Files
cellxgene/server/common/config/server_config.py
bmccandless b5ec43c4b1 Add a function to check the configuration for errors. (#1919)
This can be used as a sanity check before a deployment:

  chanzuckerberg/single-cell#63
2020-10-08 08:44:09 -07:00

381 lines
19 KiB
Python

import os
import sys
import warnings
from os.path import basename
from urllib.parse import urlparse, quote_plus
from server.auth.auth import AuthTypeFactory
from server.common.config.base_config import BaseConfig
from server.common.config import DEFAULT_SERVER_PORT, BIG_FILE_SIZE_THRESHOLD
from server.common.errors import ConfigurationError, DatasetAccessError
from server.common.data_locator import discover_s3_region_name
from server.common.utils.utils import is_port_available, find_available_port, custom_format_warning
from server.compute import diffexp_cxg as diffexp_tiledb
from server.data_common.matrix_loader import MatrixDataCacheManager, MatrixDataLoader, MatrixDataType
class ServerConfig(BaseConfig):
"""Manages the config attribute associated with the server."""
def __init__(self, app_config, default_config):
dictval_cases = [
("app", "csp_directives"),
("authentication", "params_oauth", "cookie"),
("authentication", "params_oauth", "jwt_decode_options"),
("adaptor", "cxg_adaptor", "tiledb_ctx"),
("multi_dataset", "dataroot"),
]
super().__init__(app_config, default_config, dictval_cases)
try:
self.app__verbose = default_config["app"]["verbose"]
self.app__debug = default_config["app"]["debug"]
self.app__host = default_config["app"]["host"]
self.app__port = default_config["app"]["port"]
self.app__open_browser = default_config["app"]["open_browser"]
self.app__force_https = default_config["app"]["force_https"]
self.app__flask_secret_key = default_config["app"]["flask_secret_key"]
self.app__generate_cache_control_headers = default_config["app"]["generate_cache_control_headers"]
self.app__server_timing_headers = default_config["app"]["server_timing_headers"]
self.app__csp_directives = default_config["app"]["csp_directives"]
self.app__api_base_url = default_config["app"]["api_base_url"]
self.app__web_base_url = default_config["app"]["web_base_url"]
self.authentication__type = default_config["authentication"]["type"]
self.authentication__params_oauth__oauth_api_base_url = default_config["authentication"]["params_oauth"][
"oauth_api_base_url"
]
self.authentication__params_oauth__client_id = default_config["authentication"]["params_oauth"]["client_id"]
self.authentication__params_oauth__client_secret = default_config["authentication"]["params_oauth"][
"client_secret"
]
self.authentication__params_oauth__jwt_decode_options = default_config["authentication"]["params_oauth"][
"jwt_decode_options"
]
self.authentication__params_oauth__session_cookie = default_config["authentication"]["params_oauth"][
"session_cookie"
]
self.authentication__params_oauth__cookie = default_config["authentication"]["params_oauth"]["cookie"]
self.multi_dataset__dataroot = default_config["multi_dataset"]["dataroot"]
self.multi_dataset__index = default_config["multi_dataset"]["index"]
self.multi_dataset__allowed_matrix_types = default_config["multi_dataset"]["allowed_matrix_types"]
self.multi_dataset__matrix_cache__max_datasets = default_config["multi_dataset"]["matrix_cache"][
"max_datasets"
]
self.multi_dataset__matrix_cache__timelimit_s = default_config["multi_dataset"]["matrix_cache"][
"timelimit_s"
]
self.single_dataset__datapath = default_config["single_dataset"]["datapath"]
self.single_dataset__obs_names = default_config["single_dataset"]["obs_names"]
self.single_dataset__var_names = default_config["single_dataset"]["var_names"]
self.single_dataset__about = default_config["single_dataset"]["about"]
self.single_dataset__title = default_config["single_dataset"]["title"]
self.diffexp__alg_cxg__max_workers = default_config["diffexp"]["alg_cxg"]["max_workers"]
self.diffexp__alg_cxg__cpu_multiplier = default_config["diffexp"]["alg_cxg"]["cpu_multiplier"]
self.diffexp__alg_cxg__target_workunit = default_config["diffexp"]["alg_cxg"]["target_workunit"]
self.data_locator__s3__region_name = default_config["data_locator"]["s3"]["region_name"]
self.adaptor__cxg_adaptor__tiledb_ctx = default_config["adaptor"]["cxg_adaptor"]["tiledb_ctx"]
self.adaptor__anndata_adaptor__backed = default_config["adaptor"]["anndata_adaptor"]["backed"]
self.limits__diffexp_cellcount_max = default_config["limits"]["diffexp_cellcount_max"]
self.limits__column_request_max = default_config["limits"]["column_request_max"]
except KeyError as e:
raise ConfigurationError(f"Unexpected config: {str(e)}")
