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Commit dbc16120 authored by Łukasz Nowak's avatar Łukasz Nowak
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software/kvm: Drop obsoleted nbd functionality

parent e3a67b5a
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Showing with 17 additions and 469 deletions
software/kvm/README.rst
View file @ dbc16120
......@@ -4,7 +4,7 @@ kvm
Introduction
------------
This software release is used to deploy KVM and NBD instances.
This software release is used to deploy KVM.
For extensive parameters definition, please look at parameter-input-schema.json.
......@@ -24,7 +24,6 @@ to be accessible from IPv4::
software_release=kvm,
partition_reference="My awesome KVM",
partition_parameter_kw={
"nbd-host":"ubuntu-1204.nbd.vifib.net",
}
)
......@@ -38,10 +37,6 @@ KVM instance parameters:
- frontend-instance-guid
- frontend-addtional-instance-guid
- frontend-instance-name (default: VNC Frontend)
- nbd-port (default: 1024)
- nbd-host
- nbd2-port (default: 1024)
- nbd2-host
- ram-size (default: 4096)
- disk-size = (default: 40)
......
software/kvm/buildout.hash.cfg
View file @ dbc16120
......@@ -15,15 +15,15 @@
[template]
filename = instance.cfg.in
md5sum = ee1fe10d8db4d3c39e3a3f1b53d12883
md5sum = 07d0e2445a858a8cfe6821ac9f83ed3e
[template-kvm]
filename = instance-kvm.cfg.jinja2
md5sum = 9916c160b1c9711145d7e10506a9fca8
md5sum = fd774f38347abde5dfd677e16762af2b
[template-kvm-cluster]
filename = instance-kvm-cluster.cfg.jinja2.in
md5sum = 6e6f6748ec466eb49a4f872aec7563fa
md5sum = 8ce14c5ae114dcfa6e9aff0511b218d4
[template-kvm-resilient]
filename = instance-kvm-resilient.cfg.jinja2
......@@ -45,10 +45,6 @@ md5sum = 34d1b7cc8ca62bfdfce759a1dfbbaccd
filename = template/kvm-export.sh.jinja2
md5sum = 64aa1ce8785f6b94aabd787fa3443082
[template-nbd]
filename = instance-nbd.cfg.jinja2
md5sum = e041e8011ad2ec7f104be173ef76f5e9
[template-nginx]
filename = template/nginx_conf.in
md5sum = 9ca886120a99befe25ca761ddc54753c
......@@ -59,7 +55,7 @@ md5sum = 6328f99728284847b8dd1146aadeae1b
[template-kvm-run]
filename = template/template-kvm-run.in
md5sum = f0190843e3979742fe9e29b8a607539f
md5sum = 497f5b78a360b994ab2ab607339003e0
[template-kvm-controller]
filename = template/kvm-controller-run.in
......
software/kvm/instance-kvm-cluster-input-schema.json
View file @ dbc16120
......@@ -354,20 +354,6 @@
"vmxnet3"
]
},
"nbd-host": {
"title": "NBD hostname or IP",
"description": "hostname (or IP) of the NBD server containing the boot image.",
"type": "string",
"format": "internet-address"
},
"nbd-port": {
"title": "NBD port",
"description": "Port of the NBD server containing the boot image.",
"type": "integer",
"default": 1024,
"minimum": 1,
"maximum": 65535
},
"virtual-hard-drive-url": {
"title": "Existing disk image URL",
"description": "If specified, will download an existing disk image (qcow2, raw, ...), and will use it as main virtual hard drive. Can be used to download and use an already installed and customized virtual hard drive.",
......
