Merge pull request #126713 from blaggacao/nixos-test-ref/05-class-ify-test-driver
nixos test ref/05 class ify test driver
This commit is contained in:
commit
d68f1e43df
@ -21,7 +21,6 @@ import shutil
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import socket
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import socket
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import subprocess
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import subprocess
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import sys
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import sys
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import telnetlib
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import tempfile
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import tempfile
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import time
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import time
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import unicodedata
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import unicodedata
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@ -89,55 +88,6 @@ CHAR_TO_KEY = {
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")": "shift-0x0B",
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")": "shift-0x0B",
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}
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}
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global log, machines, test_script
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def eprint(*args: object, **kwargs: Any) -> None:
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print(*args, file=sys.stderr, **kwargs)
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def make_command(args: list) -> str:
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return " ".join(map(shlex.quote, (map(str, args))))
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def create_vlan(vlan_nr: str) -> Tuple[str, str, "subprocess.Popen[bytes]", Any]:
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log.log("starting VDE switch for network {}".format(vlan_nr))
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vde_socket = tempfile.mkdtemp(
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prefix="nixos-test-vde-", suffix="-vde{}.ctl".format(vlan_nr)
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)
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pty_master, pty_slave = pty.openpty()
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vde_process = subprocess.Popen(
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["vde_switch", "-s", vde_socket, "--dirmode", "0700"],
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stdin=pty_slave,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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shell=False,
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)
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fd = os.fdopen(pty_master, "w")
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fd.write("version\n")
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# TODO: perl version checks if this can be read from
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# an if not, dies. we could hang here forever. Fix it.
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assert vde_process.stdout is not None
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vde_process.stdout.readline()
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if not os.path.exists(os.path.join(vde_socket, "ctl")):
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raise Exception("cannot start vde_switch")
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return (vlan_nr, vde_socket, vde_process, fd)
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def retry(fn: Callable, timeout: int = 900) -> None:
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"""Call the given function repeatedly, with 1 second intervals,
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until it returns True or a timeout is reached.
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"""
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for _ in range(timeout):
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if fn(False):
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return
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time.sleep(1)
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if not fn(True):
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raise Exception(f"action timed out after {timeout} seconds")
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class Logger:
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class Logger:
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def __init__(self) -> None:
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def __init__(self) -> None:
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@ -151,6 +101,10 @@ class Logger:
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self._print_serial_logs = True
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self._print_serial_logs = True
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@staticmethod
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def _eprint(*args: object, **kwargs: Any) -> None:
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print(*args, file=sys.stderr, **kwargs)
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def close(self) -> None:
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def close(self) -> None:
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self.xml.endElement("logfile")
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self.xml.endElement("logfile")
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self.xml.endDocument()
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self.xml.endDocument()
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@ -169,15 +123,27 @@ class Logger:
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self.xml.characters(message)
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self.xml.characters(message)
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self.xml.endElement("line")
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self.xml.endElement("line")
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def info(self, *args, **kwargs) -> None: # type: ignore
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self.log(*args, **kwargs)
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def warning(self, *args, **kwargs) -> None: # type: ignore
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self.log(*args, **kwargs)
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def error(self, *args, **kwargs) -> None: # type: ignore
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self.log(*args, **kwargs)
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sys.exit(1)
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def log(self, message: str, attributes: Dict[str, str] = {}) -> None:
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def log(self, message: str, attributes: Dict[str, str] = {}) -> None:
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eprint(self.maybe_prefix(message, attributes))
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self._eprint(self.maybe_prefix(message, attributes))
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self.drain_log_queue()
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self.drain_log_queue()
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self.log_line(message, attributes)
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self.log_line(message, attributes)
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def log_serial(self, message: str, machine: str) -> None:
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def log_serial(self, message: str, machine: str) -> None:
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self.enqueue({"msg": message, "machine": machine, "type": "serial"})
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self.enqueue({"msg": message, "machine": machine, "type": "serial"})
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if self._print_serial_logs:
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if self._print_serial_logs:
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eprint(Style.DIM + "{} # {}".format(machine, message) + Style.RESET_ALL)
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self._eprint(
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Style.DIM + "{} # {}".format(machine, message) + Style.RESET_ALL
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)
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def enqueue(self, item: Dict[str, str]) -> None:
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def enqueue(self, item: Dict[str, str]) -> None:
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self.queue.put(item)
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self.queue.put(item)
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@ -194,7 +160,7 @@ class Logger:
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@contextmanager
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@contextmanager
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def nested(self, message: str, attributes: Dict[str, str] = {}) -> Iterator[None]:
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def nested(self, message: str, attributes: Dict[str, str] = {}) -> Iterator[None]:
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eprint(self.maybe_prefix(message, attributes))
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self._eprint(self.maybe_prefix(message, attributes))
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self.xml.startElement("nest", attrs={})
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self.xml.startElement("nest", attrs={})
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self.xml.startElement("head", attributes)
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self.xml.startElement("head", attributes)
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@ -211,6 +177,27 @@ class Logger:
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self.xml.endElement("nest")
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self.xml.endElement("nest")
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rootlog = Logger()
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def make_command(args: list) -> str:
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return " ".join(map(shlex.quote, (map(str, args))))
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def retry(fn: Callable, timeout: int = 900) -> None:
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"""Call the given function repeatedly, with 1 second intervals,
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until it returns True or a timeout is reached.
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"""
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for _ in range(timeout):
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if fn(False):
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return
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time.sleep(1)
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if not fn(True):
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raise Exception(f"action timed out after {timeout} seconds")
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def _perform_ocr_on_screenshot(
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def _perform_ocr_on_screenshot(
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screenshot_path: str, model_ids: Iterable[int]
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screenshot_path: str, model_ids: Iterable[int]
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) -> List[str]:
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) -> List[str]:
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@ -242,113 +229,256 @@ def _perform_ocr_on_screenshot(
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return model_results
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return model_results
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class StartCommand:
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"""The Base Start Command knows how to append the necesary
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runtime qemu options as determined by a particular test driver
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run. Any such start command is expected to happily receive and
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append additional qemu args.
