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Code Issues Releases Wiki Activity

API for duplication a Node

Browse Source 
Support:
* VPCS
* Dynamips router
* Ethernet switch

Ref #1065
This commit is contained in:
Julien Duponchelle 2017-07-20 17:29:42 +02:00
parent 0449a5b4ee
commit 0854c04687
No known key found for this signature in database
GPG Key ID: CE8B29639E07F5E8
18 changed files with 382 additions and 32 deletions
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31
gns3server/compute/base_manager.py
View File

@ -256,6 +256,37 @@ class BaseManager:
project.add_node(node)
return node
@asyncio.coroutine
def duplicate_node(self, source_node_id, destination_node_id):
"""
Duplicate a node
:param source_node_id: Source node identifier
:param destination_node_id: Destination node identifier
:returns: New node instance
"""
source_node = self.get_node(source_node_id)
destination_node = self.get_node(destination_node_id)
# Some node don't have working dir like switch
if not hasattr(destination_node, "working_dir"):
return destination_node
destination_dir = destination_node.working_dir
try:
shutil.rmtree(destination_dir)
shutil.copytree(source_node.working_dir, destination_dir)
except OSError as e:
raise aiohttp.web.HTTPConflict(text="Can't duplicate node data: {}".format(e))
# We force a refresh of the name. This force the rewrite
# of some configuration files
node_name = destination_node.name
destination_node.name = node_name + "tmp"
destination_node.name = node_name
return destination_node
@asyncio.coroutine
def close_node(self, node_id):
"""

1
gns3server/compute/base_node.py
View File

@ -34,7 +34,6 @@ from ..ubridge.hypervisor import Hypervisor
from ..ubridge.ubridge_error import UbridgeError
from .nios.nio_udp import NIOUDP
from .error import NodeError
from ..config import Config
log = logging.getLogger(__name__)

45
gns3server/compute/dynamips/__init__.py
View File

@ -511,16 +511,12 @@ class Dynamips(BaseManager):
:param settings: VM settings
"""
module_workdir = vm.project.module_working_directory(self.module_name.lower())
default_startup_config_path = os.path.join(module_workdir, vm.id, "configs", "i{}_startup-config.cfg".format(vm.dynamips_id))
default_private_config_path = os.path.join(module_workdir, vm.id, "configs", "i{}_private-config.cfg".format(vm.dynamips_id))
startup_config_content = settings.get("startup_config_content")
if startup_config_content:
self._create_config(vm, default_startup_config_path, startup_config_content)
self._create_config(vm, vm.startup_config_path, startup_config_content)
private_config_content = settings.get("private_config_content")
if private_config_content:
self._create_config(vm, default_private_config_path, private_config_content)
self._create_config(vm, vm.private_config_path, private_config_content)
def _create_config(self, vm, path, content=None):
"""
@ -605,3 +601,40 @@ class Dynamips(BaseManager):
if was_auto_started:
yield from vm.stop()
return validated_idlepc
@asyncio.coroutine
def duplicate_node(self, source_node_id, destination_node_id):
"""
Duplicate a node
:param node_id: Node identifier
:returns: New node instance
"""
source_node = self.get_node(source_node_id)
destination_node = self.get_node(destination_node_id)
# Non router gears
if not hasattr(source_node, "startup_config_path"):
return (yield from super().duplicate_node(source_node_id, destination_node_id))
try:
with open(source_node.startup_config_path) as f:
startup_config = f.read()
except OSError:
startup_config = None
try:
with open(source_node.private_config_path) as f:
private_config = f.read()
except OSError:
private_config = None
yield from self.set_vm_configs(destination_node, {
"startup_config_content": startup_config,
"private_config_content": private_config
})
# Force refresh of the name in configuration files
new_name = destination_node.name
yield from destination_node.set_name(source_node.name)
yield from destination_node.set_name(new_name)
return destination_node

