def delete(self, vm, data, **kwargs):
"""Delete VM definition"""
if vm.is_deployed():
raise VmIsNotOperational(_('VM is not notcreated'))
owner = vm.owner
dead_vm = vm.log_list
uuid = vm.uuid
hostname = vm.hostname
alias = vm.alias
zabbix_sync = vm.is_zabbix_sync_active()
external_zabbix_sync = vm.is_external_zabbix_sync_active()
task_id = SuccessTaskResponse.gen_task_id(self.request, vm=dead_vm, owner=owner)
# Every VM NIC could have an association to other tables. Cleanup first:
for nic in vm.json_get_nics():
# noinspection PyBroadException
try:
nic_ser = VmDefineNicSerializer(self.request, vm, nic)
nic_ser.delete_ip(task_id)
except Exception as ex:
logger.exception(ex)
continue
# Finally delete VM
logger.debug('Deleting VM %s from DB', vm)
vm.delete()
try:
return SuccessTaskResponse(self.request, None, vm=dead_vm, owner=owner, task_id=task_id, msg=LOG_DEF_DELETE)
finally:
# Signal!
vm_undefined.send(TaskID(task_id, request=self.request), vm_uuid=uuid, vm_hostname=hostname, vm_alias=alias,
dc=self.request.dc, zabbix_sync=zabbix_sync, external_zabbix_sync=external_zabbix_sync)
def post(self, vm, data, hostname_or_uuid=None):
"""
Create VM definition
In this case, hostname_or_uuid parameter has to be only hostname, never uuid
"""
ser = VmDefineSerializer(self.request,
data=data,
hostname=hostname_or_uuid)
if ser.is_valid():
ser.object.save(sync_json=True,
update_node_resources=ser.update_node_resources)
vm = ser.object
try:
res = SuccessTaskResponse(self.request,
ser.data,
status=scode.HTTP_201_CREATED,
vm=vm,
msg=LOG_DEF_CREATE,
detail_dict=ser.detail_dict())
vm_defined.send(TaskID(res.data.get('task_id'),
request=self.request),
vm=vm) # Signal!
return res
finally:
# Create disk/nics if defined in template
if vm.template:
self._create_disks_and_nics(vm)
return FailureTaskResponse(self.request, ser.errors)
def put(self):
dc = self.dc
ser = self.serializer(self.request, dc, data=self.data, partial=True)
if not ser.is_valid():
return FailureTaskResponse(self.request, ser.errors, obj=dc)
dcs = dc.custom_settings
dcs.update(ser.settings)
new_settings = dcs
old_settings = dc.custom_settings
dc.custom_settings = dcs
dc.save()
data = ser.data # Prepare ser._data for ser.detail_dict() to work
res = SuccessTaskResponse(self.request,
data,
obj=dc,
detail_dict=ser.detail_dict(),
msg=LOG_DC_SETTINGS_UPDATE)
task_id = TaskID(res.data.get('task_id'), request=self.request)
if old_settings != new_settings:
dc_settings_changed.send(task_id,
dc=dc,
old_settings=old_settings,
new_settings=new_settings) # Signal!
return res
def put(self):
dc = self.dc
ser = self.serializer(self.request, dc, data=self.data, partial=True)
if not ser.is_valid():
return FailureTaskResponse(self.request, ser.errors, obj=dc)
dcs = dc.custom_settings
dcs.update(ser.settings)
new_settings = dcs
old_settings = dc.custom_settings
dc.custom_settings = dcs
dc.save()
data = ser.data
dd = ser.detail_dict()
res = SuccessTaskResponse(self.request, data, obj=dc, detail_dict=dd, msg=LOG_DC_SETTINGS_UPDATE)
# Check if monitoring settings have been changed
if any(['MON_ZABBIX' in i for i in dd]):
logger.info('Monitoring settings have been changed in DC %s. Running task for clearing zabbix cache', dc)
try:
mon_clear_zabbix_cache.call(dc.id, full=True)
except Exception as e:
logger.exception(e)
# Check if compute node SSH key was added to VMS_NODE_SSH_KEYS_DEFAULT
task_id = TaskID(res.data.get('task_id'), request=self.request)
if old_settings != new_settings:
dc_settings_changed.send(task_id, dc=dc, old_settings=old_settings, new_settings=new_settings) # Signal
return res
def put(self, vm, data):
"""Revert json_active (undo). Problematic attributes:
- hostname - handled by revert_active() + change requires some post configuration
- alias - handled by revert_active()
- owner - handled by revert_active()
- template - handled by revert_active()
- monitored - handled by revert_active(), but mon_vm_sync task must be run via vm_define_reverted signal
- tags - wont be reverted (not saved in json)
- nics.*.ip - ip reservation is fixed via vm_update_ipaddress_usage()
- nics.*.dns + ptr - known bug - wont be reverted