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"""
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_cmd: str
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def cmd(
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self,
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monitor_socket_path: pathlib.Path,
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shell_socket_path: pathlib.Path,
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allow_reboot: bool = False, # TODO: unused, legacy?
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) -> str:
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display_opts = ""
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display_available = any(x in os.environ for x in ["DISPLAY", "WAYLAND_DISPLAY"])
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if not display_available:
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display_opts += " -nographic"
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# qemu options
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qemu_opts = ""
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qemu_opts += (
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""
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if allow_reboot
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else " -no-reboot"
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" -device virtio-serial"
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" -device virtconsole,chardev=shell"
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" -device virtio-rng-pci"
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" -serial stdio"
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)
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# TODO: qemu script already catpures this env variable, legacy?
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qemu_opts += " " + os.environ.get("QEMU_OPTS", "")
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return (
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f"{self._cmd}"
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f" -monitor unix:{monitor_socket_path}"
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f" -chardev socket,id=shell,path={shell_socket_path}"
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f"{qemu_opts}"
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f"{display_opts}"
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)
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@staticmethod
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def build_environment(
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state_dir: pathlib.Path,
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shared_dir: pathlib.Path,
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) -> dict:
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# We make a copy to not update the current environment
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env = dict(os.environ)
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env.update(
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{
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"TMPDIR": str(state_dir),
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"SHARED_DIR": str(shared_dir),
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"USE_TMPDIR": "1",
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}
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)
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return env
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def run(
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self,
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state_dir: pathlib.Path,
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shared_dir: pathlib.Path,
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monitor_socket_path: pathlib.Path,
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shell_socket_path: pathlib.Path,
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) -> subprocess.Popen:
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return subprocess.Popen(
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self.cmd(monitor_socket_path, shell_socket_path),
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stdin=subprocess.DEVNULL,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT,
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shell=True,
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cwd=state_dir,
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env=self.build_environment(state_dir, shared_dir),
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)
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class NixStartScript(StartCommand):
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"""A start script from nixos/modules/virtualiation/qemu-vm.nix
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that also satisfies the requirement of the BaseStartCommand.
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These Nix commands have the particular charactersitic that the
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machine name can be extracted out of them via a regex match.
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(Admittedly a _very_ implicit contract, evtl. TODO fix)
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"""
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def __init__(self, script: str):
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self._cmd = script
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@property
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def machine_name(self) -> str:
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match = re.search("run-(.+)-vm$", self._cmd)
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name = "machine"
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if match:
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name = match.group(1)
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return name
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class LegacyStartCommand(StartCommand):
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"""Used in some places to create an ad-hoc machine instead of
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using nix test instrumentation + module system for that purpose.
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Legacy.
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"""
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def __init__(
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self,
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netBackendArgs: Optional[str] = None,
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netFrontendArgs: Optional[str] = None,
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hda: Optional[Tuple[pathlib.Path, str]] = None,
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cdrom: Optional[str] = None,
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usb: Optional[str] = None,
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bios: Optional[str] = None,
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qemuFlags: Optional[str] = None,
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):
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self._cmd = "qemu-kvm -m 384"
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# networking
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net_backend = "-netdev user,id=net0"
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net_frontend = "-device virtio-net-pci,netdev=net0"
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if netBackendArgs is not None:
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net_backend += "," + netBackendArgs
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if netFrontendArgs is not None:
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net_frontend += "," + netFrontendArgs
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self._cmd += f" {net_backend} {net_frontend}"
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# hda
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hda_cmd = ""
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if hda is not None:
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hda_path = hda[0].resolve()
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hda_interface = hda[1]
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if hda_interface == "scsi":
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hda_cmd += (
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f" -drive id=hda,file={hda_path},werror=report,if=none"
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" -device scsi-hd,drive=hda"
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)
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else:
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hda_cmd += f" -drive file={hda_path},if={hda_interface},werror=report"
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self._cmd += hda_cmd
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# cdrom
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if cdrom is not None:
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self._cmd += f" -cdrom {cdrom}"
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# usb
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usb_cmd = ""
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if usb is not None:
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# https://github.com/qemu/qemu/blob/master/docs/usb2.txt
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usb_cmd += (
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" -device usb-ehci"
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f" -drive id=usbdisk,file={usb},if=none,readonly"
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" -device usb-storage,drive=usbdisk "
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)
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self._cmd += usb_cmd
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# bios
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if bios is not None:
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self._cmd += f" -bios {bios}"
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# qemu flags
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if qemuFlags is not None:
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self._cmd += f" {qemuFlags}"
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class Machine:
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class Machine:
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"""A handle to the machine with this name, that also knows how to manage
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the machine lifecycle with the help of a start script / command."""
