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Fix issues in naming and few other things

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This commit is contained in:
ahmadbilalkhalid 2019-12-14 20:23:31 +05:00
commit 71279a968f
21 changed files with 274 additions and 281 deletions
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75
conf/ucloud.conf
View file

@ -1,60 +1,53 @@
# This section contains default values for all other sections
#
[DEFAULT]
AUTH_NAME = "replace me"
AUTH_SEED = "replace me"
AUTH_REALM = "replace me"
NETWORK_PREFIX = moo
OTP_VERIFY_ENDPOINT = verify/
[api]
NETWORK_PREFIX = foo
[otp]
server = https://otp.ungleich.ch/ungleichotp/
verify_endpoint = verify/
auth_name = replace_me
auth_realm = replace_me
auth_seed = replace_me
[network]
PREFIX_LENGTH = 64
PREFIX = 2001:db8::/48
prefix_length = 64
prefix = 2001:db8::/48
vxlan_phy_dev = eno1
[netbox]
NETBOX_URL = https://replace-me.example.com
NETBOX_TOKEN = replace me
url = https://replace-me.example.com
token = replace_me
[etcd]
ETCD_URL = localhost
ETCD_PORT = 2379
url = localhost
port = 2379
CA_CERT
CERT_CERT
CERT_KEY
ca_cert
cert_cert
cert_key
FILE_PREFIX = files
HOST_PREFIx = hosts
IMAGE_PREFIX = images
IMAGE_STORE_PREFIX = imagestore
NETWORK_PREFIX = networks
REQUEST_PREFIX = requests
USER_PREFIX = users
VM_PREFIX = vms
file_prefix = /files/
host_prefix = /hosts/
image_prefix = /images/
image_store_prefix = /imagestore/
network_prefix = /networks/
request_prefix = /requests/
user_prefix = /users/
vm_prefix = /vms/
[storage]
#values = filesystem, ceph
STORAGE_BACKEND =
backend = filesystem
# if STORAGE_BACKEND = filesystem
VM_DIR =
IMG_DIR =
vm_dir = /var/lib/ucloud/vms
image_dir = /var/lib/ucloud/images
# if STORAGE_BACKEND = ceph
CEPH_VM_POOL =
CEPH_IMG_POOL =
ceph_vm_pool = ssd
ceph_image_pool = ssd
# Importing uploaded files
FILE_DIR = /var/lib/ucloud/files
file_dir = /var/lib/ucloud/files
# For Migrating VMs over ssh/tcp
[ssh]
SSH_USERNAME =
SSH_PRIVATEKEY =
username
private_key_path

14
scripts/ucloud
View file

@ -5,11 +5,17 @@ import logging
import importlib
import sys
import os
import multiprocessing as mp
COMMANDS = ['api', 'scheduler', 'host', 'filescanner', 'imagescanner', 'metadata']
if __name__ == "__main__":
log = logging.getLogger("ucloud")
logging.basicConfig(level=logging.DEBUG,
format='%(pathname)s:%(lineno)d -- %(levelname)-8s %(message)s',
filename='/var/log/ucloud.log', filemode='a')
logger = logging.getLogger("ucloud")
arg_parser = argparse.ArgumentParser(prog='ucloud',
description='Open Source Cloud Management Software')
@ -22,12 +28,12 @@ if __name__ == "__main__":
os.environ['UCLOUD_CONF_DIR'] = args.conf_dir
try:
mp.set_start_method('spawn')
name = args.component
mod = importlib.import_module("ucloud.{}.main".format(name))
main = getattr(mod, "main")
main()
main(*args.component_args)
except Exception as e:
logging.exception(e)
logger.exception(e)
print(e)

9
setup.py
View file

@ -8,8 +8,8 @@ try:
version = ucloud.version.VERSION
except:
import subprocess
c = subprocess.run(["git", "describe"], capture_output=True)
version = c.stdout.decode("utf-8")
c = subprocess.check_output(['git', 'describe'])
version = c.decode("utf-8").strip()
setup(name='ucloud',
@ -28,8 +28,7 @@ setup(name='ucloud',
packages=find_packages(),
install_requires=[
'requests',
'python-decouple',
'flask',
'Flask',
'flask-restful',
'bitmath',
'pyotp',
@ -37,8 +36,8 @@ setup(name='ucloud',
'sphinx',
'pynetbox',
'sphinx-rtd-theme',
'etcd3_wrapper @ https://code.ungleich.ch/ungleich-public/etcd3_wrapper/repository/master/archive.tar.gz#egg=etcd3_wrapper',
'etcd3 @ https://github.com/kragniz/python-etcd3/tarball/master#egg=etcd3',
],
scripts=['scripts/ucloud'],
data_files=[('/etc/ucloud/', ['conf/ucloud.conf'])],
zip_safe=False)

2
ucloud/api/common_fields.py
View file

@ -47,6 +47,6 @@ class VmUUIDField(Field):
self.validation = self.vm_uuid_validation
def vm_uuid_validation(self):
r = etcd_client.get(os.path.join(config['api']['VM_PREFIX'], self.uuid))
r = etcd_client.get(os.path.join(config['etcd']['vm_prefix'], self.uuid))
if not r:
self.add_error("VM with uuid {} does not exists".format(self.uuid))

