def get_available_ip(request):
# just grab the next available IP that is not currently
# reserved via DHCP. This only get's called from topologies/new.html
# when we've allocated all the IPs to various topologies
# this allows new topologies to be built with overlapping
# IP addresses. This makes the attempt to use 'old' ips that
# are at least not still in use.
logger.info("getting ips that are currently reserved via DHCP")
all_used_ips = wistarUtils.get_consumed_management_ips()
logger.debug(all_used_ips)
next_ip = wistarUtils.get_next_ip(all_used_ips, 2)
logger.debug(next_ip)
response_data = {"result": next_ip}
return HttpResponse(json.dumps(response_data),
content_type="application/json")
def start_topology_old(request):
"""
DEPRECATED
verify the topology exists and is started!
required parameters: topology_name, id of which to clone, cloud_init data
returns json { "status": "running|unknown|powered off", "topology_id": "0" }
"""
context = {"status": "unknown"}
required_fields = set(
['topology_name', 'clone_id', 'script_id', 'script_param'])
if not required_fields.issubset(request.POST):
context["status"] = "unknown"
context["message"] = "Invalid parameters in POST"
return HttpResponse(json.dumps(context),
content_type="application/json")
topology_name = request.POST['topology_name']
clone_id = request.POST['clone_id']
script_id = request.POST['script_id']
script_param = request.POST['script_param']
try:
# get the topology by name
topo = Topology.objects.get(name=topology_name)
except ObjectDoesNotExist:
# uh-oh! it doesn't exist, let's clone it and keep going
# clone the topology with the new name specified!
topology = Topology.objects.get(pk=clone_id)
# get a list of all the currently used IPs defined
all_used_ips = wistarUtils.get_used_ips()
logger.debug(str(all_used_ips))
raw_json = json.loads(topology.json)
for json_object in raw_json:
if "userData" in json_object and "wistarVm" in json_object[
"userData"]:
ud = json_object["userData"]
ip = ud["ip"]
ip_octets = ip.split('.')
# get the next available ip
next_ip = wistarUtils.get_next_ip(all_used_ips, 2)
# mark it as used so it won't appear in the next iteration
all_used_ips.append(next_ip)
ip_octets[3] = str(next_ip)
newIp = ".".join(ip_octets)
ud["ip"] = newIp
ud["configScriptId"] = script_id
ud["configScriptParam"] = script_param
description = "Clone from: %s\nScript Id: %s\nScript Param: %s" % (
clone_id, script_id, script_param)
topo = Topology(name=topology_name,
description=description,
json=json.dumps(raw_json))
topo.save()
try:
# by this point, the topology already exists
logger.debug("Got topo " + str(topo.id))
domain_status = libvirtUtils.get_domains_for_topology("t" +
str(topo.id) +
"_")
if len(domain_status) == 0:
# it has not yet been deployed!
logger.debug("not yet deployed!")
# let's parse the json and convert to simple lists and dicts
config = wistarUtils.load_config_from_topology_json(
topo.json, topo.id)
logger.debug("Deploying to hypervisor now")
# FIXME - should this be pushed into another module?
av.inline_deploy_topology(config)
time.sleep(1)
except Exception as e:
logger.debug(str(e))
context["status"] = "unknown"
context["message"] = "Exception"
return HttpResponse(json.dumps(context),
content_type="application/json")
try:
# at this point, the topology now exists and is deployed!
network_list = libvirtUtils.get_networks_for_topology("t" +
str(topo.id) +
"_")
domain_list = libvirtUtils.get_domains_for_topology("t" +
str(topo.id) + "_")
for network in network_list:
libvirtUtils.start_network(network["name"])
time.sleep(1)
for domain in domain_list:
time.sleep(10)
libvirtUtils.start_domain(domain["uuid"])
context = {
'status': 'booting',
'topologyId': topo.id,
'message': 'sandbox is booting'
}
logger.debug("returning")
return HttpResponse(json.dumps(context),
content_type="application/json")
except Exception as ex:
logger.debug(str(ex))
context["status"] = "unknown"
context["message"] = "Caught Exception %s" % ex
return HttpResponse(json.dumps(context),
content_type="application/json")
def import_topology(request):
logger.debug('---- topology import ----')
try:
if request.method == "POST":
logger.debug(str(request.FILES))
json_file = request.FILES['file']
logger.debug(str(json_file))
json_string = json_file.read()
json_data = json.loads(json_string)
topology = Topology()
topology.name = "Imported Topology"
topology.id = 0
# keep track of all the ips that are currently used
# we will import this topology and ensure that any assigned ips are unique for this environment
currently_allocated_ips = wistarUtils.get_used_ips()
next_ip_floor = 2
logger.debug("Iterating json objects in imported data")
for json_object in json_data:
if "userData" in json_object and "wistarVm" in json_object["userData"]:
logger.debug("Found one")
ud = json_object["userData"]
# check if we have this type of image
image_list = Image.objects.filter(type=ud["type"])
if len(image_list) == 0:
# nope, bail out and let the user know what happened!
logger.error("Could not find image of type " + ud["type"])
return error(request, 'Could not find a valid image of type ' + ud['type'] +
'! Please upload an image of this type and try again')
image = image_list[0]
logger.debug(str(image.id))
json_object["userData"]["image"] = image.id
valid_ip = wistarUtils.get_next_ip(currently_allocated_ips, next_ip_floor)
next_ip_floor = valid_ip
json_object["userData"]["ip"] = configuration.management_prefix + str(valid_ip)
elif json_object["type"] == "wistar.info":
topology.name = json_object["name"]
topology.description = json_object["description"]
topology.json = json.dumps(json_data)
image_list = Image.objects.all().order_by('name')
image_list_json = serializers.serialize('json', Image.objects.all(), fields=('name', 'type'))
script_list = Script.objects.all().order_by('name')
vm_types = configuration.vm_image_types
vm_types_string = json.dumps(vm_types)
context = {'image_list': image_list,
'image_list_json': image_list_json,
'allocated_ips': currently_allocated_ips,
'script_list': script_list,
'vm_types': vm_types_string,
'topo': topology
}
return render(request, 'topologies/new.html', context)
else:
form = ImportForm()
context = {'form': form}
return render(request, 'topologies/import.html', context)
except Exception as e:
logger.error('Could not parse imported data!')
logger.error(e)
return error(request, 'Could not parse imported data')
def import_topology(request):
logger.debug('---- topology import ----')
try:
if request.method == "POST":
logger.debug(str(request.FILES))
json_file = request.FILES['file']
logger.debug(str(json_file))
json_string = json_file.read()
json_data = json.loads(json_string)
topology = Topology()
topology.name = "Imported Topology"
topology.id = 0
# keep track of all the ips that are currently used
# we will import this topology and ensure that any assigned ips are unique for this environment
currently_allocated_ips = wistarUtils.get_used_ips()
next_ip_floor = 2
logger.debug("Iterating json objects in imported data")
for json_object in json_data:
if "userData" in json_object and "wistarVm" in json_object[
"userData"]:
# logger.debug("Found one")
ud = json_object["userData"]
# Tries to import with the same image index and type
# If it doesn't exist, we'll use the closest type
image_id = wistarUtils.get_same_or_similar_image(
ud["image"], ud["type"])
if image_id == None:
# Failed to find the same image or even one with a similar type
logger.error("Could not find image of type " +
ud["type"])
return error(
request, 'Could not find a valid image of type ' +
ud['type'] +
'! Please upload an image of this type and try again'
)
else:
# Either we found a suitable one or even the same one
json_object["userData"]["image"] = image_id
valid_ip = wistarUtils.get_next_ip(currently_allocated_ips,
next_ip_floor)
next_ip_floor = valid_ip
json_object["userData"][
"ip"] = configuration.management_prefix + str(valid_ip)
elif json_object["type"] == "wistar.info":
topology.name = json_object["name"]
topology.description = json_object["description"]
topology.json = json.dumps(json_data)
image_list = Image.objects.all().order_by('name')
image_list_json = serializers.serialize('json',
Image.objects.all(),
fields=('name', 'type'))
script_list = Script.objects.all().order_by('name')
vm_types = configuration.vm_image_types
vm_types_string = json.dumps(vm_types)
dhcp_reservations = wistarUtils.get_consumed_management_ips()
context = {
'image_list': image_list,
'image_list_json': image_list_json,
'allocated_ips': currently_allocated_ips,
'script_list': script_list,
'vm_types': vm_types_string,
'dhcp_reservations': dhcp_reservations,
'topo': topology
}
return render(request, 'topologies/new.html', context)
else:
form = ImportForm()
context = {'form': form}
return render(request, 'topologies/import.html', context)
except Exception as e:
logger.error('Could not parse imported data!')
logger.error(e)
return error(request, 'Could not parse imported data')
