Files
cellxgene/server/common/health.py
Madison Dunitz 3ebbb0ccbf move common code into server, update tests and makefile (#2425)
* move common code into server, update tests and makefile

remove backend directory, refactor

update smoke tests
2021-09-20 18:50:06 -07:00

34 lines
1.0 KiB
Python

from http import HTTPStatus
from flask import make_response, jsonify
from server import __version__ as cellxgene_version
from server.common.utils.data_locator import DataLocator
def _is_accessible(path, config):
if path is None:
return True
try:
dl = DataLocator(path, region_name=config.data_locator__s3__region_name)
return dl.exists()
except RuntimeError:
return False
def health_check(config):
"""
simple health check - return HTTP response.
See https://tools.ietf.org/id/draft-inadarei-api-health-check-01.html
"""
health = {"status": None, "version": "1", "releaseID": cellxgene_version}
server_config = config.server_config
check = _is_accessible(server_config.single_dataset__datapath, server_config)
health["status"] = "pass" if check else "fail"
code = HTTPStatus.OK if health["status"] == "pass" else HTTPStatus.BAD_REQUEST
response = make_response(jsonify(health), code)
response.headers["Content-Type"] = "application/health+json"
return response