def on_starting(server: Arbiter):
"""Gunicorn pre-start tasks."""
setup_lib_logging()
python_version = platform.python_version()
required = ".".join((str(v) for v in MIN_PYTHON_VERSION))
log.info("Python {} detected ({} required)", python_version, required)
async def runner():
# Standard Library
from asyncio import gather
await gather(build_ui(), cache_config())
check_redis_instance()
aiorun(build_ui())
cache_config()
log.success(
"Started hyperglass {v} on http://{h}:{p} with {w} workers",
v=__version__,
h=format_listen_address(params.listen_address),
p=str(params.listen_port),
w=server.app.cfg.settings["workers"].value,
)
def on_exit(server: Arbiter):
"""Gunicorn shutdown tasks."""
log.critical("Stopping hyperglass {}", __version__)
async def runner():
await clear_cache()
aiorun(runner())
def build_ui(timeout: int) -> None:
"""Create a new UI build."""
try:
# Project
from hyperglass.configuration import CONFIG_PATH, params, frontend_params
from hyperglass.util.frontend import build_frontend
from hyperglass.compat._asyncio import aiorun
except ImportError as e:
error("Error importing UI builder: {e}", e=e)
status("Starting new UI build with a {t} second timeout...", t=timeout)
if params.developer_mode:
dev_mode = "development"
else:
dev_mode = "production"
try:
build_success = aiorun(
build_frontend(
dev_mode=params.developer_mode,
dev_url=f"http://localhost:{str(params.listen_port)}/",
prod_url="/api/",
params=frontend_params,
force=True,
app_path=CONFIG_PATH,
))
if build_success:
success("Completed UI build in {m} mode", m=dev_mode)
except Exception as e:
error("Error building UI: {e}", e=e)
return True
def get_config(self):
"""Get picked config object from cache."""
import pickle
from hyperglass.compat._asyncio import aiorun
pickled = aiorun(self.instance.get("HYPERGLASS_CONFIG"))
return pickle.loads(pickled)
def build_ui():
"""Create a new UI build.
Raises:
ClickException: Raised on any errors.
"""
try:
from hyperglass.compat._asyncio import aiorun
from hyperglass.util import build_frontend
from hyperglass.configuration import params, frontend_params, CONFIG_PATH
except ImportError as e:
error("Error importing UI builder: {e}", e=e)
status("Starting new UI build...")
if params.developer_mode:
dev_mode = "development"
else:
dev_mode = "production"
try:
build_success = aiorun(
build_frontend(
dev_mode=params.developer_mode,
dev_url=f"http://localhost:{str(params.listen_port)}/",
prod_url="/api/",
params=frontend_params,
force=True,
app_path=CONFIG_PATH,
))
if build_success:
success("Completed UI build in {m} mode", m=dev_mode)
except Exception as e:
error("Error building UI: {e}", e=e)
return True