# The matrix data cache manager is created during the complete_config and stored here.
self.matrix_data_cache_manager = None
# The authentication object
self.auth = None
def complete_config(self, context):
self.handle_app(context)
self.handle_data_source()
self.handle_authentication()
self.handle_data_locator()
self.handle_adaptor() # may depend on data_locator
self.handle_single_dataset(context) # may depend on adaptor
self.handle_multi_dataset() # may depend on adaptor
self.handle_diffexp()
self.handle_limits()
self.check_config()
def handle_app(self, context):
self.validate_correct_type_of_configuration_attribute("app__verbose", bool)
self.validate_correct_type_of_configuration_attribute("app__debug", bool)
self.validate_correct_type_of_configuration_attribute("app__host", str)
self.validate_correct_type_of_configuration_attribute("app__port", (type(None), int))
self.validate_correct_type_of_configuration_attribute("app__open_browser", bool)
self.validate_correct_type_of_configuration_attribute("app__force_https", bool)
self.validate_correct_type_of_configuration_attribute("app__flask_secret_key", str)
self.validate_correct_type_of_configuration_attribute("app__generate_cache_control_headers", bool)
self.validate_correct_type_of_configuration_attribute("app__server_timing_headers", bool)
self.validate_correct_type_of_configuration_attribute("app__csp_directives", (type(None), dict))
self.validate_correct_type_of_configuration_attribute("app__api_base_url", (type(None), str))
self.validate_correct_type_of_configuration_attribute("app__web_base_url", (type(None), str))
if self.app__port:
try:
if not is_port_available(self.app__host, self.app__port):
raise ConfigurationError(
f"The port selected {self.app__port} is in use, please configure an open port."
)
except OverflowError:
raise ConfigurationError(f"Invalid port: {self.app__port}")
else:
try:
default_server_port = int(os.environ.get("CXG_SERVER_PORT", DEFAULT_SERVER_PORT))
except ValueError:
raise ConfigurationError(
"Invalid port from environment variable CXG_SERVER_PORT: " + os.environ.get("CXG_SERVER_PORT")
)
try:
self.app__port = find_available_port(self.app__host, default_server_port)
except OverflowError:
raise ConfigurationError(f"Invalid port: {default_server_port}")
if self.app__debug:
context["messagefn"]("in debug mode, setting verbose=True and open_browser=False")
self.app__verbose = True
self.app__open_browser = False
else:
warnings.formatwarning = custom_format_warning
if not self.app__verbose:
sys.tracebacklimit = 0
# CSP Directives are a dict of string: list(string) or string: string
if self.app__csp_directives is not None:
for k, v in self.app__csp_directives.items():
if not isinstance(k, str):
raise ConfigurationError("CSP directive names must be a string.")
if isinstance(v, list):
for policy in v:
if not isinstance(policy, str):
raise ConfigurationError("CSP directive value must be a string or list of strings.")
elif not isinstance(v, str):
raise ConfigurationError("CSP directive value must be a string or list of strings.")