software/kvm/instance-kvm-cluster.cfg.jinja2.in
View file @ dbc16120
......@@ -75,8 +75,6 @@ config-name = {{ instance_name }}
{% if slapparameter_dict.get('authorized-keys', []) -%}
config-authorized-key = {{ dumps(slapparameter_dict.get('authorized-keys') | join('\n')) }}
{% endif -%}
config-nbd-port = {{ dumps(kvm_parameter_dict.get('nbd-port', 1024)) }}
config-nbd2-port = {{ dumps(kvm_parameter_dict.get('nbd-port2', 1024)) }}
config-ram-size = {{ dumps(kvm_parameter_dict.get('ram-size', 4096)) }}
config-ram-max-size = {{ dumps(kvm_parameter_dict.get('ram-max-size', int(kvm_parameter_dict.get('ram-size', 4096)) + 512)) }}
config-enable-device-hotplug = {{ dumps(kvm_parameter_dict.get('enable-device-hotplug', False)) }}
......@@ -89,7 +87,6 @@ config-cpu-max-count = {{ dumps(kvm_parameter_dict.get('cpu-max-count', int(kvm_
config-network-adapter = {{ dumps(kvm_parameter_dict.get('network-adapter', 'virtio-net-pci')) }}
{{ setconfig('numa', kvm_parameter_dict.get('numa', '')) }}
{{ setconfig('machine-options', kvm_parameter_dict.get('machine-options', '')) }}
{{ setconfig('nbd-host', kvm_parameter_dict.get('nbd-host', '')) }}
{{ setconfig('host2', kvm_parameter_dict.get('host2', '')) }}
config-auto-ballooning = {{ dumps(kvm_parameter_dict.get('auto-ballooning', True)) }}
......
software/kvm/instance-kvm-input-schema.json
View file @ dbc16120
......@@ -145,33 +145,6 @@
"vmxnet3"
]
},
"nbd-host": {
"title": "NBD hostname",
"description": "hostname (or IP) of the NBD server containing the boot image.",
"type": "string",
"format": "internet-address"
},
"nbd-port": {
"title": "NBD port",
"description": "Port of the NBD server containing the boot image.",
"type": "integer",
"default": 1024,
"minimum": 1,
"maximum": 65535
},
"nbd2-host": {
"title": "Second NBD hostname",
"description": "hostname (or IP) of the second NBD server (containing drivers for example).",
"type": "string",
"format": "internet-address"
},
"nbd2-port": {
"title": "Second NBD port",
"description": "Port of the second NBD server containing the boot image.",
"type": "integer",
"minimum": 1,
"maximum": 65535
},
"virtual-hard-drive-url": {
"title": "Existing disk image URL",
"description": "If specified, will download an existing disk image (qcow2, raw, ...), and will use it as main virtual hard drive. Can be used to download and use an already installed and customized virtual hard drive.",
......
software/kvm/instance-kvm-nbd-server-input-schema.json deleted 100644 → 0
View file @ e3a67b5a
{
"type": "object",
"$schema": "http://json-schema.org/draft-04/schema#",
"title": "Input Parameters For NDB Server",
"properties": {}
}
software/kvm/instance-kvm-nbd-server-output-schema.json deleted 100644 → 0
View file @ e3a67b5a
{
"$schema": "http://json-schema.org/draft-07/schema#",
"name": "Output Parameters",
"properties": {
"nbd_url": {
"title": "NBD server URL",
"description": "URL to be used to boot another VM. Requires IPv6. IPv6 should be used as \"NBD hostname\" and port as \"NBD port\"",
"type": "string",
"format": "uri"
},
"upload_url": {
"title": "Upload URL",
"description": "URL used to upload your VM image.",
"type": "string",
"format": "uri"
},
"upload_key": {
"title": "Upload key",
"description": "Key used to upload your VM image.",
"type": "string",
"format": "uri"
}
}
}
software/kvm/instance-kvm.cfg.jinja2
View file @ dbc16120
......@@ -415,10 +415,6 @@ boot-image-url-select-json-config = ${boot-image-url-select-json-config:output}
{% else %}
boot-image-url-select-json-config =
{% endif %}
nbd-host = ${slap-parameter:nbd-host}
nbd-port = ${slap-parameter:nbd-port}
nbd2-host = ${slap-parameter:nbd2-host}
nbd2-port = ${slap-parameter:nbd2-port}
tap-interface = {{ slap_configuration.get('tap-name', '') }}
tap-ipv6-addr = {{ slap_configuration.get('tap-ipv6-addr', '') }}
......@@ -1085,10 +1081,6 @@ frontend-additional-software-type = default
frontend-additional-software-url = http://git.erp5.org/gitweb/slapos.git/blob_plain/HEAD:/software/apache-frontend/software.cfg
frontend-additional-instance-guid =
frontend-additional-instance-name = VNC Real Frontend Additional
nbd-port = 1024
nbd-host =
nbd2-port = 1024
nbd2-host =
boot-image-url-list =
enable-device-hotplug = False
......
