fnux
/
uncloud
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Shutdown Source VM (PAUSED) on successfull migration + blackened all .py files

This commit is contained in:
ahmadbilalkhalid 2019-12-30 14:35:07 +05:00
parent 29e938dc74
commit 9bdf4d2180
31 changed files with 1307 additions and 638 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
setup.py
View File

@ -7,41 +7,48 @@ with open("README.md", "r") as fh:
try: try:
import ucloud.version import ucloud.version
version = ucloud.version.VERSION version = ucloud.version.VERSION
except: except:
import subprocess import subprocess
c = subprocess.check_output(['git', 'describe'])
c = subprocess.check_output(["git", "describe"])
version = c.decode("utf-8").strip() version = c.decode("utf-8").strip()
setup(name='ucloud', setup(
version=version, name="ucloud",
description='All ucloud server components.', version=version,
url='https://code.ungleich.ch/ucloud/ucloud', description="All ucloud server components.",
long_description=long_description, url="https://code.ungleich.ch/ucloud/ucloud",
long_description_content_type='text/markdown', long_description=long_description,
classifiers=[ long_description_content_type="text/markdown",
'Development Status :: 3 - Alpha', classifiers=[
'License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)', "Development Status :: 3 - Alpha",
'Programming Language :: Python :: 3' "License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)",
], "Programming Language :: Python :: 3",
author='ungleich', ],
author_email='technik@ungleich.ch', author="ungleich",
packages=find_packages(), author_email="technik@ungleich.ch",
install_requires=[ packages=find_packages(),
'requests', install_requires=[
'Flask>=1.1.1', "requests",
'flask-restful', "Flask>=1.1.1",
'bitmath', "flask-restful",
'pyotp', "bitmath",
'sshtunnel', "pyotp",
'sphinx', "sshtunnel",
'pynetbox', "sphinx",
'colorama', "pynetbox",
'sphinx-rtd-theme', "colorama",
'etcd3 @ https://github.com/kragniz/python-etcd3/tarball/master#egg=etcd3', "sphinx-rtd-theme",
'werkzeug', 'marshmallow' "etcd3 @ https://github.com/kragniz/python-etcd3/tarball/master#egg=etcd3",
], "werkzeug",
scripts=['scripts/ucloud'], "marshmallow",
data_files=[(os.path.expanduser('~/ucloud/'), ['conf/ucloud.conf'])], ],
zip_safe=False) scripts=["scripts/ucloud"],
data_files=[
(os.path.expanduser("~/ucloud/"), ["conf/ucloud.conf"])
],
zip_safe=False,
)

16
ucloud/api/common_fields.py
View File

@ -20,12 +20,16 @@ class Field:
def is_valid(self): def is_valid(self):
if self.value == KeyError: if self.value == KeyError:
self.add_error("'{}' field is a required field".format(self.name)) self.add_error(
"'{}' field is a required field".format(self.name)
)
else: else:
if isinstance(self.value, Optional): if isinstance(self.value, Optional):
pass pass
elif not isinstance(self.value, self.type): elif not isinstance(self.value, self.type):
self.add_error("Incorrect Type for '{}' field".format(self.name)) self.add_error(
"Incorrect Type for '{}' field".format(self.name)
)
else: else:
self.validation() self.validation()
@ -49,6 +53,10 @@ class VmUUIDField(Field):
self.validation = self.vm_uuid_validation self.validation = self.vm_uuid_validation
def vm_uuid_validation(self): def vm_uuid_validation(self):
r = shared.etcd_client.get(os.path.join(settings['etcd']['vm_prefix'], self.uuid)) r = shared.etcd_client.get(
os.path.join(settings["etcd"]["vm_prefix"], self.uuid)
)
if not r: if not r:
self.add_error("VM with uuid {} does not exists".format(self.uuid)) self.add_error(
"VM with uuid {} does not exists".format(self.uuid)
)

5
ucloud/api/create_image_store.py
View File

@ -14,4 +14,7 @@ data = {
"attributes": {"list": [], "key": [], "pool": "images"}, "attributes": {"list": [], "key": [], "pool": "images"},
} }
shared.etcd_client.put(os.path.join(settings['etcd']['image_store_prefix'], uuid4().hex), json.dumps(data)) shared.etcd_client.put(
os.path.join(settings["etcd"]["image_store_prefix"], uuid4().hex),
json.dumps(data),
)

44
ucloud/api/helper.py
View File

@ -16,21 +16,23 @@ logger = logging.getLogger(__name__)
def check_otp(name, realm, token): def check_otp(name, realm, token):
try: try:
data = { data = {
"auth_name": settings['otp']['auth_name'], "auth_name": settings["otp"]["auth_name"],
"auth_token": TOTP(settings['otp']['auth_seed']).now(), "auth_token": TOTP(settings["otp"]["auth_seed"]).now(),
"auth_realm": settings['otp']['auth_realm'], "auth_realm": settings["otp"]["auth_realm"],
"name": name, "name": name,
"realm": realm, "realm": realm,
"token": token, "token": token,
} }
except binascii.Error as err: except binascii.Error as err:
logger.error( logger.error(
"Cannot compute OTP for seed: {}".format(settings['otp']['auth_seed']) "Cannot compute OTP for seed: {}".format(
settings["otp"]["auth_seed"]
)
) )
return 400 return 400
response = requests.post( response = requests.post(
settings['otp']['verification_controller_url'], json=data settings["otp"]["verification_controller_url"], json=data
) )
return response.status_code return response.status_code
@ -43,7 +45,8 @@ def resolve_vm_name(name, owner):
""" """
result = next( result = next(
filter( filter(
lambda vm: vm.value["owner"] == owner and vm.value["name"] == name, lambda vm: vm.value["owner"] == owner
and vm.value["name"] == name,
shared.vm_pool.vms, shared.vm_pool.vms,
), ),
None, None,
@ -80,18 +83,27 @@ def resolve_image_name(name, etcd_client):
""" """
store_name, image_name = store_name_and_image_name store_name, image_name = store_name_and_image_name
except Exception: except Exception:
raise ValueError("Image name not in correct format i.e {store_name}:{image_name}") raise ValueError(
"Image name not in correct format i.e {store_name}:{image_name}"
)
images = etcd_client.get_prefix(settings['etcd']['image_prefix'], value_in_json=True) images = etcd_client.get_prefix(
settings["etcd"]["image_prefix"], value_in_json=True
)
# Try to find image with name == image_name and store_name == store_name # Try to find image with name == image_name and store_name == store_name
try: try:
image = next(filter(lambda im: im.value['name'] == image_name image = next(
and im.value['store_name'] == store_name, images)) filter(
lambda im: im.value["name"] == image_name
and im.value["store_name"] == store_name,
images,
)
)
except StopIteration: except StopIteration:
raise KeyError("No image with name {} found.".format(name)) raise KeyError("No image with name {} found.".format(name))
else: else:
image_uuid = image.key.split('/')[-1] image_uuid = image.key.split("/")[-1]
return image_uuid return image_uuid
@ -100,7 +112,9 @@ def random_bytes(num=6):
return [random.randrange(256) for _ in range(num)] return [random.randrange(256) for _ in range(num)]
def generate_mac(uaa=False, multicast=False, oui=None, separator=':', byte_fmt='%02x'): def generate_mac(
uaa=False, multicast=False, oui=None, separator=":", byte_fmt="%02x"
):
mac = random_bytes() mac = random_bytes()
if oui: if oui:
if type(oui) == str: if type(oui) == str:
@ -131,7 +145,9 @@ def get_ip_addr(mac_address, device):
and is connected/neighbor of arg:device and is connected/neighbor of arg:device
""" """
try: try:
output = sp.check_output(['ip', '-6', 'neigh', 'show', 'dev', device], stderr=sp.PIPE) output = sp.check_output(
["ip", "-6", "neigh", "show", "dev", device], stderr=sp.PIPE
)
except sp.CalledProcessError: except sp.CalledProcessError:
return None return None
else: else:
@ -160,7 +176,7 @@ def mac2ipv6(mac, prefix):
# format output # format output
ipv6_parts = [str(0)] * 4 ipv6_parts = [str(0)] * 4
for i in range(0, len(parts), 2): for i in range(0, len(parts), 2):
ipv6_parts.append("".join(parts[i:i + 2])) ipv6_parts.append("".join(parts[i : i + 2]))
lower_part = ipaddress.IPv6Address(":".join(ipv6_parts)) lower_part = ipaddress.IPv6Address(":".join(ipv6_parts))
prefix = ipaddress.IPv6Address(prefix) prefix = ipaddress.IPv6Address(prefix)

178
ucloud/api/main.py
View File

@ -43,7 +43,7 @@ def handle_exception(e):
return e return e
# now you're handling non-HTTP exceptions only # now you're handling non-HTTP exceptions only
return {'message': 'Server Error'}, 500 return {"message": "Server Error"}, 500
class CreateVM(Resource): class CreateVM(Resource):
@ -55,7 +55,7 @@ class CreateVM(Resource):
validator = schemas.CreateVMSchema(data) validator = schemas.CreateVMSchema(data)
if validator.is_valid(): if validator.is_valid():
vm_uuid = uuid4().hex vm_uuid = uuid4().hex
vm_key = join_path(settings['etcd']['vm_prefix'], vm_uuid) vm_key = join_path(settings["etcd"]["vm_prefix"], vm_uuid)
specs = { specs = {
"cpu": validator.specs["cpu"], "cpu": validator.specs["cpu"],
"ram": validator.specs["ram"], "ram": validator.specs["ram"],
@ -63,8 +63,12 @@ class CreateVM(Resource):
"hdd": validator.specs["hdd"], "hdd": validator.specs["hdd"],
} }
macs = [generate_mac() for _ in range(len(data["network"]))] macs = [generate_mac() for _ in range(len(data["network"]))]
tap_ids = [counters.increment_etcd_counter(shared.etcd_client, "/v1/counter/tap") tap_ids = [
for _ in range(len(data["network"]))] counters.increment_etcd_counter(
shared.etcd_client, "/v1/counter/tap"
)
for _ in range(len(data["network"]))
]
vm_entry = { vm_entry = {
"name": data["vm_name"], "name": data["vm_name"],
"owner": data["name"], "owner": data["name"],
@ -77,14 +81,15 @@ class CreateVM(Resource):
"vnc_socket": "", "vnc_socket": "",
"network": list(zip(data["network"], macs, tap_ids)), "network": list(zip(data["network"], macs, tap_ids)),
"metadata": {"ssh-keys": []}, "metadata": {"ssh-keys": []},
"in_migration": False "in_migration": False,
} }
shared.etcd_client.put(vm_key, vm_entry, value_in_json=True) shared.etcd_client.put(vm_key, vm_entry, value_in_json=True)
# Create ScheduleVM Request # Create ScheduleVM Request
r = RequestEntry.from_scratch( r = RequestEntry.from_scratch(
type=RequestType.ScheduleVM, uuid=vm_uuid, type=RequestType.ScheduleVM,
request_prefix=settings['etcd']['request_prefix'] uuid=vm_uuid,
request_prefix=settings["etcd"]["request_prefix"],
) )
shared.request_pool.put(r) shared.request_pool.put(r)
@ -99,7 +104,7 @@ class VmStatus(Resource):
validator = schemas.VMStatusSchema(data) validator = schemas.VMStatusSchema(data)
if validator.is_valid(): if validator.is_valid():
vm = shared.vm_pool.get( vm = shared.vm_pool.get(
join_path(settings['etcd']['vm_prefix'], data["uuid"]) join_path(settings["etcd"]["vm_prefix"], data["uuid"])
) )
vm_value = vm.value.copy() vm_value = vm.value.copy()
vm_value["ip"] = [] vm_value["ip"] = []
@ -107,13 +112,15 @@ class VmStatus(Resource):
network_name, mac, tap = network_mac_and_tap network_name, mac, tap = network_mac_and_tap
network = shared.etcd_client.get( network = shared.etcd_client.get(
join_path( join_path(
settings['etcd']['network_prefix'], settings["etcd"]["network_prefix"],
data["name"], data["name"],
network_name, network_name,
), ),
value_in_json=True, value_in_json=True,
) )
ipv6_addr = network.value.get("ipv6").split("::")[0] + "::" ipv6_addr = (
network.value.get("ipv6").split("::")[0] + "::"
)
vm_value["ip"].append(mac2ipv6(mac, ipv6_addr)) vm_value["ip"].append(mac2ipv6(mac, ipv6_addr))
vm.value = vm_value vm.value = vm_value
return vm.value return vm.value
@ -128,7 +135,7 @@ class CreateImage(Resource):
validator = schemas.CreateImageSchema(data) validator = schemas.CreateImageSchema(data)
if validator.is_valid(): if validator.is_valid():
file_entry = shared.etcd_client.get( file_entry = shared.etcd_client.get(
join_path(settings['etcd']['file_prefix'], data["uuid"]) join_path(settings["etcd"]["file_prefix"], data["uuid"])
) )
file_entry_value = json.loads(file_entry.value) file_entry_value = json.loads(file_entry.value)
@ -141,7 +148,9 @@ class CreateImage(Resource):
"visibility": "public", "visibility": "public",
} }
shared.etcd_client.put( shared.etcd_client.put(
join_path(settings['etcd']['image_prefix'], data["uuid"]), join_path(
settings["etcd"]["image_prefix"], data["uuid"]
),
json.dumps(image_entry_json), json.dumps(image_entry_json),
) )
@ -153,11 +162,9 @@ class ListPublicImages(Resource):
@staticmethod @staticmethod
def get(): def get():
images = shared.etcd_client.get_prefix( images = shared.etcd_client.get_prefix(
settings['etcd']['image_prefix'], value_in_json=True settings["etcd"]["image_prefix"], value_in_json=True
) )
r = { r = {"images": []}
"images": []
}
for image in images: for image in images:
image_key = "{}:{}".format( image_key = "{}:{}".format(
image.value["store_name"], image.value["name"] image.value["store_name"], image.value["name"]
@ -176,7 +183,7 @@ class VMAction(Resource):
if validator.is_valid(): if validator.is_valid():
vm_entry = shared.vm_pool.get( vm_entry = shared.vm_pool.get(
join_path(settings['etcd']['vm_prefix'], data["uuid"]) join_path(settings["etcd"]["vm_prefix"], data["uuid"])
) )
action = data["action"] action = data["action"]
@ -184,13 +191,19 @@ class VMAction(Resource):
action = "schedule" action = "schedule"
if action == "delete" and vm_entry.hostname == "": if action == "delete" and vm_entry.hostname == "":
if shared.storage_handler.is_vm_image_exists(vm_entry.uuid): if shared.storage_handler.is_vm_image_exists(
r_status = shared.storage_handler.delete_vm_image(vm_entry.uuid) vm_entry.uuid
):
r_status = shared.storage_handler.delete_vm_image(
vm_entry.uuid
)
if r_status: if r_status:
shared.etcd_client.client.delete(vm_entry.key) shared.etcd_client.client.delete(vm_entry.key)
return {"message": "VM successfully deleted"} return {"message": "VM successfully deleted"}
else: else:
logger.error("Some Error Occurred while deleting VM") logger.error(
"Some Error Occurred while deleting VM"
)
return {"message": "VM deletion unsuccessfull"} return {"message": "VM deletion unsuccessfull"}
else: else:
shared.etcd_client.client.delete(vm_entry.key) shared.etcd_client.client.delete(vm_entry.key)
@ -200,10 +213,13 @@ class VMAction(Resource):
type="{}VM".format(action.title()), type="{}VM".format(action.title()),
uuid=data["uuid"], uuid=data["uuid"],
hostname=vm_entry.hostname, hostname=vm_entry.hostname,
request_prefix=settings['etcd']['request_prefix'] request_prefix=settings["etcd"]["request_prefix"],
) )
shared.request_pool.put(r) shared.request_pool.put(r)
return {"message": "VM {} Queued".format(action.title())}, 200 return (
{"message": "VM {} Queued".format(action.title())},
200,
)
else: else:
return validator.get_errors(), 400 return validator.get_errors(), 400
@ -216,15 +232,21 @@ class VMMigration(Resource):
if validator.is_valid(): if validator.is_valid():
vm = shared.vm_pool.get(data["uuid"]) vm = shared.vm_pool.get(data["uuid"])
r = RequestEntry.from_scratch(type=RequestType.InitVMMigration, r = RequestEntry.from_scratch(
uuid=vm.uuid, type=RequestType.InitVMMigration,
hostname=join_path( uuid=vm.uuid,
settings['etcd']['host_prefix'], validator.destination.value hostname=join_path(
), settings["etcd"]["host_prefix"],
request_prefix=settings['etcd']['request_prefix']) validator.destination.value,
),
request_prefix=settings["etcd"]["request_prefix"],
)
shared.request_pool.put(r) shared.request_pool.put(r)
return {"message": "VM Migration Initialization Queued"}, 200 return (
{"message": "VM Migration Initialization Queued"},
200,
)
else: else:
return validator.get_errors(), 400 return validator.get_errors(), 400
@ -237,10 +259,12 @@ class ListUserVM(Resource):
if validator.is_valid(): if validator.is_valid():
vms = shared.etcd_client.get_prefix( vms = shared.etcd_client.get_prefix(
settings['etcd']['vm_prefix'], value_in_json=True settings["etcd"]["vm_prefix"], value_in_json=True
) )
return_vms = [] return_vms = []
user_vms = filter(lambda v: v.value["owner"] == data["name"], vms) user_vms = filter(
lambda v: v.value["owner"] == data["name"], vms
)
for vm in user_vms: for vm in user_vms:
return_vms.append( return_vms.append(
{ {
@ -249,9 +273,7 @@ class ListUserVM(Resource):
"specs": vm.value["specs"], "specs": vm.value["specs"],
"status": vm.value["status"], "status": vm.value["status"],
"hostname": vm.value["hostname"], "hostname": vm.value["hostname"],
"vnc_socket": None "vnc_socket": vm.value.get("vnc_socket", None),
if vm.value.get("vnc_socket", None) is None
else vm.value["vnc_socket"],
} }
) )
if return_vms: if return_vms:
@ -270,11 +292,13 @@ class ListUserFiles(Resource):
if validator.is_valid(): if validator.is_valid():
files = shared.etcd_client.get_prefix( files = shared.etcd_client.get_prefix(
settings['etcd']['file_prefix'], value_in_json=True settings["etcd"]["file_prefix"], value_in_json=True
) )
return_files = [] return_files = []
user_files = list( user_files = list(
filter(lambda f: f.value["owner"] == data["name"], files) filter(
lambda f: f.value["owner"] == data["name"], files
)
) )
for file in user_files: for file in user_files:
return_files.append( return_files.append(
@ -294,14 +318,18 @@ class CreateHost(Resource):
data = request.json data = request.json
validator = schemas.CreateHostSchema(data) validator = schemas.CreateHostSchema(data)
if validator.is_valid(): if validator.is_valid():
host_key = join_path(settings['etcd']['host_prefix'], uuid4().hex) host_key = join_path(
settings["etcd"]["host_prefix"], uuid4().hex
)
host_entry = { host_entry = {
"specs": data["specs"], "specs": data["specs"],
"hostname": data["hostname"], "hostname": data["hostname"],
"status": "DEAD", "status": "DEAD",
"last_heartbeat": "", "last_heartbeat": "",
} }
shared.etcd_client.put(host_key, host_entry, value_in_json=True) shared.etcd_client.put(
host_key, host_entry, value_in_json=True
)
return {"message": "Host Created"}, 200 return {"message": "Host Created"}, 200
@ -333,7 +361,7 @@ class GetSSHKeys(Resource):
# {user_prefix}/{realm}/{name}/key/ # {user_prefix}/{realm}/{name}/key/
etcd_key = join_path( etcd_key = join_path(
settings['etcd']['user_prefix'], settings["etcd"]["user_prefix"],
data["realm"], data["realm"],
data["name"], data["name"],
"key", "key",
@ -343,25 +371,30 @@ class GetSSHKeys(Resource):
) )
keys = { keys = {
key.key.split("/")[-1]: key.value for key in etcd_entry key.key.split("/")[-1]: key.value
for key in etcd_entry
} }
return {"keys": keys} return {"keys": keys}
else: else:
# {user_prefix}/{realm}/{name}/key/{key_name} # {user_prefix}/{realm}/{name}/key/{key_name}
etcd_key = join_path( etcd_key = join_path(
settings['etcd']['user_prefix'], settings["etcd"]["user_prefix"],
data["realm"], data["realm"],
data["name"], data["name"],
"key", "key",
data["key_name"], data["key_name"],
) )
etcd_entry = shared.etcd_client.get(etcd_key, value_in_json=True) etcd_entry = shared.etcd_client.get(
etcd_key, value_in_json=True
)
if etcd_entry: if etcd_entry:
return { return {
"keys": { "keys": {
etcd_entry.key.split("/")[-1]: etcd_entry.value etcd_entry.key.split("/")[
-1
]: etcd_entry.value
} }
} }
else: else:
@ -379,13 +412,15 @@ class AddSSHKey(Resource):
# {user_prefix}/{realm}/{name}/key/{key_name} # {user_prefix}/{realm}/{name}/key/{key_name}
etcd_key = join_path( etcd_key = join_path(
settings['etcd']['user_prefix'], settings["etcd"]["user_prefix"],
data["realm"], data["realm"],
data["name"], data["name"],
"key", "key",
data["key_name"], data["key_name"],
) )
etcd_entry = shared.etcd_client.get(etcd_key, value_in_json=True) etcd_entry = shared.etcd_client.get(
etcd_key, value_in_json=True
)
if etcd_entry: if etcd_entry:
return { return {
"message": "Key with name '{}' already exists".format( "message": "Key with name '{}' already exists".format(
@ -394,7 +429,9 @@ class AddSSHKey(Resource):
} }
else: else:
# Key Not Found. It implies user' haven't added any key yet. # Key Not Found. It implies user' haven't added any key yet.
shared.etcd_client.put(etcd_key, data["key"], value_in_json=True) shared.etcd_client.put(
etcd_key, data["key"], value_in_json=True
)
return {"message": "Key added successfully"} return {"message": "Key added successfully"}
else: else:
return validator.get_errors(), 400 return validator.get_errors(), 400
@ -409,13 +446,15 @@ class RemoveSSHKey(Resource):
# {user_prefix}/{realm}/{name}/key/{key_name} # {user_prefix}/{realm}/{name}/key/{key_name}
etcd_key = join_path( etcd_key = join_path(
settings['etcd']['user_prefix'], settings["etcd"]["user_prefix"],
data["realm"], data["realm"],
data["name"], data["name"],
"key", "key",
data["key_name"], data["key_name"],
) )
etcd_entry = shared.etcd_client.get(etcd_key, value_in_json=True) etcd_entry = shared.etcd_client.get(
etcd_key, value_in_json=True
)
if etcd_entry: if etcd_entry:
shared.etcd_client.client.delete(etcd_key) shared.etcd_client.client.delete(etcd_key)
return {"message": "Key successfully removed."} return {"message": "Key successfully removed."}
@ -446,15 +485,17 @@ class CreateNetwork(Resource):
if validator.user.value: if validator.user.value:
try: try:
nb = pynetbox.api( nb = pynetbox.api(
url=settings['netbox']['url'], url=settings["netbox"]["url"],
token=settings['netbox']['token'], token=settings["netbox"]["token"],
) )
nb_prefix = nb.ipam.prefixes.get( nb_prefix = nb.ipam.prefixes.get(
prefix=settings['network']['prefix'] prefix=settings["network"]["prefix"]
) )
prefix = nb_prefix.available_prefixes.create( prefix = nb_prefix.available_prefixes.create(
data={ data={
"prefix_length": int(settings['network']['prefix_length']), "prefix_length": int(
settings["network"]["prefix_length"]
),
"description": '{}\'s network "{}"'.format( "description": '{}\'s network "{}"'.format(
data["name"], data["network_name"] data["name"], data["network_name"]
), ),
@ -463,18 +504,22 @@ class CreateNetwork(Resource):
) )
except Exception as err: except Exception as err:
app.logger.error(err) app.logger.error(err)
return {"message": "Error occured while creating network."} return {
"message": "Error occured while creating network."
}
else: else:
network_entry["ipv6"] = prefix["prefix"] network_entry["ipv6"] = prefix["prefix"]
else: else:
network_entry["ipv6"] = "fd00::/64" network_entry["ipv6"] = "fd00::/64"
network_key = join_path( network_key = join_path(
settings['etcd']['network_prefix'], settings["etcd"]["network_prefix"],
data['name'], data["name"],
data['network_name'], data["network_name"],
)
shared.etcd_client.put(
network_key, network_entry, value_in_json=True
) )
shared.etcd_client.put(network_key, network_entry, value_in_json=True)
return {"message": "Network successfully added."} return {"message": "Network successfully added."}
else: else:
return validator.get_errors(), 400 return validator.get_errors(), 400
@ -488,9 +533,11 @@ class ListUserNetwork(Resource):
if validator.is_valid(): if validator.is_valid():
prefix = join_path( prefix = join_path(
settings['etcd']['network_prefix'], data["name"] settings["etcd"]["network_prefix"], data["name"]
)
networks = shared.etcd_client.get_prefix(
prefix, value_in_json=True
) )
networks = shared.etcd_client.get_prefix(prefix, value_in_json=True)
user_networks = [] user_networks = []
for net in networks: for net in networks:
net.value["name"] = net.key.split("/")[-1] net.value["name"] = net.key.split("/")[-1]
@ -524,7 +571,11 @@ api.add_resource(CreateNetwork, "/network/create")
def main(): def main():
image_stores = list(shared.etcd_client.get_prefix(settings['etcd']['image_store_prefix'], value_in_json=True)) image_stores = list(
shared.etcd_client.get_prefix(
settings["etcd"]["image_store_prefix"], value_in_json=True
)
)
if len(image_stores) == 0: if len(image_stores) == 0:
data = { data = {
"is_public": True, "is_public": True,
@ -534,7 +585,12 @@ def main():
"attributes": {"list": [], "key": [], "pool": "images"}, "attributes": {"list": [], "key": [], "pool": "images"},
} }
shared.etcd_client.put(join_path(settings['etcd']['image_store_prefix'], uuid4().hex), json.dumps(data)) shared.etcd_client.put(
join_path(
settings["etcd"]["image_store_prefix"], uuid4().hex
),
json.dumps(data),
)
app.run(host="::", debug=True) app.run(host="::", debug=True)

