def generate_scenario_3_with_2_hypervisors(self):
vms = []
root = modelroot.ModelRoot()
# number of nodes
count_node = 2
# define ressouce ( CPU, MEM disk, ... )
mem = resource.Resource(resource.ResourceType.memory)
# 2199.954 Mhz
num_cores = resource.Resource(resource.ResourceType.cpu_cores)
disk = resource.Resource(resource.ResourceType.disk)
root.create_resource(mem)
root.create_resource(num_cores)
root.create_resource(disk)
for i in range(0, count_node):
node_uuid = "Node_{0}".format(i)
node = hypervisor.Hypervisor()
node.uuid = node_uuid
node.hostname = "hostname_{0}".format(i)
mem.set_capacity(node, 132)
disk.set_capacity(node, 250)
num_cores.set_capacity(node, 40)
root.add_hypervisor(node)
vm1 = modelvm.VM()
vm1.uuid = "73b09e16-35b7-4922-804e-e8f5d9b740fc"
mem.set_capacity(vm1, 2)
disk.set_capacity(vm1, 20)
num_cores.set_capacity(vm1, 10)
vms.append(vm1)
root.add_vm(vm1)
vm2 = modelvm.VM()
vm2.uuid = "a4cab39b-9828-413a-bf88-f76921bf1517"
mem.set_capacity(vm2, 2)
disk.set_capacity(vm2, 20)
num_cores.set_capacity(vm2, 10)
vms.append(vm2)
root.add_vm(vm2)
root.get_mapping().map(root.get_hypervisor_from_id("Node_0"),
root.get_vm_from_id(str(vm1.uuid)))
root.get_mapping().map(root.get_hypervisor_from_id("Node_1"),
root.get_vm_from_id(str(vm2.uuid)))
return root
def generate_scenario_1(self):
'''
Simulates a cluster with 2 hypervisors and
2 VMs using 1:1 mapping
'''
current_state_cluster = modelroot.ModelRoot()
count_node = 2
count_vm = 2
mem = resource.Resource(resource.ResourceType.memory)
num_cores = resource.Resource(resource.ResourceType.cpu_cores)
disk = resource.Resource(resource.ResourceType.disk)
disk_capacity =\
resource.Resource(resource.ResourceType.disk_capacity)
current_state_cluster.create_resource(mem)
current_state_cluster.create_resource(num_cores)
current_state_cluster.create_resource(disk)
current_state_cluster.create_resource(disk_capacity)
for i in range(0, count_node):
node_uuid = "Node_{0}".format(i)
node = hypervisor.Hypervisor()
node.uuid = node_uuid
node.hostname = "hostname_{0}".format(i)
node.state = 'up'
mem.set_capacity(node, 64)
disk_capacity.set_capacity(node, 250)
num_cores.set_capacity(node, 40)
current_state_cluster.add_hypervisor(node)
for i in range(0, count_vm):
vm_uuid = "VM_{0}".format(i)
vm = modelvm.VM()
vm.uuid = vm_uuid
vm.state = vm_state.VMState.ACTIVE
mem.set_capacity(vm, 2)
disk.set_capacity(vm, 20)
num_cores.set_capacity(vm, 10)
current_state_cluster.add_vm(vm)
current_state_cluster.get_mapping().map(
current_state_cluster.get_hypervisor_from_id("Node_0"),
current_state_cluster.get_vm_from_id("VM_0"))
current_state_cluster.get_mapping().map(
current_state_cluster.get_hypervisor_from_id("Node_1"),
current_state_cluster.get_vm_from_id("VM_1"))
return current_state_cluster
def generate_scenario_2(self):
"""Simulates a cluster
With 4 hypervisors and 6 VMs all mapped to one hypervisor
"""
current_state_cluster = modelroot.ModelRoot()
count_node = 4
count_vm = 6
mem = resource.Resource(resource.ResourceType.memory)
num_cores = resource.Resource(resource.ResourceType.cpu_cores)
disk = resource.Resource(resource.ResourceType.disk)
disk_capacity =\
resource.Resource(resource.ResourceType.disk_capacity)
current_state_cluster.create_resource(mem)
current_state_cluster.create_resource(num_cores)
current_state_cluster.create_resource(disk)
current_state_cluster.create_resource(disk_capacity)
for i in range(0, count_node):
node_uuid = "Node_{0}".format(i)
node = hypervisor.Hypervisor()
node.uuid = node_uuid
node.hostname = "hostname_{0}".format(i)
node.state = 'up'
mem.set_capacity(node, 64)
disk_capacity.set_capacity(node, 250)
num_cores.set_capacity(node, 16)
current_state_cluster.add_hypervisor(node)
for i in range(0, count_vm):
vm_uuid = "VM_{0}".format(i)
vm = modelvm.VM()
vm.uuid = vm_uuid
vm.state = vm_state.VMState.ACTIVE
mem.set_capacity(vm, 2)
disk.set_capacity(vm, 20)
num_cores.set_capacity(vm, 10)
current_state_cluster.add_vm(vm)
current_state_cluster.get_mapping().map(
current_state_cluster.get_hypervisor_from_id("Node_0"),
current_state_cluster.get_vm_from_id("VM_%s" % str(i)))
return current_state_cluster
def get_latest_cluster_data_model(self):
LOG.debug("Getting latest cluster data model")
cluster = model_root.ModelRoot()
mem = resource.Resource(resource.ResourceType.memory)
num_cores = resource.Resource(resource.ResourceType.cpu_cores)
disk = resource.Resource(resource.ResourceType.disk)
disk_capacity = resource.Resource(resource.ResourceType.disk_capacity)
cluster.create_resource(mem)
cluster.create_resource(num_cores)
cluster.create_resource(disk)