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name: str
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tmp_dir: pathlib.Path
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shared_dir: pathlib.Path
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state_dir: pathlib.Path
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monitor_path: pathlib.Path
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shell_path: pathlib.Path
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start_command: StartCommand
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keep_vm_state: bool
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allow_reboot: bool
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process: Optional[subprocess.Popen] = None
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pid: Optional[int] = None
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monitor: Optional[socket.socket] = None
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shell: Optional[socket.socket] = None
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booted: bool = False
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connected: bool = False
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# Store last serial console lines for use
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# of wait_for_console_text
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last_lines: Queue = Queue()
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def __repr__(self) -> str:
|
def __repr__(self) -> str:
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return f"<Machine '{self.name}'>"
|
return f"<Machine '{self.name}'>"
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|
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def __init__(self, args: Dict[str, Any]) -> None:
|
def __init__(
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if "name" in args:
|
self,
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self.name = args["name"]
|
tmp_dir: pathlib.Path,
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else:
|
start_command: StartCommand,
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self.name = "machine"
|
name: str = "machine",
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cmd = args.get("startCommand", None)
|
keep_vm_state: bool = False,
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if cmd:
|
allow_reboot: bool = False,
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match = re.search("run-(.+)-vm$", cmd)
|
) -> None:
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if match:
|
self.tmp_dir = tmp_dir
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self.name = match.group(1)
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self.keep_vm_state = keep_vm_state
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self.logger = args["log"]
|
self.allow_reboot = allow_reboot
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self.script = args.get("startCommand", self.create_startcommand(args))
|
self.name = name
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self.start_command = start_command
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|
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tmp_dir = os.environ.get("TMPDIR", tempfile.gettempdir())
|
# set up directories
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|
self.shared_dir = self.tmp_dir / "shared-xchg"
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|
self.shared_dir.mkdir(mode=0o700, exist_ok=True)
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|
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def create_dir(name: str) -> str:
|
self.state_dir = self.tmp_dir / f"vm-state-{self.name}"
|
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path = os.path.join(tmp_dir, name)
|
self.monitor_path = self.state_dir / "monitor"
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os.makedirs(path, mode=0o700, exist_ok=True)
|
self.shell_path = self.state_dir / "shell"
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return path
|
if (not self.keep_vm_state) and self.state_dir.exists():
|
||||||
|
|
||||||
self.state_dir = os.path.join(tmp_dir, f"vm-state-{self.name}")
|
|
||||||
if not args.get("keepVmState", False):
|
|
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self.cleanup_statedir()
|
self.cleanup_statedir()
|
||||||
os.makedirs(self.state_dir, mode=0o700, exist_ok=True)
|
self.state_dir.mkdir(mode=0o700, exist_ok=True)
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self.shared_dir = create_dir("shared-xchg")
|
|
||||||
|
|
||||||
self.booted = False
|
|
||||||
self.connected = False
|
|
||||||
self.pid: Optional[int] = None
|
|
||||||
self.socket = None
|
|
||||||
self.monitor: Optional[socket.socket] = None
|
|
||||||
self.allow_reboot = args.get("allowReboot", False)
|
|
||||||
|
|
||||||
@staticmethod
|
@staticmethod
|
||||||
def create_startcommand(args: Dict[str, str]) -> str:
|
def create_startcommand(args: Dict[str, str]) -> StartCommand:
|
||||||
net_backend = "-netdev user,id=net0"
|
rootlog.warning(
|
||||||
net_frontend = "-device virtio-net-pci,netdev=net0"
|
"Using legacy create_startcommand(),"
|
||||||
|
"please use proper nix test vm instrumentation, instead"
|
||||||
if "netBackendArgs" in args:
|
"to generate the appropriate nixos test vm qemu startup script"
|
||||||
net_backend += "," + args["netBackendArgs"]
|
|
||||||
|
|
||||||
if "netFrontendArgs" in args:
|
|
||||||
net_frontend += "," + args["netFrontendArgs"]
|
|
||||||
|
|
||||||
start_command = (
|
|
||||||
args.get("qemuBinary", "qemu-kvm")
|
|
||||||
+ " -m 384 "
|
|
||||||
+ net_backend
|
|
||||||
+ " "
|
|
||||||
+ net_frontend
|
|
||||||
+ " $QEMU_OPTS "
|
|
||||||
)
|
)
|
||||||
|
hda = None
|
||||||
if "hda" in args:
|
if args.get("hda"):
|
||||||
hda_path = os.path.abspath(args["hda"])
|
hda_arg: str = args.get("hda", "")
|
||||||
if args.get("hdaInterface", "") == "scsi":
|
hda_arg_path: pathlib.Path = pathlib.Path(hda_arg)
|
||||||
start_command += (
|
hda = (hda_arg_path, args.get("hdaInterface", ""))
|
||||||
"-drive id=hda,file="
|
return LegacyStartCommand(
|
||||||
+ hda_path
|
netBackendArgs=args.get("netBackendArgs"),
|
||||||
+ ",werror=report,if=none "
|
netFrontendArgs=args.get("netFrontendArgs"),
|
||||||
+ "-device scsi-hd,drive=hda "
|
hda=hda,
|
||||||
|
cdrom=args.get("cdrom"),
|
||||||
|
usb=args.get("usb"),
|
||||||
|
bios=args.get("bios"),
|
||||||
|
qemuFlags=args.get("qemuFlags"),
|
||||||
)
|
)
|
||||||
else:
|
|
||||||
start_command += (
|
|
||||||
"-drive file="
|
|
||||||
+ hda_path
|
|
||||||
+ ",if="
|
|
||||||
+ args["hdaInterface"]
|
|
||||||
+ ",werror=report "
|
|
||||||
)
|
|
||||||
|
|
||||||
if "cdrom" in args:
|
|
||||||
start_command += "-cdrom " + args["cdrom"] + " "
|
|
||||||
|
|
||||||
if "usb" in args:
|
|
||||||
# https://github.com/qemu/qemu/blob/master/docs/usb2.txt
|
|
||||||
start_command += (
|
|
||||||
"-device usb-ehci -drive "
|
|
||||||
+ "id=usbdisk,file="
|
|
||||||
+ args["usb"]
|
|
||||||
+ ",if=none,readonly "
|
|
||||||
+ "-device usb-storage,drive=usbdisk "
|
|
||||||
)
|
|
||||||
if "bios" in args:
|
|
||||||
start_command += "-bios " + args["bios"] + " "
|
|
||||||
|
|
||||||
start_command += args.get("qemuFlags", "")
|
|
||||||
|
|
||||||
return start_command
|
|
||||||
|
|
||||||
def is_up(self) -> bool:
|
def is_up(self) -> bool:
|
||||||
return self.booted and self.connected
|
return self.booted and self.connected
|
||||||
|
|
||||||
def log(self, msg: str) -> None:
|
def log(self, msg: str) -> None:
|
||||||
self.logger.log(msg, {"machine": self.name})
|
rootlog.log(msg, {"machine": self.name})
|
||||||
|
|
||||||
def log_serial(self, msg: str) -> None:
|
def log_serial(self, msg: str) -> None:
|
||||||
self.logger.log_serial(msg, self.name)
|
rootlog.log_serial(msg, self.name)
|
||||||
|
|
||||||
def nested(self, msg: str, attrs: Dict[str, str] = {}) -> _GeneratorContextManager:
|
def nested(self, msg: str, attrs: Dict[str, str] = {}) -> _GeneratorContextManager:
|
||||||
my_attrs = {"machine": self.name}
|
my_attrs = {"machine": self.name}
|
||||||
my_attrs.update(attrs)
|
my_attrs.update(attrs)
|
||||||
return self.logger.nested(msg, my_attrs)
|
return rootlog.nested(msg, my_attrs)
|
||||||
|
|
||||||
def wait_for_monitor_prompt(self) -> str:
|
def wait_for_monitor_prompt(self) -> str:
|
||||||
assert self.monitor is not None
|
assert self.monitor is not None
|
||||||
@ -446,6 +576,7 @@ class Machine:
|
|||||||
self.connect()
|
self.connect()
|
||||||
|
|
||||||
out_command = "( set -euo pipefail; {} ); echo '|!=EOF' $?\n".format(command)
|
out_command = "( set -euo pipefail; {} ); echo '|!=EOF' $?\n".format(command)
|
||||||
|
assert self.shell
|
||||||
self.shell.send(out_command.encode())
|
self.shell.send(out_command.encode())
|
||||||
|
|
||||||
output = ""
|
output = ""
|
||||||
@ -466,6 +597,8 @@ class Machine:
|
|||||||
Should only be used during test development, not in the production test."""
