def get_nodes_links(slice, chosen_group=None):
nodes = []
links = []
agg_ids = []
id_to_idx = {}
vt_aggs = get_vm_aggregates(slice)
# Getting image for the nodes
# FIXME: avoid to ask the user for the complete name of the method here! he should NOT know it
try:
image_url = reverse('img_media_vt_plugin', args=("server-tiny.png",))
except:
image_url = 'server-tiny.png'
# For every Virtualization AM
for i, agg in enumerate(vt_aggs):
agg_ids.append(agg.pk)
vt_servers = VTServer.objects.filter(
aggregate__pk=agg.pk,
available=True,
)
serverInSameIsland = False
# For every server of the Virtualization AM
for n in vt_servers:
vmNames = []
for name in n.vms.all().filter(sliceId = slice.uuid).values_list('name', flat=True):
vmNames.append(str(name))
vmInterfaces = []
j=1 #FIXME XXX: eth0 is mgmt
for inter in n.getNetworkInterfaces():
inter = inter[1] #WTF: why QuerySet is not iterable straight away, and have to wrap it via enumerate
if not inter.isMgmt:
vmInterfaces.append(dict(name="eth"+str(j), switch=str(inter.switchID), port=str(inter.port)))
j+=1
nodes.append(Node(name = n.name, value = n.id, description = get_node_description(n, vmNames, vmInterfaces),
type = "Virtualized server", image = image_url, aggregate = agg,
# Extra parameters for VM nodes (will be used to show connections to switches)
vmNames = vmNames, vmInterfaces = vmInterfaces
)
)
# For every interface of the server
for j,inter in enumerate(n.ifaces.filter(isMgmt = False)):
#first check datapathId exists.
try:
switch_id = PluginCommunicator.get_object_id(slice, "openflow", "OpenFlowSwitch", name=inter.switchID)
port_id = PluginCommunicator.get_object_id(slice,"openflow", "OpenFlowInterface", switch=switch_id, port_num=inter.port)
except Exception as e:
# print "[WARNING] Problem retrieving links insde plugin 'vt_plugin'. Details: %s" % str(e)
continue
links.append(Link(source = str(n.id), target = str(switch_id),
value = "rsc_id_" + str(port_id) + "-" + str(inter.ifaceName) + ":" + str(inter.port)
)
)
return [nodes, links]
def __init__(self, *args, **kwargs):
# XXX Critical: remove 'slice' from kwargs before calling parent constructor
# Otherwise signature method will changeand problems will arise!
self.slice = kwargs.pop('slice', None)
super(OpenFlowSliceControllerForm, self).__init__(*args, **kwargs)
slice_vms = None
# Note: instance (or OpenFlowSliceInfo) is not initially filled.
# When no controller has been set yet, the dropdown is empty...
try:
slice_vms = PluginCommunicator.get_objects(self.slice, "vt_plugin", "VM", sliceId=self.slice.uuid)
except Exception as e:
print "OpenFlow plug-in: cannot find list of VMs. Exception: %s" % str(e)
# Fill with initial info
try:
controller_address = self.instance.__dict__["controller_url"].split(":")
self.fields["controller_protocol"].initial = controller_address[0]
self.fields["controller_ip"].initial = controller_address[1]
try:
# Obtain index for VM in dropdown list through the slice controller IP
chosen_controller_pk = slice_vms.get(ifaces__ip=controller_address[1]).id
self.fields["slice_vms"].initial = chosen_controller_pk
except:
pass
self.fields["controller_port"].initial = controller_address[2]
except:
pass
# Fill dropdown with data from the database. Call PluginCommunicator to get VMs
if slice_vms:
self.fields["slice_vms"].queryset = slice_vms
# self.fields["controller_ip"].widget = forms.HiddenInput()
# If there are no VMs in the slice, there is no need to show the dropdown
else:
self.fields["slice_vms"].widget = forms.HiddenInput()
def clean(self):
# Manual IP by default. Check later on if user chose from the dropdown list
controller_ip = ""
try:
controller_ip = self.cleaned_data["controller_ip"]
except Exception as e:
print "OpenFlow plug-in: user-seletected IP could not be retrieved. Exception: %s" % str(e)
if not controller_ip:
try:
# Obtain IP from VM selected in the dropdown
controller_vm = PluginCommunicator.get_object(self.slice, "vt_plugin", "VM", pk=self.cleaned_data["slice_vms"])
controller_ip = controller_vm.ifaces.all().exclude(ip__isnull=True)[0].ip
except Exception as e:
print "OpenFlow plug-in: cannot retrieve IP from selected VM. Exception: %s" % str(e)
raise ValidationError(u"Could not obtain IP from controller.")
if "controller_port" in self.cleaned_data and "controller_protocol" in self.cleaned_data and controller_ip:
self.cleaned_data["controller_url"] = "%s:%s:%s" % (self.cleaned_data["controller_protocol"], controller_ip, self.cleaned_data["controller_port"])
if not self.controller_is_unique(self.cleaned_data["controller_url"]):
raise ValidationError(u"Controller '%s:%s' is already being used. Choose another." % (controller_ip, self.cleaned_data["controller_port"]))
# Remove data that will not be saved into the model
#keys_to_pop = filter((lambda key: key != "controller_url"), self.cleaned_data.keys())
#[ self.cleaned_data.pop(key) for key in keys_to_pop ]
# XXX Important. Update controller_url field in the model, by changing the instance
self.instance.controller_url = str(self.cleaned_data["controller_url"])
else:
raise ValidationError(u"Could not obtain a valid controller address. Ensure your input is correct.")
