Backport auxiliary console support for Qemu, Docker and Dynamips nodes

This commit is contained in:
grossmj committed 2024-09-22 18:29:04 +07:00
1 parent 1f09a3e6bc
commit c41c11eb34
26 files changed
+374 -155

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+116 -67
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@@ -50,14 +50,16 @@ class BaseNode:
:param node_id: Node instance identifier
:param project: Project instance
:param manager: parent node manager
:param console: TCP console port
:param aux: TCP aux console port
:param allocate_aux: Boolean if true will allocate an aux console port
:param console: console TCP port
:param console_type: console type
:param aux: auxiliary console TCP port
:param aux_type: auxiliary console type
:param linked_clone: The node base image is duplicate/overlay (Each node data are independent)
:param wrap_console: The console is wrapped using AsyncioTelnetServer
:param wrap_aux: The auxiliary console is wrapped using AsyncioTelnetServer
"""
def __init__(self, name, node_id, project, manager, console=None, console_type="telnet", aux=None, allocate_aux=False, linked_clone=True, wrap_console=False):
def __init__(self, name, node_id, project, manager, console=None, console_type="telnet", aux=None, aux_type="none", linked_clone=True, wrap_console=False, wrap_aux=False):
self._name = name
self._usage = ""
@@ -68,22 +70,25 @@ class BaseNode:
self._console = console
self._aux = aux
self._console_type = console_type
self._aux_type = aux_type
self._temporary_directory = None
self._hw_virtualization = False
self._ubridge_hypervisor = None
self._closed = False
self._node_status = "stopped"
self._command_line = ""
self._allocate_aux = allocate_aux
self._wrap_console = wrap_console
self._wrapper_telnet_server = None
self._wrap_aux = wrap_aux
self._wrapper_telnet_servers = []
self._wrap_console_reader = None
self._wrap_console_writer = None
self._internal_console_port = None
self._internal_aux_port = None
self._custom_adapters = []
self._ubridge_require_privileged_access = False
if self._console is not None:
# use a previously allocated console port
if console_type == "vnc":
vnc_console_start_port_range, vnc_console_end_port_range = self._get_vnc_console_port_range()
self._console = self._manager.port_manager.reserve_tcp_port(
@@ -97,25 +102,45 @@ class BaseNode:
else:
self._console = self._manager.port_manager.reserve_tcp_port(self._console, self._project)
# We need to allocate aux before giving a random console port
if self._aux is not None:
self._aux = self._manager.port_manager.reserve_tcp_port(self._aux, self._project)
# use a previously allocated auxiliary console port
if aux_type == "vnc":
# VNC is a special case and the range must be 5900-6000
self._aux = self._manager.port_manager.reserve_tcp_port(
self._aux, self._project, port_range_start=5900, port_range_end=6000
)
elif aux_type == "none":
self._aux = None
else:
self._aux = self._manager.port_manager.reserve_tcp_port(self._aux, self._project)
if self._console is None:
# allocate a new console
if console_type == "vnc":
vnc_console_start_port_range, vnc_console_end_port_range = self._get_vnc_console_port_range()
self._console = self._manager.port_manager.get_free_tcp_port(
self._project,
port_range_start=vnc_console_start_port_range,
port_range_end=vnc_console_end_port_range)
port_range_end=vnc_console_end_port_range,
)
elif console_type != "none":
self._console = self._manager.port_manager.get_free_tcp_port(self._project)
if self._aux is None:
# allocate a new auxiliary console
if aux_type == "vnc":
# VNC is a special case and the range must be 5900-6000
self._aux = self._manager.port_manager.get_free_tcp_port(
self._project, port_range_start=5900, port_range_end=6000
)
elif aux_type != "none":
self._aux = self._manager.port_manager.get_free_tcp_port(self._project)
if self._wrap_console:
self._internal_console_port = self._manager.port_manager.get_free_tcp_port(self._project)
if self._aux is None and allocate_aux:
self._aux = self._manager.port_manager.get_free_tcp_port(self._project)
if self._wrap_aux:
self._internal_aux_port = self._manager.port_manager.get_free_tcp_port(self._project)
log.debug("{module}: {name} [{id}] initialized. Console port {console}".format(module=self.manager.module_name,
name=self.name,
@@ -343,6 +368,9 @@ class BaseNode:
if self._aux:
self._manager.port_manager.release_tcp_port(self._aux, self._project)
self._aux = None
if self._wrap_aux:
self._manager.port_manager.release_tcp_port(self._internal_aux_port, self._project)