275
ucloud/api/schemas.py
View File

@ -80,7 +80,12 @@ class OTPSchema(BaseSchema):
super().__init__(data=data, fields=_fields) super().__init__(data=data, fields=_fields)
def validation(self): def validation(self):
if check_otp(self.name.value, self.realm.value, self.token.value) != 200: if (
check_otp(
self.name.value, self.realm.value, self.token.value
)
!= 200
):
self.add_error("Wrong Credentials") self.add_error("Wrong Credentials")
@ -92,7 +97,9 @@ class CreateImageSchema(BaseSchema):
# Fields # Fields
self.uuid = Field("uuid", str, data.get("uuid", KeyError)) self.uuid = Field("uuid", str, data.get("uuid", KeyError))
self.name = Field("name", str, data.get("name", KeyError)) self.name = Field("name", str, data.get("name", KeyError))
self.image_store = Field("image_store", str, data.get("image_store", KeyError)) self.image_store = Field(
"image_store", str, data.get("image_store", KeyError)
)
# Validations # Validations
self.uuid.validation = self.file_uuid_validation self.uuid.validation = self.file_uuid_validation
@ -103,34 +110,52 @@ class CreateImageSchema(BaseSchema):
super().__init__(data, fields) super().__init__(data, fields)
def file_uuid_validation(self): def file_uuid_validation(self):
file_entry = shared.etcd_client.get(os.path.join(settings['etcd']['file_prefix'], self.uuid.value)) file_entry = shared.etcd_client.get(
os.path.join(
settings["etcd"]["file_prefix"], self.uuid.value
)
)
if file_entry is None: if file_entry is None:
self.add_error( self.add_error(
"Image File with uuid '{}' Not Found".format(self.uuid.value) "Image File with uuid '{}' Not Found".format(
self.uuid.value
)
) )
def image_store_name_validation(self): def image_store_name_validation(self):
image_stores = list(shared.etcd_client.get_prefix(settings['etcd']['image_store_prefix'])) image_stores = list(
shared.etcd_client.get_prefix(
settings["etcd"]["image_store_prefix"]
)
)
image_store = next( image_store = next(
filter( filter(
lambda s: json.loads(s.value)["name"] == self.image_store.value, lambda s: json.loads(s.value)["name"]
== self.image_store.value,
image_stores, image_stores,
), ),
None, None,
) )
if not image_store: if not image_store:
self.add_error("Store '{}' does not exists".format(self.image_store.value)) self.add_error(
"Store '{}' does not exists".format(
self.image_store.value
)
)
# Host Operations # Host Operations
class CreateHostSchema(OTPSchema): class CreateHostSchema(OTPSchema):
def __init__(self, data): def __init__(self, data):
self.parsed_specs = {} self.parsed_specs = {}
# Fields # Fields
self.specs = Field("specs", dict, data.get("specs", KeyError)) self.specs = Field("specs", dict, data.get("specs", KeyError))
self.hostname = Field("hostname", str, data.get("hostname", KeyError)) self.hostname = Field(
"hostname", str, data.get("hostname", KeyError)
)
# Validation # Validation
self.specs.validation = self.specs_validation self.specs.validation = self.specs_validation
@ -142,22 +167,28 @@ class CreateHostSchema(OTPSchema):
def specs_validation(self): def specs_validation(self):
ALLOWED_BASE = 10 ALLOWED_BASE = 10
_cpu = self.specs.value.get('cpu', KeyError) _cpu = self.specs.value.get("cpu", KeyError)
_ram = self.specs.value.get('ram', KeyError) _ram = self.specs.value.get("ram", KeyError)
_os_ssd = self.specs.value.get('os-ssd', KeyError) _os_ssd = self.specs.value.get("os-ssd", KeyError)
_hdd = self.specs.value.get('hdd', KeyError) _hdd = self.specs.value.get("hdd", KeyError)
if KeyError in [_cpu, _ram, _os_ssd, _hdd]: if KeyError in [_cpu, _ram, _os_ssd, _hdd]:
self.add_error("You must specify CPU, RAM and OS-SSD in your specs") self.add_error(
"You must specify CPU, RAM and OS-SSD in your specs"
)
return None return None
try: try:
parsed_ram = bitmath.parse_string_unsafe(_ram) parsed_ram = bitmath.parse_string_unsafe(_ram)
parsed_os_ssd = bitmath.parse_string_unsafe(_os_ssd) parsed_os_ssd = bitmath.parse_string_unsafe(_os_ssd)
if parsed_ram.base != ALLOWED_BASE: if parsed_ram.base != ALLOWED_BASE:
self.add_error("Your specified RAM is not in correct units") self.add_error(
"Your specified RAM is not in correct units"
)
if parsed_os_ssd.base != ALLOWED_BASE: if parsed_os_ssd.base != ALLOWED_BASE:
self.add_error("Your specified OS-SSD is not in correct units") self.add_error(
"Your specified OS-SSD is not in correct units"
)
if _cpu < 1: if _cpu < 1:
self.add_error("CPU must be atleast 1") self.add_error("CPU must be atleast 1")
@ -172,7 +203,9 @@ class CreateHostSchema(OTPSchema):
for hdd in _hdd: for hdd in _hdd:
_parsed_hdd = bitmath.parse_string_unsafe(hdd) _parsed_hdd = bitmath.parse_string_unsafe(hdd)
if _parsed_hdd.base != ALLOWED_BASE: if _parsed_hdd.base != ALLOWED_BASE:
self.add_error("Your specified HDD is not in correct units") self.add_error(
"Your specified HDD is not in correct units"
)
break break
else: else:
parsed_hdd.append(str(_parsed_hdd)) parsed_hdd.append(str(_parsed_hdd))
@ -183,15 +216,17 @@ class CreateHostSchema(OTPSchema):
else: else:
if self.get_errors(): if self.get_errors():
self.specs = { self.specs = {
'cpu': _cpu, "cpu": _cpu,
'ram': str(parsed_ram), "ram": str(parsed_ram),
'os-ssd': str(parsed_os_ssd), "os-ssd": str(parsed_os_ssd),
'hdd': parsed_hdd "hdd": parsed_hdd,
} }
def validation(self): def validation(self):
if self.realm.value != "ungleich-admin": if self.realm.value != "ungleich-admin":
self.add_error("Invalid Credentials/Insufficient Permission") self.add_error(
"Invalid Credentials/Insufficient Permission"
)
# VM Operations # VM Operations
@ -203,9 +238,13 @@ class CreateVMSchema(OTPSchema):
# Fields # Fields
self.specs = Field("specs", dict, data.get("specs", KeyError)) self.specs = Field("specs", dict, data.get("specs", KeyError))
self.vm_name = Field("vm_name", str, data.get("vm_name", KeyError)) self.vm_name = Field(
"vm_name", str, data.get("vm_name", KeyError)
)
self.image = Field("image", str, data.get("image", KeyError)) self.image = Field("image", str, data.get("image", KeyError))
self.network = Field("network", list, data.get("network", KeyError)) self.network = Field(
"network", list, data.get("network", KeyError)
)
# Validation # Validation
self.image.validation = self.image_validation self.image.validation = self.image_validation
@ -219,17 +258,25 @@ class CreateVMSchema(OTPSchema):
def image_validation(self): def image_validation(self):
try: try:
image_uuid = helper.resolve_image_name(self.image.value, shared.etcd_client) image_uuid = helper.resolve_image_name(
self.image.value, shared.etcd_client
)
except Exception as e: except Exception as e:
logger.exception("Cannot resolve image name = %s", self.image.value) logger.exception(
"Cannot resolve image name = %s", self.image.value
)
self.add_error(str(e)) self.add_error(str(e))
else: else:
self.image_uuid = image_uuid self.image_uuid = image_uuid
def vm_name_validation(self): def vm_name_validation(self):
if resolve_vm_name(name=self.vm_name.value, owner=self.name.value): if resolve_vm_name(
name=self.vm_name.value, owner=self.name.value
):
self.add_error( self.add_error(
'VM with same name "{}" already exists'.format(self.vm_name.value) 'VM with same name "{}" already exists'.format(
self.vm_name.value
)
) )
def network_validation(self): def network_validation(self):
@ -237,32 +284,46 @@ class CreateVMSchema(OTPSchema):
if _network: if _network:
for net in _network: for net in _network:
network = shared.etcd_client.get(os.path.join(settings['etcd']['network_prefix'], network = shared.etcd_client.get(
self.name.value, os.path.join(
net), value_in_json=True) settings["etcd"]["network_prefix"],
self.name.value,
net,
),
value_in_json=True,
)
if not network: if not network:
self.add_error("Network with name {} does not exists" \ self.add_error(
.format(net)) "Network with name {} does not exists".format(
net
)
)
def specs_validation(self): def specs_validation(self):
ALLOWED_BASE = 10 ALLOWED_BASE = 10
_cpu = self.specs.value.get('cpu', KeyError) _cpu = self.specs.value.get("cpu", KeyError)
_ram = self.specs.value.get('ram', KeyError) _ram = self.specs.value.get("ram", KeyError)
_os_ssd = self.specs.value.get('os-ssd', KeyError) _os_ssd = self.specs.value.get("os-ssd", KeyError)
_hdd = self.specs.value.get('hdd', KeyError) _hdd = self.specs.value.get("hdd", KeyError)
if KeyError in [_cpu, _ram, _os_ssd, _hdd]: if KeyError in [_cpu, _ram, _os_ssd, _hdd]:
self.add_error("You must specify CPU, RAM and OS-SSD in your specs") self.add_error(
"You must specify CPU, RAM and OS-SSD in your specs"
)
return None return None
try: try:
parsed_ram = bitmath.parse_string_unsafe(_ram) parsed_ram = bitmath.parse_string_unsafe(_ram)
parsed_os_ssd = bitmath.parse_string_unsafe(_os_ssd) parsed_os_ssd = bitmath.parse_string_unsafe(_os_ssd)
if parsed_ram.base != ALLOWED_BASE: if parsed_ram.base != ALLOWED_BASE:
self.add_error("Your specified RAM is not in correct units") self.add_error(
"Your specified RAM is not in correct units"
)
if parsed_os_ssd.base != ALLOWED_BASE: if parsed_os_ssd.base != ALLOWED_BASE:
self.add_error("Your specified OS-SSD is not in correct units") self.add_error(
"Your specified OS-SSD is not in correct units"
)
if _cpu < 1: if _cpu < 1:
self.add_error("CPU must be atleast 1") self.add_error("CPU must be atleast 1")
@ -277,7 +338,9 @@ class CreateVMSchema(OTPSchema):
for hdd in _hdd: for hdd in _hdd:
_parsed_hdd = bitmath.parse_string_unsafe(hdd) _parsed_hdd = bitmath.parse_string_unsafe(hdd)
if _parsed_hdd.base != ALLOWED_BASE: if _parsed_hdd.base != ALLOWED_BASE:
self.add_error("Your specified HDD is not in correct units") self.add_error(
"Your specified HDD is not in correct units"
)
break break
else: else:
parsed_hdd.append(str(_parsed_hdd)) parsed_hdd.append(str(_parsed_hdd))
@ -288,21 +351,24 @@ class CreateVMSchema(OTPSchema):
else: else:
if self.get_errors(): if self.get_errors():
self.specs = { self.specs = {
'cpu': _cpu, "cpu": _cpu,
'ram': str(parsed_ram), "ram": str(parsed_ram),
'os-ssd': str(parsed_os_ssd), "os-ssd": str(parsed_os_ssd),
'hdd': parsed_hdd "hdd": parsed_hdd,
} }
class VMStatusSchema(OTPSchema): class VMStatusSchema(OTPSchema):
def __init__(self, data): def __init__(self, data):
data["uuid"] = ( data["uuid"] = (
resolve_vm_name( resolve_vm_name(
name=data.get("vm_name", None), name=data.get("vm_name", None),
owner=(data.get("in_support_of", None) or data.get("name", None)), owner=(
) data.get("in_support_of", None)
or KeyError or data.get("name", None)
),
)
or KeyError
) )
self.uuid = VmUUIDField(data) self.uuid = VmUUIDField(data)
@ -313,7 +379,8 @@ class VMStatusSchema(OTPSchema):
def validation(self): def validation(self):
vm = shared.vm_pool.get(self.uuid.value) vm = shared.vm_pool.get(self.uuid.value)
if not ( if not (
vm.value["owner"] == self.name.value or self.realm.value == "ungleich-admin" vm.value["owner"] == self.name.value
or self.realm.value == "ungleich-admin"
): ):
self.add_error("Invalid User") self.add_error("Invalid User")
@ -321,11 +388,14 @@ class VMStatusSchema(OTPSchema):
class VmActionSchema(OTPSchema): class VmActionSchema(OTPSchema):
def __init__(self, data): def __init__(self, data):
data["uuid"] = ( data["uuid"] = (
resolve_vm_name( resolve_vm_name(
name=data.get("vm_name", None), name=data.get("vm_name", None),
owner=(data.get("in_support_of", None) or data.get("name", None)), owner=(
) data.get("in_support_of", None)
or KeyError or data.get("name", None)
),
)
or KeyError
) )
self.uuid = VmUUIDField(data) self.uuid = VmUUIDField(data)
self.action = Field("action", str, data.get("action", KeyError)) self.action = Field("action", str, data.get("action", KeyError))
@ -340,20 +410,23 @@ class VmActionSchema(OTPSchema):
allowed_actions = ["start", "stop", "delete"] allowed_actions = ["start", "stop", "delete"]
if self.action.value not in allowed_actions: if self.action.value not in allowed_actions:
self.add_error( self.add_error(
"Invalid Action. Allowed Actions are {}".format(allowed_actions) "Invalid Action. Allowed Actions are {}".format(
allowed_actions
)
) )
def validation(self): def validation(self):
vm = shared.vm_pool.get(self.uuid.value) vm = shared.vm_pool.get(self.uuid.value)
if not ( if not (
vm.value["owner"] == self.name.value or self.realm.value == "ungleich-admin" vm.value["owner"] == self.name.value
or self.realm.value == "ungleich-admin"
): ):
self.add_error("Invalid User") self.add_error("Invalid User")
if ( if (
self.action.value == "start" self.action.value == "start"
and vm.status == VMStatus.running and vm.status == VMStatus.running
and vm.hostname != "" and vm.hostname != ""
): ):
self.add_error("VM Already Running") self.add_error("VM Already Running")
@ -367,15 +440,20 @@ class VmActionSchema(OTPSchema):
class VmMigrationSchema(OTPSchema): class VmMigrationSchema(OTPSchema):