return self.cleaned_data
def __init__(self, *args, **kwargs):
# XXX Critical: remove 'slice' from kwargs before calling parent constructor
# Otherwise signature method will changeand problems will arise!
self.slice = kwargs.pop('slice', None)
super(OpenFlowSliceControllerForm, self).__init__(*args, **kwargs)
slice_vms = None
# Note: instance (or OpenFlowSliceInfo) is not initially filled.
# When no controller has been set yet, the dropdown is empty...
try:
slice_vms = PluginCommunicator.get_objects(self.slice, "vt_plugin", "VM", sliceId=self.slice.uuid)
except Exception as e:
print "OpenFlow plug-in: cannot find list of VMs. Exception: %s" % str(e)
# Fill with initial info
try:
controller_address = self.instance.__dict__["controller_url"].split(":")
self.fields["controller_protocol"].initial = controller_address[0]
self.fields["controller_ip"].initial = controller_address[1]
try:
# Obtain index for VM in dropdown list through the slice controller IP
chosen_controller_pk = slice_vms.get(ifaces__ip=controller_address[1]).id
self.fields["slice_vms"].initial = chosen_controller_pk
except:
pass
self.fields["controller_port"].initial = controller_address[2]
except:
pass
# Fill dropdown with data from the database. Call PluginCommunicator to get VMs
if slice_vms:
self.fields["slice_vms"].queryset = slice_vms
# self.fields["controller_ip"].widget = forms.HiddenInput()
# If there are no VMs in the slice, there is no need to show the dropdown
else:
self.fields["slice_vms"].widget = forms.HiddenInput()
def clean(self):
# Manual IP by default. Check later on if user chose from the dropdown list
controller_ip = ""
try:
controller_ip = self.cleaned_data["controller_ip"]
except Exception as e:
print "OpenFlow plug-in: user-seletected IP could not be retrieved. Exception: %s" % str(e)
if not controller_ip:
try:
# Obtain IP from VM selected in the dropdown
controller_vm = PluginCommunicator.get_object(self.slice, "vt_plugin", "VM", pk=self.cleaned_data["slice_vms"])
controller_ip = controller_vm.ifaces.all().exclude(ip__isnull=True)[0].ip
except Exception as e:
print "OpenFlow plug-in: cannot retrieve IP from selected VM. Exception: %s" % str(e)
raise ValidationError(u"Could not obtain IP from controller.")
if "controller_port" in self.cleaned_data and "controller_protocol" in self.cleaned_data and controller_ip:
self.cleaned_data["controller_url"] = "%s:%s:%s" % (self.cleaned_data["controller_protocol"], controller_ip, self.cleaned_data["controller_port"])
if not self.controller_is_unique(self.cleaned_data["controller_url"]):
raise ValidationError(u"Controller '%s:%s' is already being used. Choose another." % (controller_ip, self.cleaned_data["controller_port"]))
# Remove data that will not be saved into the model
#keys_to_pop = filter((lambda key: key != "controller_url"), self.cleaned_data.keys())
#[ self.cleaned_data.pop(key) for key in keys_to_pop ]
# XXX Important. Update controller_url field in the model, by changing the instance
self.instance.controller_url = str(self.cleaned_data["controller_url"])
else:
raise ValidationError(u"Could not obtain a valid controller address. Ensure your input is correct.")
return self.cleaned_data
def get_nodes_links(slice, chosen_group=None):
nodes = []
links = []
agg_ids = []
id_to_idx = {}
vt_aggs = get_vm_aggregates(slice)
# Getting image for the nodes
# FIXME: avoid to ask the user for the complete name of the method here! he should NOT know it
try:
image_url = reverse('img_media_vt_plugin', args=("server-tiny.png", ))
except:
image_url = 'server-tiny.png'
# For every Virtualization AM
for i, agg in enumerate(vt_aggs):
agg_ids.append(agg.pk)
vt_servers = VTServer.objects.filter(
aggregate__pk=agg.pk,
available=True,
)
serverInSameIsland = False
# For every server of the Virtualization AM
for n in vt_servers:
vmNames = []
for name in n.vms.all().filter(sliceId=slice.uuid).values_list(
'name', flat=True):
vmNames.append(str(name))
vmInterfaces = []
j = 1 #FIXME XXX: eth0 is mgmt
for inter in n.getNetworkInterfaces():
inter = inter[
1] #WTF: why QuerySet is not iterable straight away, and have to wrap it via enumerate
if not inter.isMgmt:
vmInterfaces.append(
dict(name="eth" + str(j),
switch=str(inter.switchID),
port=str(inter.port)))
j += 1
nodes.append(
Node(
name=n.name,
value=n.id,
description=get_node_description(n, vmNames, vmInterfaces),
type="Virtualized server",
image=image_url,
aggregate=agg,
# Extra parameters for VM nodes (will be used to show connections to switches)
vmNames=vmNames,
vmInterfaces=vmInterfaces))
# For every interface of the server
for j, inter in enumerate(n.ifaces.filter(isMgmt=False)):
#first check datapathId exists.
try:
switch_id = PluginCommunicator.get_object_id(
slice,
"openflow",
"OpenFlowSwitch",
name=inter.switchID)
port_id = PluginCommunicator.get_object_id(
slice,
"openflow",
"OpenFlowInterface",
switch=switch_id,
port_num=inter.port)
except Exception as e:
# print "[WARNING] Problem retrieving links insde plugin 'vt_plugin'. Details: %s" % str(e)
continue
links.append(
Link(source=str(n.id),
target=str(switch_id),
value="rsc_id_" + str(port_id) + "-" +
str(inter.ifaceName) + ":" + str(inter.port)))
return [nodes, links]
