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207 | def reactivate_ssh(
*,
task_group_activity_id: int,
task_group_id: int,
resource: Resource,
profile: Profile,
) -> None:
"""
Reactivate a task group venv.
This function is run as a background task, therefore exceptions must be
handled.
Args:
task_group_activity_id:
task_group_id:
resource:
profile:
"""
LOGGER_NAME = f"{__name__}.ID{task_group_activity_id}"
with TemporaryDirectory() as tmpdir:
log_file_path = get_log_path(Path(tmpdir))
logger = set_logger(
logger_name=LOGGER_NAME,
log_file_path=log_file_path,
)
logger.info("START")
with next(get_sync_db()) as db:
db_objects_ok, task_group, activity = get_activity_and_task_group(
task_group_activity_id=task_group_activity_id,
task_group_id=task_group_id,
db=db,
logger_name=LOGGER_NAME,
)
if not db_objects_ok:
return
with SingleUseFractalSSH(
ssh_config=SSHConfig(
host=resource.host,
user=profile.username,
key_path=profile.ssh_key_path,
),
logger_name=LOGGER_NAME,
) as fractal_ssh:
try:
# Check SSH connection
ssh_ok = check_ssh_or_fail_and_cleanup(
fractal_ssh=fractal_ssh,
task_group=task_group,
task_group_activity=activity,
logger_name=LOGGER_NAME,
log_file_path=log_file_path,
db=db,
)
if not ssh_ok:
return
# Check that the (remote) task_group venv_path does not
# exist
if fractal_ssh.remote_exists(task_group.venv_path):
error_msg = f"{task_group.venv_path} already exists."
logger.error(error_msg)
fail_and_cleanup(
task_group=task_group,
task_group_activity=activity,
logger_name=LOGGER_NAME,
log_file_path=log_file_path,
exception=FileExistsError(error_msg),
db=db,
)
return
activity.status = TaskGroupActivityStatusV2.ONGOING
activity = add_commit_refresh(obj=activity, db=db)
# Prepare replacements for templates
python_bin = get_python_interpreter(
python_version=task_group.python_version,
resource=resource,
)
replacements = get_collection_replacements(
task_group=task_group,
python_bin=python_bin,
resource=resource,
)
# Prepare replacements for templates
pip_freeze_file_local = f"{tmpdir}/pip_freeze.txt"
pip_freeze_file_remote = (
Path(task_group.path) / "_tmp_pip_freeze.txt"
).as_posix()
with open(pip_freeze_file_local, "w") as f:
f.write(task_group.env_info)
fractal_ssh.send_file(
local=pip_freeze_file_local,
remote=pip_freeze_file_remote,
)
replacements.append(
("__PIP_FREEZE_FILE__", pip_freeze_file_remote)
)
# Define script_dir_remote and create it if missing
script_dir_remote = (
Path(task_group.path) / SCRIPTS_SUBFOLDER
).as_posix()
fractal_ssh.mkdir(folder=script_dir_remote, parents=True)
# Prepare common arguments for _customize_and_run_template
common_args = dict(
replacements=replacements,
script_dir_local=(
Path(tmpdir) / SCRIPTS_SUBFOLDER
).as_posix(),
script_dir_remote=script_dir_remote,
prefix=(
f"{int(time.time())}_"
f"{TaskGroupActivityActionV2.REACTIVATE}"
),
fractal_ssh=fractal_ssh,
logger_name=LOGGER_NAME,
)
# Create remote directory for scripts
fractal_ssh.mkdir(folder=script_dir_remote)
logger.info("start - create venv")
_customize_and_run_template(
template_filename="1_create_venv.sh",
**common_args,
)
logger.info("end - create venv")
activity.log = get_current_log(log_file_path)
activity = add_commit_refresh(obj=activity, db=db)
logger.info("start - install from pip freeze")
_customize_and_run_template(
template_filename="6_pip_install_from_freeze.sh",
**common_args,
)
logger.info("end - install from pip freeze")
activity.log = get_current_log(log_file_path)
activity.status = TaskGroupActivityStatusV2.OK
activity.timestamp_ended = get_timestamp()
activity = add_commit_refresh(obj=activity, db=db)
task_group.active = True
task_group = add_commit_refresh(obj=task_group, db=db)
logger.info("END")
reset_logger_handlers(logger)
except Exception as reactivate_e:
# Delete corrupted venv_path
try:
logger.info(
f"Now delete folder {task_group.venv_path}"
)
fractal_ssh.remove_folder(
folder=task_group.venv_path,
safe_root=profile.tasks_remote_dir,
)
logger.info(f"Deleted folder {task_group.venv_path}")
except Exception as rm_e:
logger.error(
"Removing folder failed. "
f"Original error: {str(rm_e)}"
)
fail_and_cleanup(
task_group=task_group,
task_group_activity=activity,
logger_name=LOGGER_NAME,
log_file_path=log_file_path,
exception=reactivate_e,
db=db,
)
|