32
gns3server/compute/dynamips/nodes/router.py
View File

@ -1474,6 +1474,20 @@ class Router(BaseNode):
return self._slots
@property
def startup_config_path(self):
"""
:returns: Path of the startup config
"""
return os.path.join(self._working_directory, "configs", "i{}_startup-config.cfg".format(self._dynamips_id))
@property
def private_config_path(self):
"""
:returns: Path of the private config
"""
return os.path.join(self._working_directory, "configs", "i{}_private-config.cfg".format(self._dynamips_id))
@asyncio.coroutine
def set_name(self, new_name):
"""
@ -1483,28 +1497,26 @@ class Router(BaseNode):
"""
# change the hostname in the startup-config
startup_config_path = os.path.join(self._working_directory, "configs", "i{}_startup-config.cfg".format(self._dynamips_id))
if os.path.isfile(startup_config_path):
if os.path.isfile(self.startup_config_path):
try:
with open(startup_config_path, "r+", encoding="utf-8", errors="replace") as f:
with open(self.startup_config_path, "r+", encoding="utf-8", errors="replace") as f:
old_config = f.read()
new_config = re.sub(r"^hostname .+$", "hostname " + new_name, old_config, flags=re.MULTILINE)
f.seek(0)
f.write(new_config)
except OSError as e:
raise DynamipsError("Could not amend the configuration {}: {}".format(startup_config_path, e))
raise DynamipsError("Could not amend the configuration {}: {}".format(self.startup_config_path, e))
# change the hostname in the private-config
private_config_path = os.path.join(self._working_directory, "configs", "i{}_private-config.cfg".format(self._dynamips_id))
if os.path.isfile(private_config_path):
if os.path.isfile(self.private_config_path):
try:
with open(private_config_path, "r+", encoding="utf-8", errors="replace") as f:
with open(self.private_config_path, "r+", encoding="utf-8", errors="replace") as f:
old_config = f.read()
new_config = old_config.replace(self.name, new_name)
f.seek(0)
f.write(new_config)
except OSError as e:
raise DynamipsError("Could not amend the configuration {}: {}".format(private_config_path, e))
raise DynamipsError("Could not amend the configuration {}: {}".format(self.private_config_path, e))
yield from self._hypervisor.send('vm rename "{name}" "{new_name}"'.format(name=self._name, new_name=new_name))
log.info('Router "{name}" [{id}]: renamed to "{new_name}"'.format(name=self._name, id=self._id, new_name=new_name))
@ -1543,7 +1555,7 @@ class Router(BaseNode):
startup_config_base64, private_config_base64 = yield from self.extract_config()
if startup_config_base64:
startup_config = os.path.join("configs", "i{}_startup-config.cfg".format(self._dynamips_id))
startup_config = self.startup_config_path
try:
config = base64.b64decode(startup_config_base64).decode("utf-8", errors="replace")
config = "!\n" + config.replace("\r", "")
@ -1555,7 +1567,7 @@ class Router(BaseNode):
raise DynamipsError("Could not save the startup configuration {}: {}".format(config_path, e))
if private_config_base64 and base64.b64decode(private_config_base64) != b'\nkerberos password \nend\n':
private_config = os.path.join("configs", "i{}_private-config.cfg".format(self._dynamips_id))
private_config = self.private_config_path
try:
config = base64.b64decode(private_config_base64).decode("utf-8", errors="replace")
config_path = os.path.join(self._working_directory, private_config)

2
gns3server/compute/vpcs/vpcs_vm.py
View File

@ -173,7 +173,7 @@ class VPCSVM(BaseNode):
if self.script_file:
content = self.startup_script
content = content.replace(self._name, new_name)
escaped_name = re.escape(new_name)
escaped_name = new_name.replace('\\', '')
content = re.sub(r"^set pcname .+$", "set pcname " + escaped_name, content, flags=re.MULTILINE)
self.startup_script = content

10
gns3server/controller/node.py
View File

@ -106,6 +106,16 @@ class Node:
if self._symbol is None:
self.symbol = ":/symbols/computer.svg"
def is_always_running(self):
"""
:returns: Boolean True if the node is always running
like ethernet switch
"""
return self.node_type not in (
"qemu", "docker", "dynamips",
"vpcs", "vmware", "virtualbox",
"iou")
@property
def id(self):
return self._id

