def delete(request, topology_id):
logger.debug('---- topology delete ----')
topology_prefix = "t%s_" % topology_id
if configuration.deployment_backend == "kvm":
network_list = libvirtUtils.get_networks_for_topology(topology_prefix)
for network in network_list:
logger.debug("undefine network: " + network["name"])
libvirtUtils.undefine_network(network["name"])
domain_list = libvirtUtils.get_domains_for_topology(topology_prefix)
for domain in domain_list:
# remove reserved mac addresses for all domains in this topology
mac_address = libvirtUtils.get_management_interface_mac_for_domain(domain["name"])
libvirtUtils.release_management_ip_for_mac(mac_address)
logger.debug("undefine domain: " + domain["name"])
source_file = libvirtUtils.get_image_for_domain(domain["uuid"])
if libvirtUtils.undefine_domain(domain["uuid"]):
if source_file is not None:
osUtils.remove_instance(source_file)
topology = get_object_or_404(Topology, pk=topology_id)
osUtils.remove_instances_for_topology(topology_prefix)
osUtils.remove_cloud_init_tmp_dirs(topology_prefix)
topology.delete()
messages.info(request, 'Topology %s deleted' % topology.name)
return HttpResponseRedirect('/topologies/')
def delete_topology(request):
"""
DEPRECATED
:param request:
:return:
"""
logger.debug("---- delete_topology ----")
json_string = request.body
json_body = json.loads(json_string)
required_fields = set(['name'])
if not required_fields.issubset(json_body[0]):
logger.error("Invalid parameters in json body")
return HttpResponse(status=500)
topology_name = json_body[0]["name"]
try:
# get the topology by name
topology = Topology.objects.get(name=topology_name)
except ObjectDoesNotExist:
return apiUtils.return_json(False, "Topology is already deleted or does not exist")
try:
topology_prefix = "t%s_" % topology.id
if hasattr(configuration, "use_openvswitch") and configuration.use_openvswitch:
use_ovs = True
else:
use_ovs = False
network_list = libvirtUtils.get_networks_for_topology(topology_prefix)
for network in network_list:
logger.debug("undefining network: " + network["name"])
libvirtUtils.undefine_network(network["name"])
if use_ovs:
ovsUtils.delete_bridge(network["name"])
domain_list = libvirtUtils.get_domains_for_topology(topology_prefix)
for domain in domain_list:
logger.debug("undefining domain: " + domain["name"])
source_file = libvirtUtils.get_image_for_domain(domain["uuid"])
if libvirtUtils.undefine_domain(domain["uuid"]):
if source_file is not None:
osUtils.remove_instance(source_file)
# remove reserved mac addresses for all domains in this topology
mac_address = libvirtUtils.get_management_interface_mac_for_domain(domain["name"])
libvirtUtils.release_management_ip_for_mac(mac_address)
topology.delete()
return apiUtils.return_json(True, "Topology deleted!")
except Exception as e:
logger.error(str(e))
return HttpResponse(status=500)
def delete(request, topology_id):
logger.debug('---- topology delete ----')
topology_prefix = "t%s_" % topology_id
topology = get_object_or_404(Topology, pk=topology_id)
if configuration.deployment_backend == "kvm":
if hasattr(configuration,
"use_openvswitch") and configuration.use_openvswitch:
use_ovs = True
else:
use_ovs = False
network_list = libvirtUtils.get_networks_for_topology(topology_prefix)
for network in network_list:
logger.debug("undefine network: " + network["name"])
libvirtUtils.undefine_network(network["name"])
if use_ovs:
ovsUtils.delete_bridge(network["name"])
domain_list = libvirtUtils.get_domains_for_topology(topology_prefix)
for domain in domain_list:
# remove reserved mac addresses for all domains in this topology
mac_address = libvirtUtils.get_management_interface_mac_for_domain(
domain["name"])
libvirtUtils.release_management_ip_for_mac(mac_address)
logger.debug("undefine domain: " + domain["name"])
source_file = libvirtUtils.get_image_for_domain(domain["uuid"])
if libvirtUtils.undefine_domain(domain["uuid"]):
if source_file is not None:
osUtils.remove_instance(source_file)
osUtils.remove_instances_for_topology(topology_prefix)
osUtils.remove_cloud_init_tmp_dirs(topology_prefix)
elif configuration.deployment_backend == "openstack":
stack_name = topology.name.replace(' ', '_')
if openstackUtils.connect_to_openstack():
logger.debug(openstackUtils.delete_stack(stack_name))
topology.delete()
messages.info(request, 'Topology %s deleted' % topology.name)
return HttpResponseRedirect('/topologies/')
def inline_deploy_topology(config):
"""
takes the topology configuration object and deploys to the appropriate hypervisor
:param config: output of the wistarUtils.