software/kvm/instance-nbd.cfg.jinja2 deleted 100644 → 0
View file @ e3a67b5a
#############################
#
# Instanciate nbdserver
#
#############################
[buildout]
parts =
nbd-promise
onetimeupload-promise
publish-connection-information
extends = {{ template_monitor }}
{% set ipv6 = slap_configuration['ipv6-random'] -%}
[rootdirectory]
recipe = slapos.cookbook:mkdirectory
bin = ${buildout:directory}/bin
etc = ${buildout:directory}/etc
srv = ${buildout:directory}/srv
log = ${buildout:directory}/log
[basedirectory]
recipe = slapos.cookbook:mkdirectory
services = ${rootdirectory:etc}/run
watched-services = ${rootdirectory:etc}/service
[nbd-instance]
recipe = slapos.cookbook:nbdserver
ip = {{ ipv6 }}
port = 1024
image-path = ${onetimeupload-instance:image-path}
qemu-path = {{ qemu_nbd_executable_location }}
shell-path = {{ dash_executable_location }}
# XXX TODO: Wait for the iso to be uploaded (execute_wait)
path = ${basedirectory:services}/nbdserver
[nbd-checker-bin]
recipe = slapos.recipe.template
inline =
#!/bin/sh
[ ! -f ${onetimeupload-instance:image-path} ] ||
${buildout:executable} -c 'import socket ; socket.create_connection(("${nbd-instance:ip}","${nbd-instance:port}")).close()'
output = ${rootdirectory:bin}/check-nbd-running.sh
[nbd-promise]
<= monitor-promise-base
promise = check_command_execute
name = nbd_promise.py
config-command = ${nbd-checker-bin:output}
[gen-passwd]
recipe = slapos.cookbook:generate.password
storage-path = ${rootdirectory:srv}/passwd
bytes = 24
[onetimeupload-instance]
recipe = slapos.cookbook:onetimeupload
ip = {{ ipv6 }}
port = {{ slapparameter_dict.get('otu-port', 8080) }}
image-path = ${rootdirectory:srv}/cdrom.iso
log-path = ${rootdirectory:log}/onetimeupload.log
shell-path = {{ dash_executable_location }}
onetimeupload-path = {{ onetimeupload_executable_location }}
path = ${basedirectory:watched-services}/onetimeupload
key = ${gen-passwd:passwd}
[onetimeupload-promise]
<= monitor-promise-base
promise = check_socket_listening
name = onetimeupload_promise.py
config-host = ${onetimeupload-instance:ip}
config-port = ${onetimeupload-instance:port}
[publish-connection-information]
recipe = slapos.cookbook:publish
nbd_hostname = ${nbd-instance:ip}
nbd_port = ${nbd-instance:port}
upload_url = http://[${onetimeupload-instance:ip}]:${onetimeupload-instance:port}
upload_key = ${onetimeupload-instance:key}
status_message = ${detect-if-cdrom-present:status}
[detect-if-cdrom-present]
recipe = slapos.recipe.build
init =
import os
options['status'] = (
"image already uploaded, you can't upload it again"
if os.path.isfile("${onetimeupload-instance:image-path}")
else "WARNING: no image yet, the NBD server doesn't work")
software/kvm/instance.cfg.in
View file @ dbc16120
......@@ -12,7 +12,6 @@ recipe = slapos.cookbook:switch-softwaretype
default = $${:kvm}
kvm-cluster = dynamic-template-kvm-cluster:output
kvm = dynamic-template-kvm:output
nbd = dynamic-template-nbd:output
kvm-resilient = dynamic-template-kvm-resilient:output
kvm-import = dynamic-template-kvm-import:output
......@@ -151,17 +150,3 @@ context =
key slapparameter_dict slap-configuration:configuration
raw zcat_binary ${gzip:location}/bin/zcat
raw gzip_binary ${gzip:location}/bin/gzip
[dynamic-template-nbd]
<= jinja2-template-base
url = ${template-nbd:location}/instance-nbd.cfg.jinja2
filename = template-nbd.cfg
context =
section slap_configuration slap-configuration
key slapparameter_dict slap-configuration:configuration
key eggs_directory buildout:eggs-directory
key develop_eggs_directory buildout:develop-eggs-directory
raw qemu_nbd_executable_location ${qemu:location}/bin/qemu-nbd
raw dash_executable_location ${dash:location}/bin/dash
raw onetimeupload_executable_location ${buildout:bin-directory}/onetimeupload
raw template_monitor ${monitor2-template:output}
software/kvm/software.cfg
View file @ dbc16120
......@@ -85,9 +85,6 @@ output = ${buildout:directory}/template.cfg
[template-kvm-export-script]
<= download-base
[template-nbd]
<= download-base
[template-nginx]
<= download-base
......