def __init__(self, data): def __init__(self, data):
data["uuid"] = ( data["uuid"] = (
resolve_vm_name( resolve_vm_name(
name=data.get("vm_name", None), name=data.get("vm_name", None),
owner=(data.get("in_support_of", None) or data.get("name", None)), owner=(
) data.get("in_support_of", None)
or KeyError or data.get("name", None)
),
)
or KeyError
) )
self.uuid = VmUUIDField(data) self.uuid = VmUUIDField(data)
self.destination = Field("destination", str, data.get("destination", KeyError)) self.destination = Field(
"destination", str, data.get("destination", KeyError)
)
self.destination.validation = self.destination_validation self.destination.validation = self.destination_validation
@ -384,9 +462,18 @@ class VmMigrationSchema(OTPSchema):
def destination_validation(self): def destination_validation(self):
hostname = self.destination.value hostname = self.destination.value
host = next(filter(lambda h: h.hostname == hostname, shared.host_pool.hosts), None) host = next(
filter(
lambda h: h.hostname == hostname, shared.host_pool.hosts
),
None,
)
if not host: if not host:
self.add_error("No Such Host ({}) exists".format(self.destination.value)) self.add_error(
"No Such Host ({}) exists".format(
self.destination.value
)
)
elif host.status != HostStatus.alive: elif host.status != HostStatus.alive:
self.add_error("Destination Host is dead") self.add_error("Destination Host is dead")
else: else:
@ -395,20 +482,27 @@ class VmMigrationSchema(OTPSchema):
def validation(self): def validation(self):
vm = shared.vm_pool.get(self.uuid.value) vm = shared.vm_pool.get(self.uuid.value)
if not ( if not (
vm.value["owner"] == self.name.value or self.realm.value == "ungleich-admin" vm.value["owner"] == self.name.value
or self.realm.value == "ungleich-admin"
): ):
self.add_error("Invalid User") self.add_error("Invalid User")
if vm.status != VMStatus.running: if vm.status != VMStatus.running:
self.add_error("Can't migrate non-running VM") self.add_error("Can't migrate non-running VM")
if vm.hostname == os.path.join(settings['etcd']['host_prefix'], self.destination.value): if vm.hostname == os.path.join(
self.add_error("Destination host couldn't be same as Source Host") settings["etcd"]["host_prefix"], self.destination.value
):
self.add_error(
"Destination host couldn't be same as Source Host"
)
class AddSSHSchema(OTPSchema): class AddSSHSchema(OTPSchema):
def __init__(self, data): def __init__(self, data):
self.key_name = Field("key_name", str, data.get("key_name", KeyError)) self.key_name = Field(
"key_name", str, data.get("key_name", KeyError)
)
self.key = Field("key", str, data.get("key_name", KeyError)) self.key = Field("key", str, data.get("key_name", KeyError))
fields = [self.key_name, self.key] fields = [self.key_name, self.key]
@ -417,7 +511,9 @@ class AddSSHSchema(OTPSchema):
class RemoveSSHSchema(OTPSchema): class RemoveSSHSchema(OTPSchema):
def __init__(self, data): def __init__(self, data):
self.key_name = Field("key_name", str, data.get("key_name", KeyError)) self.key_name = Field(
"key_name", str, data.get("key_name", KeyError)
)
fields = [self.key_name] fields = [self.key_name]
super().__init__(data=data, fields=fields) super().__init__(data=data, fields=fields)
@ -425,7 +521,9 @@ class RemoveSSHSchema(OTPSchema):
class GetSSHSchema(OTPSchema): class GetSSHSchema(OTPSchema):
def __init__(self, data): def __init__(self, data):
self.key_name = Field("key_name", str, data.get("key_name", None)) self.key_name = Field(
"key_name", str, data.get("key_name", None)
)
fields = [self.key_name] fields = [self.key_name]
super().__init__(data=data, fields=fields) super().__init__(data=data, fields=fields)
@ -433,7 +531,9 @@ class GetSSHSchema(OTPSchema):
class CreateNetwork(OTPSchema): class CreateNetwork(OTPSchema):
def __init__(self, data): def __init__(self, data):
self.network_name = Field("network_name", str, data.get("network_name", KeyError)) self.network_name = Field(
"network_name", str, data.get("network_name", KeyError)
)
self.type = Field("type", str, data.get("type", KeyError)) self.type = Field("type", str, data.get("type", KeyError))
self.user = Field("user", bool, bool(data.get("user", False))) self.user = Field("user", bool, bool(data.get("user", False)))
@ -444,15 +544,26 @@ class CreateNetwork(OTPSchema):
super().__init__(data, fields=fields) super().__init__(data, fields=fields)
def network_name_validation(self): def network_name_validation(self):
network = shared.etcd_client.get(os.path.join(settings['etcd']['network_prefix'], network = shared.etcd_client.get(
self.name.value, os.path.join(
self.network_name.value), settings["etcd"]["network_prefix"],
value_in_json=True) self.name.value,
self.network_name.value,
),
value_in_json=True,
)
if network: if network:
self.add_error("Network with name {} already exists" \ self.add_error(
.format(self.network_name.value)) "Network with name {} already exists".format(
self.network_name.value
)
)
def network_type_validation(self): def network_type_validation(self):
supported_network_types = ["vxlan"] supported_network_types = ["vxlan"]
if self.type.value not in supported_network_types: if self.type.value not in supported_network_types:
self.add_error("Unsupported Network Type. Supported network types are {}".format(supported_network_types)) self.add_error(
"Unsupported Network Type. Supported network types are {}".format(
supported_network_types
)
)

46
ucloud/common/etcd_wrapper.py
View File

@ -8,7 +8,7 @@ from functools import wraps
from . import logger from . import logger
PseudoEtcdMeta = namedtuple('PseudoEtcdMeta', ['key']) PseudoEtcdMeta = namedtuple("PseudoEtcdMeta", ["key"])
class EtcdEntry: class EtcdEntry:
@ -16,8 +16,8 @@ class EtcdEntry:
# value: str # value: str
def __init__(self, meta, value, value_in_json=False): def __init__(self, meta, value, value_in_json=False):
self.key = meta.key.decode('utf-8') self.key = meta.key.decode("utf-8")
self.value = value.decode('utf-8') self.value = value.decode("utf-8")
if value_in_json: if value_in_json:
self.value = json.loads(self.value) self.value = json.loads(self.value)
@ -29,11 +29,18 @@ def readable_errors(func):
try: try:
return func(*args, **kwargs) return func(*args, **kwargs)
except etcd3.exceptions.ConnectionFailedError as err: except etcd3.exceptions.ConnectionFailedError as err:
raise etcd3.exceptions.ConnectionFailedError('etcd connection failed.') from err raise etcd3.exceptions.ConnectionFailedError(
"etcd connection failed."
) from err
except etcd3.exceptions.ConnectionTimeoutError as err: except etcd3.exceptions.ConnectionTimeoutError as err:
raise etcd3.exceptions.ConnectionTimeoutError('etcd connection timeout.') from err raise etcd3.exceptions.ConnectionTimeoutError(
"etcd connection timeout."
) from err
except Exception: except Exception:
logger.exception('Some etcd error occured. See syslog for details.') logger.exception(
"Some etcd error occured. See syslog for details."
)
return wrapper return wrapper
@ -56,7 +63,7 @@ class Etcd3Wrapper:
_value = json.dumps(_value) _value = json.dumps(_value)
if not isinstance(_key, str): if not isinstance(_key, str):
_key = _key.decode('utf-8') _key = _key.decode("utf-8")
return self.client.put(_key, _value, **kwargs) return self.client.put(_key, _value, **kwargs)
@ -70,18 +77,25 @@ class Etcd3Wrapper:
@readable_errors @readable_errors
def watch_prefix(self, key, timeout=0, value_in_json=False): def watch_prefix(self, key, timeout=0, value_in_json=False):
timeout_event = EtcdEntry(PseudoEtcdMeta(key=b'TIMEOUT'), timeout_event = EtcdEntry(
value=str.encode(json.dumps({'status': 'TIMEOUT', PseudoEtcdMeta(key=b"TIMEOUT"),
'type': 'TIMEOUT'})), value=str.encode(
value_in_json=value_in_json) json.dumps({"status": "TIMEOUT", "type": "TIMEOUT"})
),
value_in_json=value_in_json,
)
event_queue = queue.Queue() event_queue = queue.Queue()
def add_event_to_queue(event): def add_event_to_queue(event):
if hasattr(event, 'events'): if hasattr(event, "events"):
for e in event.events: for e in event.events:
if e.value: if e.value:
event_queue.put(EtcdEntry(e, e.value, value_in_json=value_in_json)) event_queue.put(
EtcdEntry(
e, e.value, value_in_json=value_in_json
)
)
self.client.add_watch_prefix_callback(key, add_event_to_queue) self.client.add_watch_prefix_callback(key, add_event_to_queue)
@ -96,4 +110,8 @@ class Etcd3Wrapper:
class PsuedoEtcdEntry(EtcdEntry): class PsuedoEtcdEntry(EtcdEntry):
def __init__(self, key, value, value_in_json=False): def __init__(self, key, value, value_in_json=False):
super().__init__(PseudoEtcdMeta(key=key.encode('utf-8')), value, value_in_json=value_in_json) super().__init__(
PseudoEtcdMeta(key=key.encode("utf-8")),
value,
value_in_json=value_in_json,
)

4
ucloud/common/host.py
View File

@ -29,7 +29,9 @@ class HostEntry(SpecificEtcdEntryBase):
self.last_heartbeat = time.strftime("%Y-%m-%d %H:%M:%S") self.last_heartbeat = time.strftime("%Y-%m-%d %H:%M:%S")
def is_alive(self): def is_alive(self):
last_heartbeat = datetime.strptime(self.last_heartbeat, "%Y-%m-%d %H:%M:%S") last_heartbeat = datetime.strptime(
self.last_heartbeat, "%Y-%m-%d %H:%M:%S"
)
delta = datetime.now() - last_heartbeat delta = datetime.now() - last_heartbeat
if delta.total_seconds() > 60: if delta.total_seconds() > 60:
return False return False

12
ucloud/common/logging.py
View File

@ -7,21 +7,21 @@ class NoTracebackStreamHandler(logging.StreamHandler):
info, cache = record.exc_info, record.exc_text info, cache = record.exc_info, record.exc_text
record.exc_info, record.exc_text = None, None record.exc_info, record.exc_text = None, None
if record.levelname in ['WARNING', 'WARN']: if record.levelname in ["WARNING", "WARN"]:
color = colorama.Fore.LIGHTYELLOW_EX color = colorama.Fore.LIGHTYELLOW_EX
elif record.levelname == 'ERROR': elif record.levelname == "ERROR":
color = colorama.Fore.LIGHTRED_EX color = colorama.Fore.LIGHTRED_EX
elif record.levelname == 'INFO': elif record.levelname == "INFO":
color = colorama.Fore.LIGHTGREEN_EX color = colorama.Fore.LIGHTGREEN_EX
elif record.levelname == 'CRITICAL': elif record.levelname == "CRITICAL":
color = colorama.Fore.LIGHTCYAN_EX color = colorama.Fore.LIGHTCYAN_EX
else: else:
color = colorama.Fore.WHITE color = colorama.Fore.WHITE
try: try:
print(color, end='', flush=True) print(color, end="", flush=True)
super().handle(record) super().handle(record)
finally: finally:
record.exc_info = info record.exc_info = info
record.exc_text = cache record.exc_text = cache
print(colorama.Style.RESET_ALL, end='', flush=True) print(colorama.Style.RESET_ALL, end="", flush=True)

40
ucloud/common/network.py
View File

@ -11,7 +11,9 @@ def random_bytes(num=6):
return [random.randrange(256) for _ in range(num)] return [random.randrange(256) for _ in range(num)]
def generate_mac(uaa=False, multicast=False, oui=None, separator=':', byte_fmt='%02x'): def generate_mac(
uaa=False, multicast=False, oui=None, separator=":", byte_fmt="%02x"
):
mac = random_bytes() mac = random_bytes()
if oui: if oui:
if type(oui) == str: if type(oui) == str:
@ -30,35 +32,51 @@ def generate_mac(uaa=False, multicast=False, oui=None, separator=':', byte_fmt='
def create_dev(script, _id, dev, ip=None): def create_dev(script, _id, dev, ip=None):
command = ['sudo', '-p', 'Enter password to create network devices for vm: ', command = [
script, str(_id), dev] "sudo",
"-p",
"Enter password to create network devices for vm: ",
script,
str(_id),
dev,
]
if ip: if ip:
command.append(ip) command.append(ip)
try: try:
output = sp.check_output(command, stderr=sp.PIPE) output = sp.check_output(command, stderr=sp.PIPE)
except Exception: except Exception:
logger.exception('Creation of interface %s failed.', dev) logger.exception("Creation of interface %s failed.", dev)
return None return None
else: else:
return output.decode('utf-8').strip() return output.decode("utf-8").strip()
def delete_network_interface(iface): def delete_network_interface(iface):
try: try:
sp.check_output( sp.check_output(
[ [
'sudo', '-p', 'Enter password to remove {} network device: '.format(iface), "sudo",
'ip', 'link', 'del', iface "-p",
], stderr=sp.PIPE "Enter password to remove {} network device: ".format(
iface
),
"ip",
"link",
"del",
iface,
],
stderr=sp.PIPE,
) )
except Exception: except Exception:
logger.exception('Interface %s Deletion failed', iface) logger.exception("Interface %s Deletion failed", iface)
def find_free_port(): def find_free_port():
with closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as s: with closing(
socket.socket(socket.AF_INET, socket.SOCK_STREAM)
) as s:
try: try:
s.bind(('', 0)) s.bind(("", 0))
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
except Exception: except Exception:
return None return None