if self.app__web_base_url is None:
self.app__web_base_url = self.app__api_base_url
def handle_authentication(self):
self.validate_correct_type_of_configuration_attribute("authentication__type", (type(None), str))
# oauth
ptypes = str if self.authentication__type == "oauth" else (type(None), str)
self.validate_correct_type_of_configuration_attribute(
"authentication__params_oauth__oauth_api_base_url", ptypes
)
self.validate_correct_type_of_configuration_attribute("authentication__params_oauth__client_id", ptypes)
self.validate_correct_type_of_configuration_attribute("authentication__params_oauth__client_secret", ptypes)
self.validate_correct_type_of_configuration_attribute(
"authentication__params_oauth__jwt_decode_options", (type(None), dict)
)
self.validate_correct_type_of_configuration_attribute("authentication__params_oauth__session_cookie", bool)
if self.authentication__params_oauth__session_cookie:
self.validate_correct_type_of_configuration_attribute(
"authentication__params_oauth__cookie", (type(None), dict)
)
else:
self.validate_correct_type_of_configuration_attribute("authentication__params_oauth__cookie", dict)
self.auth = AuthTypeFactory.create(self.authentication__type, self)
if self.auth is None:
raise ConfigurationError(f"Unknown authentication type: {self.authentication__type}")
def handle_data_locator(self):
self.validate_correct_type_of_configuration_attribute("data_locator__s3__region_name", (type(None), bool, str))
if self.data_locator__s3__region_name is True:
path = self.single_dataset__datapath or self.multi_dataset__dataroot
if type(path) == dict:
# if multi_dataset__dataroot is a dict, then use the first key
# that is in s3. NOTE: it is not supported to have dataroots
# in different regions.
paths = [val.get("dataroot") for val in path.values()]
for path in paths:
if path.startswith("s3://"):
break
if path.startswith("s3://"):
region_name = discover_s3_region_name(path)
if region_name is None:
raise ConfigurationError(f"Unable to discover s3 region name from {path}")
else:
region_name = None
self.data_locator__s3__region_name = region_name
def handle_data_source(self):
self.validate_correct_type_of_configuration_attribute("single_dataset__datapath", (str, type(None)))
self.validate_correct_type_of_configuration_attribute("multi_dataset__dataroot", (type(None), dict, str))
if self.single_dataset__datapath and self.multi_dataset__dataroot:
raise ConfigurationError(
"You must supply either a datapath (for single datasets) or a dataroot (for multidatasets). Not both"
)
if self.single_dataset__datapath is None and self.multi_dataset__dataroot is None:
raise ConfigurationError("You must specify a datapath for a single dataset or a dataroot for multidatasets")
def handle_single_dataset(self, context):
self.validate_correct_type_of_configuration_attribute("single_dataset__datapath", (str, type(None)))
self.validate_correct_type_of_configuration_attribute("single_dataset__title", (str, type(None)))
self.validate_correct_type_of_configuration_attribute("single_dataset__about", (str, type(None)))
self.validate_correct_type_of_configuration_attribute("single_dataset__obs_names", (str, type(None)))
self.validate_correct_type_of_configuration_attribute("single_dataset__var_names", (str, type(None)))
if self.single_dataset__datapath is None:
return
# create the matrix data cache manager:
if self.matrix_data_cache_manager is None:
self.matrix_data_cache_manager = MatrixDataCacheManager(max_cached=1, timelimit_s=None)
# preload this data set
matrix_data_loader = MatrixDataLoader(self.single_dataset__datapath, app_config=self.app_config)
try:
matrix_data_loader.pre_load_validation()
except DatasetAccessError as e:
raise ConfigurationError(str(e))
file_size = matrix_data_loader.file_size()
file_basename = basename(self.single_dataset__datapath)
if file_size > BIG_FILE_SIZE_THRESHOLD:
context["messagefn"](f"Loading data from {file_basename}, this may take a while...")
else:
context["messagefn"](f"Loading data from {file_basename}.")