software/kvm/software.cfg.json
View file @ dbc16120
......@@ -25,13 +25,6 @@
"request": "instance-kvm-cluster-input-schema.json",
"response": "instance-kvm-output-schema.json",
"index": 2
},
"nbd": {
"title": "NBD Server",
"description": "Simple NBD server where you can upload one image. This is a one-time server. Create another server if you want to change the image.",
"request": "instance-kvm-nbd-server-input-schema.json",
"response": "instance-kvm-nbd-server-output-schema.json",
"index": 4
}
}
}
software/kvm/template/template-kvm-run.in
View file @ dbc16120
......@@ -23,10 +23,6 @@ disk_type = {{ repr(parameter_dict["disk-type"]) }}
network_adapter = {{ repr(parameter_dict["network-adapter"]) }}
socket_path = '{{ parameter_dict.get("socket-path") }}'
nbd_list = (('{{ parameter_dict.get("nbd-host") }}',
{{ parameter_dict.get("nbd-port") }}),
('{{ parameter_dict.get("nbd2-host") }}',
{{ parameter_dict.get("nbd2-port") }}))
default_cdrom_iso = '{{ parameter_dict.get("default-cdrom-iso") }}'
nat_rules = '{{ parameter_dict.get("nat-rules") }}'.strip()
......@@ -389,35 +385,18 @@ def handle_image(config, name):
else:
raise ValueError('%s not ready yet' % (name,))
# Try to connect to NBD server (and second nbd if defined).
# If not available, don't even specify it in qemu command line parameters.
# Reason: if qemu starts with unavailable NBD drive, it will just crash.
for nbd_ip, nbd_port in nbd_list:
if nbd_ip and nbd_port:
s = getSocketStatus(nbd_ip, nbd_port)
if s is None:
# NBD is not available : launch kvm without it
print('Warning : Nbd is not available.')
else:
# NBD is available
# We close the NBD socket else qemu won't be able to use it apparently
s.close()
kvm_argument_list.extend([
'-drive',
'file=nbd:[%s]:%s,media=cdrom' % (nbd_ip, nbd_port)])
else:
# Note: Do not get tempted to use virtio-scsi-pci, as it does not work with
# Debian installation CDs, rendering it uninstallable
if boot_image_url_select_json_config:
# Support boot-image-url-select
handle_image(boot_image_url_select_json_config, 'boot-image-url-select')
if boot_image_url_list_json_config:
# Support boot-image-url-list
handle_image(boot_image_url_list_json_config, 'boot-image-url-list')
# Always add by default the default image
kvm_argument_list.extend([
'-drive', 'file=%s,media=cdrom' % default_cdrom_iso
])
# Note: Do not get tempted to use virtio-scsi-pci, as it does not work with
# Debian installation CDs, rendering it uninstallable
if boot_image_url_select_json_config:
# Support boot-image-url-select
handle_image(boot_image_url_select_json_config, 'boot-image-url-select')
if boot_image_url_list_json_config:
# Support boot-image-url-list
handle_image(boot_image_url_list_json_config, 'boot-image-url-list')
# Always add by default the default image
kvm_argument_list.extend([
'-drive', 'file=%s,media=cdrom' % default_cdrom_iso
])
print('Starting KVM: \n %s' % ' '.join(kvm_argument_list))
......