"""
if vm.is_notcreated():
raise VmIsNotOperational('VM is not created')
if vm.json == vm.json_active:
raise ExpectationFailed('VM definition unchanged')
if vm.tasks:
raise VmHasPendingTasks
# Prerequisites
vm.hostname_is_valid_fqdn(
cache=False
) # Cache vm._fqdn hostname/domain pair and find dns record
hostname = vm.hostname # Save hostname configured in DB
# The magic happens here: get_diff() will run vm.revert_active() and return a diff
vm_diff = VmDefineView(self.request).get_diff(vm, full=True)
# Save VM
hostname_changed = hostname != vm.hostname
vm.unlock() # vm saving was locked by revert_active()
vm.save(update_hostname=hostname_changed,
update_node_resources=True,
update_storage_resources=True)
# Generate response
detail = 'Reverted VM configuration from %s.\n%s' % (
vm.changed.strftime('%Y-%m-%d %H:%M:%S%z'),
self.nice_diff(vm_diff))
vm_diff['reverted_from'] = vm.changed
res = SuccessTaskResponse(self.request,
vm_diff,
detail=detail,
msg=LOG_DEF_REVERT,
vm=vm)
# Post-save stuff
task_id = TaskID(res.data.get('task_id'), request=self.request)
vm_update_ipaddress_usage(vm)
vm_define_reverted.send(task_id, vm=vm) # Signal!
if hostname_changed:
VmDefineHostnameChanged(self.request, vm,
hostname).send() # Task event for GUI
return res
def put(self):
"""Update node definition"""
node = self.node
ser = NodeDefineSerializer(self.request,
node,
data=self.data,
partial=True)
if node.tasks:
raise NodeHasPendingTasks
if not ser.is_valid():
return FailureTaskResponse(self.request,
ser.errors,
obj=node,
dc_bound=False)
if ser.status_changed == Node.OFFLINE and node.has_related_tasks():
raise NodeHasPendingTasks(
'Node has related objects with pending tasks')
# Changing cpu or disk coefficients can lead to negative numbers in node.cpu/ram_free or dc_node.cpu/ram_free;
# This is solved by running the DB update inside a transaction and checking for negative values (=> rollback)
errors = ser.save()
if errors:
return FailureTaskResponse(self.request,
errors,
obj=node,
dc_bound=False)
res = SuccessTaskResponse(self.request,
ser.data,
obj=node,
detail_dict=ser.detail_dict(),
dc_bound=False,
msg=LOG_DEF_UPDATE)
task_id = TaskID(res.data.get('task_id'), request=self.request)
# Delete obsolete IP address and DNS records and create new ones if possible
self._post_update(task_id, ser)
# Signals section (should go last)
if ser.status_changed:
node_status_changed.send(task_id, node=node,
automatic=False) # Signal!
if node.is_online():
node_online.send(task_id, node=node,
automatic=False) # Signal!
elif node.is_offline():
node_offline.send(task_id, node=node) # Signal!
if ser.monitoring_changed or ser.address_changed:
node_json_changed.send(task_id, node=node) # Signal!
return res
def put(self):
request, vm = self.request, self.vm
# only admin
if not (request.user and request.user.is_admin(request)):
raise PermissionDenied
apiview = self.apiview
apiview['force'] = bool(ForceSerializer(data=self.data, default=False))
if vm.status not in (vm.RUNNING, vm.STOPPED):
raise VmIsNotOperational('VM is not stopped or running')
if apiview['force']:
# final cmd and empty stdin
cmd = 'vmadm get %s 2>/dev/null' % vm.uuid
stdin = None
block_key = None
elif vm.json_changed():
if vm.locked:
raise VmIsLocked
json_update = vm.json_update()
self.check_update(json_update)
if (vm.json_disks_changed() or vm.json_nics_changed()) and vm.tasks:
raise VmHasPendingTasks
# create json suitable for update
stdin, cmd1 = self.fix_update(json_update)
stdin = stdin.dump()
# cmd = zfs set... >&2;
if cmd1 and vm.snapshot_set.exists():
raise ExpectationFailed('VM has snapshots')
# final cmd
cmd = cmd1 + 'vmadm update %s >&2; e=$?; vmadm get %s 2>/dev/null; exit $e' % (vm.uuid, vm.uuid)
# Possible node_image import task which will block this task on node worker
block_key = self.node_image_import(vm.node, json_update.get('add_disks', []))
else: # JSON unchanged and not force
detail = 'Successfully updated VM %s (locally)' % vm.hostname
res = SuccessTaskResponse(request, detail, msg=LOG_VM_UPDATE, vm=vm, detail=detail)
vm_updated.send(TaskID(res.data.get('task_id'), request=request), vm=vm) # Signal!