|
Should only be used during test development, not in the production test."""
|
||||||
self.connect()
|
self.connect()
|
||||||
self.log("Terminal is ready (there is no prompt):")
|
self.log("Terminal is ready (there is no prompt):")
|
||||||
|
|
||||||
|
assert self.shell
|
||||||
subprocess.run(
|
subprocess.run(
|
||||||
["socat", "READLINE", f"FD:{self.shell.fileno()}"],
|
["socat", "READLINE", f"FD:{self.shell.fileno()}"],
|
||||||
pass_fds=[self.shell.fileno()],
|
pass_fds=[self.shell.fileno()],
|
||||||
@ -534,6 +667,7 @@ class Machine:
|
|||||||
|
|
||||||
with self.nested("waiting for the VM to power off"):
|
with self.nested("waiting for the VM to power off"):
|
||||||
sys.stdout.flush()
|
sys.stdout.flush()
|
||||||
|
assert self.process
|
||||||
self.process.wait()
|
self.process.wait()
|
||||||
|
|
||||||
self.pid = None
|
self.pid = None
|
||||||
@ -611,6 +745,8 @@ class Machine:
|
|||||||
with self.nested("waiting for the VM to finish booting"):
|
with self.nested("waiting for the VM to finish booting"):
|
||||||
self.start()
|
self.start()
|
||||||
|
|
||||||
|
assert self.shell
|
||||||
|
|
||||||
tic = time.time()
|
tic = time.time()
|
||||||
self.shell.recv(1024)
|
self.shell.recv(1024)
|
||||||
# TODO: Timeout
|
# TODO: Timeout
|
||||||
@ -750,65 +886,35 @@ class Machine:
|
|||||||
|
|
||||||
self.log("starting vm")
|
self.log("starting vm")
|
||||||
|
|
||||||
def create_socket(path: str) -> socket.socket:
|
def clear(path: pathlib.Path) -> pathlib.Path:
|
||||||
if os.path.exists(path):
|
if path.exists():
|
||||||
os.unlink(path)
|
path.unlink()
|
||||||
|
return path
|
||||||
|
|
||||||
|
def create_socket(path: pathlib.Path) -> socket.socket:
|
||||||
s = socket.socket(family=socket.AF_UNIX, type=socket.SOCK_STREAM)
|
s = socket.socket(family=socket.AF_UNIX, type=socket.SOCK_STREAM)
|
||||||
s.bind(path)
|
s.bind(str(path))
|
||||||
s.listen(1)
|
s.listen(1)
|
||||||
return s
|
return s
|
||||||
|
|
||||||
monitor_path = os.path.join(self.state_dir, "monitor")
|
monitor_socket = create_socket(clear(self.monitor_path))
|
||||||
self.monitor_socket = create_socket(monitor_path)
|
shell_socket = create_socket(clear(self.shell_path))
|
||||||
|
self.process = self.start_command.run(
|
||||||
shell_path = os.path.join(self.state_dir, "shell")
|
self.state_dir,
|
||||||
self.shell_socket = create_socket(shell_path)
|
self.shared_dir,
|
||||||
|
self.monitor_path,
|
||||||
display_available = any(x in os.environ for x in ["DISPLAY", "WAYLAND_DISPLAY"])
|
self.shell_path,
|
||||||
qemu_options = (
|
|
||||||
" ".join(
|
|
||||||
[
|
|
||||||
"" if self.allow_reboot else "-no-reboot",
|
|
||||||
"-monitor unix:{}".format(monitor_path),
|
|
||||||
"-chardev socket,id=shell,path={}".format(shell_path),
|
|
||||||
"-device virtio-serial",
|
|
||||||
"-device virtconsole,chardev=shell",
|
|
||||||
"-device virtio-rng-pci",
|
|
||||||
"-serial stdio" if display_available else "-nographic",
|
|
||||||
]
|
|
||||||
)
|
)
|
||||||
+ " "
|
self.monitor, _ = monitor_socket.accept()
|
||||||
+ os.environ.get("QEMU_OPTS", "")
|
self.shell, _ = shell_socket.accept()
|
||||||
)
|
|
||||||
|
|
||||||
environment = dict(os.environ)
|
|
||||||
environment.update(
|
|
||||||
{
|
|
||||||
"TMPDIR": self.state_dir,
|
|
||||||
"SHARED_DIR": self.shared_dir,
|
|
||||||
"USE_TMPDIR": "1",
|
|
||||||
"QEMU_OPTS": qemu_options,
|
|
||||||
}
|
|
||||||
)
|
|
||||||
|
|
||||||
self.process = subprocess.Popen(
|
|
||||||
self.script,
|
|
||||||
stdin=subprocess.DEVNULL,
|
|
||||||
stdout=subprocess.PIPE,
|
|
||||||
stderr=subprocess.STDOUT,
|
|
||||||
shell=True,
|
|
||||||
cwd=self.state_dir,
|
|
||||||
env=environment,
|
|
||||||
)
|
|
||||||
self.monitor, _ = self.monitor_socket.accept()
|
|
||||||
self.shell, _ = self.shell_socket.accept()
|
|
||||||
|
|
||||||