2
ucloud/api/create_image_store.py
View file

@ -13,4 +13,4 @@ data = {
"attributes": {"list": [], "key": [], "pool": "images"},
}
etcd_client.put(os.path.join(config['api']['IMAGE_STORE_PREFIX'], uuid4().hex), json.dumps(data))
etcd_client.put(os.path.join(config['etcd']['image_store_prefix'], uuid4().hex), json.dumps(data))

21
ucloud/api/helper.py
View file

@ -2,7 +2,7 @@ import binascii
import ipaddress
import random
import subprocess as sp
import logging
import requests
from pyotp import TOTP
@ -10,23 +10,28 @@ from pyotp import TOTP
from ucloud.config import vm_pool, config
logger = logging.getLogger("ucloud.api.helper")
def check_otp(name, realm, token):
try:
data = {
"auth_name": config['api']["AUTH_NAME"],
"auth_token": TOTP(config['api']["AUTH_SEED"]).now(),
"auth_realm": config['api']["AUTH_REALM"],
"auth_name": config['otp']['auth_name'],
"auth_token": TOTP(config['otp']['auth_seed']).now(),
"auth_realm": config['otp']['auth_realm'],
"name": name,
"realm": realm,
"token": token,
}
except binascii.Error:
except binascii.Error as err:
logger.error(
"Cannot compute OTP for seed: {}".format(config['otp']['auth_seed'])
)
return 400
response = requests.post(
"{OTP_SERVER}{OTP_VERIFY_ENDPOINT}".format(
OTP_SERVER=config['api']["OTP_SERVER"],
OTP_VERIFY_ENDPOINT=config['api']["OTP_VERIFY_ENDPOINT"]
OTP_SERVER=config['otp']['server'],
OTP_VERIFY_ENDPOINT=config['otp']['verify_endpoint']
),
json=data,
)
@ -80,7 +85,7 @@ def resolve_image_name(name, etcd_client):
except Exception:
raise ValueError("Image name not in correct format i.e {store_name}:{image_name}")
images = etcd_client.get_prefix(config['api']['IMAGE_PREFIX'], value_in_json=True)
images = etcd_client.get_prefix(config['etcd']['image_prefix'], value_in_json=True)
# Try to find image with name == image_name and store_name == store_name
try:

67
ucloud/api/main.py
View file

@ -10,7 +10,10 @@ from flask_restful import Resource, Api
from ucloud.common import counters
from ucloud.common.vm import VMStatus
from ucloud.common.request import RequestEntry, RequestType
from ucloud.config import (etcd_client, request_pool, vm_pool, host_pool, config, image_storage_handler)
from ucloud.config import (
etcd_client, request_pool, vm_pool,
host_pool, config, image_storage_handler
)
from . import schemas
from .helper import generate_mac, mac2ipv6
from . import logger
@ -28,7 +31,7 @@ class CreateVM(Resource):
validator = schemas.CreateVMSchema(data)
if validator.is_valid():
vm_uuid = uuid4().hex
vm_key = join_path(config['etcd']["VM_PREFIX"], vm_uuid)
vm_key = join_path(config['etcd']['vm_prefix'], vm_uuid)
specs = {
"cpu": validator.specs["cpu"],
"ram": validator.specs["ram"],
@ -56,7 +59,7 @@ class CreateVM(Resource):
# Create ScheduleVM Request
r = RequestEntry.from_scratch(
type=RequestType.ScheduleVM, uuid=vm_uuid,
request_prefix=config['etcd']["REQUEST_PREFIX"]
request_prefix=config['etcd']['request_prefix']
)
request_pool.put(r)
@ -71,7 +74,7 @@ class VmStatus(Resource):
validator = schemas.VMStatusSchema(data)
if validator.is_valid():
vm = vm_pool.get(
join_path(config['etcd']["VM_PREFIX"], data["uuid"])
join_path(config['etcd']['vm_prefix'], data["uuid"])
)
vm_value = vm.value.copy()
vm_value["ip"] = []
@ -79,7 +82,7 @@ class VmStatus(Resource):
network_name, mac, tap = network_mac_and_tap
network = etcd_client.get(
join_path(
config['etcd']["NETWORK_PREFIX"],
config['etcd']['network_prefix'],
data["name"],
network_name,
),
@ -100,7 +103,7 @@ class CreateImage(Resource):
validator = schemas.CreateImageSchema(data)
if validator.is_valid():
file_entry = etcd_client.get(
join_path(config['etcd']["FILE_PREFIX"], data["uuid"])
join_path(config['etcd']['file_prefix'], data["uuid"])
)
file_entry_value = json.loads(file_entry.value)
@ -113,7 +116,7 @@ class CreateImage(Resource):
"visibility": "public",
}
etcd_client.put(
join_path(config['etcd']["IMAGE_PREFIX"], data["uuid"]),
join_path(config['etcd']['image_prefix'], data["uuid"]),
json.dumps(image_entry_json),
)
@ -125,7 +128,7 @@ class ListPublicImages(Resource):
@staticmethod
def get():
images = etcd_client.get_prefix(
config['etcd']["IMAGE_PREFIX"], value_in_json=True
config['etcd']['image_prefix'], value_in_json=True
)
r = {
"images": []
@ -148,7 +151,7 @@ class VMAction(Resource):
if validator.is_valid():
vm_entry = vm_pool.get(
join_path(config['etcd']["VM_PREFIX"], data["uuid"])
join_path(config['etcd']['vm_prefix'], data["uuid"])
)
action = data["action"]
@ -172,7 +175,7 @@ class VMAction(Resource):
type="{}VM".format(action.title()),
uuid=data["uuid"],
hostname=vm_entry.hostname,
request_prefix=config['etcd']["REQUEST_PREFIX"]
request_prefix=config['etcd']['request_prefix']
)
request_pool.put(r)
return {"message": "VM {} Queued".format(action.title())}, 200
@ -193,10 +196,10 @@ class VMMigration(Resource):
type=RequestType.ScheduleVM,
uuid=vm.uuid,
destination=join_path(
config['etcd']["HOST_PREFIX"], validator.destination.value
config['etcd']['host_prefix'], validator.destination.value
),
migration=True,
request_prefix=config['etcd']["REQUEST_PREFIX"]
request_prefix=config['etcd']['request_prefix']
)
request_pool.put(r)
return {"message": "VM Migration Initialization Queued"}, 200
@ -212,7 +215,7 @@ class ListUserVM(Resource):
if validator.is_valid():
vms = etcd_client.get_prefix(
config['etcd']["VM_PREFIX"], value_in_json=True
config['etcd']['vm_prefix'], value_in_json=True
)
return_vms = []
user_vms = filter(lambda v: v.value["owner"] == data["name"], vms)
@ -246,7 +249,7 @@ class ListUserFiles(Resource):
if validator.is_valid():
files = etcd_client.get_prefix(
config['etcd']["FILE_PREFIX"], value_in_json=True
config['etcd']['file_prefix'], value_in_json=True
)
return_files = []
user_files = list(
@ -270,7 +273,7 @@ class CreateHost(Resource):
data = request.json
validator = schemas.CreateHostSchema(data)
if validator.is_valid():
host_key = join_path(config['etcd']["HOST_PREFIX"], uuid4().hex)
host_key = join_path(config['etcd']['host_prefix'], uuid4().hex)
host_entry = {
"specs": data["specs"],
"hostname": data["hostname"],
@ -309,7 +312,7 @@ class GetSSHKeys(Resource):
# {user_prefix}/{realm}/{name}/key/
etcd_key = join_path(
config['etcd']['USER_PREFIX'],
config['etcd']['user_prefix'],
data["realm"],
data["name"],
"key",
@ -326,7 +329,7 @@ class GetSSHKeys(Resource):
# {user_prefix}/{realm}/{name}/key/{key_name}
etcd_key = join_path(
config['etcd']['USER_PREFIX'],
config['etcd']['user_prefix'],
data["realm"],
data["name"],
"key",
@ -355,7 +358,7 @@ class AddSSHKey(Resource):
# {user_prefix}/{realm}/{name}/key/{key_name}
etcd_key = join_path(
config['etcd']["USER_PREFIX"],
config['etcd']['user_prefix'],
data["realm"],
data["name"],
"key",
@ -385,7 +388,7 @@ class RemoveSSHKey(Resource):
# {user_prefix}/{realm}/{name}/key/{key_name}
etcd_key = join_path(
config['etcd']["USER_PREFIX"],
config['etcd']['user_prefix'],
data["realm"],
data["name"],
"key",
@ -420,31 +423,35 @@ class CreateNetwork(Resource):
"type": data["type"],
}
if validator.user.value:
try:
nb = pynetbox.api(
url=config['netbox']["NETBOX_URL"],
token=config['netbox']["NETBOX_TOKEN"],
url=config['netbox']['url'],
token=config['netbox']['token'],
)
nb_prefix = nb.ipam.prefixes.get(
prefix=config['network']["PREFIX"]
prefix=config['network']['prefix']
)
prefix = nb_prefix.available_prefixes.create(
data={
"prefix_length": config['network']["PREFIX_LENGTH"],
"prefix_length": int(config['network']['prefix_length']),
"description": '{}\'s network "{}"'.format(
data["name"], data["network_name"]
),
"is_pool": True,
}
)
except Exception:
logger.exception("Exception occur while contacting netbox")
return {"message": "Error occured while creating network."}
else:
network_entry["ipv6"] = prefix["prefix"]
else:
network_entry["ipv6"] = "fd00::/64"
network_key = join_path(
config['network']["NETWORK_PREFIX"],
data["name"],
data["network_name"],
config['etcd']['network_prefix'],
data['name'],
data['network_name'],
)
etcd_client.put(network_key, network_entry, value_in_json=True)
return {"message": "Network successfully added."}
@ -460,7 +467,7 @@ class ListUserNetwork(Resource):
if validator.is_valid():
prefix = join_path(
config['network']["NETWORK_PREFIX"], data["name"]
config['etcd']['network_prefix'], data["name"]
)
networks = etcd_client.get_prefix(prefix, value_in_json=True)
user_networks = []
@ -496,7 +503,7 @@ api.add_resource(CreateNetwork, "/network/create")
def main():
image_stores = list(etcd_client.get_prefix(config['etcd']['IMAGE_STORE_PREFIX'], value_in_json=True))
image_stores = list(etcd_client.get_prefix(config['etcd']['image_store_prefix'], value_in_json=True))
if len(image_stores) == 0:
data = {
"is_public": True,
@ -506,7 +513,7 @@ def main():
"attributes": {"list": [], "key": [], "pool": "images"},
}
etcd_client.put(join_path(config['etcd']['IMAGE_STORE_PREFIX'], uuid4().hex), json.dumps(data))
etcd_client.put(join_path(config['etcd']['image_store_prefix'], uuid4().hex), json.dumps(data))
app.run(host="::", debug=True)