53
gns3server/controller/project.py
View File

@ -19,6 +19,7 @@ import re
import os
import json
import uuid
import copy
import shutil
import asyncio
import aiohttp
@ -367,6 +368,8 @@ class Project:
if base_name is None:
return None
base_name = re.sub(r"[ ]", "", base_name)
base_name = re.sub(r"[0-9]+$", "{0}", base_name)
if '{0}' in base_name or '{id}' in base_name:
# base name is a template, replace {0} or {id} by an unique identifier
for number in range(1, 1000000):
@ -834,7 +837,7 @@ class Project:
"""
for node in self._nodes.values():
# Some node type are always running we ignore them
if node.status != "stopped" and node.node_type in ("qemu", "docker", "dynamips", "vpcs", "vmware", "virtualbox", "iou"):
if node.status != "stopped" and not node.is_always_running():
return True
return False
@ -882,6 +885,54 @@ class Project:
pool.append(node.suspend)
yield from pool.join()
@asyncio.coroutine
def duplicate_node(self, node, x, y, z):
"""
Duplicate a node
:param node: Node instance
:param x: X position
:param y: Y position
:param z: Z position
:returns: New node
"""
if node.status != "stopped" and not node.is_always_running():
raise aiohttp.web.HTTPConflict(text="Can't duplicate node data while is running")
data = copy.deepcopy(node.__json__(topology_dump=True))
# Some properties like internal ID should not be duplicate
for unique_property in (
'node_id',
'name',
'compute_id',
'application_id',
'dynamips_id'):
data.pop(unique_property, None)
if 'properties' in data:
data['properties'].pop(unique_property, None)
node_type = data.pop('node_type')
data['x'] = x
data['y'] = y
data['z'] = z
new_node_uuid = str(uuid.uuid4())
new_node = yield from self.add_node(
node.compute,
node.name,
new_node_uuid,
node_type=node_type,
**data)
try:
yield from node.post("/duplicate", timeout=None, data={
"destination_node_id": new_node_uuid
})
except aiohttp.web.HTTPNotFound as e:
yield from self.delete_node(new_node_uuid)
raise aiohttp.web.HTTPConflict(text="You can't duplicate this node type")
except aiohttp.web.HTTPConflict as e:
yield from self.delete_node(new_node_uuid)
raise e
return new_node
def __json__(self):
return {
"name": self._name,

20
gns3server/handlers/api/compute/dynamips_vm_handler.py
View File

@ -447,3 +447,23 @@ class DynamipsVMHandler:
dynamips_manager = Dynamips.instance()
yield from dynamips_manager.write_image(request.match_info["filename"], request.content)
response.set_status(204)
@Route.post(
r"/projects/{project_id}/dynamips/nodes/{node_id}/duplicate",
parameters={
"project_id": "Project UUID",
"node_id": "Node UUID"
},
status_codes={
201: "Instance duplicated",
404: "Instance doesn't exist"
},
description="Duplicate a dynamips instance")
def duplicate(request, response):
new_node = yield from Dynamips.instance().duplicate_node(
request.match_info["node_id"],
request.json["destination_node_id"]
)
response.set_status(201)
response.json(new_node)

21
gns3server/handlers/api/compute/ethernet_switch_handler.py
View File

@ -20,7 +20,6 @@ import os
from gns3server.web.route import Route
from gns3server.schemas.node import NODE_CAPTURE_SCHEMA
from gns3server.schemas.nio import NIO_SCHEMA
from gns3server.compute.builtin import Builtin
from gns3server.compute.dynamips import Dynamips
from gns3server.schemas.ethernet_switch import (
@ -91,6 +90,26 @@ class EthernetSwitchHandler:
# node = builtin_manager.get_node(request.match_info["node_id"], project_id=request.match_info["project_id"])
response.json(node)
@Route.post(
r"/projects/{project_id}/ethernet_switch/nodes/{node_id}/duplicate",
parameters={
"project_id": "Project UUID",
"node_id": "Node UUID"
},
status_codes={
201: "Instance duplicated",
404: "Instance doesn't exist"
},
description="Duplicate an ethernet switch instance")
def duplicate(request, response):
new_node = yield from Dynamips.instance().duplicate_node(
request.match_info["node_id"],
request.json["destination_node_id"]
)
response.set_status(201)
response.json(new_node)
@Route.put(
r"/projects/{project_id}/ethernet_switch/nodes/{node_id}",
parameters={

