simply add an instance to any machine
name = availableMachines[0]
allocated = self.hwData.allocatedHardware.get(name, HardwareData())
allocated.name = name
allocated.mem = allocated.mem + flavor.mem
allocated.numDisks = allocated.numDisks + flavor.numDisks
allocated.numVCpus = allocated.numVCpus + flavor.numVCpus
self.hwData.allocatedHardware[name] = allocated
return name
def adminShowAvailableHardware(self):
self.hwData.showAvailableHardware()
def canHost(self, hardwareName, flavorName):
hardware = self.hwData.getHardwareInfo(hardwareName)
flavor = self.flData.getFlavorInfo(flavorName)
if hardware is None or flavor is None:
print("\n Please verify hardware name and flavor name")
logging.error('FAILURE')
return False
if hardware.mem >= flavor.mem and hardware.numDisks >= flavor.numDisks and hardware.numVCpus >= flavor.numVCpus:
return True
else:
return False
def remove(self, machineName):
#removes the machine from the available list
#first remove all the linked instances
tempInst = []
for name, svData in self.serverData.serverDataDict.items():
if (svData.mcName == machineName):
tempInst.append(svData.name)
# for name in tempInst:
# self.deleteInstance(name)
if (len(tempInst) > 0):
logging.error(
"Can not remove. Migrate the running instance from this machine"
)
print(
"Can not remove. Migrate the running instance from this machine"
)
return
try:
del self.hwData.hwDataDict[machineName]
self.hwData.numOfMachines -= 1
logging.info("Machine removed")
except KeyError as ex:
logging.error("This machine does not exist")
def addMachine(self, mem, disk, vcpu, ip, r_name, m_name):
hwData = HardwareData()
if (r_name not in self.hwData.rackDataDict.keys()):
print("This rack does not exist, can not add machine")
logging.error("This rack does not exist, can not add machine")
return
hwData.name = m_name
hwData.rack = r_name
hwData.ip = ip
hwData.mem = mem
hwData.numDisks = disk
hwData.numVCpus = vcpu
self.hwData.hwDataDict[m_name] = hwData
def findRack(self, rackName):
for name, rackData in self.hwData.rackDataDict.items():
if (rackData.name != rackName):
subsRack = rackData.name
self.hwData.rackDataDict.pop(rackName)
return subsRack
def evacuateRack(self, rackName):
if (rackName in self.hwData.rackDataDict.keys()):
substituteRack = self.findRack(rackName)
if (substituteRack == None):
print("Rack Not evacuated, No other rack found")
else:
for name, hwData in self.hwData.hwDataDict.items():
if (hwData.rack == rackName):
hwData.rack = substituteRack
self.hwData.hwDataDict[name] = hwData
else:
print(" Error!! RackName Not Found ")
def adminShowCachedImagesOnRack(self, rackName):
if rackName in self.hwData.rackDataDict:
storedImagesList = self.hwData.rackDataDict[rackName].stored_images
data = [["List of Images"]]
for image in storedImagesList:
data.append([image])
rackStorage = self.hwData.rackDataDict[rackName].capacity
T = Texttable()
T.add_rows(data)
print(T.draw())
print("The amount of storage available in the given rack is ",
rackStorage)
else:
print("Please enter valid rack-name")