return res
msg = LOG_VM_UPDATE
meta = {
'output': {'returncode': 'returncode', 'stderr': 'message', 'stdout': 'json'},
'replace_stderr': ((vm.uuid, vm.hostname),), 'msg': msg, 'vm_uuid': vm.uuid, 'apiview': apiview
}
callback = ('api.vm.base.tasks.vm_update_cb', {'vm_uuid': vm.uuid})
logger.debug('Updating VM %s with json: """%s"""', vm, stdin)
err = True
vm.set_notready()
try:
tid, err = execute(request, vm.owner.id, cmd, stdin=stdin, meta=meta, lock=self.lock, callback=callback,
queue=vm.node.fast_queue, block_key=block_key)
if err:
return FailureTaskResponse(request, err, vm=vm)
else:
return TaskResponse(request, tid, msg=msg, vm=vm, api_view=apiview, data=self.data)
finally:
if err:
vm.revert_notready()
def put(self):
"""Update node definition"""
node = self.node
ser = NodeDefineSerializer(self.request, node, data=self.data, partial=True)
if node.tasks:
raise NodeHasPendingTasks
if not ser.is_valid():
return FailureTaskResponse(self.request, ser.errors, obj=node, dc_bound=False)
if ser.status_changed == Node.OFFLINE and node.has_related_tasks():
raise NodeHasPendingTasks('Node has related objects with pending tasks')
# Changing cpu or disk coefficients can lead to negative numbers in node.cpu/ram_free or dc_node.cpu/ram_free
update_node_resources = ser.update_node_resources
try:
with transaction.atomic():
ser.object.save(update_resources=update_node_resources, clear_cache=ser.clear_cache)
if update_node_resources:
if node.cpu_free < 0 or node.dcnode_set.filter(cpu_free__lt=0).exists():
raise IntegrityError('cpu_check')
if node.ram_free < 0 or node.dcnode_set.filter(ram_free__lt=0).exists():
raise IntegrityError('ram_check')
except IntegrityError as exc:
errors = {}
exc_error = str(exc)
# ram or cpu constraint was violated on vms_dcnode (can happen when DcNode strategy is set to RESERVED)
# OR a an exception was raised above
if 'ram_check' in exc_error:
errors['ram_coef'] = ser.error_negative_resources
if 'cpu_check' in exc_error:
errors['cpu_coef'] = ser.error_negative_resources
if not errors:
raise exc
return FailureTaskResponse(self.request, errors, obj=node, dc_bound=False)
if update_node_resources: # cpu_free or ram_free changed
ser.reload()
res = SuccessTaskResponse(self.request, ser.data, obj=node, detail_dict=ser.detail_dict(), dc_bound=False,
msg=LOG_DEF_UPDATE)
task_id = TaskID(res.data.get('task_id'), request=self.request)
if ser.status_changed:
node_status_changed.send(task_id, node=node, automatic=False) # Signal!
if node.is_online():
node_online.send(task_id, node=node, automatic=False) # Signal!
elif node.is_offline():
node_offline.send(task_id, node=node) # Signal!
if ser.monitoring_changed:
node_json_changed.send(task_id, node=node) # Signal!
return res
def delete(self):
"""Delete node definition"""
node = self.node
if node.is_head:
raise PreconditionRequired('Head node cannot be deleted')
force = bool(ForceSerializer(data=self.data, default=False))
# Check if node has VMs and backups if not using force
if force:
# Fetch data for vm_undefined signal
vms = [{'vm_uuid': vm.uuid, 'dc': vm.dc, 'zabbix_sync': vm.is_zabbix_sync_active(),
'external_zabbix_sync': vm.is_external_zabbix_sync_active()}
for vm in node.vm_set.select_related('dc').all()]
else:
vms = ()
# Simulate turning compute and backup flags off
ser = NodeDefineSerializer(self.request, node, data={'is_backup': False, 'is_compute': False}, partial=True)
if not ser.is_valid():
return FailureTaskResponse(self.request, ser.errors, obj=node, dc_bound=False)
if node.tasks:
raise NodeHasPendingTasks
if node.has_related_tasks():
raise NodeHasPendingTasks('Node has related objects with pending tasks')
uuid = node.uuid
hostname = node.hostname
obj = node.log_list
owner = node.owner
queues = node.all_queues
try:
ip_address = node.ip_address
except ObjectDoesNotExist:
ip_address = None
# Bypass signal handling for VMs (needed when using force)
# Fixes: IntegrityError: insert or update on table "vms_nodestorage"
post_delete.disconnect(Vm.post_delete, sender=Vm, dispatch_uid='post_delete_vm')
try:
node.delete()
finally:
post_delete.connect(Vm.post_delete, sender=Vm, dispatch_uid='post_delete_vm')
res = SuccessTaskResponse(self.request, None, obj=obj, owner=owner, detail_dict={'force': force},
msg=LOG_DEF_DELETE, dc_bound=False)
task_id = TaskID(res.data.get('task_id'), request=self.request)
node_deleted.send(task_id, node_uuid=uuid, node_hostname=hostname) # Signal!