self._internal_aux_port = None
self._closed = True
return True
@@ -366,56 +394,49 @@ class BaseNode:
return vnc_console_start_port_range, vnc_console_end_port_range
async def start_wrap_console(self):
"""
Start a telnet proxy for the console allowing multiple telnet clients
to be connected at the same time
"""
async def _wrap_telnet_proxy(self, internal_port, external_port):
if not self._wrap_console or self._console_type != "telnet":
return
remaining_trial = 60
while True:
try:
(self._wrap_console_reader, self._wrap_console_writer) = await asyncio.open_connection(
host="127.0.0.1",
port=self._internal_console_port
)
(reader, writer) = await asyncio.open_connection(host="127.0.0.1", port=internal_port)
break
except (OSError, ConnectionRefusedError) as e:
if remaining_trial <= 0:
raise e
await asyncio.sleep(0.1)
remaining_trial -= 1
await AsyncioTelnetServer.write_client_intro(self._wrap_console_writer, echo=True)
server = AsyncioTelnetServer(
reader=self._wrap_console_reader,
writer=self._wrap_console_writer,
binary=True,
echo=True
)
await AsyncioTelnetServer.write_client_intro(writer, echo=True)
server = AsyncioTelnetServer(reader=reader, writer=writer, binary=True, echo=True)
# warning: this will raise OSError exception if there is a problem...
self._wrapper_telnet_server = await asyncio.start_server(
server.run,
self._manager.port_manager.console_host,
self.console
)
telnet_server = await asyncio.start_server(server.run, self._manager.port_manager.console_host, external_port)
self._wrapper_telnet_servers.append(telnet_server)
async def start_wrap_console(self):
"""
Start a Telnet proxy servers for the console and auxiliary console allowing multiple telnet clients
to be connected at the same time
"""
if self._wrap_console and self._console_type == "telnet":
await self._wrap_telnet_proxy(self._internal_console_port, self.console)
log.info("New Telnet proxy server for console started (internal port = {}, external port = {})".format(self._internal_console_port,
self.console))
if self._wrap_aux and self._aux_type == "telnet":
await self._wrap_telnet_proxy(self._internal_aux_port, self.aux)
log.info("New Telnet proxy server for auxiliary console started (internal port = {}, external port = {})".format(self._internal_aux_port,
self.aux))
async def stop_wrap_console(self):
"""
Stops the telnet proxy.
Stops the telnet proxy servers.
"""
if self._wrapper_telnet_server:
self._wrap_console_writer.close()
if sys.version_info >= (3, 7, 0):
try:
await self._wrap_console_writer.wait_closed()
except ConnectionResetError:
pass
self._wrapper_telnet_server.close()
await self._wrapper_telnet_server.wait_closed()
self._wrapper_telnet_server = None
for telnet_proxy_server in self._wrapper_telnet_servers:
telnet_proxy_server.close()
await telnet_proxy_server.wait_closed()
self._wrapper_telnet_servers = []
async def reset_wrap_console(self):
"""
@@ -492,22 +513,6 @@ class BaseNode:
return ws
@property
def allocate_aux(self):
"""
:returns: Boolean allocate or not an aux console
"""
return self._allocate_aux
@allocate_aux.setter
def allocate_aux(self, allocate_aux):
"""
:returns: Boolean allocate or not an aux console
"""
self._allocate_aux = allocate_aux
@property
def aux(self):
"""
@@ -526,18 +531,25 @@ class BaseNode:
:params aux: Console port (integer) or None to free the port
"""
if aux == self._aux:
if aux == self._aux or self._aux_type == "none":
return
if self._aux_type == "vnc" and aux is not None and aux < 5900:
raise NodeError("VNC auxiliary console require a port superior or equal to 5900, current port is {}".format(aux))
if self._aux:
self._manager.port_manager.release_tcp_port(self._aux, self._project)
self._aux = None
if aux is not None:
self._aux = self._manager.port_manager.reserve_tcp_port(aux, self._project)
log.info("{module}: '{name}' [{id}]: aux port set to {port}".format(module=self.manager.module_name,
name=self.name,
id=self.id,
port=aux))
if self._aux_type == "vnc":
self._aux = self._manager.port_manager.reserve_tcp_port(aux, self._project, port_range_start=5900, port_range_end=6000)
else:
self._aux = self._manager.port_manager.reserve_tcp_port(aux, self._project)
log.info("{module}: '{name}' [{id}]: auxiliary console port set to {port}".format(module=self.manager.module_name,
name=self.name,
id=self.id,
port=aux))
@property
def console(self):
@@ -625,6 +637,43 @@ class BaseNode:
console_type=console_type,
console=self.console))
@property
def aux_type(self):
"""
Returns the auxiliary console type for this node.
