def get_server(self, context, server_id, privileged_user=False,
timeout=None):
try:
return novaclient(context, privileged_user=privileged_user,
timeout=timeout).servers.get(server_id)
except nova_exceptions.NotFound:
raise exception.ServerNotFound(uuid=server_id)
except request_exceptions.Timeout:
raise exception.APITimeout(service='Nova')
def exec_cmd(self,
context,
server_id,
command,
run_as="root",
timeout=None):
server = self.get_server(context, server_id, timeout=timeout)
try:
return novaclient(context, timeout=timeout)\
.servers.exec_cmd_by_qga(server, command, run_as)
except nova_exceptions.NotFound:
raise exception.ServerNotFound(uuid=server_id)
except request_exceptions.Timeout:
raise exception.APITimeout(service='Nova')
except Exception as e:
LOG.error(_LE("Run cmd error, %s"), e)
raise exception.ExecCmdError()
def set_vm_state(self, context, server_id, vm_state, timeout=None):
server = self.get_server(context, server_id, timeout=timeout)
try:
return novaclient(context, timeout=timeout).servers.reset_state(
server, vm_state)
except nova_exceptions.NotFound:
raise exception.ServerNotFound(uuid=server_id)
except request_exceptions.Timeout:
raise exception.APITimeout(service='Nova')
except Exception as e:
if isinstance(e, basestring):
errmsg = e
else:
errmsg = e.message
if errmsg.find(NOT_PERMIT_VM_STATE) != -1:
raise exception.NotPermitVmState()
else:
raise
def thaw_filesystem(self, context, server_id, timeout=None):
server = self.get_server(context, server_id, timeout=timeout)
if server.status in [
"SHUTOFF", "PAUSED", "SUSPENDED", "SHELVED_OFFLOADED"
]:
LOG.warn(
_LW("VM %(server_id)s is in %(state)s state, do not need"
"to thaw filesystem"), {
'server_id': server_id,
'state': server.status
})
return
try:
return novaclient(context,
timeout=timeout).servers.thaw_filesystem(server)
except nova_exceptions.NotFound:
raise exception.ServerNotFound(uuid=server_id)
except request_exceptions.Timeout:
raise exception.APITimeout(service='Nova')
except nova_exceptions.Conflict as e:
if isinstance(e, basestring):
errmsg = e
else:
errmsg = e.message
LOG.warn(
_LW('vm %(server_id)s freeze fs meet error,'
'error message is %(message)s'), {
'server_id': server_id,
'message': e.message
})
if errmsg.find(QEMU_GA_NOT_ENABLE) != -1:
raise exception.QemuGANotEnable()
elif errmsg.find(QEMU_GA_NOT_AVAILABLE) != -1:
raise exception.QemuGANotAvailable()
elif errmsg.find(QEMU_GA_REPEAT_THAW) != -1:
raise exception.QemuGARepeatThaw()
else:
raise