8
ucloud/common/request.py
View File

@ -17,7 +17,6 @@ class RequestType:
class RequestEntry(SpecificEtcdEntryBase): class RequestEntry(SpecificEtcdEntryBase):
def __init__(self, e): def __init__(self, e):
self.destination_sock_path = None self.destination_sock_path = None
self.destination_host_key = None self.destination_host_key = None
@ -30,8 +29,11 @@ class RequestEntry(SpecificEtcdEntryBase):
@classmethod @classmethod
def from_scratch(cls, request_prefix, **kwargs): def from_scratch(cls, request_prefix, **kwargs):
e = PsuedoEtcdEntry(join(request_prefix, uuid4().hex), e = PsuedoEtcdEntry(
value=json.dumps(kwargs).encode("utf-8"), value_in_json=True) join(request_prefix, uuid4().hex),
value=json.dumps(kwargs).encode("utf-8"),
value_in_json=True,
)
return cls(e) return cls(e)

10
ucloud/common/schemas.py
View File

@ -14,7 +14,7 @@ class StorageUnit(fields.Field):
class SpecsSchema(Schema): class SpecsSchema(Schema):
cpu = fields.Int() cpu = fields.Int()
ram = StorageUnit() ram = StorageUnit()
os_ssd = StorageUnit(data_key='os-ssd', attribute='os-ssd') os_ssd = StorageUnit(data_key="os-ssd", attribute="os-ssd")
hdd = fields.List(StorageUnit()) hdd = fields.List(StorageUnit())
@ -29,11 +29,13 @@ class VMSchema(Schema):
image_uuid = fields.Str() image_uuid = fields.Str()
hostname = fields.Str() hostname = fields.Str()
metadata = fields.Dict() metadata = fields.Dict()
network = fields.List(fields.Tuple((fields.Str(), fields.Str(), fields.Int()))) network = fields.List(
fields.Tuple((fields.Str(), fields.Str(), fields.Int()))
)
in_migration = fields.Bool() in_migration = fields.Bool()
class NetworkSchema(Schema): class NetworkSchema(Schema):
_id = fields.Int(data_key='id', attribute='id') _id = fields.Int(data_key="id", attribute="id")
_type = fields.Str(data_key='type', attribute='type') _type = fields.Str(data_key="type", attribute="type")
ipv6 = fields.Str() ipv6 = fields.Str()

53
ucloud/common/storage_handlers.py
View File

@ -11,7 +11,7 @@ from ucloud.settings import settings as config
class ImageStorageHandler(ABC): class ImageStorageHandler(ABC):
handler_name = 'base' handler_name = "base"
def __init__(self, image_base, vm_base): def __init__(self, image_base, vm_base):
self.image_base = image_base self.image_base = image_base
@ -55,9 +55,9 @@ class ImageStorageHandler(ABC):
try: try:
sp.check_output(command, stderr=sp.PIPE) sp.check_output(command, stderr=sp.PIPE)
except sp.CalledProcessError as e: except sp.CalledProcessError as e:
_stderr = e.stderr.decode('utf-8').strip() _stderr = e.stderr.decode("utf-8").strip()
if report: if report:
logger.exception('%s:- %s', error_origin, _stderr) logger.exception("%s:- %s", error_origin, _stderr)
return False return False
return True return True
@ -72,14 +72,16 @@ class ImageStorageHandler(ABC):
class FileSystemBasedImageStorageHandler(ImageStorageHandler): class FileSystemBasedImageStorageHandler(ImageStorageHandler):
handler_name = 'Filesystem' handler_name = "Filesystem"
def import_image(self, src, dest, protect=False): def import_image(self, src, dest, protect=False):
dest = join_path(self.image_base, dest) dest = join_path(self.image_base, dest)
try: try:
shutil.copy(src, dest) shutil.copy(src, dest)
if protect: if protect:
os.chmod(dest, stat.S_IRUSR | stat.S_IRGRP | stat.S_IROTH) os.chmod(
dest, stat.S_IRUSR | stat.S_IRGRP | stat.S_IROTH
)
except Exception as e: except Exception as e:
logger.exception(e) logger.exception(e)
return False return False
@ -97,7 +99,14 @@ class FileSystemBasedImageStorageHandler(ImageStorageHandler):
def resize_vm_image(self, path, size): def resize_vm_image(self, path, size):
path = join_path(self.vm_base, path) path = join_path(self.vm_base, path)
command = ["qemu-img", "resize", "-f", "raw", path, "{}M".format(size)] command = [
"qemu-img",
"resize",
"-f",
"raw",
path,
"{}M".format(size),
]
if self.execute_command(command): if self.execute_command(command):
return True return True
else: else:
@ -126,15 +135,25 @@ class FileSystemBasedImageStorageHandler(ImageStorageHandler):
class CEPHBasedImageStorageHandler(ImageStorageHandler): class CEPHBasedImageStorageHandler(ImageStorageHandler):
handler_name = 'Ceph' handler_name = "Ceph"
def import_image(self, src, dest, protect=False): def import_image(self, src, dest, protect=False):
dest = join_path(self.image_base, dest) dest = join_path(self.image_base, dest)
import_command = ["rbd", "import", src, dest] import_command = ["rbd", "import", src, dest]
commands = [import_command] commands = [import_command]
if protect: if protect:
snap_create_command = ["rbd", "snap", "create", "{}@protected".format(dest)] snap_create_command = [
snap_protect_command = ["rbd", "snap", "protect", "{}@protected".format(dest)] "rbd",
"snap",
"create",
"{}@protected".format(dest),
]
snap_protect_command = [
"rbd",
"snap",
"protect",
"{}@protected".format(dest),
]
commands.append(snap_create_command) commands.append(snap_create_command)
commands.append(snap_protect_command) commands.append(snap_protect_command)
@ -174,16 +193,16 @@ class CEPHBasedImageStorageHandler(ImageStorageHandler):
def get_storage_handler(): def get_storage_handler():
__storage_backend = config['storage']['storage_backend'] __storage_backend = config["storage"]["storage_backend"]
if __storage_backend == 'filesystem': if __storage_backend == "filesystem":
return FileSystemBasedImageStorageHandler( return FileSystemBasedImageStorageHandler(
vm_base=config['storage']['vm_dir'], vm_base=config["storage"]["vm_dir"],
image_base=config['storage']['image_dir'] image_base=config["storage"]["image_dir"],
) )
elif __storage_backend == 'ceph': elif __storage_backend == "ceph":
return CEPHBasedImageStorageHandler( return CEPHBasedImageStorageHandler(
vm_base=config['storage']['ceph_vm_pool'], vm_base=config["storage"]["ceph_vm_pool"],
image_base=config['storage']['ceph_image_pool'] image_base=config["storage"]["ceph_image_pool"],
) )
else: else:
raise Exception('Unknown Image Storage Handler') raise Exception("Unknown Image Storage Handler")

11
ucloud/common/vm.py
View File

@ -13,13 +13,12 @@ class VMStatus:
def declare_stopped(vm): def declare_stopped(vm):
vm['hostname'] = '' vm["hostname"] = ""
vm['in_migration'] = False vm["in_migration"] = False
vm['status'] = VMStatus.stopped vm["status"] = VMStatus.stopped
class VMEntry(SpecificEtcdEntryBase): class VMEntry(SpecificEtcdEntryBase):
def __init__(self, e): def __init__(self, e):
self.owner = None # type: str self.owner = None # type: str
self.specs = None # type: dict self.specs = None # type: dict
@ -48,7 +47,9 @@ class VMEntry(SpecificEtcdEntryBase):
def add_log(self, msg): def add_log(self, msg):
self.log = self.log[:5] self.log = self.log[:5]
self.log.append("{} - {}".format(datetime.now().isoformat(), msg)) self.log.append(
"{} - {}".format(datetime.now().isoformat(), msg)
)
class VmPool: class VmPool:

66
ucloud/configure/main.py
View File

@ -5,31 +5,41 @@ from ucloud.shared import shared
def update_config(section, kwargs): def update_config(section, kwargs):
uncloud_config = shared.etcd_client.get(settings.config_key, value_in_json=True) uncloud_config = shared.etcd_client.get(
settings.config_key, value_in_json=True
)
if not uncloud_config: if not uncloud_config:
uncloud_config = {} uncloud_config = {}
else: else:
uncloud_config = uncloud_config.value uncloud_config = uncloud_config.value
uncloud_config[section] = kwargs uncloud_config[section] = kwargs
shared.etcd_client.put(settings.config_key, uncloud_config, value_in_json=True) shared.etcd_client.put(
settings.config_key, uncloud_config, value_in_json=True
)
def configure_parser(parser): def configure_parser(parser):
configure_subparsers = parser.add_subparsers(dest="subcommand") configure_subparsers = parser.add_subparsers(dest="subcommand")
otp_parser = configure_subparsers.add_parser("otp") otp_parser = configure_subparsers.add_parser("otp")
otp_parser.add_argument("--verification-controller-url", otp_parser.add_argument(
required=True, metavar="URL") "--verification-controller-url", required=True, metavar="URL"
otp_parser.add_argument("--auth-name", required=True, )
metavar="OTP-NAME") otp_parser.add_argument(
otp_parser.add_argument("--auth-realm", required=True, "--auth-name", required=True, metavar="OTP-NAME"
metavar="OTP-REALM") )
otp_parser.add_argument("--auth-seed", required=True, otp_parser.add_argument(
metavar="OTP-SEED") "--auth-realm", required=True, metavar="OTP-REALM"
)
otp_parser.add_argument(
"--auth-seed", required=True, metavar="OTP-SEED"
)
network_parser = configure_subparsers.add_parser("network") network_parser = configure_subparsers.add_parser("network")
network_parser.add_argument("--prefix-length", required=True, type=int) network_parser.add_argument(
"--prefix-length", required=True, type=int
)
network_parser.add_argument("--prefix", required=True) network_parser.add_argument("--prefix", required=True)
network_parser.add_argument("--vxlan-phy-dev", required=True) network_parser.add_argument("--vxlan-phy-dev", required=True)
@ -38,25 +48,31 @@ def configure_parser(parser):
netbox_parser.add_argument("--token", required=True) netbox_parser.add_argument("--token", required=True)
ssh_parser = configure_subparsers.add_parser("ssh") ssh_parser = configure_subparsers.add_parser("ssh")
ssh_parser.add_argument('--username', default="root") ssh_parser.add_argument("--username", default="root")
ssh_parser.add_argument('--private-key-path', ssh_parser.add_argument(
default=os.path.expanduser("~/.ssh/id_rsa")) "--private-key-path",
default=os.path.expanduser("~/.ssh/id_rsa"),
)
storage_parser = configure_subparsers.add_parser("storage") storage_parser = configure_subparsers.add_parser("storage")
storage_parser.add_argument('--file-dir', required=True) storage_parser.add_argument("--file-dir", required=True)
storage_parser_subparsers = storage_parser.add_subparsers(dest="storage_backend") storage_parser_subparsers = storage_parser.add_subparsers(
dest="storage_backend"
filesystem_storage_parser = storage_parser_subparsers.add_parser("filesystem") )
filesystem_storage_parser.add_argument('--vm-dir', required=True)
filesystem_storage_parser.add_argument('--image-dir', required=True) filesystem_storage_parser = storage_parser_subparsers.add_parser(
"filesystem"
)
filesystem_storage_parser.add_argument("--vm-dir", required=True)
filesystem_storage_parser.add_argument("--image-dir", required=True)
ceph_storage_parser = storage_parser_subparsers.add_parser("ceph") ceph_storage_parser = storage_parser_subparsers.add_parser("ceph")
ceph_storage_parser.add_argument('--ceph-vm-pool', required=True) ceph_storage_parser.add_argument("--ceph-vm-pool", required=True)
ceph_storage_parser.add_argument('--ceph-image-pool', required=True) ceph_storage_parser.add_argument("--ceph-image-pool", required=True)
def main(**kwargs): def main(**kwargs):
subcommand = kwargs.pop('subcommand') subcommand = kwargs.pop("subcommand")
if not subcommand: if not subcommand:
pass pass
else: else:

14
ucloud/docs/source/conf.py
View File

@ -17,9 +17,9 @@
# -- Project information ----------------------------------------------------- # -- Project information -----------------------------------------------------
project = 'ucloud' project = "ucloud"
copyright = '2019, ungleich' copyright = "2019, ungleich"
author = 'ungleich' author = "ungleich"
# -- General configuration --------------------------------------------------- # -- General configuration ---------------------------------------------------
@ -27,12 +27,12 @@ author = 'ungleich'
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
# ones. # ones.
extensions = [ extensions = [
'sphinx.ext.autodoc', "sphinx.ext.autodoc",
'sphinx_rtd_theme', "sphinx_rtd_theme",
] ]
# Add any paths that contain templates here, relative to this directory. # Add any paths that contain templates here, relative to this directory.
templates_path = ['_templates'] templates_path = ["_templates"]
# List of patterns, relative to source directory, that match files and # List of patterns, relative to source directory, that match files and
# directories to ignore when looking for source files. # directories to ignore when looking for source files.
@ -50,4 +50,4 @@ html_theme = "sphinx_rtd_theme"
# Add any paths that contain custom static files (such as style sheets) here, # Add any paths that contain custom static files (such as style sheets) here,
# relative to this directory. They are copied after the builtin static files, # relative to this directory. They are copied after the builtin static files,
# so a file named "default.css" will overwrite the builtin "default.css". # so a file named "default.css" will overwrite the builtin "default.css".
html_static_path = ['_static'] html_static_path = ["_static"]

15
ucloud/filescanner/main.py
View File

@ -21,7 +21,8 @@ def sha512sum(file: str):
ELSE: ELSE:
return None return None
""" """
if not isinstance(file, str): raise TypeError if not isinstance(file, str):
raise TypeError
try: try:
output = sp.check_output(["sha512sum", file], stderr=sp.PIPE) output = sp.check_output(["sha512sum", file], stderr=sp.PIPE)
except sp.CalledProcessError as e: except sp.CalledProcessError as e:
@ -49,23 +50,25 @@ def track_file(file, base_dir):
file_path = pathlib.Path(file).parts[-1] file_path = pathlib.Path(file).parts[-1]
# Create Entry # Create Entry
entry_key = os.path.join(settings['etcd']['file_prefix'], str(file_id)) entry_key = os.path.join(
settings["etcd"]["file_prefix"], str(file_id)
)
entry_value = { entry_value = {
"filename": file_path, "filename": file_path,
"owner": owner, "owner": owner,
"sha512sum": sha512sum(file), "sha512sum": sha512sum(file),
"creation_date": creation_date, "creation_date": creation_date,
"size": os.path.getsize(file) "size": os.path.getsize(file),
} }
logger.info("Tracking %s", file) logger.info("Tracking %s", file)
shared.etcd_client.put(entry_key, entry_value, value_in_json=True) shared.etcd_client.put(entry_key, entry_value, value_in_json=True)
os.setxattr(file, 'user.utracked', b'True') os.setxattr(file, "user.utracked", b"True")
def main(): def main():
base_dir = settings['storage']['file_dir'] base_dir = settings["storage"]["file_dir"]
# Recursively Get All Files and Folder below BASE_DIR # Recursively Get All Files and Folder below BASE_DIR
files = glob.glob("{}/**".format(base_dir), recursive=True) files = glob.glob("{}/**".format(base_dir), recursive=True)
@ -76,7 +79,7 @@ def main():
untracked_files = [] untracked_files = []
for file in files: for file in files:
try: try:
os.getxattr(file, 'user.utracked') os.getxattr(file, "user.utracked")
except OSError: except OSError:
track_file(file, base_dir) track_file(file, base_dir)
untracked_files.append(file) untracked_files.append(file)