# Store last serial console lines for use
|
# Store last serial console lines for use
|
||||||
# of wait_for_console_text
|
# of wait_for_console_text
|
||||||
self.last_lines: Queue = Queue()
|
self.last_lines: Queue = Queue()
|
||||||
|
|
||||||
def process_serial_output() -> None:
|
def process_serial_output() -> None:
|
||||||
assert self.process.stdout is not None
|
assert self.process
|
||||||
|
assert self.process.stdout
|
||||||
for _line in self.process.stdout:
|
for _line in self.process.stdout:
|
||||||
# Ignore undecodable bytes that may occur in boot menus
|
# Ignore undecodable bytes that may occur in boot menus
|
||||||
line = _line.decode(errors="ignore").replace("\r", "").rstrip()
|
line = _line.decode(errors="ignore").replace("\r", "").rstrip()
|
||||||
@ -825,15 +931,15 @@ class Machine:
|
|||||||
self.log("QEMU running (pid {})".format(self.pid))
|
self.log("QEMU running (pid {})".format(self.pid))
|
||||||
|
|
||||||
def cleanup_statedir(self) -> None:
|
def cleanup_statedir(self) -> None:
|
||||||
if os.path.isdir(self.state_dir):
|
|
||||||
shutil.rmtree(self.state_dir)
|
shutil.rmtree(self.state_dir)
|
||||||
self.logger.log(f"deleting VM state directory {self.state_dir}")
|
rootlog.log(f"deleting VM state directory {self.state_dir}")
|
||||||
self.logger.log("if you want to keep the VM state, pass --keep-vm-state")
|
rootlog.log("if you want to keep the VM state, pass --keep-vm-state")
|
||||||
|
|
||||||
def shutdown(self) -> None:
|
def shutdown(self) -> None:
|
||||||
if not self.booted:
|
if not self.booted:
|
||||||
return
|
return
|
||||||
|
|
||||||
|
assert self.shell
|
||||||
self.shell.send("poweroff\n".encode())
|
self.shell.send("poweroff\n".encode())
|
||||||
self.wait_for_shutdown()
|
self.wait_for_shutdown()
|
||||||
|
|
||||||
@ -908,41 +1014,215 @@ class Machine:
|
|||||||
"""Make the machine reachable."""
|
"""Make the machine reachable."""
|
||||||
self.send_monitor_command("set_link virtio-net-pci.1 on")
|
self.send_monitor_command("set_link virtio-net-pci.1 on")
|
||||||
|
|
||||||
|
def release(self) -> None:
|
||||||
def create_machine(args: Dict[str, Any]) -> Machine:
|
if self.pid is None:
|
||||||
args["log"] = log
|
return
|
||||||
return Machine(args)
|
rootlog.info(f"kill machine (pid {self.pid})")
|
||||||
|
assert self.process
|
||||||
|
assert self.shell
|
||||||
|
assert self.monitor
|
||||||
|
self.process.terminate()
|
||||||
|
self.shell.close()
|
||||||
|
self.monitor.close()
|
||||||
|
|
||||||
|
|
||||||
def start_all() -> None:
|
class VLan:
|
||||||
with log.nested("starting all VMs"):
|
"""This class handles a VLAN that the run-vm scripts identify via its
|
||||||
for machine in machines:
|
number handles. The network's lifetime equals the object's lifetime.
|
||||||
machine.start()
|
"""
|
||||||
|
|
||||||
|
nr: int
|
||||||
|
socket_dir: pathlib.Path
|
||||||
|
|
||||||
|
process: subprocess.Popen
|
||||||
|
pid: int
|
||||||
|
fd: io.TextIOBase
|
||||||
|
|
||||||
|
def __repr__(self) -> str:
|
||||||
|
return f"<Vlan Nr. {self.nr}>"
|
||||||
|
|
||||||
|
def __init__(self, nr: int, tmp_dir: pathlib.Path):
|
||||||
|
self.nr = nr
|
||||||
|
self.socket_dir = tmp_dir / f"vde{self.nr}.ctl"
|
||||||
|
|
||||||
|
# TODO: don't side-effect environment here
|
||||||
|
os.environ[f"QEMU_VDE_SOCKET_{self.nr}"] = str(self.socket_dir)
|
||||||
|
|
||||||
|
rootlog.info("start vlan")
|
||||||
|
pty_master, pty_slave = pty.openpty()
|
||||||
|
|
||||||
|
self.process = subprocess.Popen(
|
||||||
|
["vde_switch", "-s", self.socket_dir, "--dirmode", "0700"],
|
||||||
|
stdin=pty_slave,
|
||||||
|
stdout=subprocess.PIPE,
|
||||||
|
stderr=subprocess.PIPE,
|
||||||
|
shell=False,
|
||||||
|
)
|
||||||
|
self.pid = self.process.pid
|
||||||
|
self.fd = os.fdopen(pty_master, "w")
|
||||||
|
self.fd.write("version\n")