:returns: aux type (string)
"""
return self._aux_type
@aux_type.setter
def aux_type(self, aux_type):
"""
Sets the auxiliary console type for this node.
:param aux_type: console type (string)
"""
print("SET AUX TYPE", aux_type)
if aux_type != self._aux_type:
# get a new port if the aux type change
if self._aux:
self._manager.port_manager.release_tcp_port(self._aux, self._project)
if aux_type == "none":
# no need to allocate a port when the auxiliary console type is none
self._aux = None
elif aux_type == "vnc":
# VNC is a special case and the range must be 5900-6000
self._aux = self._manager.port_manager.get_free_tcp_port(self._project, 5900, 6000)
else:
self._aux = self._manager.port_manager.get_free_tcp_port(self._project)
self._aux_type = aux_type
log.info("{module}: '{name}' [{id}]: console type set to {aux_type} (auxiliary console port is {aux})".format(module=self.manager.module_name,
name=self.name,
id=self.id,
aux_type=aux_type,
aux=self.aux))
@property
def ubridge(self):
"""
+6 -4
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@@ -60,8 +60,9 @@ class DockerVM(BaseNode):
:param manager: Manager instance
:param image: Docker image
:param console: TCP console port
:param console_type: Console type
:param console_type: console type
:param aux: TCP aux console port
:param aux_type: auxiliary console type
:param console_resolution: Resolution of the VNC display
:param console_http_port: Port to redirect HTTP queries
:param console_http_path: Url part with the path of the web interface
@@ -70,10 +71,10 @@ class DockerVM(BaseNode):
"""
def __init__(self, name, node_id, project, manager, image, console=None, aux=None, start_command=None,
adapters=None, environment=None, console_type="telnet", console_resolution="1024x768",
adapters=None, environment=None, console_type="telnet", aux_type="none", console_resolution="1024x768",
console_http_port=80, console_http_path="/", extra_hosts=None, extra_volumes=[]):
super().__init__(name, node_id, project, manager, console=console, aux=aux, allocate_aux=True, console_type=console_type)
super().__init__(name, node_id, project, manager, console=console, console_type=console_type, aux=aux, aux_type=aux_type)
# force the latest image if no version is specified
if ":" not in image:
@@ -129,6 +130,7 @@ class DockerVM(BaseNode):
"console_http_port": self.console_http_port,
"console_http_path": self.console_http_path,
"aux": self.aux,
"aux_type": self.aux_type,
"start_command": self.start_command,
"status": self.status,
"environment": self.environment,
@@ -546,7 +548,7 @@ class DockerVM(BaseNode):
elif self.console_type == "http" or self.console_type == "https":
await self._start_http()
if self.allocate_aux:
if self.aux_type != "none":
await self._start_aux()
self._permissions_fixed = False
+4
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@@ -527,6 +527,10 @@ class Dynamips(BaseManager):
if usage is not None and usage != vm.usage:
vm.usage = usage
aux_type = settings.get("aux_type")
if aux_type is not None and aux_type != vm.aux_type:
vm.aux_type = aux_type
# update the configs if needed
await self.set_vm_configs(vm, settings)
+4 -2
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@@ -40,15 +40,17 @@ class C1700(Router):
:param manager: Parent VM Manager
:param dynamips_id: ID to use with Dynamips
:param console: console port
:param console_type: console type
:param aux: auxiliary console port
:param aux_type: auxiliary console type
:param chassis: chassis for this router:
1720, 1721, 1750, 1751 or 1760 (default = 1720).
1710 is not supported.
