def add_vm_states(self, vm_ids):
try:
transaction.begin()
avail_states = DBSession.query(AvailState).filter(AvailState.entity_id.in_(vm_ids)).all()
from stackone.model.VM import VM
(vshs, avails) = ([], [])
for avail in avail_states:
vsh = DBSession.query(VMStateHistory).filter(VMStateHistory.node_id == self.node_id).filter(VMStateHistory.vm_id == avail.entity_id).first()
if vsh is None:
vsh = VMStateHistory(self.node_id, avail.entity_id, avail.avail_state, avail.monit_state, avail.transient_state, avail.transient_state_time, avail.owner)
else:
vsh.avail_state = avail.avail_state
vsh.monit_state = avail.monit_state
vsh.transient_state = avail.transient_state
vsh.transient_state_time = avail.transient_state_time
vsh.owner = avail.owner
vsh.timestamp = datetime.now()
vshs.append(vsh)
avails.append(avail)
DBSession.add_all(vshs)
DBSession.add_all(avails)
transaction.commit()
except Exception as e:
LOGGER.error(to_str(e))
DBSession.rollback()
transaction.begin()
traceback.print_exc()
raise e
def migrate_back_and_start_vms(self):
LOGGER.debug('In migrate_back')
vshs = VMStateHistory.get_vm_states(self.node_id)
(s_flag, f_flag) = (False, False)
for vsh in vshs:
try:
vm = DBSession.query(VM).filter(VM.id == vsh.vm_id).options(eagerload('current_state')).first()
domname = vm.name
if vm is None:
msg = 'Removing entries for VM ' + domname + ' from VM State History'
LOGGER.info(msg)
VMStateHistory.remove_vm_states(self.entity_id, vsh.vm_id, True)
msg = 'Processing VM ' + domname + ' for the Node ' + self.nodename + '. '
self.msg += '\n\n' + msg + '\n'
self.msg += '==============================\n'
LOGGER.info(msg)
vm_ent = DBSession.query(Entity).filter(Entity.entity_id == vm.id).one()
src_node = DBSession.query(ManagedNode).filter(ManagedNode.id == vm_ent.parents[0].entity_id).options(eagerload('current_state')).one()
msg = 'VM ' + domname + ' is already under the Node ' + self.nodename
self.msg += '\n' + msg
LOGGER.info(msg)
(was_running, was_paused) = (False, False)
if vsh.monit_state == AvailState.MONITORING:
was_running = True
if vsh.avail_state == VM.PAUSED:
was_paused = True
if was_running == False:
config = vm.get_config()
if config and config.get('auto_start_vm') == 1:
was_running = True
if was_running == True:
retry_count = vm.get_attribute_value(constants.retry_count, 3)
wait_interval = vm.get_attribute_value(constants.wait_interval, 3)
msg = 'Trying to start the VM ' + domname
self.msg += '\n' + msg
LOGGER.info(msg)
if self.dom_start(self.auth, vm, self.node, retry_count, wait_interval):
msg = 'Successfully started VM ' + domname
self.msg += '\n' + msg
LOGGER.info(msg)
s_flag = True
if was_paused:
msg = 'Trying to pause VM ' + domname
self.msg += '\n' + msg
LOGGER.info(msg)
if self.dom_pause(self.auth,vm,self.node) == True:
s_flag = True
msg = 'Successfully paused VM ' + domname
self.msg += '\n' + msg
LOGGER.info(msg)
else:
f_flag = True
msg = 'Failed to pause VM ' + domname
self.msg += '\n' + msg
LOGGER.info(msg)
else:
f_flag = True
msg = 'Failed to start VM ' + domname
self.msg += '\n' + msg
LOGGER.info(msg)
else:
s_flag = True
msg = 'Removing entries for VM ' + domname + ' from VM State History'
LOGGER.info(msg)
VMStateHistory.remove_vm_states(self.entity_id, vsh.vm_id)
#CONTINUE_LOOP
if self.is_down(vm):
msg = 'Cold Mirgation of VM ' + domname + ' to the Node ' + self.nodename + '. '
self.msg += '\n' + msg
LOGGER.info(msg)
if self.dom_migrate(self.auth, vm, src_node, self.node):
f_flag = True
msg = 'Migrating VM ' + domname + ' back to the node ' + self.nodename + ' failed.'
self.msg += '\n' + msg
LOGGER.info(msg)
config = vm.get_config()
if config and config.get('auto_start_vm') == 1:
LOGGER.info('auto_start_vm is 1 for Down VM %s' % domname)
retry_count = vm.get_attribute_value(constants.retry_count, 3)
wait_interval = vm.get_attribute_value(constants.wait_interval, 3)
if self.dom_start(self.auth, vm, self.node, retry_count, wait_interval):
msg = 'Successfully started Down VM ' + domname
s_flag = True
self.msg += '\n' + msg
LOGGER.info(msg)
else:
f_flag = True
msg = 'Failed to start Down VM ' + domname
self.msg += '\n' + msg
LOGGER.info(msg)
else:
f_flag = True
self.dom_migrate(self.auth, vm, src_node, self.node)
f_flag = True
msg = 'Migrating VM ' + domname + ' back to the node ' + self.nodename + ' failed.'
self.msg += '\n' + msg
LOGGER.info(msg)
else:
msg = 'Live Mirgation of VM ' + domname + ' to the Node ' + self.nodename + '. '
self.msg += '\n' + msg
LOGGER.info(msg)
if self.dom_migrate(self.auth, vm, src_node, self.node, 'true'):
s_flag = True
msg = 'Migrating VM ' + domname + ' back to the node ' + self.nodename + ' Complete.'
self.msg += '\n' + msg
LOGGER.info(msg)
else:
f_flag = True
msg = 'Migrating VM ' + domname + ' back to the node ' + self.nodename + ' Failed.'
self.msg += '\n' + msg
LOGGER.info(msg)
msg = 'Removing entries for VM ' + domname + ' from VM State History'
LOGGER.info(msg)
except Exception as e:
f_flag = True
traceback.print_exc()
self.msg += '\n\nFinished processing VM\n'
self.msg += '==============================\n'
if s_flag == True:
self.status = self.SUCCESS
if f_flag == True:
self.status = self.FAILURE
if s_flag == True and f_flag == True:
self.status = self.PARTIAL
if len(vshs) == 0:
self.status = self.SUCCESS
msg = 'Finished processing VMs with the Node ' + self.nodename + '. '
self.msg += '\n' + msg
LOGGER.info(msg)
return True
