meow
cc0ca68498
* Fix issue that causes a new image store to be created at every start of ucloud-api. * VM Migration API call now takes hostname instead of host key. * StorageHandler Classes are introduced. They transparently handles things related to importing of image, make vm out of image, resize vm image, delete vm image etc. * Loggers added to __init__.py of every ucloud component's subpackage. * Non-Trivial Timeout Events are no longer logged. * Fix issue that prevents removal of stopped VMs (i.e VMs that are successfully migrated). * Improved unit handling added. e.g MB, Mb, mB, mb are all Mega Bytes. * VM migration is now possible on IPv6 host. * Destination VM (receiving side of migration of a vm) now correctly expects incoming data on free ephemeral port. * Traceback is no longer output to screen, instead it goes to log file. * All sanity checks are put into a single file. These checks are run by ucloud.py before running any of ucloud component.
106 lines
2.9 KiB
Python
106 lines
2.9 KiB
Python
from contextlib import contextmanager
|
|
from datetime import datetime
|
|
from os.path import join
|
|
|
|
from .classes import SpecificEtcdEntryBase
|
|
|
|
|
|
class VMStatus:
|
|
# Must be only assigned to brand new VM
|
|
requested_new = "REQUESTED_NEW"
|
|
|
|
# Only Assigned to already created vm
|
|
requested_start = "REQUESTED_START"
|
|
|
|
# These all are for running vms
|
|
requested_shutdown = "REQUESTED_SHUTDOWN"
|
|
requested_migrate = "REQUESTED_MIGRATE"
|
|
requested_delete = "REQUESTED_DELETE"
|
|
# either its image is not found or user requested
|
|
# to delete it
|
|
deleted = "DELETED"
|
|
|
|
stopped = "STOPPED" # After requested_shutdown
|
|
killed = "KILLED" # either host died or vm died itself
|
|
|
|
running = "RUNNING"
|
|
|
|
error = "ERROR" # An error occurred that cannot be resolved automatically
|
|
|
|
|
|
class VMEntry(SpecificEtcdEntryBase):
|
|
|
|
def __init__(self, e):
|
|
self.owner = None # type: str
|
|
self.specs = None # type: dict
|
|
self.hostname = None # type: str
|
|
self.status = None # type: str
|
|
self.image_uuid = None # type: str
|
|
self.log = None # type: list
|
|
self.in_migration = None # type: bool
|
|
|
|
super().__init__(e)
|
|
|
|
@property
|
|
def uuid(self):
|
|
return self.key.split("/")[-1]
|
|
|
|
def declare_killed(self):
|
|
self.hostname = ""
|
|
self.in_migration = False
|
|
if self.status == VMStatus.running:
|
|
self.status = VMStatus.killed
|
|
|
|
def declare_stopped(self):
|
|
self.hostname = ""
|
|
self.in_migration = False
|
|
self.status = VMStatus.stopped
|
|
|
|
def add_log(self, msg):
|
|
self.log = self.log[:5]
|
|
self.log.append("{} - {}".format(datetime.now().isoformat(), msg))
|
|
|
|
|
|
class VmPool:
|
|
def __init__(self, etcd_client, vm_prefix):
|
|
self.client = etcd_client
|
|
self.prefix = vm_prefix
|
|
|
|
@property
|
|
def vms(self):
|
|
_vms = self.client.get_prefix(self.prefix, value_in_json=True)
|
|
return [VMEntry(vm) for vm in _vms]
|
|
|
|
def by_host(self, host, _vms=None):
|
|
if _vms is None:
|
|
_vms = self.vms
|
|
return list(filter(lambda x: x.hostname == host, _vms))
|
|
|
|
def by_status(self, status, _vms=None):
|
|
if _vms is None:
|
|
_vms = self.vms
|
|
return list(filter(lambda x: x.status == status, _vms))
|
|
|
|
def except_status(self, status, _vms=None):
|
|
if _vms is None:
|
|
_vms = self.vms
|
|
return list(filter(lambda x: x.status != status, _vms))
|
|
|
|
def get(self, key):
|
|
if not key.startswith(self.prefix):
|
|
key = join(self.prefix, key)
|
|
v = self.client.get(key, value_in_json=True)
|
|
if v:
|
|
return VMEntry(v)
|
|
return None
|
|
|
|
def put(self, obj: VMEntry):
|
|
self.client.put(obj.key, obj.value, value_in_json=True)
|
|
|
|
@contextmanager
|
|
def get_put(self, key) -> VMEntry:
|
|
# Updates object at key on exit
|
|
obj = self.get(key)
|
|
yield obj
|
|
if obj:
|
|
self.put(obj)
|