21
gns3server/handlers/api/compute/vpcs_handler.py
View File

@ -30,7 +30,6 @@ from gns3server.schemas.vpcs import (
class VPCSHandler:
"""
API entry points for VPCS.
"""
@ -119,6 +118,26 @@ class VPCSHandler:
yield from VPCS.instance().delete_node(request.match_info["node_id"])
response.set_status(204)
@Route.post(
r"/projects/{project_id}/vpcs/nodes/{node_id}/duplicate",
parameters={
"project_id": "Project UUID",
"node_id": "Node UUID"
},
status_codes={
201: "Instance duplicated",
404: "Instance doesn't exist"
},
description="Duplicate a VPCS instance")
def duplicate(request, response):
new_node = yield from VPCS.instance().duplicate_node(
request.match_info["node_id"],
request.json["destination_node_id"]
)
response.set_status(201)
response.json(new_node)
@Route.post(
r"/projects/{project_id}/vpcs/nodes/{node_id}/start",
parameters={

29
gns3server/handlers/api/controller/node_handler.py
View File

@ -25,7 +25,8 @@ from gns3server.utils import force_unix_path
from gns3server.schemas.node import (
NODE_OBJECT_SCHEMA,
NODE_UPDATE_SCHEMA,
NODE_CREATE_SCHEMA
NODE_CREATE_SCHEMA,
NODE_DUPLICATE_SCHEMA
)
@ -180,6 +181,32 @@ class NodeHandler:
yield from project.start_all()
response.set_status(204)
@Route.post(
r"/projects/{project_id}/nodes/{node_id}/duplicate",
parameters={
"project_id": "Project UUID",
"node_id": "Node UUID"
},
status_codes={
201: "Instance duplicated",
400: "Invalid request",
404: "Instance doesn't exist"
},
description="Duplicate a node instance",
input=NODE_DUPLICATE_SCHEMA,
output=NODE_OBJECT_SCHEMA)
def duplicate(request, response):
project = yield from Controller.instance().get_loaded_project(request.match_info["project_id"])
node = project.get_node(request.match_info["node_id"])
new_node = yield from project.duplicate_node(
node,
request.json["x"],
request.json["y"],
request.json.get("z", 0))
response.json(new_node)
response.set_status(201)
@Route.post(
r"/projects/{project_id}/nodes/{node_id}/start",
parameters={

23
gns3server/schemas/node.py
View File

@ -237,3 +237,26 @@ NODE_OBJECT_SCHEMA = {
NODE_CREATE_SCHEMA = NODE_OBJECT_SCHEMA
NODE_UPDATE_SCHEMA = copy.deepcopy(NODE_OBJECT_SCHEMA)
del NODE_UPDATE_SCHEMA["required"]
NODE_DUPLICATE_SCHEMA = {
"$schema": "http://json-schema.org/draft-04/schema#",
"description": "Duplicate a node",
"type": "object",
"properties": {
"x": {
"description": "X position of the node",
"type": "integer"
},
"y": {
"description": "Y position of the node",
"type": "integer"
},
"z": {
"description": "Z position of the node",
"type": "integer"
}
},
"additionalProperties": False,
"required": ["x", "y"]
}

36
tests/compute/dynamips/test_dynamips_manager.py
View File

@ -26,6 +26,7 @@ import asyncio
from gns3server.compute.dynamips import Dynamips
from gns3server.compute.dynamips.dynamips_error import DynamipsError
from unittest.mock import patch
from tests.utils import asyncio_patch, AsyncioMagicMock
@pytest.fixture
@ -82,7 +83,7 @@ def test_release_dynamips_id(manager):
manager.release_dynamips_id(project_2, 0)
def test_project_closed(manager, project, loop):
def test_project_closed(manager, project, async_run):
manager._dynamips_ids[project.id] = set([1, 2, 3])
@ -90,7 +91,38 @@ def test_project_closed(manager, project, loop):
os.makedirs(project_dir)
open(os.path.join(project_dir, "test.ghost"), "w+").close()
loop.run_until_complete(asyncio.async(manager.project_closed(project)))
async_run(manager.project_closed(project))
assert not os.path.exists(os.path.join(project_dir, "test.ghost"))
assert project.id not in manager._dynamips_ids
def test_duplicate_node(manager, project, async_run):
"""
Duplicate dynamips do nothing it's manage outside the
filesystem
"""
with asyncio_patch('gns3server.compute.dynamips.nodes.c7200.C7200.create'):
source_node = async_run(manager.create_node(
'R1',
project.id,
str(uuid.uuid4()),
platform="c7200"
))
destination_node = async_run(manager.create_node(
'R2',
project.id,
str(uuid.uuid4()),
platform="c7200"
))
destination_node._hypervisor = AsyncioMagicMock()
with open(os.path.join(source_node.working_dir, 'c3600_i1_nvram'), 'w+') as f:
f.write("1")
with open(source_node.startup_config_path, 'w+') as f:
f.write('hostname R1\necho TEST')
async_run(manager.duplicate_node(source_node.id, destination_node.id))
assert not os.path.exists(os.path.join(destination_node.working_dir, 'c3600_i1_nvram'))
with open(destination_node.startup_config_path) as f:
content = f.read()
assert content == '!\nhostname R2\necho TEST'