82
ucloud/host/main.py
View File

@ -15,49 +15,79 @@ from . import virtualmachine, logger
def update_heartbeat(hostname): def update_heartbeat(hostname):
"""Update Last HeartBeat Time for :param hostname: in etcd""" """Update Last HeartBeat Time for :param hostname: in etcd"""
host_pool = shared.host_pool host_pool = shared.host_pool
this_host = next(filter(lambda h: h.hostname == hostname, host_pool.hosts), None) this_host = next(
filter(lambda h: h.hostname == hostname, host_pool.hosts), None
)
while True: while True:
this_host.update_heartbeat() this_host.update_heartbeat()
host_pool.put(this_host) host_pool.put(this_host)
time.sleep(10) time.sleep(10)
def maintenance(): def maintenance(host):
vmm = VMM() vmm = VMM()
running_vms = vmm.discover() running_vms = vmm.discover()
for vm_uuid in running_vms: for vm_uuid in running_vms:
if vmm.is_running(vm_uuid) and vmm.get_status(vm_uuid) == 'running': if (
vm = shared.vm_pool.get(join_path(settings['etcd']['vm_prefix'], vm_uuid)) vmm.is_running(vm_uuid)
and vmm.get_status(vm_uuid) == "running"
):
vm = shared.vm_pool.get(
join_path(settings["etcd"]["vm_prefix"], vm_uuid)
)
vm.status = VMStatus.running vm.status = VMStatus.running
vm.vnc_socket = vmm.get_vnc(vm_uuid)
vm.hostname = host
shared.vm_pool.put(vm) shared.vm_pool.put(vm)
def main(hostname): def main(hostname):
host_pool = shared.host_pool host_pool = shared.host_pool
host = next(filter(lambda h: h.hostname == hostname, host_pool.hosts), None) host = next(
assert host is not None, "No such host with name = {}".format(hostname) filter(lambda h: h.hostname == hostname, host_pool.hosts), None
)
assert host is not None, "No such host with name = {}".format(
hostname
)
try: try:
heartbeat_updating_process = mp.Process(target=update_heartbeat, args=(hostname,)) heartbeat_updating_process = mp.Process(
target=update_heartbeat, args=(hostname,)
)
heartbeat_updating_process.start() heartbeat_updating_process.start()
except Exception as e: except Exception as e:
raise Exception('ucloud-host heartbeat updating mechanism is not working') from e raise Exception(
"ucloud-host heartbeat updating mechanism is not working"
) from e
for events_iterator in [ for events_iterator in [
shared.etcd_client.get_prefix(settings['etcd']['request_prefix'], value_in_json=True), shared.etcd_client.get_prefix(
shared.etcd_client.watch_prefix(settings['etcd']['request_prefix'], timeout=10, value_in_json=True), settings["etcd"]["request_prefix"], value_in_json=True
),
shared.etcd_client.watch_prefix(
settings["etcd"]["request_prefix"],
timeout=10,
value_in_json=True,
),
]: ]:
for request_event in events_iterator: for request_event in events_iterator:
request_event = RequestEntry(request_event) request_event = RequestEntry(request_event)
if request_event.type == "TIMEOUT": if request_event.type == "TIMEOUT":
maintenance() maintenance(host.key)
if request_event.hostname == host.key: if request_event.hostname == host.key:
logger.debug("VM Request: %s", request_event) logger.debug("VM Request: %s", request_event)
shared.request_pool.client.client.delete(request_event.key) shared.request_pool.client.client.delete(
vm_entry = shared.etcd_client.get(join_path(settings['etcd']['vm_prefix'], request_event.uuid)) request_event.key
)
vm_entry = shared.etcd_client.get(
join_path(
settings["etcd"]["vm_prefix"],
request_event.uuid,
)
)
if vm_entry: if vm_entry:
vm = virtualmachine.VM(vm_entry) vm = virtualmachine.VM(vm_entry)
@ -70,23 +100,35 @@ def main(hostname):
elif request_event.type == RequestType.DeleteVM: elif request_event.type == RequestType.DeleteVM:
vm.delete() vm.delete()
elif request_event.type == RequestType.InitVMMigration: elif (
request_event.type
== RequestType.InitVMMigration
):
vm.start(destination_host_key=host.key) vm.start(destination_host_key=host.key)
elif request_event.type == RequestType.TransferVM: elif request_event.type == RequestType.TransferVM:
host = host_pool.get(request_event.destination_host_key) host = host_pool.get(
request_event.destination_host_key
)
if host: if host:
vm.migrate(destination_host=host.hostname, vm.migrate(
destination_sock_path=request_event.destination_sock_path) destination_host=host.hostname,
destination_sock_path=request_event.destination_sock_path,
)
else: else:
logger.error('Host %s not found!', request_event.destination_host_key) logger.error(
"Host %s not found!",
request_event.destination_host_key,
)
else: else:
logger.info("VM Entry missing") logger.info("VM Entry missing")
if __name__ == "__main__": if __name__ == "__main__":
argparser = argparse.ArgumentParser() argparser = argparse.ArgumentParser()
argparser.add_argument("hostname", help="Name of this host. e.g uncloud1.ungleich.ch") argparser.add_argument(
"hostname", help="Name of this host. e.g uncloud1.ungleich.ch"
)
args = argparser.parse_args() args = argparser.parse_args()
mp.set_start_method('spawn') mp.set_start_method("spawn")
main(args.hostname) main(args.hostname)

173
ucloud/host/qmp/__init__.py
View File

@ -26,10 +26,7 @@ LOG = logging.getLogger(__name__)
# Mapping host architecture to any additional architectures it can # Mapping host architecture to any additional architectures it can
# support which often includes its 32 bit cousin. # support which often includes its 32 bit cousin.
ADDITIONAL_ARCHES = { ADDITIONAL_ARCHES = {"x86_64": "i386", "aarch64": "armhf"}
"x86_64": "i386",
"aarch64": "armhf"
}
def kvm_available(target_arch=None): def kvm_available(target_arch=None):
@ -81,10 +78,17 @@ class QEMUMachine(object):
# vm is guaranteed to be shut down here # vm is guaranteed to be shut down here
""" """
def __init__(self, binary, args=None, wrapper=None, name=None, def __init__(
test_dir="/var/tmp", monitor_address=None, self,
socket_scm_helper=None): binary,
''' args=None,
wrapper=None,
name=None,
test_dir="/var/tmp",
monitor_address=None,
socket_scm_helper=None,
):
"""
Initialize a QEMUMachine Initialize a QEMUMachine
@param binary: path to the qemu binary @param binary: path to the qemu binary
@ -95,7 +99,7 @@ class QEMUMachine(object):
@param monitor_address: address for QMP monitor @param monitor_address: address for QMP monitor
@param socket_scm_helper: helper program, required for send_fd_scm() @param socket_scm_helper: helper program, required for send_fd_scm()
@note: Qemu process is not started until launch() is used. @note: Qemu process is not started until launch() is used.
''' """
if args is None: if args is None:
args = [] args = []
if wrapper is None: if wrapper is None:
@ -109,7 +113,9 @@ class QEMUMachine(object):
self._qemu_log_file = None self._qemu_log_file = None
self._popen = None self._popen = None
self._binary = binary self._binary = binary
self._args = list(args) # Force copy args in case we modify them self._args = list(
args
) # Force copy args in case we modify them
self._wrapper = wrapper self._wrapper = wrapper
self._events = [] self._events = []
self._iolog = None self._iolog = None
@ -137,26 +143,24 @@ class QEMUMachine(object):
# This can be used to add an unused monitor instance. # This can be used to add an unused monitor instance.
def add_monitor_null(self): def add_monitor_null(self):
self._args.append('-monitor') self._args.append("-monitor")
self._args.append('null') self._args.append("null")
def add_fd(self, fd, fdset, opaque, opts=''): def add_fd(self, fd, fdset, opaque, opts=""):
""" """
Pass a file descriptor to the VM Pass a file descriptor to the VM
""" """
options = ['fd=%d' % fd, options = ["fd=%d" % fd, "set=%d" % fdset, "opaque=%s" % opaque]
'set=%d' % fdset,
'opaque=%s' % opaque]
if opts: if opts:
options.append(opts) options.append(opts)
# This did not exist before 3.4, but since then it is # This did not exist before 3.4, but since then it is
# mandatory for our purpose # mandatory for our purpose
if hasattr(os, 'set_inheritable'): if hasattr(os, "set_inheritable"):
os.set_inheritable(fd, True) os.set_inheritable(fd, True)
self._args.append('-add-fd') self._args.append("-add-fd")
self._args.append(','.join(options)) self._args.append(",".join(options))
return self return self
# Exactly one of fd and file_path must be given. # Exactly one of fd and file_path must be given.
@ -168,18 +172,21 @@ class QEMUMachine(object):
if self._socket_scm_helper is None: if self._socket_scm_helper is None:
raise QEMUMachineError("No path to socket_scm_helper set") raise QEMUMachineError("No path to socket_scm_helper set")
if not os.path.exists(self._socket_scm_helper): if not os.path.exists(self._socket_scm_helper):
raise QEMUMachineError("%s does not exist" % raise QEMUMachineError(
self._socket_scm_helper) "%s does not exist" % self._socket_scm_helper
)
# This did not exist before 3.4, but since then it is # This did not exist before 3.4, but since then it is
# mandatory for our purpose # mandatory for our purpose
if hasattr(os, 'set_inheritable'): if hasattr(os, "set_inheritable"):
os.set_inheritable(self._qmp.get_sock_fd(), True) os.set_inheritable(self._qmp.get_sock_fd(), True)
if fd is not None: if fd is not None:
os.set_inheritable(fd, True) os.set_inheritable(fd, True)
fd_param = ["%s" % self._socket_scm_helper, fd_param = [
"%d" % self._qmp.get_sock_fd()] "%s" % self._socket_scm_helper,
"%d" % self._qmp.get_sock_fd(),
]
if file_path is not None: if file_path is not None:
assert fd is None assert fd is None
@ -188,9 +195,14 @@ class QEMUMachine(object):
assert fd is not None assert fd is not None
fd_param.append(str(fd)) fd_param.append(str(fd))
devnull = open(os.path.devnull, 'rb') devnull = open(os.path.devnull, "rb")
proc = subprocess.Popen(fd_param, stdin=devnull, stdout=subprocess.PIPE, proc = subprocess.Popen(
stderr=subprocess.STDOUT, close_fds=False) fd_param,
stdin=devnull,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
close_fds=False,
)
output = proc.communicate()[0] output = proc.communicate()[0]
if output: if output:
LOG.debug(output) LOG.debug(output)
@ -231,24 +243,29 @@ class QEMUMachine(object):
if isinstance(self._monitor_address, tuple): if isinstance(self._monitor_address, tuple):
moncdev = "socket,id=mon,host=%s,port=%s" % ( moncdev = "socket,id=mon,host=%s,port=%s" % (
self._monitor_address[0], self._monitor_address[0],
self._monitor_address[1]) self._monitor_address[1],
)
else: else:
moncdev = 'socket,id=mon,path=%s' % self._vm_monitor moncdev = "socket,id=mon,path=%s" % self._vm_monitor
args = ['-chardev', moncdev, args = ["-chardev", moncdev, "-mon", "chardev=mon,mode=control"]
'-mon', 'chardev=mon,mode=control']
if self._machine is not None: if self._machine is not None:
args.extend(['-machine', self._machine]) args.extend(["-machine", self._machine])
if self._console_set: if self._console_set:
self._console_address = os.path.join(self._temp_dir, self._console_address = os.path.join(
self._name + "-console.sock") self._temp_dir, self._name + "-console.sock"
chardev = ('socket,id=console,path=%s,server,nowait' % )
self._console_address) chardev = (
args.extend(['-chardev', chardev]) "socket,id=console,path=%s,server,nowait"
% self._console_address
)
args.extend(["-chardev", chardev])
if self._console_device_type is None: if self._console_device_type is None:
args.extend(['-serial', 'chardev:console']) args.extend(["-serial", "chardev:console"])
else: else:
device = '%s,chardev=console' % self._console_device_type device = (
args.extend(['-device', device]) "%s,chardev=console" % self._console_device_type
)
args.extend(["-device", device])
return args return args
def _pre_launch(self): def _pre_launch(self):
@ -256,13 +273,17 @@ class QEMUMachine(object):
if self._monitor_address is not None: if self._monitor_address is not None:
self._vm_monitor = self._monitor_address self._vm_monitor = self._monitor_address
else: else:
self._vm_monitor = os.path.join(self._temp_dir, self._vm_monitor = os.path.join(
self._name + "-monitor.sock") self._temp_dir, self._name + "-monitor.sock"
self._qemu_log_path = os.path.join(self._temp_dir, self._name + ".log") )
self._qemu_log_file = open(self._qemu_log_path, 'wb') self._qemu_log_path = os.path.join(
self._temp_dir, self._name + ".log"
)
self._qemu_log_file = open(self._qemu_log_path, "wb")
self._qmp = qmp.QEMUMonitorProtocol(self._vm_monitor, self._qmp = qmp.QEMUMonitorProtocol(
server=True) self._vm_monitor, server=True
)
def _post_launch(self): def _post_launch(self):
self._qmp.accept() self._qmp.accept()
@ -289,7 +310,7 @@ class QEMUMachine(object):
""" """
if self._launched: if self._launched:
raise QEMUMachineError('VM already launched') raise QEMUMachineError("VM already launched")
self._iolog = None self._iolog = None
self._qemu_full_args = None self._qemu_full_args = None
@ -299,11 +320,11 @@ class QEMUMachine(object):
except: except:
self.shutdown() self.shutdown()
LOG.debug('Error launching VM') LOG.debug("Error launching VM")
if self._qemu_full_args: if self._qemu_full_args:
LOG.debug('Command: %r', ' '.join(self._qemu_full_args)) LOG.debug("Command: %r", " ".join(self._qemu_full_args))
if self._iolog: if self._iolog:
LOG.debug('Output: %r', self._iolog) LOG.debug("Output: %r", self._iolog)
raise Exception(self._iolog) raise Exception(self._iolog)
raise raise
@ -311,17 +332,25 @@ class QEMUMachine(object):
""" """
Launch the VM and establish a QMP connection Launch the VM and establish a QMP connection
""" """
devnull = open(os.path.devnull, 'rb') devnull = open(os.path.devnull, "rb")
self._pre_launch() self._pre_launch()
self._qemu_full_args = (self._wrapper + [self._binary] + self._qemu_full_args = (
self._base_args() + self._args) self._wrapper
LOG.debug('VM launch command: %r', ' '.join(self._qemu_full_args)) + [self._binary]
self._popen = subprocess.Popen(self._qemu_full_args, + self._base_args()
stdin=devnull, + self._args
stdout=self._qemu_log_file, )
stderr=subprocess.STDOUT, LOG.debug(
shell=False, "VM launch command: %r", " ".join(self._qemu_full_args)
close_fds=False) )
self._popen = subprocess.Popen(
self._qemu_full_args,
stdin=devnull,
stdout=self._qemu_log_file,
stderr=subprocess.STDOUT,
shell=False,
close_fds=False,
)
self._post_launch() self._post_launch()
def wait(self): def wait(self):
@ -339,7 +368,7 @@ class QEMUMachine(object):
""" """
if self.is_running(): if self.is_running():
try: try:
self._qmp.cmd('quit') self._qmp.cmd("quit")
self._qmp.close() self._qmp.close()
except: except:
self._popen.kill() self._popen.kill()
@ -350,11 +379,11 @@ class QEMUMachine(object):
exitcode = self.exitcode() exitcode = self.exitcode()
if exitcode is not None and exitcode < 0: if exitcode is not None and exitcode < 0:
msg = 'qemu received signal %i: %s' msg = "qemu received signal %i: %s"
if self._qemu_full_args: if self._qemu_full_args:
command = ' '.join(self._qemu_full_args) command = " ".join(self._qemu_full_args)
else: else:
command = '' command = ""
LOG.warn(msg, -exitcode, command) LOG.warn(msg, -exitcode, command)
self._launched = False self._launched = False
@ -366,7 +395,7 @@ class QEMUMachine(object):
qmp_args = dict() qmp_args = dict()
for key, value in args.items(): for key, value in args.items():
if conv_keys: if conv_keys:
qmp_args[key.replace('_', '-')] = value qmp_args[key.replace("_", "-")] = value
else: else:
qmp_args[key] = value qmp_args[key] = value
@ -427,7 +456,9 @@ class QEMUMachine(object):
try: try:
for key in match: for key in match:
if key in event: if key in event:
if not QEMUMachine.event_match(event[key], match[key]): if not QEMUMachine.event_match(
event[key], match[key]
):
return False return False
else: else:
return False return False
@ -458,8 +489,9 @@ class QEMUMachine(object):
def _match(event): def _match(event):
for name, match in events: for name, match in events:
if (event['event'] == name and if event["event"] == name and self.event_match(
self.event_match(event, match)): event, match
):
return True return True
return False return False
@ -531,7 +563,8 @@ class QEMUMachine(object):
Returns a socket connected to the console Returns a socket connected to the console
""" """
if self._console_socket is None: if self._console_socket is None:
self._console_socket = socket.socket(socket.AF_UNIX, self._console_socket = socket.socket(
socket.SOCK_STREAM) socket.AF_UNIX, socket.SOCK_STREAM
)
self._console_socket.connect(self._console_address) self._console_socket.connect(self._console_address)
return self._console_socket return self._console_socket