cluster.create_resource(disk_capacity)
flavor_cache = {}
hypervisors = self.wrapper.get_hypervisors_list()
for h in hypervisors:
service = self.wrapper.nova.services.find(id=h.service['id'])
# create hypervisor in cluster_model_collector
hypervisor = obj_hypervisor.Hypervisor()
hypervisor.uuid = service.host
hypervisor.hostname = h.hypervisor_hostname
# set capacity
mem.set_capacity(hypervisor, h.memory_mb)
disk.set_capacity(hypervisor, h.free_disk_gb)
disk_capacity.set_capacity(hypervisor, h.local_gb)
num_cores.set_capacity(hypervisor, h.vcpus)
hypervisor.state = h.state
hypervisor.status = h.status
cluster.add_hypervisor(hypervisor)
vms = self.wrapper.get_vms_by_hypervisor(str(service.host))
for v in vms:
# create VM in cluster_model_collector
vm = obj_vm.VM()
vm.uuid = v.id
# nova/nova/compute/vm_states.py
vm.state = getattr(v, 'OS-EXT-STS:vm_state')
# set capacity
self.wrapper.get_flavor_instance(v, flavor_cache)
mem.set_capacity(vm, v.flavor['ram'])
disk.set_capacity(vm, v.flavor['disk'])
num_cores.set_capacity(vm, v.flavor['vcpus'])
cluster.get_mapping().map(hypervisor, vm)
cluster.add_vm(vm)
return cluster
def generate_scenario_5_with_vm_disk_0(self):
vms = []
current_state_cluster = modelroot.ModelRoot()
# number of nodes
count_node = 1
# number of vms
count_vm = 1
# define ressouce ( CPU, MEM disk, ... )
mem = resource.Resource(resource.ResourceType.memory)
# 2199.954 Mhz
num_cores = resource.Resource(resource.ResourceType.cpu_cores)
disk = resource.Resource(resource.ResourceType.disk)
current_state_cluster.create_resource(mem)
current_state_cluster.create_resource(num_cores)
current_state_cluster.create_resource(disk)
for i in range(0, count_node):
node_uuid = "Node_{0}".format(i)
node = hypervisor.Hypervisor()
node.uuid = node_uuid
node.hostname = "hostname_{0}".format(i)
mem.set_capacity(node, 4)
disk.set_capacity(node, 4)
num_cores.set_capacity(node, 4)
current_state_cluster.add_hypervisor(node)
for i in range(0, count_vm):
vm_uuid = "VM_{0}".format(i)
vm = modelvm.VM()
vm.uuid = vm_uuid
mem.set_capacity(vm, 2)
disk.set_capacity(vm, 0)
num_cores.set_capacity(vm, 4)
vms.append(vm)
current_state_cluster.add_vm(vm)
current_state_cluster.get_mapping().map(
current_state_cluster.get_hypervisor_from_id("Node_0"),
current_state_cluster.get_vm_from_id("VM_0"))
return current_state_cluster
def generate_scenario_1(self):
vms = []
current_state_cluster = modelroot.ModelRoot()
# number of nodes
count_node = 5
# number max of vm per node
node_count_vm = 7
# total number of virtual machine
count_vm = (count_node * node_count_vm)
# define ressouce ( CPU, MEM disk, ... )
mem = resource.Resource(resource.ResourceType.memory)
# 2199.954 Mhz
num_cores = resource.Resource(resource.ResourceType.cpu_cores)
disk = resource.Resource(resource.ResourceType.disk)
current_state_cluster.create_resource(mem)
current_state_cluster.create_resource(num_cores)
current_state_cluster.create_resource(disk)
for i in range(0, count_node):
node_uuid = "Node_{0}".format(i)
node = hypervisor.Hypervisor()
node.uuid = node_uuid
node.hostname = "hostname_{0}".format(i)
mem.set_capacity(node, 132)
disk.set_capacity(node, 250)
num_cores.set_capacity(node, 40)
current_state_cluster.add_hypervisor(node)
for i in range(0, count_vm):
vm_uuid = "VM_{0}".format(i)
vm = modelvm.VM()
vm.uuid = vm_uuid
mem.set_capacity(vm, 2)
disk.set_capacity(vm, 20)
num_cores.set_capacity(vm, 10)
vms.append(vm)
current_state_cluster.add_vm(vm)
current_state_cluster.get_mapping().map(
current_state_cluster.get_hypervisor_from_id("Node_0"),
current_state_cluster.get_vm_from_id("VM_0"))
current_state_cluster.get_mapping().map(
current_state_cluster.get_hypervisor_from_id("Node_0"),
current_state_cluster.get_vm_from_id("VM_1"))
current_state_cluster.get_mapping().map(
current_state_cluster.get_hypervisor_from_id("Node_1"),
current_state_cluster.get_vm_from_id("VM_2"))
current_state_cluster.get_mapping().map(
current_state_cluster.get_hypervisor_from_id("Node_2"),
current_state_cluster.get_vm_from_id("VM_3"))
current_state_cluster.get_mapping().map(
current_state_cluster.get_hypervisor_from_id("Node_2"),
current_state_cluster.get_vm_from_id("VM_4"))
current_state_cluster.get_mapping().map(
current_state_cluster.get_hypervisor_from_id("Node_2"),
current_state_cluster.get_vm_from_id("VM_5"))
current_state_cluster.get_mapping().map(
current_state_cluster.get_hypervisor_from_id("Node_3"),
current_state_cluster.get_vm_from_id("VM_6"))
current_state_cluster.get_mapping().map(
current_state_cluster.get_hypervisor_from_id("Node_4"),
current_state_cluster.get_vm_from_id("VM_7"))
return current_state_cluster