13
ucloud/api/schemas.py
View file

@ -22,7 +22,7 @@ import bitmath
from ucloud.common.host import HostStatus
from ucloud.common.vm import VMStatus
from ucloud.config import etcd_client, config, vm_pool, host_pool
from . import helper
from . import helper, logger
from .common_fields import Field, VmUUIDField
from .helper import check_otp, resolve_vm_name
@ -102,14 +102,14 @@ class CreateImageSchema(BaseSchema):
super().__init__(data, fields)
def file_uuid_validation(self):
file_entry = etcd_client.get(os.path.join(config['etcd']['FILE_PREFIX'], self.uuid.value))
file_entry = etcd_client.get(os.path.join(config['etcd']['file_prefix'], self.uuid.value))
if file_entry is None:
self.add_error(
"Image File with uuid '{}' Not Found".format(self.uuid.value)
)
def image_store_name_validation(self):
image_stores = list(etcd_client.get_prefix(config['etcd']['IMAGE_STORE_PREFIX']))
image_stores = list(etcd_client.get_prefix(config['etcd']['image_store_prefix']))
image_store = next(
filter(
@ -220,6 +220,7 @@ class CreateVMSchema(OTPSchema):
try:
image_uuid = helper.resolve_image_name(self.image.value, etcd_client)
except Exception as e:
logger.exception("Cannot resolve image name = %s", self.image.value)
self.add_error(str(e))
else:
self.image_uuid = image_uuid
@ -235,7 +236,7 @@ class CreateVMSchema(OTPSchema):
if _network:
for net in _network:
network = etcd_client.get(os.path.join(config['etcd']['NETWORK_PREFIX'],
network = etcd_client.get(os.path.join(config['etcd']['network_prefix'],
self.name.value,
net), value_in_json=True)
if not network:
@ -400,7 +401,7 @@ class VmMigrationSchema(OTPSchema):
if vm.status != VMStatus.running:
self.add_error("Can't migrate non-running VM")
if vm.hostname == os.path.join(config['etcd']['HOST_PREFIX'], self.destination.value):
if vm.hostname == os.path.join(config['etcd']['host_prefix'], self.destination.value):
self.add_error("Destination host couldn't be same as Source Host")
@ -442,7 +443,7 @@ class CreateNetwork(OTPSchema):
super().__init__(data, fields=fields)
def network_name_validation(self):
network = etcd_client.get(os.path.join(config['etcd']['NETWORK_PREFIX'],
network = etcd_client.get(os.path.join(config['etcd']['network_prefix'],
self.name.value,
self.network_name.value),
value_in_json=True)

2
ucloud/common/classes.py
View file

@ -1,4 +1,4 @@
from etcd3_wrapper import EtcdEntry
from .etcd_wrapper import EtcdEntry
class SpecificEtcdEntryBase:

2
ucloud/common/counters.py
View file

@ -1,4 +1,4 @@
from etcd3_wrapper import Etcd3Wrapper
from .etcd_wrapper import Etcd3Wrapper
def increment_etcd_counter(etcd_client: Etcd3Wrapper, key):