"""
def __init__(self, name, node_id, project, manager, dynamips_id, console=None, console_type="telnet", aux=None, chassis="1720"):
def __init__(self, name, node_id, project, manager, dynamips_id, console=None, console_type="telnet", aux=None, aux_type="none", chassis="1720"):
super().__init__(name, node_id, project, manager, dynamips_id, console, console_type, aux, platform="c1700")
super().__init__(name, node_id, project, manager, dynamips_id, console, console_type, aux, aux_type, platform="c1700")
# Set default values for this platform (must be the same as Dynamips)
self._ram = 64
+4 -2
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@@ -42,7 +42,9 @@ class C2600(Router):
:param manager: Parent VM Manager
:param dynamips_id: ID to use with Dynamips
:param console: console port
:param console_type: console type
:param aux: auxiliary console port
:param aux_type: auxiliary console type
:param chassis: chassis for this router:
2610, 2611, 2620, 2621, 2610XM, 2611XM
2620XM, 2621XM, 2650XM or 2651XM (default = 2610).
@@ -61,9 +63,9 @@ class C2600(Router):
"2650XM": C2600_MB_1FE,
"2651XM": C2600_MB_2FE}
def __init__(self, name, node_id, project, manager, dynamips_id, console=None, console_type="telnet", aux=None, chassis="2610"):
def __init__(self, name, node_id, project, manager, dynamips_id, console=None, console_type="telnet", aux=None, aux_type="none", chassis="2610"):
super().__init__(name, node_id, project, manager, dynamips_id, console, console_type, aux, platform="c2600")
super().__init__(name, node_id, project, manager, dynamips_id, console, console_type, aux, aux_type, platform="c2600")
# Set default values for this platform (must be the same as Dynamips)
self._ram = 64
+4 -2
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@@ -40,12 +40,14 @@ class C2691(Router):
:param manager: Parent VM Manager
:param dynamips_id: ID to use with Dynamips
:param console: console port
:param console_type: console type
:param aux: auxiliary console port
:param aux_type: auxiliary console type
"""
def __init__(self, name, node_id, project, manager, dynamips_id, console=None, console_type="telnet", aux=None, chassis=None):
def __init__(self, name, node_id, project, manager, dynamips_id, console=None, console_type="telnet", aux=None, aux_type="none", chassis=None):
super().__init__(name, node_id, project, manager, dynamips_id, console, console_type, aux, platform="c2691")
super().__init__(name, node_id, project, manager, dynamips_id, console, console_type, aux, aux_type, platform="c2691")
# Set default values for this platform (must be the same as Dynamips)
self._ram = 128
+4 -2
View File
@@ -39,14 +39,16 @@ class C3600(Router):
:param manager: Parent VM Manager
:param dynamips_id: ID to use with Dynamips
:param console: console port
:param console_type: console type
:param aux: auxiliary console port
:param aux_type: auxiliary console type
:param chassis: chassis for this router:
3620, 3640 or 3660 (default = 3640).
"""
def __init__(self, name, node_id, project, manager, dynamips_id, console=None, console_type="telnet", aux=None, chassis="3640"):
def __init__(self, name, node_id, project, manager, dynamips_id, console=None, console_type="telnet", aux=None, aux_type="none", chassis="3640"):
super().__init__(name, node_id, project, manager, dynamips_id, console, console_type, aux, platform="c3600")
super().__init__(name, node_id, project, manager, dynamips_id, console, console_type, aux, aux_type, platform="c3600")
# Set default values for this platform (must be the same as Dynamips)
self._ram = 128
+4 -2
View File
@@ -40,12 +40,14 @@ class C3725(Router):
:param manager: Parent VM Manager
:param dynamips_id: ID to use with Dynamips
:param console: console port
:param console_type: console type
:param aux: auxiliary console port
:param aux_type: auxiliary console type
"""
def __init__(self, name, node_id, project, manager, dynamips_id, console=None, console_type="telnet", aux=None, chassis=None):
def __init__(self, name, node_id, project, manager, dynamips_id, console=None, console_type="telnet", aux=None, aux_type="none", chassis=None):
super().__init__(name, node_id, project, manager, dynamips_id, console, console_type, aux, platform="c3725")
super().__init__(name, node_id, project, manager, dynamips_id, console, console_type, aux, aux_type, platform="c3725")
