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https://github.com/chanzuckerberg/cellxgene.git
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f69d141336
This will give us the ability to specify different config options for different dataroots. the key of the dataroot dictionary is no longer the same as the dataroot_url. Previously key==dataroot_url, and now those are separated. Added an "is_multi_dataset" function to simplify logic where it branched on single vs multi. Simplified the rest.py interface by no longer passing in the user annotations object, since that can be retrieved from the dataset.
39 lines
1.3 KiB
Python
39 lines
1.3 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 = False
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server_config = config.server_config
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if config.is_multi_dataset():
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dataroots = [datapath_dict["dataroot"] for datapath_dict in server_config.multi_dataset__dataroot.values()]
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checks = all([_is_accessible(dataroot, server_config) for dataroot in dataroots])
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else:
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checks = _is_accessible(server_config.single_dataset__datapath, server_config)
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health["status"] = "pass" if 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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