|
||||||
|
|
||||||
|
# TODO: perl version checks if this can be read from
|
||||||
|
# an if not, dies. we could hang here forever. Fix it.
|
||||||
|
assert self.process.stdout is not None
|
||||||
|
self.process.stdout.readline()
|
||||||
|
if not (self.socket_dir / "ctl").exists():
|
||||||
|
rootlog.error("cannot start vde_switch")
|
||||||
|
|
||||||
|
rootlog.info(f"running vlan (pid {self.pid})")
|
||||||
|
|
||||||
|
def __del__(self) -> None:
|
||||||
|
rootlog.info(f"kill vlan (pid {self.pid})")
|
||||||
|
self.fd.close()
|
||||||
|
self.process.terminate()
|
||||||
|
|
||||||
|
|
||||||
def join_all() -> None:
|
class Driver:
|
||||||
with log.nested("waiting for all VMs to finish"):
|
"""A handle to the driver that sets up the environment
|
||||||
for machine in machines:
|
and runs the tests"""
|
||||||
machine.wait_for_shutdown()
|
|
||||||
|
|
||||||
|
tests: str
|
||||||
|
vlans: List[VLan]
|
||||||
|
machines: List[Machine]
|
||||||
|
|
||||||
def run_tests(interactive: bool = False) -> None:
|
def __init__(
|
||||||
if interactive:
|
self,
|
||||||
ptpython.repl.embed(test_symbols(), {})
|
start_scripts: List[str],
|
||||||
else:
|
vlans: List[int],
|
||||||
test_script()
|
tests: str,
|
||||||
|
keep_vm_state: bool = False,
|
||||||
|
):
|
||||||
|
self.tests = tests
|
||||||
|
|
||||||
|
tmp_dir = pathlib.Path(os.environ.get("TMPDIR", tempfile.gettempdir()))
|
||||||
|
tmp_dir.mkdir(mode=0o700, exist_ok=True)
|
||||||
|
|
||||||
|
with rootlog.nested("start all VLans"):
|
||||||
|
self.vlans = [VLan(nr, tmp_dir) for nr in vlans]
|
||||||
|
|
||||||
|
def cmd(scripts: List[str]) -> Iterator[NixStartScript]:
|
||||||
|
for s in scripts:
|
||||||
|
yield NixStartScript(s)
|
||||||
|
|
||||||
|
self.machines = [
|
||||||
|
Machine(
|
||||||
|
start_command=cmd,
|
||||||
|
keep_vm_state=keep_vm_state,
|
||||||
|
name=cmd.machine_name,
|
||||||
|
tmp_dir=tmp_dir,
|
||||||
|
)
|
||||||
|
for cmd in cmd(start_scripts)
|
||||||
|
]
|
||||||
|
|
||||||
|
@atexit.register
|
||||||
|
def clean_up() -> None:
|
||||||
|
with rootlog.nested("clean up"):
|
||||||
|
for machine in self.machines:
|
||||||
|
machine.release()
|
||||||
|
|
||||||
|
def subtest(self, name: str) -> Iterator[None]:
|
||||||
|
"""Group logs under a given test name"""
|
||||||
|
with rootlog.nested(name):
|
||||||
|
try:
|
||||||
|
yield
|
||||||
|
return True
|
||||||
|
except:
|
||||||
|
rootlog.error(f'Test "{name}" failed with error:')
|
||||||
|
raise
|
||||||
|
|
||||||
|
def test_symbols(self) -> Dict[str, Any]:
|
||||||
|
@contextmanager
|
||||||
|
def subtest(name: str) -> Iterator[None]:
|
||||||
|
return self.subtest(name)
|
||||||
|
|
||||||
|
general_symbols = dict(
|
||||||
|
start_all=self.start_all,
|
||||||
|
test_script=self.test_script,
|
||||||
|
machines=self.machines,
|
||||||
|
vlans=self.vlans,
|
||||||
|
driver=self,
|
||||||
|
log=rootlog,
|
||||||
|
os=os,
|
||||||
|
create_machine=self.create_machine,
|
||||||
|
subtest=subtest,
|
||||||
|
run_tests=self.run_tests,
|
||||||
|
join_all=self.join_all,
|
||||||
|
retry=retry,
|
||||||
|
serial_stdout_off=self.serial_stdout_off,
|
||||||
|
serial_stdout_on=self.serial_stdout_on,
|
||||||
|
Machine=Machine, # for typing
|
||||||
|
)
|
||||||
|
machine_symbols = {
|
||||||
|
m.name: self.machines[idx] for idx, m in enumerate(self.machines)
|
||||||
|
}
|
||||||
|
vlan_symbols = {
|
||||||
|
f"vlan{v.nr}": self.vlans[idx] for idx, v in enumerate(self.vlans)
|
||||||
|
}
|
||||||
|
print(
|
||||||
|
"additionally exposed symbols:\n "
|
||||||
|
+ ", ".join(map(lambda m: m.name, self.machines))
|
||||||
|
+ ",\n "
|
||||||
|
+ ", ".join(map(lambda v: f"vlan{v.nr}", self.vlans))
|
||||||
|
+ ",\n "
|
||||||
|
+ ", ".join(list(general_symbols.keys()))
|
||||||
|
)
|
||||||
|
return {**general_symbols, **machine_symbols, **vlan_symbols}
|
||||||
|
|
||||||
|
def test_script(self) -> None:
|
||||||
|
"""Run the test script"""
|
||||||
|
with rootlog.nested("run the VM test script"):
|
||||||
|
symbols = self.test_symbols() # call eagerly
|
||||||
|
exec(self.tests, symbols, None)
|
||||||
|
|
||||||
|
def run_tests(self) -> None:
|
||||||
|
"""Run the test script (for non-interactive test runs)"""
|
||||||
|
self.test_script()
|
||||||
# TODO: Collect coverage data
|
# TODO: Collect coverage data
|
||||||
for machine in machines:
|
for machine in self.machines:
|
||||||
if machine.is_up():
|
if machine.is_up():
|
||||||
machine.execute("sync")
|
machine.execute("sync")
|
||||||
|
|
||||||
|
def start_all(self) -> None:
|
||||||
|
"""Start all machines"""
|
||||||
|
with rootlog.nested("start all VMs"):
|
||||||
|
for machine in self.machines:
|
||||||
|
machine.start()
|
||||||
