mirror of
https://github.com/chanzuckerberg/cellxgene.git
synced 2026-09-24 00:58:12 +08:00
Bruce Martin
55ef1448e8
* remove duplicate content-type header * plumbing to compute CSP content hashes * add logging of missing CSP hashes * convert sub-class init protocol to static * factor function * lint
36 lines
1.2 KiB
Python
36 lines
1.2 KiB
Python
from http import HTTPStatus
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from flask import make_response, jsonify
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from server import __version__ as cellxgene_version
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from server.common.data_locator import DataLocator
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def _is_accessible(path, config):
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if path is None:
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return True
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try:
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dl = DataLocator(path, region_name=config.data_locator__s3__region_name)
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return dl.exists()
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except RuntimeError:
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return False
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def health_check(config):
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"""
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simple health check - return HTTP response.
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See https://tools.ietf.org/id/draft-inadarei-api-health-check-01.html
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"""
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health = {"status": None, "version": "1", "releaseID": cellxgene_version}
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checks = [
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(config.single_dataset__datapath is not None or config.multi_dataset__dataroot is not None),
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_is_accessible(config.single_dataset__datapath, config),
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_is_accessible(config.multi_dataset__dataroot, config),
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]
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health["status"] = "pass" if all(checks) else "fail"
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code = HTTPStatus.OK if health["status"] == "pass" else HTTPStatus.BAD_REQUEST
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response = make_response(jsonify(health), code)
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response.headers["Content-Type"] = "application/health+json"
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return response
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