74
ucloud/common/etcd_wrapper.py Normal file
View file

@ -0,0 +1,74 @@
import etcd3
import json
import queue
import copy
from collections import namedtuple
PseudoEtcdMeta = namedtuple("PseudoEtcdMeta", ["key"])
class EtcdEntry:
# key: str
# value: str
def __init__(self, meta, value, value_in_json=False):
self.key = meta.key.decode("utf-8")
self.value = value.decode("utf-8")
if value_in_json:
self.value = json.loads(self.value)
class Etcd3Wrapper:
def __init__(self, *args, **kwargs):
self.client = etcd3.client(*args, **kwargs)
def get(self, *args, value_in_json=False, **kwargs):
_value, _key = self.client.get(*args, **kwargs)
if _key is None or _value is None:
return None
return EtcdEntry(_key, _value, value_in_json=value_in_json)
def put(self, *args, value_in_json=False, **kwargs):
_key, _value = args
if value_in_json:
_value = json.dumps(_value)
if not isinstance(_key, str):
_key = _key.decode("utf-8")
return self.client.put(_key, _value, **kwargs)
def get_prefix(self, *args, value_in_json=False, **kwargs):
r = self.client.get_prefix(*args, **kwargs)
for entry in r:
e = EtcdEntry(*entry[::-1], value_in_json=value_in_json)
if e.value:
yield e
def watch_prefix(self, key, timeout=0, value_in_json=False):
timeout_event = EtcdEntry(PseudoEtcdMeta(key=b"TIMEOUT"),
value=str.encode(json.dumps({"status": "TIMEOUT",
"type": "TIMEOUT"})),
value_in_json=value_in_json)
event_queue = queue.Queue()
def add_event_to_queue(event):
for e in event.events:
if e.value:
event_queue.put(EtcdEntry(e, e.value, value_in_json=value_in_json))
self.client.add_watch_prefix_callback(key, add_event_to_queue)
while True:
try:
while True:
v = event_queue.get(timeout=timeout)
yield v
except queue.Empty:
event_queue.put(copy.deepcopy(timeout_event))
class PsuedoEtcdEntry(EtcdEntry):
def __init__(self, key, value, value_in_json=False):
super().__init__(PseudoEtcdMeta(key=key.encode("utf-8")), value, value_in_json=value_in_json)

20
ucloud/common/helpers.py
View file

@ -6,21 +6,7 @@ import json
from ipaddress import ip_address
from os.path import join as join_path
def create_package_loggers(packages, base_path, mode="a"):
loggers = {}
for pkg in packages:
logger = logging.getLogger(pkg)
logger_handler = logging.FileHandler(
join_path(base_path, "{}.txt".format(pkg)),
mode=mode
)
logger.setLevel(logging.DEBUG)
logger_handler.setFormatter(logging.Formatter(fmt="%(asctime)s: %(levelname)s - %(message)s",
datefmt="%d-%b-%y %H:%M:%S"))
logger.addHandler(logger_handler)
loggers[pkg] = logger
from . import logger
# TODO: Should be removed as soon as migration
@ -35,7 +21,7 @@ def get_ipv4_address():
except socket.timeout:
address = "127.0.0.1"
except Exception as e:
logging.getLogger().exception(e)
logger.exception(e)
address = "127.0.0.1"
else:
address = s.getsockname()[0]
@ -49,6 +35,6 @@ def get_ipv6_address():
content = json.loads(r.content.decode("utf-8"))
ip = ip_address(content["ip"]).exploded
except Exception as e:
logging.exception(e)
logger.exception(e)
else:
return ip

3
ucloud/common/request.py
View file

@ -2,8 +2,7 @@ import json
from os.path import join
from uuid import uuid4
from etcd3_wrapper.etcd3_wrapper import PsuedoEtcdEntry
from .etcd_wrapper import PsuedoEtcdEntry
from .classes import SpecificEtcdEntryBase