|
|
||||||
def serial_stdout_on() -> None:
|
def join_all(self) -> None:
|
||||||
log._print_serial_logs = True
|
"""Wait for all machines to shut down"""
|
||||||
|
with rootlog.nested("wait for all VMs to finish"):
|
||||||
|
for machine in self.machines:
|
||||||
|
machine.wait_for_shutdown()
|
||||||
|
|
||||||
|
def create_machine(self, args: Dict[str, Any]) -> Machine:
|
||||||
|
rootlog.warning(
|
||||||
|
"Using legacy create_machine(), please instantiate the"
|
||||||
|
"Machine class directly, instead"
|
||||||
|
)
|
||||||
|
tmp_dir = pathlib.Path(os.environ.get("TMPDIR", tempfile.gettempdir()))
|
||||||
|
tmp_dir.mkdir(mode=0o700, exist_ok=True)
|
||||||
|
|
||||||
def serial_stdout_off() -> None:
|
if args.get("startCommand"):
|
||||||
log._print_serial_logs = False
|
start_command: str = args.get("startCommand", "")
|
||||||
|
cmd = NixStartScript(start_command)
|
||||||
|
name = args.get("name", cmd.machine_name)
|
||||||
|
else:
|
||||||
|
cmd = Machine.create_startcommand(args) # type: ignore
|
||||||
|
name = args.get("name", "machine")
|
||||||
|
|
||||||
|
return Machine(
|
||||||
|
tmp_dir=tmp_dir,
|
||||||
|
start_command=cmd,
|
||||||
|
name=name,
|
||||||
|
keep_vm_state=args.get("keep_vm_state", False),
|
||||||
|
allow_reboot=args.get("allow_reboot", False),
|
||||||
|
)
|
||||||
|
|
||||||
|
def serial_stdout_on(self) -> None:
|
||||||
|
rootlog._print_serial_logs = True
|
||||||
|
|
||||||
|
def serial_stdout_off(self) -> None:
|
||||||
|
rootlog._print_serial_logs = False
|
||||||
|
|
||||||
|
|
||||||
class EnvDefault(argparse.Action):
|
class EnvDefault(argparse.Action):
|
||||||
@ -970,52 +1250,6 @@ class EnvDefault(argparse.Action):
|
|||||||
setattr(namespace, self.dest, values)
|
setattr(namespace, self.dest, values)
|
||||||
|
|
||||||
|
|
||||||
@contextmanager
|
|
||||||
def subtest(name: str) -> Iterator[None]:
|
|
||||||
with log.nested(name):
|
|
||||||
try:
|
|
||||||
yield
|
|
||||||
return True
|
|
||||||
except Exception as e:
|
|
||||||
log.log(f'Test "{name}" failed with error: "{e}"')
|
|
||||||
raise e
|
|
||||||
|
|
||||||
return False
|
|
||||||
|
|
||||||
|
|
||||||
def _test_symbols() -> Dict[str, Any]:
|
|
||||||
general_symbols = dict(
|
|
||||||
start_all=start_all,
|
|
||||||
test_script=globals().get("test_script"), # same
|
|
||||||
machines=globals().get("machines"), # without being initialized
|
|
||||||
log=globals().get("log"), # extracting those symbol keys
|
|
||||||
os=os,
|
|
||||||
create_machine=create_machine,
|
|
||||||
subtest=subtest,
|
|
||||||
run_tests=run_tests,
|
|
||||||
join_all=join_all,
|
|
||||||
retry=retry,
|
|
||||||
serial_stdout_off=serial_stdout_off,
|
|
||||||
serial_stdout_on=serial_stdout_on,
|
|
||||||
Machine=Machine, # for typing
|
|
||||||
)
|
|
||||||
return general_symbols
|
|
||||||
|
|
||||||
|
|
||||||
def test_symbols() -> Dict[str, Any]:
|
|
||||||
|
|
||||||
general_symbols = _test_symbols()
|
|
||||||
|
|
||||||
machine_symbols = {m.name: machines[idx] for idx, m in enumerate(machines)}
|
|
||||||
print(
|
|
||||||
"additionally exposed symbols:\n "
|
|
||||||
+ ", ".join(map(lambda m: m.name, machines))
|
|
||||||
+ ",\n "
|
|
||||||
+ ", ".join(list(general_symbols.keys()))
|
|
||||||
)
|
|
||||||
return {**general_symbols, **machine_symbols}
|
|
||||||
|
|
||||||
|
|
||||||
if __name__ == "__main__":
|
if __name__ == "__main__":
|
||||||
arg_parser = argparse.ArgumentParser(prog="nixos-test-driver")
|
arg_parser = argparse.ArgumentParser(prog="nixos-test-driver")
|
||||||
arg_parser.add_argument(
|
arg_parser.add_argument(
|
||||||
@ -1055,44 +1289,18 @@ if __name__ == "__main__":
|
|||||||
)
|
)
|
||||||
|
|
||||||
args = arg_parser.parse_args()
|
args = arg_parser.parse_args()
|
||||||
testscript = pathlib.Path(args.testscript).read_text()
|
|
||||||
|
|
||||||
global log, machines, test_script
|
if not args.keep_vm_state:
|
||||||
|
rootlog.info("Machine state will be reset. To keep it, pass --keep-vm-state")
|
||||||
|
|
||||||
log = Logger()
|
driver = Driver(
|
||||||
|
args.start_scripts, args.vlans, args.testscript.read_text(), args.keep_vm_state
|
||||||
|
)
|
||||||
|
|
||||||
vde_sockets = [create_vlan(v) for v in args.vlans]
|
if args.interactive:
|
||||||
for nr, vde_socket, _, _ in vde_sockets:
|
ptpython.repl.embed(driver.test_symbols(), {})
|
||||||
os.environ["QEMU_VDE_SOCKET_{}".format(nr)] = vde_socket
|
else:
|
||||||
|
|
||||||
machines = [
|
|
||||||
create_machine({"startCommand": s, "keepVmState": args.keep_vm_state})
|
|
||||||
for s in args.start_scripts
|
|
||||||
]
|
|
||||||
machine_eval = [
|
|
||||||
"{0} = machines[{1}]".format(m.name, idx) for idx, m in enumerate(machines)
|
|