# Set default values for this platform (must be the same as Dynamips)
self._ram = 128
+4 -2
View File
@@ -40,12 +40,14 @@ class C3745(Router):
:param manager: Parent VM Manager
:param dynamips_id: ID to use with Dynamips
:param console: console port
:param console_type: console type
:param aux: auxiliary console port
:param aux_type: auxiliary console type
"""
def __init__(self, name, node_id, project, manager, dynamips_id, console=None, console_type="telnet", aux=None, chassis=None):
def __init__(self, name, node_id, project, manager, dynamips_id, console=None, console_type="telnet", aux=None, aux_type="none", chassis=None):
super().__init__(name, node_id, project, manager, dynamips_id, console, console_type, aux, platform="c3745")
super().__init__(name, node_id, project, manager, dynamips_id, console, console_type, aux, aux_type, platform="c3745")
# Set default values for this platform (must be the same as Dynamips)
self._ram = 128
+4 -2
View File
@@ -42,13 +42,15 @@ class C7200(Router):
:param manager: Parent VM Manager
:param dynamips_id: ID to use with Dynamips
:param console: console port
:param console_type: console type
:param aux: auxiliary console port
:param aux_type: auxiliary console type
:param npe: Default NPE
"""
def __init__(self, name, node_id, project, manager, dynamips_id, console=None, console_type="telnet", aux=None, npe="npe-400", chassis=None):
def __init__(self, name, node_id, project, manager, dynamips_id, console=None, console_type="telnet", aux=None, aux_type="none", npe="npe-400", chassis=None):
super().__init__(name, node_id, project, manager, dynamips_id, console, console_type, aux, platform="c7200")
super().__init__(name, node_id, project, manager, dynamips_id, console, console_type, aux, aux_type, platform="c7200")
# Set default values for this platform (must be the same as Dynamips)
self._ram = 256
+7 -5
View File
@@ -52,7 +52,9 @@ class Router(BaseNode):
:param manager: Parent VM Manager
:param dynamips_id: ID to use with Dynamips
:param console: console port
:param console_type: console type
:param aux: auxiliary console port
:param aux_type: auxiliary console type
:param platform: Platform of this router
"""
@@ -61,9 +63,9 @@ class Router(BaseNode):
2: "running",
3: "suspended"}
def __init__(self, name, node_id, project, manager, dynamips_id=None, console=None, console_type="telnet", aux=None, platform="c7200", hypervisor=None, ghost_flag=False):
def __init__(self, name, node_id, project, manager, dynamips_id=None, console=None, console_type="telnet", aux=None, aux_type="none", platform="c7200", hypervisor=None, ghost_flag=False):
super().__init__(name, node_id, project, manager, console=console, console_type=console_type, aux=aux, allocate_aux=aux)
super().__init__(name, node_id, project, manager, console=console, console_type=console_type, aux=aux, aux_type=aux_type)
self._working_directory = os.path.join(self.project.module_working_directory(self.manager.module_name.lower()), self.id)
try:
@@ -166,6 +168,7 @@ class Router(BaseNode):
"console": self.console,
"console_type": self.console_type,
"aux": self.aux,
"aux_type": self.aux_type,
"mac_addr": self._mac_addr,
"system_id": self._system_id}
@@ -223,15 +226,14 @@ class Router(BaseNode):
platform=self._platform,
id=self._id))
if self._console:
if self._console is not None:
await self._hypervisor.send('vm set_con_tcp_port "{name}" {console}'.format(name=self._name, console=self._console))
if self.aux is not None:
await self._hypervisor.send('vm set_aux_tcp_port "{name}" {aux}'.format(name=self._name, aux=self.aux))
# get the default base MAC address
mac_addr = await self._hypervisor.send('{platform} get_mac_addr "{name}"'.format(platform=self._platform,
name=self._name))
mac_addr = await self._hypervisor.send('{platform} get_mac_addr "{name}"'.format(platform=self._platform, name=self._name))
self._mac_addr = mac_addr[0]
self._hypervisor.devices.append(self)
+46 -24
View File
@@ -76,9 +76,9 @@ class QemuVM(BaseNode):
:param platform: Platform to emulate
"""
def __init__(self, name, node_id, project, manager, linked_clone=True, qemu_path=None, console=None, console_type="telnet", platform=None):