144
ucloud/config.py
View file

@ -1,133 +1,53 @@
import configparser
import os
import logging
from ucloud.common.host import HostPool
from ucloud.common.request import RequestPool
from ucloud.common.vm import VmPool
from ucloud.common.storage_handlers import FileSystemBasedImageStorageHandler, CEPHBasedImageStorageHandler
from ucloud.common.etcd_wrapper import Etcd3Wrapper
# Replacing decouple inline
import configparser
import os
import os.path
import logging
log = logging.getLogger("ucloud.config")
conf_name = "ucloud.conf"
try:
conf_dir = os.environ["UCLOUD_CONF_DIR"]
except KeyError:
conf_dir = "/etc/ucloud"
log = logging.getLogger('ucloud.config')
conf_name = 'ucloud.conf'
conf_dir = os.environ.get('UCLOUD_CONF_DIR', '/etc/ucloud')
config_file = os.path.join(conf_dir, conf_name)
config = configparser.ConfigParser()
config = configparser.ConfigParser(allow_no_value=True)
try:
if os.access(config_file, os.R_OK):
config.read(config_file)
except FileNotFoundError:
log.warn("Configuration file not found - using defaults")
################################################################################
# ETCD3 support
import etcd3
import json
import queue
import copy
from collections import namedtuple
PseudoEtcdMeta = namedtuple("PseudoEtcdMeta", ["key"])
class EtcdEntry:
# key: str
# value: str
def __init__(self, meta, value, value_in_json=False):
self.key = meta.key.decode("utf-8")
self.value = value.decode("utf-8")
if value_in_json:
self.value = json.loads(self.value)
class Etcd3Wrapper:
def __init__(self, *args, **kwargs):
self.client = etcd3.client(*args, **kwargs)
def get(self, *args, value_in_json=False, **kwargs):
_value, _key = self.client.get(*args, **kwargs)
if _key is None or _value is None:
return None
return EtcdEntry(_key, _value, value_in_json=value_in_json)
def put(self, *args, value_in_json=False, **kwargs):
_key, _value = args
if value_in_json:
_value = json.dumps(_value)
if not isinstance(_key, str):
_key = _key.decode("utf-8")
return self.client.put(_key, _value, **kwargs)
def get_prefix(self, *args, value_in_json=False, **kwargs):
r = self.client.get_prefix(*args, **kwargs)
for entry in r:
e = EtcdEntry(*entry[::-1], value_in_json=value_in_json)
if e.value:
yield e
def watch_prefix(self, key, timeout=0, value_in_json=False):
timeout_event = EtcdEntry(PseudoEtcdMeta(key=b"TIMEOUT"),
value=str.encode(json.dumps({"status": "TIMEOUT",
"type": "TIMEOUT"})),
value_in_json=value_in_json)
event_queue = queue.Queue()
def add_event_to_queue(event):
for e in event.events:
if e.value:
event_queue.put(EtcdEntry(e, e.value, value_in_json=value_in_json))
self.client.add_watch_prefix_callback(key, add_event_to_queue)
while True:
try:
while True:
v = event_queue.get(timeout=timeout)
yield v
except queue.Empty:
event_queue.put(copy.deepcopy(timeout_event))
class PsuedoEtcdEntry(EtcdEntry):
def __init__(self, key, value, value_in_json=False):
super().__init__(PseudoEtcdMeta(key=key.encode("utf-8")), value, value_in_json=value_in_json)
else:
log.warning('Configuration file not found - using defaults')
etcd_wrapper_args = ()
etcd_wrapper_kwargs = {
'host': config['etcd']['ETCD_URL'],
'port': config['etcd']['ETCD_PORT'],
'ca_cert': config['etcd']['CA_CERT'],
'cert_cert': config['etcd']['CERT_CERT'],
'cert_key': config['etcd']['CERT_KEY']
'host': config['etcd']['url'],
'port': config['etcd']['port'],
'ca_cert': config['etcd']['ca_cert'],
'cert_cert': config['etcd']['cert_cert'],
'cert_key': config['etcd']['cert_key']
}
etcd_client = Etcd3Wrapper(*etcd_wrapper_args, **etcd_wrapper_kwargs)
host_pool = HostPool(etcd_client, config['etcd']['HOST_PREFIX'])
vm_pool = VmPool(etcd_client, config['etcd']['VM_PREFIX'])
request_pool = RequestPool(etcd_client, config['etcd']['REQUEST_PREFIX'])
host_pool = HostPool(etcd_client, config['etcd']['host_prefix'])
vm_pool = VmPool(etcd_client, config['etcd']['vm_prefix'])
request_pool = RequestPool(etcd_client, config['etcd']['request_prefix'])
running_vms = []
__storage_backend = config['storage']["STORAGE_BACKEND"]
if __storage_backend == "filesystem":
image_storage_handler = FileSystemBasedImageStorageHandler(vm_base=config['storage']["VM_DIR"],
image_base=config['storage']["IMAGE_DIR"])
elif __storage_backend == "ceph":
image_storage_handler = CEPHBasedImageStorageHandler(vm_base=config['storage']["CEPH_VM_POOL"],
image_base=config['storage']["CEPH_IMAGE_POOL"])
__storage_backend = config['storage']['backend']
if __storage_backend == 'filesystem':
image_storage_handler = FileSystemBasedImageStorageHandler(
vm_base=config['storage']['vm_dir'],
image_base=config['storage']['image_dir']
)
elif __storage_backend == 'ceph':
image_storage_handler = CEPHBasedImageStorageHandler(
vm_base=config['storage']['ceph_vm_pool'],
image_base=config['storage']['ceph_image_pool']
)
else:
raise Exception("Unknown Image Storage Handler")
raise Exception('Unknown Image Storage Handler')

24
ucloud/filescanner/main.py
View file

@ -3,6 +3,7 @@ import os
import pathlib
import subprocess as sp
import time
import sys
from uuid import uuid4
from . import logger
@ -19,7 +20,6 @@ def getxattr(file, attr):
'--absolute-names'], stderr=sp.DEVNULL)
value = value.decode("utf-8")
except sp.CalledProcessError as e:
logger.exception(e)
value = None
return value
@ -63,14 +63,13 @@ try:
sp.check_output(['which', 'getfattr'])
sp.check_output(['which', 'setfattr'])
except Exception as e:
logger.exception(e)
print('Make sure you have getfattr and setfattr available')
exit(1)
logger.error("You don't seems to have both getfattr and setfattr")
sys.exit(1)
def main():
BASE_DIR = config['storage']["FILE_DIR"]
FILE_PREFIX = config['storage']["FILE_PREFIX"]
BASE_DIR = config['storage']['file_dir']
FILE_PREFIX = config['etcd']['file_prefix']
# Recursively Get All Files and Folder below BASE_DIR
files = glob.glob("{}/**".format(BASE_DIR), recursive=True)
@ -79,7 +78,7 @@ def main():
files = list(filter(os.path.isfile, files))
untracked_files = list(
filter(lambda f: not bool(getxattr(f, "user.utracked")), files)
filter(lambda f: not bool(getxattr(f, "utracked")), files)
)
tracked_files = list(
@ -89,7 +88,8 @@ def main():
file_id = uuid4()
# Get Username
owner = pathlib.Path(file).parts[3]
owner = pathlib.Path(file).parts[len(pathlib.Path(BASE_DIR).parts)]
# Get Creation Date of File
# Here, we are assuming that ctime is creation time
# which is mostly not true.
@ -101,9 +101,7 @@ def main():
# Compute sha512 sum
sha_sum = sha512sum(file)
# File Path excluding base and username
file_path = pathlib.Path(file).parts[4:]
file_path = os.path.join(*file_path)
file_path = pathlib.Path(file).parts[-1]
# Create Entry
entry_key = os.path.join(FILE_PREFIX, str(file_id))
@ -115,10 +113,10 @@ def main():
"size": size
}
print("Tracking {}".format(file))
logger.info("Tracking %s", file)
# Insert Entry
etcd_client.put(entry_key, entry_value, value_in_json=True)
setxattr(file, "user.utracked", True)
setxattr(file, "utracked", True)
if __name__ == "__main__":