:return:
"""
if configuration.deployment_backend != 'kvm':
raise WistarException(
'Cannot deploy to KVM configured deployment backend is %s' %
configuration.deployment_backend)
is_ovs = False
is_linux = osUtils.check_is_linux()
is_ubuntu = osUtils.check_is_ubuntu()
if hasattr(configuration,
"use_openvswitch") and configuration.use_openvswitch:
is_ovs = True
# only create networks on Linux/KVM
logger.debug("Checking if we should create networks first!")
if is_linux:
for network in config["networks"]:
network_xml_path = "ajax/kvm/network.xml"
# Do we need openvswitch here?
if is_ovs:
# set the network_xml_path to point to a network configuration that defines the ovs type here
network_xml_path = "ajax/kvm/network_ovs.xml"
if not ovsUtils.create_bridge(network["name"]):
err = "Could not create ovs bridge"
logger.error(err)
raise Exception(err)
try:
if not libvirtUtils.network_exists(network["name"]):
logger.debug("Rendering networkXml for: %s" %
network["name"])
network_xml = render_to_string(network_xml_path,
{'network': network})
logger.debug(network_xml)
libvirtUtils.define_network_from_xml(network_xml)
time.sleep(.5)
logger.debug("Starting network")
libvirtUtils.start_network(network["name"])
except Exception as e:
raise Exception(str(e))
# are we on linux? are we on Ubuntu linux? set kvm emulator accordingly
vm_env = dict()
vm_env["emulator"] = "/usr/libexec/qemu-kvm"
vm_env["pcType"] = "rhel6.5.0"
# possible values for 'cache' are 'none' (default) and 'writethrough'. Use writethrough if you want to
# mount the instances directory on a glusterFs or tmpfs volume. This might make sense if you have tons of RAM
# and want to alleviate IO issues. If in doubt, leave it as 'none'
vm_env["cache"] = configuration.filesystem_cache_mode
vm_env["io"] = configuration.filesystem_io_mode
if is_linux and is_ubuntu:
vm_env["emulator"] = "/usr/bin/kvm-spice"
vm_env["pcType"] = "pc"
# by default, we use kvm as the hypervisor
domain_xml_path = "ajax/kvm/"
if not is_linux:
# if we're not on Linux, then let's try to use vbox instead
domain_xml_path = "ajax/vbox/"
for device in config["devices"]:
domain_exists = False
try:
if libvirtUtils.domain_exists(device['name']):
domain_exists = True
device_domain = libvirtUtils.get_domain_by_name(device['name'])
device['domain_uuid'] = device_domain.UUIDString()
else:
device['domain_uuid'] = ''
# if not libvirtUtils.domain_exists(device["name"]):
logger.debug("Rendering deviceXml for: %s" % device["name"])
configuration_file = device["configurationFile"]
logger.debug("using config file: " + configuration_file)
logger.debug(device)
image = Image.objects.get(pk=device["imageId"])
image_base_path = settings.MEDIA_ROOT + "/" + image.filePath.url
instance_path = osUtils.get_instance_path_from_image(
image_base_path, device["name"])
secondary_disk = ""
tertiary_disk = ""
if not osUtils.check_path(instance_path):
if device["resizeImage"] > 0:
logger.debug('resizing image')
if not osUtils.create_thick_provision_instance(
image_base_path, device["name"],
device["resizeImage"]):
raise Exception(
"Could not resize image instance for image: " +
device["name"])
else:
if not osUtils.create_thin_provision_instance(
image_base_path, device["name"]):
raise Exception(
"Could not create image instance for image: " +
image_base_path)
if "type" in device["secondaryDiskParams"]:
secondary_disk = wistarUtils.create_disk_instance(
device, device["secondaryDiskParams"])
if "type" in device["tertiaryDiskParams"]:
tertiary_disk = wistarUtils.create_disk_instance(
device, device["tertiaryDiskParams"])
cloud_init_path = ''
if device["cloudInitSupport"]:
# grab the last interface
management_interface = device["managementInterface"]
# grab the prefix len from the management subnet which is in the form 192.168.122.0/24
if '/' in configuration.management_subnet:
management_prefix_len = configuration.management_subnet.split(
'/')[1]
else:
management_prefix_len = '24'
management_ip = device['ip'] + '/' + management_prefix_len
# domain_name, host_name, mgmt_ip, mgmt_interface
script_string = ""
script_param = ""
roles = list()
if 'roles' in device and type(device['roles']) is list:
roles = device['roles']
if device["configScriptId"] != 0:
logger.debug("Passing script data!")
script = osUtils.get_cloud_init_template(
device['configScriptId'])
script_param = device["configScriptParam"]
logger.debug("Creating cloud init path for linux image")
cloud_init_path = osUtils.create_cloud_init_img(
device["name"], device["label"], management_ip,
management_interface, device["password"], script,
script_param, roles)
logger.debug(cloud_init_path)
device_xml = render_to_string(
domain_xml_path + configuration_file, {
'device': device,
'instancePath': instance_path,
'vm_env': vm_env,
'cloud_init_path': cloud_init_path,
'secondary_disk_path': secondary_disk,
'tertiary_disk_path': tertiary_disk,
'use_ovs': is_ovs
})
logger.debug(device_xml)
libvirtUtils.define_domain_from_xml(device_xml)
if not domain_exists:
logger.debug("Reserving IP with dnsmasq")
management_mac = libvirtUtils.get_management_interface_mac_for_domain(
device["name"])
logger.debug('got management mac')
logger.debug(management_mac)
libvirtUtils.reserve_management_ip_for_mac(
management_mac, device["ip"], device["name"])
logger.debug('management ip is reserved for mac')
except Exception as ex:
logger.warn("Raising exception")
logger.error(ex)
logger.error(traceback.format_exc())
raise Exception(str(ex))