24
tests/compute/test_manager.py
View File

@ -19,9 +19,11 @@ import uuid
import os
import pytest
from unittest.mock import patch
from tests.utils import AsyncioMagicMock, asyncio_patch
from gns3server.compute.vpcs import VPCS
from gns3server.compute.dynamips import Dynamips
from gns3server.compute.qemu import Qemu
from gns3server.compute.error import NodeError, ImageMissingError
from gns3server.utils import force_unix_path
@ -273,3 +275,25 @@ def test_delete_node(async_run, vpcs, project):
async_run(vpcs.delete_node(node_id))
mock_emit.assert_called_with("node.deleted", node)
assert node not in project.nodes
def test_duplicate_vpcs(async_run, vpcs, project):
source_node_id = str(uuid.uuid4())
source_node = async_run(vpcs.create_node("PC-1", project.id, source_node_id, console=2222))
with open(os.path.join(source_node.working_dir, "startup.vpc"), "w+") as f:
f.write("set pcname PC-1\nip dhcp\n")
destination_node_id = str(uuid.uuid4())
destination_node = async_run(vpcs.create_node("PC-2", project.id, destination_node_id, console=2223))
async_run(vpcs.duplicate_node(source_node_id, destination_node_id))
with open(os.path.join(destination_node.working_dir, "startup.vpc")) as f:
assert f.read() == "set pcname PC-2\nip dhcp\n"
def test_duplicate_ethernet_switch(async_run, project):
with asyncio_patch('gns3server.compute.dynamips.nodes.ethernet_switch.EthernetSwitch.create'):
dynamips_manager = Dynamips.instance()
source_node_id = str(uuid.uuid4())
source_node = async_run(dynamips_manager.create_node("SW-1", project.id, source_node_id, node_type='ethernet_switch'))
destination_node_id = str(uuid.uuid4())
destination_node = async_run(dynamips_manager.create_node("SW-2", project.id, destination_node_id, node_type='ethernet_switch'))
async_run(dynamips_manager.duplicate_node(source_node_id, destination_node_id))

2
tests/compute/vpcs/test_vpcs_vm.py
View File

@ -255,7 +255,7 @@ def test_update_startup_script_h(vm):
def test_update_startup_script_with_escaping_characters_in_name(vm):
vm.startup_script = "set pcname initial-name\n"
vm.name = "test\\"
assert vm.startup_script == "set pcname test\\{}".format(os.linesep)
assert vm.startup_script == "set pcname test{}".format(os.linesep)
def test_get_startup_script(vm):

23
tests/controller/test_project.py
View File

@ -597,6 +597,10 @@ def test_node_name(project, async_run):
assert node.name == "helloworld-1"
node = async_run(project.add_node(compute, "hello world-{0}", None, node_type="vpcs", properties={"startup_config": "test.cfg"}))
assert node.name == "helloworld-2"
node = async_run(project.add_node(compute, "VPCS-1", None, node_type="vpcs", properties={"startup_config": "test.cfg"}))
assert node.name == "VPCS-1"
node = async_run(project.add_node(compute, "VPCS-1", None, node_type="vpcs", properties={"startup_config": "test.cfg"}))
assert node.name == "VPCS-2"
def test_add_iou_node_and_check_if_gets_application_id(project, async_run):
@ -618,3 +622,22 @@ def test_add_iou_node_and_check_if_gets_application_id(project, async_run):
compute, "test", None, node_type="iou", application_id=333, properties={"startup_config": "test.cfg"}))
assert mocked_get_app_id.called
assert node.properties['application_id'] == 333
def test_duplicate_node(project, async_run):
compute = MagicMock()
compute.id = "local"
response = MagicMock()
response.json = {"console": 2048}
compute.post = AsyncioMagicMock(return_value=response)
original = async_run(project.add_node(
compute,
"test",
None,
node_type="vpcs",
properties={
"startup_config": "test.cfg"
}))
new_node = async_run(project.duplicate_node(original, 42, 10, 11))
assert new_node.x == 42