22
ucloud/host/qmp/qmp.py
View File

@ -32,7 +32,7 @@ class QMPTimeoutError(QMPError):
class QEMUMonitorProtocol(object): class QEMUMonitorProtocol(object):
#: Logger object for debugging messages #: Logger object for debugging messages
logger = logging.getLogger('QMP') logger = logging.getLogger("QMP")
#: Socket's error class #: Socket's error class
error = socket.error error = socket.error
#: Socket's timeout #: Socket's timeout
@ -55,7 +55,9 @@ class QEMUMonitorProtocol(object):
self.__sock = self.__get_sock() self.__sock = self.__get_sock()
self.__sockfile = None self.__sockfile = None
if server: if server:
self.__sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) self.__sock.setsockopt(
socket.SOL_SOCKET, socket.SO_REUSEADDR, 1
)
self.__sock.bind(self.__address) self.__sock.bind(self.__address)
self.__sock.listen(1) self.__sock.listen(1)
@ -71,7 +73,7 @@ class QEMUMonitorProtocol(object):
if greeting is None or "QMP" not in greeting: if greeting is None or "QMP" not in greeting:
raise QMPConnectError raise QMPConnectError
# Greeting seems ok, negotiate capabilities # Greeting seems ok, negotiate capabilities
resp = self.cmd('qmp_capabilities') resp = self.cmd("qmp_capabilities")
if "return" in resp: if "return" in resp:
return greeting return greeting
raise QMPCapabilitiesError raise QMPCapabilitiesError
@ -82,7 +84,7 @@ class QEMUMonitorProtocol(object):
if not data: if not data:
return return
resp = json.loads(data) resp = json.loads(data)
if 'event' in resp: if "event" in resp:
self.logger.debug("<<< %s", resp) self.logger.debug("<<< %s", resp)
self.__events.append(resp) self.__events.append(resp)
if not only_event: if not only_event:
@ -165,7 +167,7 @@ class QEMUMonitorProtocol(object):
""" """
self.logger.debug(">>> %s", qmp_cmd) self.logger.debug(">>> %s", qmp_cmd)
try: try:
self.__sock.sendall(json.dumps(qmp_cmd).encode('utf-8')) self.__sock.sendall(json.dumps(qmp_cmd).encode("utf-8"))
except socket.error as err: except socket.error as err:
if err[0] == errno.EPIPE: if err[0] == errno.EPIPE:
return return
@ -182,11 +184,11 @@ class QEMUMonitorProtocol(object):
@param args: command arguments (dict) @param args: command arguments (dict)
@param cmd_id: command id (dict, list, string or int) @param cmd_id: command id (dict, list, string or int)
""" """
qmp_cmd = {'execute': name} qmp_cmd = {"execute": name}
if args: if args:
qmp_cmd['arguments'] = args qmp_cmd["arguments"] = args
if cmd_id: if cmd_id:
qmp_cmd['id'] = cmd_id qmp_cmd["id"] = cmd_id
return self.cmd_obj(qmp_cmd) return self.cmd_obj(qmp_cmd)
def command(self, cmd, **kwds): def command(self, cmd, **kwds):
@ -195,8 +197,8 @@ class QEMUMonitorProtocol(object):
""" """
ret = self.cmd(cmd, kwds) ret = self.cmd(cmd, kwds)
if "error" in ret: if "error" in ret:
raise Exception(ret['error']['desc']) raise Exception(ret["error"]["desc"])
return ret['return'] return ret["return"]
def pull_event(self, wait=False): def pull_event(self, wait=False):
""" """

220
ucloud/host/virtualmachine.py
View File

@ -23,10 +23,6 @@ from ucloud.vmm import VMM
from marshmallow import ValidationError from marshmallow import ValidationError
def maintenance():
pass
class VM: class VM:
def __init__(self, vm_entry): def __init__(self, vm_entry):
self.schema = VMSchema() self.schema = VMSchema()
@ -35,23 +31,30 @@ class VM:
try: try:
self.vm = self.schema.loads(vm_entry.value) self.vm = self.schema.loads(vm_entry.value)
except ValidationError: except ValidationError:
logger.exception('Couldn\'t validate VM Entry', vm_entry.value) logger.exception(
"Couldn't validate VM Entry", vm_entry.value
)
self.vm = None self.vm = None
else: else:
self.uuid = vm_entry.key.split('/')[-1] self.uuid = vm_entry.key.split("/")[-1]
self.host_key = self.vm['hostname'] self.host_key = self.vm["hostname"]
def get_qemu_args(self): def get_qemu_args(self):
command = ( command = (
'-name {owner}_{name}' "-name {owner}_{name}"
' -drive file={file},format=raw,if=virtio,cache=none' " -drive file={file},format=raw,if=virtio,cache=none"
' -device virtio-rng-pci' " -device virtio-rng-pci"
' -m {memory} -smp cores={cores},threads={threads}' " -m {memory} -smp cores={cores},threads={threads}"
).format(owner=self.vm['owner'], name=self.vm['name'], ).format(
memory=int(self.vm['specs']['ram'].to_MB()), cores=self.vm['specs']['cpu'], owner=self.vm["owner"],
threads=1, file=shared.storage_handler.qemu_path_string(self.uuid)) name=self.vm["name"],
memory=int(self.vm["specs"]["ram"].to_MB()),
cores=self.vm["specs"]["cpu"],
threads=1,
file=shared.storage_handler.qemu_path_string(self.uuid),
)
return command.split(' ') return command.split(" ")
def start(self, destination_host_key=None): def start(self, destination_host_key=None):
migration = False migration = False
@ -63,24 +66,34 @@ class VM:
network_args = self.create_network_dev() network_args = self.create_network_dev()
except Exception as err: except Exception as err:
declare_stopped(self.vm) declare_stopped(self.vm)
self.vm['log'].append('Cannot Setup Network Properly') self.vm["log"].append("Cannot Setup Network Properly")
logger.error('Cannot Setup Network Properly for vm %s', self.uuid, exc_info=err) logger.error(
"Cannot Setup Network Properly for vm %s",
self.uuid,
exc_info=err,
)
else: else:
self.vmm.start(uuid=self.uuid, migration=migration, self.vmm.start(
*self.get_qemu_args(), *network_args) uuid=self.uuid,
migration=migration,
*self.get_qemu_args(),
*network_args
)
status = self.vmm.get_status(self.uuid) status = self.vmm.get_status(self.uuid)
if status == 'running': if status == "running":
self.vm['status'] = VMStatus.running self.vm["status"] = VMStatus.running
self.vm['vnc_socket'] = self.vmm.get_vnc(self.uuid) self.vm["vnc_socket"] = self.vmm.get_vnc(self.uuid)
elif status == 'inmigrate': elif status == "inmigrate":
r = RequestEntry.from_scratch( r = RequestEntry.from_scratch(
type=RequestType.TransferVM, # Transfer VM type=RequestType.TransferVM, # Transfer VM
hostname=self.host_key, # Which VM should get this request. It is source host hostname=self.host_key, # Which VM should get this request. It is source host
uuid=self.uuid, # uuid of VM uuid=self.uuid, # uuid of VM
destination_sock_path=join_path(self.vmm.socket_dir, self.uuid), destination_sock_path=join_path(
self.vmm.socket_dir, self.uuid
),
destination_host_key=destination_host_key, # Where source host transfer VM destination_host_key=destination_host_key, # Where source host transfer VM
request_prefix=settings['etcd']['request_prefix'] request_prefix=settings["etcd"]["request_prefix"],
) )
shared.request_pool.put(r) shared.request_pool.put(r)
else: else:
@ -96,15 +109,22 @@ class VM:
self.sync() self.sync()
def migrate(self, destination_host, destination_sock_path): def migrate(self, destination_host, destination_sock_path):
self.vmm.transfer(src_uuid=self.uuid, destination_sock_path=destination_sock_path, self.vmm.transfer(
host=destination_host) src_uuid=self.uuid,
destination_sock_path=destination_sock_path,
host=destination_host,
)
def create_network_dev(self): def create_network_dev(self):
command = '' command = ""
for network_mac_and_tap in self.vm['network']: for network_mac_and_tap in self.vm["network"]:
network_name, mac, tap = network_mac_and_tap network_name, mac, tap = network_mac_and_tap
_key = os.path.join(settings['etcd']['network_prefix'], self.vm['owner'], network_name) _key = os.path.join(
settings["etcd"]["network_prefix"],
self.vm["owner"],
network_name,
)
network = shared.etcd_client.get(_key, value_in_json=True) network = shared.etcd_client.get(_key, value_in_json=True)
network_schema = NetworkSchema() network_schema = NetworkSchema()
try: try:
@ -112,49 +132,64 @@ class VM:
except ValidationError: except ValidationError:
continue continue
if network['type'] == "vxlan": if network["type"] == "vxlan":
tap = create_vxlan_br_tap(_id=network['id'], tap = create_vxlan_br_tap(
_dev=settings['network']['vxlan_phy_dev'], _id=network["id"],
tap_id=tap, _dev=settings["network"]["vxlan_phy_dev"],
ip=network['ipv6']) tap_id=tap,
ip=network["ipv6"],
)
all_networks = shared.etcd_client.get_prefix(settings['etcd']['network_prefix'], all_networks = shared.etcd_client.get_prefix(
value_in_json=True) settings["etcd"]["network_prefix"],
value_in_json=True,
)
if ipaddress.ip_network(network['ipv6']).is_global: if ipaddress.ip_network(network["ipv6"]).is_global:
update_radvd_conf(all_networks) update_radvd_conf(all_networks)
command += '-netdev tap,id=vmnet{net_id},ifname={tap},script=no,downscript=no' \ command += (
' -device virtio-net-pci,netdev=vmnet{net_id},mac={mac}' \ "-netdev tap,id=vmnet{net_id},ifname={tap},script=no,downscript=no"
.format(tap=tap, net_id=network['id'], mac=mac) " -device virtio-net-pci,netdev=vmnet{net_id},mac={mac}".format(
tap=tap, net_id=network["id"], mac=mac
)
)
return command.split(' ') return command.split(" ")
def delete_network_dev(self): def delete_network_dev(self):
try: try:
for network in self.vm['network']: for network in self.vm["network"]:
network_name = network[0] network_name = network[0]
_ = network[1] # tap_mac _ = network[1] # tap_mac
tap_id = network[2] tap_id = network[2]
delete_network_interface('tap{}'.format(tap_id)) delete_network_interface("tap{}".format(tap_id))
owners_vms = shared.vm_pool.by_owner(self.vm['owner']) owners_vms = shared.vm_pool.by_owner(self.vm["owner"])
owners_running_vms = shared.vm_pool.by_status(VMStatus.running, owners_running_vms = shared.vm_pool.by_status(
_vms=owners_vms) VMStatus.running, _vms=owners_vms
)
networks = map( networks = map(
lambda n: n[0], map(lambda vm: vm.network, owners_running_vms) lambda n: n[0],
map(lambda vm: vm.network, owners_running_vms),
) )
networks_in_use_by_user_vms = [vm[0] for vm in networks] networks_in_use_by_user_vms = [vm[0] for vm in networks]
if network_name not in networks_in_use_by_user_vms: if network_name not in networks_in_use_by_user_vms:
network_entry = resolve_network(network[0], self.vm['owner']) network_entry = resolve_network(
network[0], self.vm["owner"]
)
if network_entry: if network_entry:
network_type = network_entry.value["type"] network_type = network_entry.value["type"]
network_id = network_entry.value["id"] network_id = network_entry.value["id"]
if network_type == "vxlan": if network_type == "vxlan":
delete_network_interface('br{}'.format(network_id)) delete_network_interface(
delete_network_interface('vxlan{}'.format(network_id)) "br{}".format(network_id)
)
delete_network_interface(
"vxlan{}".format(network_id)
)
except Exception: except Exception:
logger.exception("Exception in network interface deletion") logger.exception("Exception in network interface deletion")
@ -163,15 +198,21 @@ class VM:
# File Already exists. No Problem Continue # File Already exists. No Problem Continue
logger.debug("Image for vm %s exists", self.uuid) logger.debug("Image for vm %s exists", self.uuid)
else: else:
if shared.storage_handler.make_vm_image(src=self.vm['image_uuid'], dest=self.uuid): if shared.storage_handler.make_vm_image(
if not shared.storage_handler.resize_vm_image(path=self.uuid, src=self.vm["image_uuid"], dest=self.uuid
size=int(self.vm['specs']['os-ssd'].to_MB())): ):
self.vm['status'] = VMStatus.error if not shared.storage_handler.resize_vm_image(
path=self.uuid,
size=int(self.vm["specs"]["os-ssd"].to_MB()),
):
self.vm["status"] = VMStatus.error
else: else:
logger.info("New VM Created") logger.info("New VM Created")
def sync(self): def sync(self):
shared.etcd_client.put(self.key, self.schema.dump(self.vm), value_in_json=True) shared.etcd_client.put(
self.key, self.schema.dump(self.vm), value_in_json=True
)
def delete(self): def delete(self):
self.stop() self.stop()
@ -186,50 +227,77 @@ class VM:
def resolve_network(network_name, network_owner): def resolve_network(network_name, network_owner):
network = shared.etcd_client.get( network = shared.etcd_client.get(
join_path(settings['etcd']['network_prefix'], network_owner, network_name), value_in_json=True join_path(
settings["etcd"]["network_prefix"],
network_owner,
network_name,
),
value_in_json=True,
) )
return network return network
def create_vxlan_br_tap(_id, _dev, tap_id, ip=None): def create_vxlan_br_tap(_id, _dev, tap_id, ip=None):
network_script_base = os.path.join(os.path.dirname(os.path.dirname(__file__)), 'network') network_script_base = os.path.join(
vxlan = create_dev(script=os.path.join(network_script_base, 'create-vxlan.sh'), os.path.dirname(os.path.dirname(__file__)), "network"
_id=_id, dev=_dev) )
vxlan = create_dev(
script=os.path.join(network_script_base, "create-vxlan.sh"),
_id=_id,
dev=_dev,
)
if vxlan: if vxlan:
bridge = create_dev(script=os.path.join(network_script_base, 'create-bridge.sh'), bridge = create_dev(
_id=_id, dev=vxlan, ip=ip) script=os.path.join(
network_script_base, "create-bridge.sh"
),
_id=_id,
dev=vxlan,
ip=ip,
)
if bridge: if bridge:
tap = create_dev(script=os.path.join(network_script_base, 'create-tap.sh'), tap = create_dev(
_id=str(tap_id), dev=bridge) script=os.path.join(
network_script_base, "create-tap.sh"
),
_id=str(tap_id),
dev=bridge,
)
if tap: if tap:
return tap return tap
def update_radvd_conf(all_networks): def update_radvd_conf(all_networks):
network_script_base = os.path.join(os.path.dirname(os.path.dirname(__file__)), 'network') network_script_base = os.path.join(
os.path.dirname(os.path.dirname(__file__)), "network"
)
networks = { networks = {
net.value['ipv6']: net.value['id'] net.value["ipv6"]: net.value["id"]
for net in all_networks for net in all_networks
if net.value.get('ipv6') and ipaddress.ip_network(net.value.get('ipv6')).is_global if net.value.get("ipv6")
and ipaddress.ip_network(net.value.get("ipv6")).is_global
} }
radvd_template = open(os.path.join(network_script_base, radvd_template = open(
'radvd-template.conf'), 'r').read() os.path.join(network_script_base, "radvd-template.conf"), "r"
).read()
radvd_template = Template(radvd_template) radvd_template = Template(radvd_template)
content = [ content = [
radvd_template.safe_substitute( radvd_template.safe_substitute(
bridge='br{}'.format(networks[net]), bridge="br{}".format(networks[net]), prefix=net
prefix=net
) )
for net in networks if networks.get(net) for net in networks
if networks.get(net)
] ]
with open('/etc/radvd.conf', 'w') as radvd_conf: with open("/etc/radvd.conf", "w") as radvd_conf:
radvd_conf.writelines(content) radvd_conf.writelines(content)
try: try:
sp.check_output(['systemctl', 'restart', 'radvd']) sp.check_output(["systemctl", "restart", "radvd"])
except sp.CalledProcessError: except sp.CalledProcessError:
try: try:
sp.check_output(['service', 'radvd', 'restart']) sp.check_output(["service", "radvd", "restart"])
except sp.CalledProcessError as err: except sp.CalledProcessError as err:
raise err.__class__('Cannot start/restart radvd service', err.cmd) from err raise err.__class__(
"Cannot start/restart radvd service", err.cmd
) from err

83
ucloud/imagescanner/main.py
View File

@ -9,7 +9,13 @@ from ucloud.imagescanner import logger
def qemu_img_type(path): def qemu_img_type(path):
qemu_img_info_command = ["qemu-img", "info", "--output", "json", path] qemu_img_info_command = [
"qemu-img",
"info",
"--output",
"json",
path,
]
try: try:
qemu_img_info = sp.check_output(qemu_img_info_command) qemu_img_info = sp.check_output(qemu_img_info_command)
except Exception as e: except Exception as e:
@ -22,32 +28,57 @@ def qemu_img_type(path):
def main(): def main():
# We want to get images entries that requests images to be created # We want to get images entries that requests images to be created
images = shared.etcd_client.get_prefix(settings['etcd']['image_prefix'], value_in_json=True) images = shared.etcd_client.get_prefix(
images_to_be_created = list(filter(lambda im: im.value['status'] == 'TO_BE_CREATED', images)) settings["etcd"]["image_prefix"], value_in_json=True
)
images_to_be_created = list(
filter(lambda im: im.value["status"] == "TO_BE_CREATED", images)
)
for image in images_to_be_created: for image in images_to_be_created:
try: try:
image_uuid = image.key.split('/')[-1] image_uuid = image.key.split("/")[-1]
image_owner = image.value['owner'] image_owner = image.value["owner"]
image_filename = image.value['filename'] image_filename = image.value["filename"]
image_store_name = image.value['store_name'] image_store_name = image.value["store_name"]
image_full_path = join_path(settings['storage']['file_dir'], image_owner, image_filename) image_full_path = join_path(
settings["storage"]["file_dir"],
image_owner,
image_filename,
)
image_stores = shared.etcd_client.get_prefix(settings['etcd']['image_store_prefix'], image_stores = shared.etcd_client.get_prefix(
value_in_json=True) settings["etcd"]["image_store_prefix"],
user_image_store = next(filter( value_in_json=True,
lambda s, store_name=image_store_name: s.value["name"] == store_name, )
image_stores user_image_store = next(
)) filter(
lambda s, store_name=image_store_name: s.value[
"name"
]
== store_name,
image_stores,
)
)
image_store_pool = user_image_store.value['attributes']['pool'] image_store_pool = user_image_store.value["attributes"][
"pool"
]
except Exception as e: except Exception as e:
logger.exception(e) logger.exception(e)
else: else:
# At least our basic data is available # At least our basic data is available
qemu_img_convert_command = ["qemu-img", "convert", "-f", "qcow2", qemu_img_convert_command = [
"-O", "raw", image_full_path, "image.raw"] "qemu-img",
"convert",
"-f",
"qcow2",
"-O",
"raw",
image_full_path,
"image.raw",
]
if qemu_img_type(image_full_path) == "qcow2": if qemu_img_type(image_full_path) == "qcow2":
try: try:
@ -55,16 +86,20 @@ def main():
sp.check_output(qemu_img_convert_command,) sp.check_output(qemu_img_convert_command,)
except sp.CalledProcessError: except sp.CalledProcessError:
logger.exception('Image convertion from .qcow2 to .raw failed.') logger.exception(
"Image convertion from .qcow2 to .raw failed."
)
else: else:
# Import and Protect # Import and Protect
r_status = shared.storage_handler.import_image(src="image.raw", r_status = shared.storage_handler.import_image(
dest=image_uuid, src="image.raw", dest=image_uuid, protect=True
protect=True) )
if r_status: if r_status:
# Everything is successfully done # Everything is successfully done
image.value["status"] = "CREATED" image.value["status"] = "CREATED"
shared.etcd_client.put(image.key, json.dumps(image.value)) shared.etcd_client.put(
image.key, json.dumps(image.value)
)
finally: finally:
try: try:
os.remove("image.raw") os.remove("image.raw")
@ -74,7 +109,9 @@ def main():
else: else:
# The user provided image is either not found or of invalid format # The user provided image is either not found or of invalid format
image.value["status"] = "INVALID_IMAGE" image.value["status"] = "INVALID_IMAGE"
shared.etcd_client.put(image.key, json.dumps(image.value)) shared.etcd_client.put(
image.key, json.dumps(image.value)
)
if __name__ == "__main__": if __name__ == "__main__":