def __init__(self, name, node_id, project, manager, linked_clone=True, qemu_path=None, console=None, console_type="telnet", aux=None, aux_type="none", platform=None):
super().__init__(name, node_id, project, manager, console=console, console_type=console_type, linked_clone=linked_clone, wrap_console=True)
super().__init__(name, node_id, project, manager, console=console, console_type=console_type, linked_clone=linked_clone, aux=aux, aux_type=aux_type, wrap_console=True, wrap_aux=True)
server_config = manager.config.get_section_config("Server")
self._host = server_config.get("host", "127.0.0.1")
self._monitor_host = server_config.get("monitor_host", "127.0.0.1")
@@ -1658,24 +1658,24 @@ class QemuVM(BaseNode):
super(QemuVM, QemuVM).console_type.__set__(self, new_console_type)
def _serial_options(self):
def _serial_options(self, internal_console_port, external_console_port):
if self._console:
return ["-serial", "telnet:127.0.0.1:{},server,nowait".format(self._internal_console_port)]
if external_console_port:
return ["-serial", "telnet:127.0.0.1:{},server,nowait".format(internal_console_port)]
else:
return []
def _vnc_options(self):
def _vnc_options(self, port):
if self._console:
vnc_port = self._console - 5900 # subtract by 5900 to get the display number
if port:
vnc_port = port - 5900 # subtract by 5900 to get the display number
return ["-vnc", "{}:{}".format(self._manager.port_manager.console_host, vnc_port)]
else:
return []
def _spice_options(self):
def _spice_options(self, port):
if self._console:
if port:
console_host = self._manager.port_manager.console_host
if console_host == "0.0.0.0":
try:
@@ -1687,15 +1687,15 @@ class QemuVM(BaseNode):
except OSError as e:
raise QemuError("Could not check if IPv6 is enabled: {}".format(e))
return ["-spice",
"addr={},port={},disable-ticketing".format(console_host, self._console),
"addr={},port={},disable-ticketing".format(console_host, port),
"-vga", "qxl"]
else:
return []
def _spice_with_agent_options(self):
def _spice_with_agent_options(self, port):
spice_options = self._spice_options()
if self._console:
spice_options = self._spice_options(port)
if spice_options:
# agent options (mouse/screen)
agent_options = ["-device", "virtio-serial",
"-chardev", "spicevmc,id=vdagent,debug=0,name=vdagent",
@@ -1707,6 +1707,36 @@ class QemuVM(BaseNode):
spice_options.extend(folder_sharing_options)
return spice_options
def _console_options(self):
if self._console_type == "telnet" and self._wrap_console:
return self._serial_options(self._internal_console_port, self.console)
elif self._console_type == "vnc":
return self._vnc_options(self.console)
elif self._console_type == "spice":
return self._spice_options(self.console)
elif self._console_type == "spice+agent":
return self._spice_with_agent_options(self.console)
elif self._console_type != "none":
raise QemuError("Console type {} is unknown".format(self._console_type))
def _aux_options(self):
if self._aux_type != "none" and self._aux_type == self._console_type:
raise QemuError("Auxiliary console type {} cannot be the same as console type".format(self._aux_type))
if self._aux_type == "telnet" and self._wrap_aux:
return self._serial_options(self._internal_aux_port, self.aux)
elif self._aux_type == "vnc":
return self._vnc_options(self.aux)
elif self._aux_type == "spice":
return self._spice_options(self.aux)
elif self._aux_type == "spice+agent":
return self._spice_with_agent_options(self.aux)
elif self._aux_type != "none":
raise QemuError("Auxiliary console type {} is unknown".format(self._aux_type))
return []
def _monitor_options(self):
if self._monitor:
@@ -2408,16 +2438,8 @@ class QemuVM(BaseNode):
command.extend(self._linux_boot_options())
if "-uuid" not in additional_options:
command.extend(["-uuid", self._id])
if self._console_type == "telnet":
command.extend(self._serial_options())
elif self._console_type == "vnc":
command.extend(self._vnc_options())
elif self._console_type == "spice":
command.extend(self._spice_options())
elif self._console_type == "spice+agent":
command.extend(self._spice_with_agent_options())
elif self._console_type != "none":
raise QemuError("Console type {} is unknown".format(self._console_type))
command.extend(self._console_options())
command.extend(self._aux_options())
command.extend(self._monitor_options())
command.extend((await self._network_options()))
if self.on_close != "save_vm_state":