29
tests/handlers/api/compute/test_vpcs.py
View File

@ -16,6 +16,7 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import pytest
import uuid
import sys
import os
from tests.utils import asyncio_patch
@ -66,10 +67,10 @@ def test_vpcs_create_port(http_compute, project, free_console_port):
def test_vpcs_nio_create_udp(http_compute, vm):
with asyncio_patch("gns3server.compute.vpcs.vpcs_vm.VPCSVM.add_ubridge_udp_connection"):
response = http_compute.post("/projects/{project_id}/vpcs/nodes/{node_id}/adapters/0/ports/0/nio".format(project_id=vm["project_id"], node_id=vm["node_id"]), {"type": "nio_udp",
"lport": 4242,
"rport": 4343,
"rhost": "127.0.0.1"},
example=True)
"lport": 4242,
"rport": 4343,
"rhost": "127.0.0.1"},
example=True)
assert response.status == 201
assert response.route == "/projects/{project_id}/vpcs/nodes/{node_id}/adapters/{adapter_number:\d+}/ports/{port_number:\d+}/nio"
assert response.json["type"] == "nio_udp"
@ -92,9 +93,9 @@ def test_vpcs_nio_update_udp(http_compute, vm):
def test_vpcs_delete_nio(http_compute, vm):
with asyncio_patch("gns3server.compute.vpcs.vpcs_vm.VPCSVM._ubridge_send"):
http_compute.post("/projects/{project_id}/vpcs/nodes/{node_id}/adapters/0/ports/0/nio".format(project_id=vm["project_id"], node_id=vm["node_id"]), {"type": "nio_udp",
"lport": 4242,
"rport": 4343,
"rhost": "127.0.0.1"})
"lport": 4242,
"rport": 4343,
"rhost": "127.0.0.1"})
response = http_compute.delete("/projects/{project_id}/vpcs/nodes/{node_id}/adapters/0/ports/0/nio".format(project_id=vm["project_id"], node_id=vm["node_id"]), example=True)
assert response.status == 204, response.body.decode()
assert response.route == "/projects/{project_id}/vpcs/nodes/{node_id}/adapters/{adapter_number:\d+}/ports/{port_number:\d+}/nio"
@ -130,6 +131,20 @@ def test_vpcs_delete(http_compute, vm):
assert response.status == 204
def test_vpcs_duplicate(http_compute, vm):
with asyncio_patch("gns3server.compute.vpcs.VPCS.duplicate_node", return_value=True) as mock:
response = http_compute.post(
"/projects/{project_id}/vpcs/nodes/{node_id}/duplicate".format(
project_id=vm["project_id"],
node_id=vm["node_id"]),
body={
"destination_node_id": str(uuid.uuid4())
},
example=True)
assert mock.called
assert response.status == 201
def test_vpcs_update(http_compute, vm, tmpdir, free_console_port):
response = http_compute.put("/projects/{project_id}/vpcs/nodes/{node_id}".format(project_id=vm["project_id"], node_id=vm["node_id"]), {"name": "test",
"console": free_console_port,

12
tests/handlers/api/controller/test_node.py
View File

@ -195,6 +195,18 @@ def test_reload_node(http_controller, tmpdir, project, compute, node):
assert response.json == node.__json__()
def test_duplicate_node(http_controller, tmpdir, project, compute, node):
response = MagicMock()
response.json({"console": 2035})
compute.post = AsyncioMagicMock(return_value=response)
response = http_controller.post("/projects/{}/nodes/{}/duplicate".format(
project.id, node.id),
{"x": 10, "y": 5, "z": 0},
example=True)
assert response.status == 201, response.body.decode()
def test_delete_node(http_controller, tmpdir, project, compute, node):
response = MagicMock()
compute.post = AsyncioMagicMock()