48
ucloud/metadata/main.py
View File

@ -21,33 +21,39 @@ def handle_exception(e):
return e return e
# now you're handling non-HTTP exceptions only # now you're handling non-HTTP exceptions only
return {'message': 'Server Error'}, 500 return {"message": "Server Error"}, 500
def get_vm_entry(mac_addr): def get_vm_entry(mac_addr):
return next(filter(lambda vm: mac_addr in list(zip(*vm.network))[1], shared.vm_pool.vms), None) return next(
filter(
lambda vm: mac_addr in list(zip(*vm.network))[1],
shared.vm_pool.vms,
),
None,
)
# https://stackoverflow.com/questions/37140846/how-to-convert-ipv6-link-local-address-to-mac-address-in-python # https://stackoverflow.com/questions/37140846/how-to-convert-ipv6-link-local-address-to-mac-address-in-python
def ipv62mac(ipv6): def ipv62mac(ipv6):
# remove subnet info if given # remove subnet info if given
subnet_index = ipv6.find('/') subnet_index = ipv6.find("/")
if subnet_index != -1: if subnet_index != -1:
ipv6 = ipv6[:subnet_index] ipv6 = ipv6[:subnet_index]
ipv6_parts = ipv6.split(':') ipv6_parts = ipv6.split(":")
mac_parts = list() mac_parts = list()
for ipv6_part in ipv6_parts[-4:]: for ipv6_part in ipv6_parts[-4:]:
while len(ipv6_part) < 4: while len(ipv6_part) < 4:
ipv6_part = '0' + ipv6_part ipv6_part = "0" + ipv6_part
mac_parts.append(ipv6_part[:2]) mac_parts.append(ipv6_part[:2])
mac_parts.append(ipv6_part[-2:]) mac_parts.append(ipv6_part[-2:])
# modify parts to match MAC value # modify parts to match MAC value
mac_parts[0] = '%02x' % (int(mac_parts[0], 16) ^ 2) mac_parts[0] = "%02x" % (int(mac_parts[0], 16) ^ 2)
del mac_parts[4] del mac_parts[4]
del mac_parts[3] del mac_parts[3]
return ':'.join(mac_parts) return ":".join(mac_parts)
class Root(Resource): class Root(Resource):
@ -56,19 +62,27 @@ class Root(Resource):
data = get_vm_entry(ipv62mac(request.remote_addr)) data = get_vm_entry(ipv62mac(request.remote_addr))
if not data: if not data:
return {'message': 'Metadata for such VM does not exists.'}, 404 return (
{"message": "Metadata for such VM does not exists."},
404,
)
else: else:
etcd_key = os.path.join(settings['etcd']['user_prefix'], etcd_key = os.path.join(
data.value['owner_realm'], settings["etcd"]["user_prefix"],
data.value['owner'], 'key') data.value["owner_realm"],
etcd_entry = shared.etcd_client.get_prefix(etcd_key, value_in_json=True) data.value["owner"],
"key",
)
etcd_entry = shared.etcd_client.get_prefix(
etcd_key, value_in_json=True
)
user_personal_ssh_keys = [key.value for key in etcd_entry] user_personal_ssh_keys = [key.value for key in etcd_entry]
data.value['metadata']['ssh-keys'] += user_personal_ssh_keys data.value["metadata"]["ssh-keys"] += user_personal_ssh_keys
return data.value['metadata'], 200 return data.value["metadata"], 200
@staticmethod @staticmethod
def post(): def post():
return {'message': 'Previous Implementation is deprecated.'} return {"message": "Previous Implementation is deprecated."}
# data = etcd_client.get("/v1/metadata/{}".format(request.remote_addr), value_in_json=True) # data = etcd_client.get("/v1/metadata/{}".format(request.remote_addr), value_in_json=True)
# print(data) # print(data)
# if data: # if data:
@ -94,12 +108,12 @@ class Root(Resource):
# data, value_in_json=True) # data, value_in_json=True)
api.add_resource(Root, '/') api.add_resource(Root, "/")
def main(): def main():
app.run(debug=True, host="::", port="80") app.run(debug=True, host="::", port="80")
if __name__ == '__main__': if __name__ == "__main__":
main() main()

2
ucloud/scheduler/__init__.py
View File

@ -1,3 +1,3 @@
import logging import logging
logger = logging.getLogger(__name__) logger = logging.getLogger(__name__)

50
ucloud/scheduler/helper.py
View File

@ -24,17 +24,35 @@ def remaining_resources(host_specs, vms_specs):
for component in _vms_specs: for component in _vms_specs:
if isinstance(_vms_specs[component], str): if isinstance(_vms_specs[component], str):
_vms_specs[component] = int(bitmath.parse_string_unsafe(_vms_specs[component]).to_MB()) _vms_specs[component] = int(
bitmath.parse_string_unsafe(
_vms_specs[component]
).to_MB()
)
elif isinstance(_vms_specs[component], list): elif isinstance(_vms_specs[component], list):
_vms_specs[component] = map(lambda x: int(bitmath.parse_string_unsafe(x).to_MB()), _vms_specs[component]) _vms_specs[component] = map(
_vms_specs[component] = reduce(lambda x, y: x + y, _vms_specs[component], 0) lambda x: int(bitmath.parse_string_unsafe(x).to_MB()),
_vms_specs[component],
)
_vms_specs[component] = reduce(
lambda x, y: x + y, _vms_specs[component], 0
)
for component in _remaining: for component in _remaining:
if isinstance(_remaining[component], str): if isinstance(_remaining[component], str):
_remaining[component] = int(bitmath.parse_string_unsafe(_remaining[component]).to_MB()) _remaining[component] = int(
bitmath.parse_string_unsafe(
_remaining[component]
).to_MB()
)
elif isinstance(_remaining[component], list): elif isinstance(_remaining[component], list):
_remaining[component] = map(lambda x: int(bitmath.parse_string_unsafe(x).to_MB()), _remaining[component]) _remaining[component] = map(
_remaining[component] = reduce(lambda x, y: x + y, _remaining[component], 0) lambda x: int(bitmath.parse_string_unsafe(x).to_MB()),
_remaining[component],
)
_remaining[component] = reduce(
lambda x, y: x + y, _remaining[component], 0
)
_remaining.subtract(_vms_specs) _remaining.subtract(_vms_specs)
@ -59,11 +77,15 @@ def get_suitable_host(vm_specs, hosts=None):
running_vms_specs = [vm.specs for vm in vms] running_vms_specs = [vm.specs for vm in vms]
# Accumulate all of their combined specs # Accumulate all of their combined specs
running_vms_accumulated_specs = accumulated_specs(running_vms_specs) running_vms_accumulated_specs = accumulated_specs(
running_vms_specs
)
# Find out remaining resources after # Find out remaining resources after
# host_specs - already running vm_specs # host_specs - already running vm_specs
remaining = remaining_resources(host.specs, running_vms_accumulated_specs) remaining = remaining_resources(
host.specs, running_vms_accumulated_specs
)
# Find out remaining - new_vm_specs # Find out remaining - new_vm_specs
remaining = remaining_resources(remaining, vm_specs) remaining = remaining_resources(remaining, vm_specs)
@ -95,7 +117,7 @@ def dead_host_mitigation(dead_hosts_keys):
vms_hosted_on_dead_host = shared.vm_pool.by_host(host_key) vms_hosted_on_dead_host = shared.vm_pool.by_host(host_key)
for vm in vms_hosted_on_dead_host: for vm in vms_hosted_on_dead_host:
vm.status = 'UNKNOWN' vm.status = "UNKNOWN"
shared.vm_pool.put(vm) shared.vm_pool.put(vm)
shared.host_pool.put(host) shared.host_pool.put(host)
@ -104,10 +126,12 @@ def assign_host(vm):
vm.hostname = get_suitable_host(vm.specs) vm.hostname = get_suitable_host(vm.specs)
shared.vm_pool.put(vm) shared.vm_pool.put(vm)
r = RequestEntry.from_scratch(type=RequestType.StartVM, r = RequestEntry.from_scratch(
uuid=vm.uuid, type=RequestType.StartVM,
hostname=vm.hostname, uuid=vm.uuid,
request_prefix=settings['etcd']['request_prefix']) hostname=vm.hostname,
request_prefix=settings["etcd"]["request_prefix"],
)
shared.request_pool.put(r) shared.request_pool.put(r)
vm.log.append("VM scheduled for starting") vm.log.append("VM scheduled for starting")

49
ucloud/scheduler/main.py
View File

@ -7,8 +7,13 @@
from ucloud.common.request import RequestEntry, RequestType from ucloud.common.request import RequestEntry, RequestType
from ucloud.shared import shared from ucloud.shared import shared
from ucloud.settings import settings from ucloud.settings import settings
from .helper import (get_suitable_host, dead_host_mitigation, dead_host_detection, from .helper import (
assign_host, NoSuitableHostFound) get_suitable_host,
dead_host_mitigation,
dead_host_detection,
assign_host,
NoSuitableHostFound,
)
from . import logger from . import logger
@ -16,8 +21,14 @@ def main():
pending_vms = [] pending_vms = []
for request_iterator in [ for request_iterator in [
shared.etcd_client.get_prefix(settings['etcd']['request_prefix'], value_in_json=True), shared.etcd_client.get_prefix(
shared.etcd_client.watch_prefix(settings['etcd']['request_prefix'], timeout=5, value_in_json=True), settings["etcd"]["request_prefix"], value_in_json=True
),
shared.etcd_client.watch_prefix(
settings["etcd"]["request_prefix"],
timeout=5,
value_in_json=True,
),
]: ]:
for request_event in request_iterator: for request_event in request_iterator:
request_entry = RequestEntry(request_event) request_entry = RequestEntry(request_event)
@ -41,25 +52,39 @@ def main():
# on our behalf. # on our behalf.
while pending_vms: while pending_vms:
pending_vm_entry = pending_vms.pop() pending_vm_entry = pending_vms.pop()
r = RequestEntry.from_scratch(type="ScheduleVM", r = RequestEntry.from_scratch(
uuid=pending_vm_entry.uuid, type="ScheduleVM",
hostname=pending_vm_entry.hostname, uuid=pending_vm_entry.uuid,
request_prefix=settings['etcd']['request_prefix']) hostname=pending_vm_entry.hostname,
request_prefix=settings["etcd"][
"request_prefix"
],
)
shared.request_pool.put(r) shared.request_pool.put(r)
elif request_entry.type == RequestType.ScheduleVM: elif request_entry.type == RequestType.ScheduleVM:
logger.debug("%s, %s", request_entry.key, request_entry.value) logger.debug(
"%s, %s", request_entry.key, request_entry.value
)
vm_entry = shared.vm_pool.get(request_entry.uuid) vm_entry = shared.vm_pool.get(request_entry.uuid)
if vm_entry is None: if vm_entry is None:
logger.info("Trying to act on {} but it is deleted".format(request_entry.uuid)) logger.info(
"Trying to act on {} but it is deleted".format(
request_entry.uuid
)
)
continue continue
shared.etcd_client.client.delete(request_entry.key) # consume Request shared.etcd_client.client.delete(
request_entry.key
) # consume Request
try: try:
assign_host(vm_entry) assign_host(vm_entry)
except NoSuitableHostFound: except NoSuitableHostFound:
vm_entry.add_log("Can't schedule VM. No Resource Left.") vm_entry.add_log(
"Can't schedule VM. No Resource Left."
)
shared.vm_pool.put(vm_entry) shared.vm_pool.put(vm_entry)
pending_vms.append(vm_entry) pending_vms.append(vm_entry)

41
ucloud/scheduler/tests/test_basics.py
View File

@ -70,9 +70,15 @@ class TestFunctions(unittest.TestCase):
"last_heartbeat": datetime.utcnow().isoformat(), "last_heartbeat": datetime.utcnow().isoformat(),
} }
with self.client.client.lock("lock"): with self.client.client.lock("lock"):
self.client.put(f"{self.host_prefix}/1", host1, value_in_json=True) self.client.put(
self.client.put(f"{self.host_prefix}/2", host2, value_in_json=True) f"{self.host_prefix}/1", host1, value_in_json=True
self.client.put(f"{self.host_prefix}/3", host3, value_in_json=True) )
self.client.put(
f"{self.host_prefix}/2", host2, value_in_json=True
)
self.client.put(
f"{self.host_prefix}/3", host3, value_in_json=True
)
def create_vms(self): def create_vms(self):
vm1 = json.dumps( vm1 = json.dumps(
@ -146,15 +152,17 @@ class TestFunctions(unittest.TestCase):
{"cpu": 8, "ram": 32}, {"cpu": 8, "ram": 32},
] ]
self.assertEqual( self.assertEqual(
accumulated_specs(vms), {"ssd": 10, "cpu": 16, "ram": 48, "hdd": 10} accumulated_specs(vms),
{"ssd": 10, "cpu": 16, "ram": 48, "hdd": 10},
) )
def test_remaining_resources(self): def test_remaining_resources(self):
host_specs = {"ssd": 10, "cpu": 16, "ram": 48, "hdd": 10} host_specs = {"ssd": 10, "cpu": 16, "ram": 48, "hdd": 10}
vms_specs = {"ssd": 10, "cpu": 32, "ram": 12, "hdd": 0} vms_specs = {"ssd": 10, "cpu": 32, "ram": 12, "hdd": 0}
resultant_specs = {"ssd": 0, "cpu": -16, "ram": 36, "hdd": 10} resultant_specs = {"ssd": 0, "cpu": -16, "ram": 36, "hdd": 10}
self.assertEqual(remaining_resources(host_specs, vms_specs), self.assertEqual(
resultant_specs) remaining_resources(host_specs, vms_specs), resultant_specs
)
def test_vmpool(self): def test_vmpool(self):
self.p.join(1) self.p.join(1)
@ -167,7 +175,12 @@ class TestFunctions(unittest.TestCase):
f"{self.vm_prefix}/1", f"{self.vm_prefix}/1",
{ {
"owner": "meow", "owner": "meow",
"specs": {"cpu": 4, "ram": 8, "hdd": 100, "sdd": 256}, "specs": {
"cpu": 4,
"ram": 8,
"hdd": 100,
"sdd": 256,
},
"hostname": f"{self.host_prefix}/3", "hostname": f"{self.host_prefix}/3",
"status": "SCHEDULED_DEPLOY", "status": "SCHEDULED_DEPLOY",
}, },
@ -182,7 +195,12 @@ class TestFunctions(unittest.TestCase):
f"{self.vm_prefix}/7", f"{self.vm_prefix}/7",
{ {
"owner": "meow", "owner": "meow",
"specs": {"cpu": 10, "ram": 22, "hdd": 146, "sdd": 0}, "specs": {
"cpu": 10,
"ram": 22,
"hdd": 146,
"sdd": 0,
},
"hostname": "", "hostname": "",
"status": "REQUESTED_NEW", "status": "REQUESTED_NEW",
}, },
@ -197,7 +215,12 @@ class TestFunctions(unittest.TestCase):
f"{self.vm_prefix}/7", f"{self.vm_prefix}/7",
{ {
"owner": "meow", "owner": "meow",
"specs": {"cpu": 10, "ram": 22, "hdd": 146, "sdd": 0}, "specs": {
"cpu": 10,
"ram": 22,
"hdd": 146,
"sdd": 0,
},
"hostname": "", "hostname": "",
"status": "REQUESTED_NEW", "status": "REQUESTED_NEW",
}, },

30
ucloud/scheduler/tests/test_dead_host_mechanism.py
View File

@ -6,11 +6,7 @@ from os.path import dirname
BASE_DIR = dirname(dirname(__file__)) BASE_DIR = dirname(dirname(__file__))
sys.path.insert(0, BASE_DIR) sys.path.insert(0, BASE_DIR)
from main import ( from main import dead_host_detection, dead_host_mitigation, config
dead_host_detection,
dead_host_mitigation,
config
)
class TestDeadHostMechanism(unittest.TestCase): class TestDeadHostMechanism(unittest.TestCase):
@ -52,13 +48,23 @@ class TestDeadHostMechanism(unittest.TestCase):
"last_heartbeat": datetime(2011, 1, 1).isoformat(), "last_heartbeat": datetime(2011, 1, 1).isoformat(),
} }
with self.client.client.lock("lock"): with self.client.client.lock("lock"):
self.client.put(f"{self.host_prefix}/1", host1, value_in_json=True) self.client.put(
self.client.put(f"{self.host_prefix}/2", host2, value_in_json=True) f"{self.host_prefix}/1", host1, value_in_json=True
self.client.put(f"{self.host_prefix}/3", host3, value_in_json=True) )
self.client.put(f"{self.host_prefix}/4", host4, value_in_json=True) self.client.put(
f"{self.host_prefix}/2", host2, value_in_json=True
)
self.client.put(
f"{self.host_prefix}/3", host3, value_in_json=True
)
self.client.put(
f"{self.host_prefix}/4", host4, value_in_json=True
)
def test_dead_host_detection(self): def test_dead_host_detection(self):
hosts = self.client.get_prefix(self.host_prefix, value_in_json=True) hosts = self.client.get_prefix(
self.host_prefix, value_in_json=True
)
deads = dead_host_detection(hosts) deads = dead_host_detection(hosts)
self.assertEqual(deads, ["/test/host/2", "/test/host/3"]) self.assertEqual(deads, ["/test/host/2", "/test/host/3"])
return deads return deads
@ -66,7 +72,9 @@ class TestDeadHostMechanism(unittest.TestCase):
def test_dead_host_mitigation(self): def test_dead_host_mitigation(self):
deads = self.test_dead_host_detection() deads = self.test_dead_host_detection()
dead_host_mitigation(self.client, deads) dead_host_mitigation(self.client, deads)
hosts = self.client.get_prefix(self.host_prefix, value_in_json=True) hosts = self.client.get_prefix(
self.host_prefix, value_in_json=True
)
deads = dead_host_detection(hosts) deads = dead_host_detection(hosts)
self.assertEqual(deads, []) self.assertEqual(deads, [])