software/kvm/test/test.py
View file @ dbc16120
......@@ -130,8 +130,6 @@ class KVMTestCase(InstanceTestCase):
if q.startswith('location') and '/qemu/' in q]
assert (len(qemu_location) == 1)
qemu_location = qemu_location[0].split('=')[1].strip()
cls.qemu_nbd = os.path.join(qemu_location, 'bin', 'qemu-nbd')
assert (os.path.exists(cls.qemu_nbd))
cls.qemu_img = os.path.join(qemu_location, 'bin', 'qemu-img')
assert (os.path.exists(cls.qemu_img))
......@@ -878,40 +876,6 @@ class TestAccessResilientAdditionalJson(
pass
class TestInstanceNbdServer(KVMTestCase):
__partition_reference__ = 'ins'
instance_max_retry = 5
@classmethod
def getInstanceSoftwareType(cls):
return 'nbd'
@classmethod
def getInstanceParameterDict(cls):
# port 8080 is used by testnode, use another one
return {
'otu-port': '8090'
}
def test(self):
connection_parameter_dict = self.computer_partition\
.getConnectionParameterDict()
result = requests.get(
connection_parameter_dict['upload_url'].strip(), verify=False)
self.assertEqual(
httplib.OK,
result.status_code
)
self.assertIn('<title>Upload new File</title>', result.text)
self.assertIn("WARNING", connection_parameter_dict['status_message'])
@skipUnlessKvm
class TestInstanceNbdServerJson(
KvmMixinJson, TestInstanceNbdServer):
pass
class HttpHandler(http.server.SimpleHTTPRequestHandler):
def log_message(self, *args):
if os.environ.get('SLAPOS_TEST_DEBUG'):
......@@ -1014,196 +978,6 @@ class FakeImageServerMixin(KvmMixin):
shutil.rmtree(cls.image_source_directory)
@skipUnlessKvm
class TestInstanceNbd(KVMTestCase):
__partition_reference__ = 'in'
kvm_instance_partition_reference = 'in0'
@classmethod
def startNbdServer(cls):
cls.nbd_directory = tempfile.mkdtemp()
img_1 = os.path.join(cls.nbd_directory, 'one.qcow')
img_2 = os.path.join(cls.nbd_directory, 'two.qcow')
subprocess.check_call([cls.qemu_img, "create", "-f", "qcow", img_1, "1M"])
subprocess.check_call([cls.qemu_img, "create", "-f", "qcow", img_2, "1M"])
nbd_list = [cls.qemu_nbd, '-r', '-t', '-e', '32767']
cls.nbd_1_port = findFreeTCPPort(cls.ipv6_address_pure)
cls.nbd_1 = subprocess.Popen(
nbd_list + [
'-b', cls.ipv6_address_pure, '-p', str(cls.nbd_1_port), img_1])
cls.nbd_1_uri = '[%s]:%s' % (cls.ipv6_address_pure, cls.nbd_1_port)
cls.nbd_2_port = findFreeTCPPort(cls.ipv6_address_pure)
cls.nbd_2 = subprocess.Popen(
nbd_list + [
'-b', cls.ipv6_address_pure, '-p', str(cls.nbd_2_port), img_2])
cls.nbd_2_uri = '[%s]:%s' % (cls.ipv6_address_pure, cls.nbd_2_port)
@classmethod
def stopNbdServer(cls):
cls.nbd_1.terminate()
cls.nbd_2.terminate()
shutil.rmtree(cls.nbd_directory)
@classmethod
def setUpClass(cls):
# we need qemu-nbd binary location
# it's to hard to put qemu in software/slapos-sr-testing
# so let's find it here
# let's find our software .installed.cfg
cls.ipv6_address_pure = cls._ipv6_address.split('/')[0]
cls.findQemuTools()
cls.startNbdServer()
super().setUpClass()
@classmethod
def tearDownClass(cls):
super().tearDownClass()
cls.stopNbdServer()
@classmethod
def getInstanceParameterDict(cls):
return {
"nbd-host": cls.ipv6_address_pure,
"nbd-port": cls.nbd_1_port
}
def test(self):
kvm_partition = os.path.join(
self.slap.instance_directory, self.kvm_instance_partition_reference)
self.assertEqual(
[f'nbd:{self.nbd_1_uri}', '${shared}/debian-${ver}-amd64-netinst.iso'],
self.getRunningImageList(kvm_partition)
)
@skipUnlessKvm
class TestInstanceNbdWithVirtualHardDriveUrl(
FakeImageServerMixin, TestInstanceNbd):
__partition_reference__ = 'inbvhdu'
kvm_instance_partition_reference = 'inbvhdu0'
@classmethod
def getInstanceParameterDict(cls):
return {