||||||
]
|
|
||||||
exec("\n".join(machine_eval))
|
|
||||||
|
|
||||||
@atexit.register
|
|
||||||
def clean_up() -> None:
|
|
||||||
with log.nested("cleaning up"):
|
|
||||||
for machine in machines:
|
|
||||||
if machine.pid is None:
|
|
||||||
continue
|
|
||||||
log.log("killing {} (pid {})".format(machine.name, machine.pid))
|
|
||||||
machine.process.kill()
|
|
||||||
for _, _, process, _ in vde_sockets:
|
|
||||||
process.terminate()
|
|
||||||
log.close()
|
|
||||||
|
|
||||||
def test_script() -> None:
|
|
||||||
with log.nested("running the VM test script"):
|
|
||||||
symbols = test_symbols() # call eagerly
|
|
||||||
exec(testscript, symbols, None)
|
|
||||||
|
|
||||||
interactive = args.interactive or (not bool(testscript))
|
|
||||||
tic = time.time()
|
tic = time.time()
|
||||||
run_tests(interactive)
|
driver.run_tests()
|
||||||
toc = time.time()
|
toc = time.time()
|
||||||
print("test script finished in {:.2f}s".format(toc - tic))
|
rootlog.info(f"test script finished in {(toc-tic):.2f}s")
|
||||||
|
@ -43,7 +43,8 @@ rec {
|
|||||||
from pydoc import importfile
|
from pydoc import importfile
|
||||||
with open('driver-symbols', 'w') as fp:
|
with open('driver-symbols', 'w') as fp:
|
||||||
t = importfile('${testDriverScript}')
|
t = importfile('${testDriverScript}')
|
||||||
test_symbols = t._test_symbols()
|
d = t.Driver([],[],"")
|
||||||
|
test_symbols = d.test_symbols()
|
||||||
fp.write(','.join(test_symbols.keys()))
|
fp.write(','.join(test_symbols.keys()))
|
||||||
EOF
|
EOF
|
||||||
'';
|
'';
|
||||||
@ -188,14 +189,6 @@ rec {
|
|||||||
--set startScripts "''${vmStartScripts[*]}" \
|
--set startScripts "''${vmStartScripts[*]}" \
|
||||||
--set testScript "$out/test-script" \
|
--set testScript "$out/test-script" \
|
||||||
--set vlans '${toString vlans}'
|
--set vlans '${toString vlans}'
|
||||||
|
|
||||||
${lib.optionalString (testScript == "") ''
|
|
||||||
ln -s ${testDriver}/bin/nixos-test-driver $out/bin/nixos-run-vms
|
|
||||||
wrapProgram $out/bin/nixos-run-vms \
|
|
||||||
--set startScripts "''${vmStartScripts[*]}" \
|
|
||||||
--set testScript "${pkgs.writeText "start-all" "start_all(); join_all();"}" \
|
|
||||||
--set vlans '${toString vlans}'
|
|
||||||
''}
|
|
||||||
'');
|
'');
|
||||||
|
|
||||||
# Make a full-blown test
|
# Make a full-blown test
|
||||||
|
@ -8,11 +8,21 @@ let
|
|||||||
_file = "${networkExpr}@node-${vm}";
|
_file = "${networkExpr}@node-${vm}";
|
||||||
imports = [ module ];
|
imports = [ module ];
|
||||||
}) (import networkExpr);
|
}) (import networkExpr);
|
||||||
|
|
||||||
|
pkgs = import ../../../../.. { inherit system config; };
|
||||||
|
|
||||||
|
testing = import ../../../../lib/testing-python.nix {
|
||||||
|
inherit system pkgs;
|
||||||
|
};
|
||||||
|
|
||||||
|
interactiveDriver = (testing.makeTest { inherit nodes; testScript = "start_all(); join_all();"; }).driverInteractive;
|
||||||
in
|
in
|
||||||
|
|
||||||
with import ../../../../lib/testing-python.nix {
|
|
||||||
inherit system;
|
|
||||||
pkgs = import ../../../../.. { inherit system config; };
|
|
||||||
};
|
|
||||||
|
|
||||||
(makeTest { inherit nodes; testScript = ""; }).driverInteractive
|
pkgs.runCommand "nixos-build-vms" { nativeBuildInputs = [ pkgs.makeWrapper ]; } ''
|
||||||
|
mkdir -p $out/bin
|
||||||
|
ln -s ${interactiveDriver}/bin/nixos-test-driver $out/bin/nixos-test-driver
|
||||||
|
ln -s ${interactiveDriver}/bin/nixos-test-driver $out/bin/nixos-run-vms
|
||||||
|
wrapProgram $out/bin/nixos-test-driver \
|
||||||
|
--add-flags "--interactive"
|
||||||
|
''
|
||||||
|
@ -34,7 +34,7 @@ in
|
|||||||
|
|
||||||
with lzma.open(
|
with lzma.open(
|
||||||
"${stick}"
|
"${stick}"
|
||||||
) as data, open(machine.state_dir + "/usbstick.img", "wb") as stick:
|
) as data, open(machine.state_dir / "usbstick.img", "wb") as stick:
|
||||||
stick.write(data.read())
|
stick.write(data.read())
|
||||||
|
|
||||||
machine.succeed("udisksctl info -b /dev/vda >&2")
|
machine.succeed("udisksctl info -b /dev/vda >&2")
|
||||||
|
@ -22,7 +22,7 @@ import ./make-test-python.nix ({ pkgs, ... }: {
|
|||||||
|
|
||||||
testScript = ''
|
testScript = ''
|
||||||
# create a blank disk image for our fake USB stick
|
# create a blank disk image for our fake USB stick
|
||||||
with open(machine.state_dir + "/usbstick.img", "wb") as stick:
|
with open(machine.state_dir / "usbstick.img", "wb") as stick:
|
||||||
stick.write(b"\x00" * (1024 * 1024))
|
stick.write(b"\x00" * (1024 * 1024))
|
||||||
|
|
||||||
# wait for machine to have started and the usbguard service to be up
|
# wait for machine to have started and the usbguard service to be up
|
||||||
|
Loading…
Reference in New Issue
Block a user