82
ucloud/settings/__init__.py
View File

@ -14,18 +14,22 @@ class CustomConfigParser(configparser.RawConfigParser):
result = super().__getitem__(key) result = super().__getitem__(key)
except KeyError as err: except KeyError as err:
raise KeyError( raise KeyError(
'Key \'{}\' not found in configuration. Make sure you configure ucloud.'.format(key) "Key '{}' not found in configuration. Make sure you configure ucloud.".format(
key
)
) from err ) from err
else: else:
return result return result
class Settings(object): class Settings(object):
def __init__(self, config_key='/uncloud/config/'): def __init__(self, config_key="/uncloud/config/"):
conf_name = 'ucloud.conf' conf_name = "ucloud.conf"
conf_dir = os.environ.get('UCLOUD_CONF_DIR', os.path.expanduser('~/ucloud/')) conf_dir = os.environ.get(
"UCLOUD_CONF_DIR", os.path.expanduser("~/ucloud/")
)
self.config_file = os.path.join(conf_dir, conf_name) self.config_file = os.path.join(conf_dir, conf_name)
self.config_parser = CustomConfigParser(allow_no_value=True) self.config_parser = CustomConfigParser(allow_no_value=True)
self.config_key = config_key self.config_key = config_key
@ -33,43 +37,55 @@ class Settings(object):
try: try:
self.config_parser.read(self.config_file) self.config_parser.read(self.config_file)
except Exception as err: except Exception as err:
logger.error('%s', err) logger.error("%s", err)
def get_etcd_client(self): def get_etcd_client(self):
args = tuple() args = tuple()
try: try:
kwargs = { kwargs = {
'host': self.config_parser.get('etcd', 'url'), "host": self.config_parser.get("etcd", "url"),
'port': self.config_parser.get('etcd', 'port'), "port": self.config_parser.get("etcd", "port"),
'ca_cert': self.config_parser.get('etcd', 'ca_cert'), "ca_cert": self.config_parser.get("etcd", "ca_cert"),
'cert_cert': self.config_parser.get('etcd', 'cert_cert'), "cert_cert": self.config_parser.get(
'cert_key': self.config_parser.get('etcd', 'cert_key') "etcd", "cert_cert"
),
"cert_key": self.config_parser.get("etcd", "cert_key"),
} }
except configparser.Error as err: except configparser.Error as err:
raise configparser.Error('{} in config file {}'.format(err.message, self.config_file)) from err raise configparser.Error(
"{} in config file {}".format(
err.message, self.config_file
)
) from err
else: else:
try: try:
wrapper = Etcd3Wrapper(*args, **kwargs) wrapper = Etcd3Wrapper(*args, **kwargs)
except Exception as err: except Exception as err:
logger.error('etcd connection not successfull. Please check your config file.' logger.error(
'\nDetails: %s\netcd connection parameters: %s', err, kwargs) "etcd connection not successfull. Please check your config file."
"\nDetails: %s\netcd connection parameters: %s",
err,
kwargs,
)
sys.exit(1) sys.exit(1)
else: else:
return wrapper return wrapper
def read_internal_values(self): def read_internal_values(self):
self.config_parser.read_dict({ self.config_parser.read_dict(
'etcd': { {
'file_prefix': '/files/', "etcd": {
'host_prefix': '/hosts/', "file_prefix": "/files/",
'image_prefix': '/images/', "host_prefix": "/hosts/",
'image_store_prefix': '/imagestore/', "image_prefix": "/images/",
'network_prefix': '/networks/', "image_store_prefix": "/imagestore/",
'request_prefix': '/requests/', "network_prefix": "/networks/",
'user_prefix': '/users/', "request_prefix": "/requests/",
'vm_prefix': '/vms/', "user_prefix": "/users/",
"vm_prefix": "/vms/",
}
} }
}) )
def read_config_file_values(self, config_file): def read_config_file_values(self, config_file):
try: try:
@ -77,18 +93,26 @@ class Settings(object):
with open(config_file, "r") as config_file_handle: with open(config_file, "r") as config_file_handle:
self.config_parser.read_file(config_file_handle) self.config_parser.read_file(config_file_handle)
except FileNotFoundError: except FileNotFoundError:
sys.exit('Configuration file {} not found!'.format(config_file)) sys.exit(
"Configuration file {} not found!".format(config_file)
)
except Exception as err: except Exception as err:
logger.exception(err) logger.exception(err)
sys.exit("Error occurred while reading configuration file") sys.exit("Error occurred while reading configuration file")
def read_values_from_etcd(self): def read_values_from_etcd(self):
etcd_client = self.get_etcd_client() etcd_client = self.get_etcd_client()
config_from_etcd = etcd_client.get(self.config_key, value_in_json=True) config_from_etcd = etcd_client.get(
self.config_key, value_in_json=True
)
if config_from_etcd: if config_from_etcd:
self.config_parser.read_dict(config_from_etcd.value) self.config_parser.read_dict(config_from_etcd.value)
else: else:
raise KeyError("Key '{}' not found in etcd. Please configure ucloud.".format(self.config_key)) raise KeyError(
"Key '{}' not found in etcd. Please configure ucloud.".format(
self.config_key
)
)
def __getitem__(self, key): def __getitem__(self, key):
self.read_values_from_etcd() self.read_values_from_etcd()

10
ucloud/shared/__init__.py
View File

@ -12,15 +12,19 @@ class Shared:
@property @property
def host_pool(self): def host_pool(self):
return HostPool(self.etcd_client, settings['etcd']['host_prefix']) return HostPool(
self.etcd_client, settings["etcd"]["host_prefix"]
)
@property @property
def vm_pool(self): def vm_pool(self):
return VmPool(self.etcd_client, settings['etcd']['vm_prefix']) return VmPool(self.etcd_client, settings["etcd"]["vm_prefix"])
@property @property
def request_pool(self): def request_pool(self):
return RequestPool(self.etcd_client, settings['etcd']['request_prefix']) return RequestPool(
self.etcd_client, settings["etcd"]["request_prefix"]
)
@property @property
def storage_handler(self): def storage_handler(self):

185
ucloud/vmm/__init__.py
View File

@ -37,7 +37,9 @@ class VMQMPHandles:
self.sock.close() self.sock.close()
if exc_type: if exc_type:
logger.error('Couldn\'t get handle for VM.', exc_type, exc_val, exc_tb) logger.error(
"Couldn't get handle for VM.", exc_type, exc_val, exc_tb
)
raise exc_type("Couldn't get handle for VM.") from exc_type raise exc_type("Couldn't get handle for VM.") from exc_type
@ -54,29 +56,46 @@ class TransferVM(Process):
with suppress(FileNotFoundError): with suppress(FileNotFoundError):
os.remove(self.src_sock_path) os.remove(self.src_sock_path)
command = ['ssh', '-nNT', '-L', '{}:{}'.format(self.src_sock_path, self.dest_sock_path), command = [
'root@{}'.format(self.host)] "ssh",
"-nNT",
"-L",
"{}:{}".format(self.src_sock_path, self.dest_sock_path),
"root@{}".format(self.host),
]
try: try:
p = sp.Popen(command) p = sp.Popen(command)
except Exception as e: except Exception as e:
logger.error('Couldn\' forward unix socks over ssh.', exc_info=e) logger.error(
"Couldn' forward unix socks over ssh.", exc_info=e
)
else: else:
time.sleep(2) time.sleep(2)
vmm = VMM() vmm = VMM()
logger.debug('Executing: ssh forwarding command: %s', command) logger.debug(
vmm.execute_command(self.src_uuid, command='migrate', "Executing: ssh forwarding command: %s", command
arguments={'uri': 'unix:{}'.format(self.src_sock_path)}) )
vmm.execute_command(
self.src_uuid,
command="migrate",
arguments={"uri": "unix:{}".format(self.src_sock_path)},
)
while p.poll() is None: while p.poll() is None:
success, output = vmm.execute_command(self.src_uuid, command='query-migrate') success, output = vmm.execute_command(
self.src_uuid, command="query-migrate"
)
if success: if success:
status = output['return']['status'] status = output["return"]["status"]
if status != 'active':
print('Migration Status: ', status) if status != "active":
print("Migration Status: ", status)
if status == "completed":
vmm.stop(self.src_uuid)
return return
else: else:
print('Migration Status: ', status) print("Migration Status: ", status)
else: else:
return return
time.sleep(0.2) time.sleep(0.2)
@ -84,18 +103,29 @@ class TransferVM(Process):
class VMM: class VMM:
# Virtual Machine Manager # Virtual Machine Manager
def __init__(self, qemu_path='/usr/bin/qemu-system-x86_64', def __init__(
vmm_backend=os.path.expanduser('~/ucloud/vmm/')): self,
qemu_path="/usr/bin/qemu-system-x86_64",
vmm_backend=os.path.expanduser("~/ucloud/vmm/"),
):
self.qemu_path = qemu_path self.qemu_path = qemu_path
self.vmm_backend = vmm_backend self.vmm_backend = vmm_backend
self.socket_dir = os.path.join(self.vmm_backend, 'sock') self.socket_dir = os.path.join(self.vmm_backend, "sock")
if not os.path.isdir(self.vmm_backend): if not os.path.isdir(self.vmm_backend):
logger.info('{} does not exists. Creating it...'.format(self.vmm_backend)) logger.info(
"{} does not exists. Creating it...".format(
self.vmm_backend
)
)
os.makedirs(self.vmm_backend, exist_ok=True) os.makedirs(self.vmm_backend, exist_ok=True)
if not os.path.isdir(self.socket_dir): if not os.path.isdir(self.socket_dir):
logger.info('{} does not exists. Creating it...'.format(self.socket_dir)) logger.info(
"{} does not exists. Creating it...".format(
self.socket_dir
)
)
os.makedirs(self.socket_dir, exist_ok=True) os.makedirs(self.socket_dir, exist_ok=True)
def is_running(self, uuid): def is_running(self, uuid):
@ -106,8 +136,12 @@ class VMM:
recv = sock.recv(4096) recv = sock.recv(4096)
except Exception as err: except Exception as err:
# unix sock doesn't exists or it is closed # unix sock doesn't exists or it is closed
logger.debug('VM {} sock either don\' exists or it is closed. It mean VM is stopped.'.format(uuid), logger.debug(
exc_info=err) "VM {} sock either don' exists or it is closed. It mean VM is stopped.".format(
uuid
),
exc_info=err,
)
else: else:
# if we receive greetings from qmp it mean VM is running # if we receive greetings from qmp it mean VM is running
if len(recv) > 0: if len(recv) > 0:
@ -122,36 +156,67 @@ class VMM:
# start --> sucess? # start --> sucess?
migration_args = () migration_args = ()
if migration: if migration:
migration_args = ('-incoming', 'unix:{}'.format(os.path.join(self.socket_dir, uuid))) migration_args = (
"-incoming",
"unix:{}".format(os.path.join(self.socket_dir, uuid)),
)
if self.is_running(uuid): if self.is_running(uuid):
logger.warning('Cannot start VM. It is already running.') logger.warning("Cannot start VM. It is already running.")
else: else:
qmp_arg = ('-qmp', 'unix:{},server,nowait'.format(join_path(self.vmm_backend, uuid))) qmp_arg = (
vnc_arg = ('-vnc', 'unix:{}'.format(tempfile.NamedTemporaryFile().name)) "-qmp",
"unix:{},server,nowait".format(
join_path(self.vmm_backend, uuid)
),
)
vnc_arg = (
"-vnc",
"unix:{}".format(tempfile.NamedTemporaryFile().name),
)
command = ['sudo', '-p', 'Enter password to start VM {}: '.format(uuid), command = [
self.qemu_path, *args, *qmp_arg, *migration_args, *vnc_arg, '-daemonize'] "sudo",
"-p",
"Enter password to start VM {}: ".format(uuid),
self.qemu_path,
*args,
*qmp_arg,
*migration_args,
*vnc_arg,
"-daemonize",
]
try: try:
sp.check_output(command, stderr=sp.PIPE) sp.check_output(command, stderr=sp.PIPE)
except sp.CalledProcessError as err: except sp.CalledProcessError as err:
logger.exception('Error occurred while starting VM.\nDetail %s', err.stderr.decode('utf-8')) logger.exception(
"Error occurred while starting VM.\nDetail %s",
err.stderr.decode("utf-8"),
)
else: else:
with suppress(sp.CalledProcessError): with suppress(sp.CalledProcessError):
sp.check_output([ sp.check_output(
'sudo', '-p', [
'Enter password to correct permission for uncloud-vmm\'s directory', "sudo",
'chmod', '-R', 'o=rwx,g=rwx', self.vmm_backend "-p",
]) "Enter password to correct permission for uncloud-vmm's directory",
"chmod",
"-R",
"o=rwx,g=rwx",
self.vmm_backend,
]
)
# TODO: Find some good way to check whether the virtual machine is up and # TODO: Find some good way to check whether the virtual machine is up and
# running without relying on non-guarenteed ways. # running without relying on non-guarenteed ways.
for _ in range(10): for _ in range(10):
time.sleep(2) time.sleep(2)
status = self.get_status(uuid) status = self.get_status(uuid)
if status in ['running', 'inmigrate']: if status in ["running", "inmigrate"]:
return status return status
logger.warning('Timeout on VM\'s status. Shutting down VM %s', uuid) logger.warning(
"Timeout on VM's status. Shutting down VM %s", uuid
)
self.stop(uuid) self.stop(uuid)
# TODO: What should we do more. VM can still continue to run in background. # TODO: What should we do more. VM can still continue to run in background.
# If we have pid of vm we can kill it using OS. # If we have pid of vm we can kill it using OS.
@ -159,55 +224,73 @@ class VMM:
def execute_command(self, uuid, command, **kwargs): def execute_command(self, uuid, command, **kwargs):
# execute_command -> sucess?, output # execute_command -> sucess?, output
try: try:
with VMQMPHandles(os.path.join(self.vmm_backend, uuid)) as (sock_handle, file_handle): with VMQMPHandles(os.path.join(self.vmm_backend, uuid)) as (
command_to_execute = { sock_handle,
'execute': command, file_handle,
**kwargs ):
} command_to_execute = {"execute": command, **kwargs}
sock_handle.sendall(json.dumps(command_to_execute).encode('utf-8')) sock_handle.sendall(
json.dumps(command_to_execute).encode("utf-8")
)
output = file_handle.readline() output = file_handle.readline()
except Exception: except Exception:
logger.exception('Error occurred while executing command and getting valid output from qmp') logger.exception(
"Error occurred while executing command and getting valid output from qmp"
)
else: else:
try: try:
output = json.loads(output) output = json.loads(output)
except Exception: except Exception:
logger.exception('QMP Output isn\'t valid JSON. %s', output) logger.exception(
"QMP Output isn't valid JSON. %s", output
)
else: else:
return 'return' in output, output return "return" in output, output
return False, None return False, None
def stop(self, uuid): def stop(self, uuid):
success, output = self.execute_command(command='quit', uuid=uuid) success, output = self.execute_command(
command="quit", uuid=uuid
)
return success return success
def get_status(self, uuid): def get_status(self, uuid):
success, output = self.execute_command(command='query-status', uuid=uuid) success, output = self.execute_command(
command="query-status", uuid=uuid
)
if success: if success:
return output['return']['status'] return output["return"]["status"]
else: else:
# TODO: Think about this for a little more # TODO: Think about this for a little more
return 'STOPPED' return "STOPPED"
def discover(self): def discover(self):
vms = [ vms = [
uuid for uuid in os.listdir(self.vmm_backend) uuid
for uuid in os.listdir(self.vmm_backend)
if not isdir(join_path(self.vmm_backend, uuid)) if not isdir(join_path(self.vmm_backend, uuid))
] ]
return vms return vms
def get_vnc(self, uuid): def get_vnc(self, uuid):
success, output = self.execute_command(uuid, command='query-vnc') success, output = self.execute_command(
uuid, command="query-vnc"
)
if success: if success:
return output['return']['service'] return output["return"]["service"]
return None return None
def transfer(self, src_uuid, destination_sock_path, host): def transfer(self, src_uuid, destination_sock_path, host):
p = TransferVM(src_uuid, destination_sock_path, socket_dir=self.socket_dir, host=host) p = TransferVM(
src_uuid,
destination_sock_path,
socket_dir=self.socket_dir,
host=host,
)
p.start() p.start()
# TODO: the following method should clean things that went wrong # TODO: the following method should clean things that went wrong
# e.g If VM migration fails or didn't start for long time # e.g If VM migration fails or didn't start for long time
# i.e 15 minutes we should stop the waiting VM. # i.e 15 minutes we should stop the waiting VM.
def maintenace(self): def maintenace(self):
pass pass