# Force deletion will delete all node related objects (VMs, backups...)
for vm in vms:
vm_undefined.send(task_id, **vm) # Signal! for every vm on deleted node
try:
# Delete DNS records associated with node
self._delete_dns_records(self.request, task_id, node, hostname, ip_address)
# Delete celery (amqp) task queues (named after node hostname); fail silently
self._delete_queues(queues, fail_silently=True)
# Delete IP address associated with node
self._delete_ip_address(ip_address)
except Exception as exc:
logger.exception(exc)
return res
def put(self):
request, vm = self.request, self.vm
# only admin
if not (request.user and request.user.is_admin(request)):
raise PermissionDenied
node = vm.node
apiview = self.apiview
apiview['force'] = bool(ForceSerializer(data=self.data, default=False))
queue = vm.node.fast_queue
new_node_uuid = None
detail_dict = {}
if vm.status not in (vm.RUNNING, vm.STOPPED):
raise VmIsNotOperational('VM is not stopped or running')
if apiview['force']:
detail_dict['force'] = True
# final cmd and empty stdin
cmd = 'vmadm get %s 2>/dev/null' % vm.uuid
stdin = None
block_key = None
node_param = self.data.get('node')
if node_param:
if not request.user.is_staff:
raise PermissionDenied
node = get_node(request, node_param, dc=request.dc, exists_ok=True, noexists_fail=True)
if node.hostname == vm.node.hostname:
raise InvalidInput('VM already has the requested node set in DB')
apiview['node'] = detail_dict['node'] = node.hostname
queue = node.fast_queue
new_node_uuid = node.uuid
elif vm.json_changed():
if vm.locked:
raise VmIsLocked
json_update = vm.json_update()
self.check_update(json_update)
if (vm.json_disks_changed() or vm.json_nics_changed()) and vm.tasks:
raise VmHasPendingTasks
# create json suitable for update
stdin, cmd1 = self.fix_update(json_update)
self.validate_update(vm, stdin, cmd1)
stdin = stdin.dump()
# final cmd
cmd = cmd1 + 'vmadm update %s >&2; e=$?; vmadm get %s 2>/dev/null; exit $e' % (vm.uuid, vm.uuid)
# Possible node_image import task which will block this task on node worker
block_key = self.node_image_import(vm.node, json_update.get('add_disks', []))
else: # JSON unchanged and not force
detail = 'Successfully updated VM %s (locally)' % vm.hostname
res = SuccessTaskResponse(request, detail, msg=LOG_VM_UPDATE, vm=vm, detail=detail)
vm_updated.send(TaskID(res.data.get('task_id'), request=request), vm=vm) # Signal!
return res
# Check compute node status after we know which compute node the task is going to be run on
# The internal vm.node.status checking is disabled in get_vm() in __init__
if node.status != node.ONLINE:
raise NodeIsNotOperational
msg = LOG_VM_UPDATE
meta = {
'output': {'returncode': 'returncode', 'stderr': 'message', 'stdout': 'json'},
'replace_stderr': ((vm.uuid, vm.hostname),), 'msg': msg, 'vm_uuid': vm.uuid, 'apiview': apiview
}
callback = ('api.vm.base.tasks.vm_update_cb', {'vm_uuid': vm.uuid, 'new_node_uuid': new_node_uuid})
logger.debug('Updating VM %s with json: """%s"""', vm, stdin)
err = True
vm.set_notready()
try:
tid, err = execute(request, vm.owner.id, cmd, stdin=stdin, meta=meta, lock=self.lock, callback=callback,
queue=queue, block_key=block_key)
if err:
return FailureTaskResponse(request, err, vm=vm)
else:
return TaskResponse(request, tid, msg=msg, vm=vm, api_view=apiview, data=self.data,
detail_dict=detail_dict)
finally:
if err:
vm.revert_notready()