19
ucloud/host/main.py
View file

@ -1,9 +1,10 @@
import argparse
import multiprocessing as mp
import time
import sys
from etcd3_wrapper import Etcd3Wrapper
from os.path import isdir
from ucloud.common.etcd_wrapper import Etcd3Wrapper
from ucloud.common.request import RequestEntry, RequestType
from ucloud.config import (vm_pool, request_pool,
etcd_client, running_vms,
@ -18,7 +19,7 @@ from ucloud.host import logger
def update_heartbeat(hostname):
"""Update Last HeartBeat Time for :param hostname: in etcd"""
client = Etcd3Wrapper(*etcd_wrapper_args, **etcd_wrapper_kwargs)
host_pool = HostPool(client, config['etcd']['HOST_PREFIX'])
host_pool = HostPool(client, config['etcd']['host_prefix'])
this_host = next(filter(lambda h: h.hostname == hostname, host_pool.hosts), None)
while True:
@ -72,9 +73,11 @@ def maintenance(host):
running_vms.remove(_vm)
def check():
if config['etcd']['STORAGE_BACKEND'] == 'filesystem' and not isdir(config['etcd']['VM_DIR']):
if config['storage']['backend'] == 'filesystem' and \
not isdir(config['storage']['vm_dir']):
print("You have set STORAGE_BACKEND to filesystem. So, the vm directory mentioned"
" in .env file must exists. But, it don't.")
" in /etc/ucloud/ucloud.conf file must exists. But, it don't.")
sys.exit(1)
@ -84,7 +87,7 @@ def main(hostname):
heartbeat_updating_process = mp.Process(target=update_heartbeat, args=(hostname,))
host_pool = HostPool(etcd_client, config['etcd']['HOST_PREFIX'])
host_pool = HostPool(etcd_client, config['etcd']['host_prefix'])
host = next(filter(lambda h: h.hostname == hostname, host_pool.hosts), None)
assert host is not None, "No such host with name = {}".format(hostname)
@ -106,8 +109,8 @@ def main(hostname):
# beat updating mechanism in separated thread
for events_iterator in [
etcd_client.get_prefix(config['etcd']['REQUEST_PREFIX'], value_in_json=True),
etcd_client.watch_prefix(config['etcd']['REQUEST_PREFIX'], timeout=10, value_in_json=True),
etcd_client.get_prefix(config['etcd']['request_prefix'], value_in_json=True),
etcd_client.watch_prefix(config['etcd']['request_prefix'], timeout=10, value_in_json=True),
]:
for request_event in events_iterator:
request_event = RequestEntry(request_event)

14
ucloud/host/virtualmachine.py
View file

@ -46,7 +46,7 @@ def delete_network_interface(iface):
def resolve_network(network_name, network_owner):
network = etcd_client.get(join_path(config['etcd']["NETWORK_PREFIX"],
network = etcd_client.get(join_path(config['etcd']['network_prefix'],
network_owner,
network_name),
value_in_json=True)
@ -179,7 +179,7 @@ def get_start_command_args(vm_entry, vnc_sock_filename: str, migration=False, mi
for network_mac_and_tap in vm_networks:
network_name, mac, tap = network_mac_and_tap
_key = os.path.join(config['etcd']['NETWORK_PREFIX'], vm_entry.owner, network_name)
_key = os.path.join(config['etcd']['network_prefix'], vm_entry.owner, network_name)
network = etcd_client.get(_key, value_in_json=True)
network_type = network.value["type"]
network_id = str(network.value["id"])
@ -187,7 +187,7 @@ def get_start_command_args(vm_entry, vnc_sock_filename: str, migration=False, mi
if network_type == "vxlan":
tap = create_vxlan_br_tap(_id=network_id,
_dev=config['etcd']["VXLAN_PHY_DEV"],
_dev=config['network']['vxlan_phy_dev'],
tap_id=tap,
ip=network_ipv6)
update_radvd_conf(etcd_client)
@ -303,13 +303,13 @@ def transfer(request_event):
_host, _port = request_event.parameters["host"], request_event.parameters["port"]
_uuid = request_event.uuid
_destination = request_event.destination_host_key
vm = get_vm(running_vms, join_path(config['etcd']['VM_PREFIX'], _uuid))
vm = get_vm(running_vms, join_path(config['etcd']['vm_prefix'], _uuid))
if vm:
tunnel = sshtunnel.SSHTunnelForwarder(
_host,
ssh_username=config['ssh']["ssh_username"],
ssh_pkey=config['ssh']["SSH_PRIVATEKEY"],
ssh_username=config['ssh']['username'],
ssh_pkey=config['ssh']['private_key_path'],
remote_bind_address=("127.0.0.1", _port),
ssh_proxy_enabled=True,
ssh_proxy=(_host, 22)
@ -373,7 +373,7 @@ def launch_vm(vm_entry, migration=False, migration_port=None, destination_host_k
parameters={"host": get_ipv6_address(), "port": migration_port},
uuid=vm_entry.uuid,
destination_host_key=destination_host_key,
request_prefix=config['etcd']["REQUEST_PREFIX"]
request_prefix=config['etcd']['request_prefix']
)
request_pool.put(r)
else:

11
ucloud/imagescanner/main.py
View file

@ -20,9 +20,9 @@ def qemu_img_type(path):
def check():
""" check whether settings are sane, refuse to start if they aren't """
if config['etcd']['STORAGE_BACKEND'] == 'filesystem' and not isdir(config['etcd']['IMAGE_DIR']):
if config['storage']['backend'] == 'filesystem' and not isdir(config['storage']['image_dir']):
print("You have set STORAGE_BACKEND to filesystem, but "
"{} does not exist. Refusing to start".format(config['etcd']['IMAGE_DIR']))
"{} does not exist. Refusing to start".format(config['storage']['image_dir']))
sys.exit(1)
try:
@ -34,7 +34,7 @@ def check():
def main():
# We want to get images entries that requests images to be created
images = etcd_client.get_prefix(config['etcd']['IMAGE_PREFIX'], value_in_json=True)
images = etcd_client.get_prefix(config['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:
@ -43,9 +43,10 @@ def main():
image_owner = image.value['owner']
image_filename = image.value['filename']
image_store_name = image.value['store_name']
image_full_path = join_path(config['etcd']['BASE_DIR'], image_owner, image_filename)
image_full_path = join_path(config['storage']['file_dir'], image_owner, image_filename)
image_stores = etcd_client.get_prefix(config['etcd']['IMAGE_STORE_PREFIX'], value_in_json=True)
image_stores = etcd_client.get_prefix(config['etcd']['image_store_prefix'],
value_in_json=True)
user_image_store = next(filter(
lambda s, store_name=image_store_name: s.value["name"] == store_name,
image_stores

3
ucloud/metadata/main.py
View file

@ -43,7 +43,8 @@ class Root(Resource):
if not data:
return {'message': 'Metadata for such VM does not exists.'}, 404
else:
etcd_key = os.path.join(config['etcd']['USER_PREFIX'], data.value['owner_realm'],
etcd_key = os.path.join(config['etcd']['user_prefix'],
data.value['owner_realm'],
data.value['owner'], 'key')
etcd_entry = etcd_client.get_prefix(etcd_key, value_in_json=True)
user_personal_ssh_keys = [key.value for key in etcd_entry]

2
ucloud/scheduler/helper.py
View file

@ -106,7 +106,7 @@ def assign_host(vm):
r = RequestEntry.from_scratch(type=RequestType.StartVM,
uuid=vm.uuid,
hostname=vm.hostname,
request_prefix=config['etcd']['REQUEST_PREFIX'])
request_prefix=config['etcd']['request_prefix'])
request_pool.put(r)
vm.log.append("VM scheduled for starting")

8
ucloud/scheduler/main.py
View file

@ -18,8 +18,8 @@ def main():
pending_vms = []
for request_iterator in [
etcd_client.get_prefix(config['etcd']['REQUEST_PREFIX'], value_in_json=True),
etcd_client.watch_prefix(config['etcd']['REQUEST_PREFIX'], timeout=5, value_in_json=True),
etcd_client.get_prefix(config['etcd']['request_prefix'], value_in_json=True),
etcd_client.watch_prefix(config['etcd']['request_prefix'], timeout=5, value_in_json=True),
]:
for request_event in request_iterator:
request_entry = RequestEntry(request_event)
@ -46,7 +46,7 @@ def main():
r = RequestEntry.from_scratch(type="ScheduleVM",
uuid=pending_vm_entry.uuid,
hostname=pending_vm_entry.hostname,
request_prefix=config['etcd']['REQUEST_PREFIX'])
request_prefix=config['etcd']['request_prefix'])
request_pool.put(r)
elif request_entry.type == RequestType.ScheduleVM:
@ -72,7 +72,7 @@ def main():
r = RequestEntry.from_scratch(type=RequestType.InitVMMigration,
uuid=request_entry.uuid,
destination=request_entry.destination,
request_prefix=config['etcd']['REQUEST_PREFIX'])
request_prefix=config['etcd']['request_prefix'])
request_pool.put(r)
# If the Request is about a VM that just want to get started/created