"nbd-host": cls.ipv6_address_pure,
"nbd-port": cls.nbd_1_port,
"virtual-hard-drive-url": cls.real_image,
"virtual-hard-drive-md5sum": cls.real_image_md5sum
}
def test(self):
kvm_partition = os.path.join(
self.slap.instance_directory, self.kvm_instance_partition_reference)
self.assertEqual(
[f'nbd:{self.nbd_1_uri}', '${shared}/debian-${ver}-amd64-netinst.iso'],
self.getRunningImageList(kvm_partition)
)
image_repository = os.path.join(
kvm_partition,
'srv', 'virtual-hard-drive-url-repository')
self.assertEqual(
[self.getInstanceParameterDict()['virtual-hard-drive-md5sum']],
os.listdir(image_repository)
)
destination_image = os.path.join(kvm_partition, 'srv', 'virtual.qcow2')
# compare result of qemu-img info of repository and the one
qemu_img_list = [self.qemu_img, 'info', '-U', '--output', 'json']
source_image_info_json = json.loads(subprocess.check_output(
qemu_img_list + [
os.path.join(self.image_source_directory, self.real_image_md5sum)]))
destination_image_info_json = json.loads(subprocess.check_output(
qemu_img_list + [destination_image]))
source_image_info_json.pop('filename')
destination_image_info_json.pop('filename')
# the best possible way to assure that provided image is used is by
# comparing the result of qemu-img info for both
self.assertEqual(
source_image_info_json,
destination_image_info_json
)
@skipUnlessKvm
class TestInstanceNbdWithBootImageUrlList(
FakeImageServerMixin, TestInstanceNbd):
__partition_reference__ = 'inbiul'
kvm_instance_partition_reference = 'inbiul0'
image_directory = 'boot-image-url-list-repository'
@classmethod
def getInstanceParameterDict(cls):
return {
"nbd-host": cls.ipv6_address_pure,
"nbd-port": cls.nbd_1_port,
"boot-image-url-list": f"{cls.fake_image}#{cls.fake_image_md5sum}"
}
def test(self):
kvm_partition = os.path.join(
self.slap.instance_directory, self.kvm_instance_partition_reference)
self.assertEqual(
[
f'nbd:{self.nbd_1_uri}',
f'${{inst}}/srv/{self.image_directory}/{self.fake_image_md5sum}',
'${shared}/debian-${ver}-amd64-netinst.iso',
],
self.getRunningImageList(kvm_partition)
)
@skipUnlessKvm
class TestInstanceNbdWithBootImageUrlSelect(
FakeImageServerMixin, TestInstanceNbd):
__partition_reference__ = 'inbius'
kvm_instance_partition_reference = 'inbius0'
image_directory = 'boot-image-url-select-repository'
@classmethod
def getInstanceParameterDict(cls):
return {
"nbd-host": cls.ipv6_address_pure,
"nbd-port": cls.nbd_1_port,
"boot-image-url-select": f'["{cls.fake_image}#{cls.fake_image_md5sum}"]'
}
def test(self):
kvm_partition = os.path.join(
self.slap.instance_directory, self.kvm_instance_partition_reference)
self.assertEqual(
[
f'nbd:{self.nbd_1_uri}',
f'${{inst}}/srv/{self.image_directory}/{self.fake_image_md5sum}',
'${shared}/debian-${ver}-amd64-netinst.iso',
],
self.getRunningImageList(kvm_partition)
)
@skipUnlessKvm
class TestInstanceNbdBoth(TestInstanceNbd):
__partition_reference__ = 'inb'
kvm_instance_partition_reference = 'inb0'
@classmethod
def getInstanceParameterDict(cls):
return {
"nbd-host": cls.ipv6_address_pure,
"nbd-port": cls.nbd_1_port,
"nbd2-host": cls.ipv6_address_pure,
"nbd2-port": cls.nbd_2_port
}
def test(self):
kvm_partition = os.path.join(
self.slap.instance_directory, self.kvm_instance_partition_reference)
self.assertEqual(
[f'nbd:{self.nbd_1_uri}', f'nbd:{self.nbd_2_uri}',
'${shared}/debian-${ver}-amd64-netinst.iso'],
self.getRunningImageList(kvm_partition)
)
@skipUnlessKvm
class TestVirtualHardDriveUrl(FakeImageServerMixin, KVMTestCase):
__partition_reference__ = 'vhdu'
......
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