if self.single_dataset__about:
def url_check(url):
try:
result = urlparse(url)
if all([result.scheme, result.netloc]):
return True
else:
return False
except ValueError:
return False
if not url_check(self.single_dataset__about):
raise ConfigurationError(
"Must provide an absolute URL for --about. (Example format: http://example.com)"
)
def handle_multi_dataset(self):
self.validate_correct_type_of_configuration_attribute("multi_dataset__dataroot", (type(None), dict, str))
self.validate_correct_type_of_configuration_attribute("multi_dataset__index", (type(None), bool, str))
self.validate_correct_type_of_configuration_attribute("multi_dataset__allowed_matrix_types", list)
self.validate_correct_type_of_configuration_attribute("multi_dataset__matrix_cache__max_datasets", int)
self.validate_correct_type_of_configuration_attribute(
"multi_dataset__matrix_cache__timelimit_s", (type(None), int, float)
)
if self.multi_dataset__dataroot is None:
return
if type(self.multi_dataset__dataroot) == str:
default_dict = dict(base_url="d", dataroot=self.multi_dataset__dataroot)
self.multi_dataset__dataroot = dict(d=default_dict)
for tag, dataroot_dict in self.multi_dataset__dataroot.items():
if "base_url" not in dataroot_dict:
raise ConfigurationError(f"error in multi_dataset__dataroot: missing base_url for tag {tag}")
if "dataroot" not in dataroot_dict:
raise ConfigurationError(f"error in multi_dataset__dataroot: missing dataroot, for tag {tag}")
base_url = dataroot_dict["base_url"]
# sanity check for well formed base urls
bad = False
if type(base_url) != str:
bad = True
elif os.path.normpath(base_url) != base_url:
bad = True
else:
base_url_parts = base_url.split("/")
if [quote_plus(part) for part in base_url_parts] != base_url_parts:
bad = True
if ".." in base_url_parts:
bad = True
if bad:
raise ConfigurationError(f"error in multi_dataset__dataroot base_url {base_url} for tag {tag}")
# verify all the base_urls are unique
base_urls = [d["base_url"] for d in self.multi_dataset__dataroot.values()]
if len(base_urls) > len(set(base_urls)):
raise ConfigurationError("error in multi_dataset__dataroot: base_urls must be unique")
# error checking
for mtype in self.multi_dataset__allowed_matrix_types:
try:
MatrixDataType(mtype)
except ValueError:
raise ConfigurationError(f'Invalid matrix type in "allowed_matrix_types": {mtype}')
# create the matrix data cache manager:
if self.matrix_data_cache_manager is None:
self.matrix_data_cache_manager = MatrixDataCacheManager(
max_cached=self.multi_dataset__matrix_cache__max_datasets,
timelimit_s=self.multi_dataset__matrix_cache__timelimit_s,
)
def handle_diffexp(self):
self.validate_correct_type_of_configuration_attribute("diffexp__alg_cxg__max_workers", (str, int))
self.validate_correct_type_of_configuration_attribute("diffexp__alg_cxg__cpu_multiplier", int)
self.validate_correct_type_of_configuration_attribute("diffexp__alg_cxg__target_workunit", int)
max_workers = self.diffexp__alg_cxg__max_workers
cpu_multiplier = self.diffexp__alg_cxg__cpu_multiplier
cpu_count = os.cpu_count()
max_workers = min(max_workers, cpu_multiplier * cpu_count)
diffexp_tiledb.set_config(max_workers, self.diffexp__alg_cxg__target_workunit)
def handle_adaptor(self):
# cxg
self.validate_correct_type_of_configuration_attribute("adaptor__cxg_adaptor__tiledb_ctx", dict)
regionkey = "vfs.s3.region"
if regionkey not in self.adaptor__cxg_adaptor__tiledb_ctx:
if type(self.data_locator__s3__region_name) == str:
self.adaptor__cxg_adaptor__tiledb_ctx[regionkey] = self.data_locator__s3__region_name
from server.data_cxg.cxg_adaptor import CxgAdaptor
CxgAdaptor.set_tiledb_context(self.adaptor__cxg_adaptor__tiledb_ctx)
# anndata
self.validate_correct_type_of_configuration_attribute("adaptor__anndata_adaptor__backed", bool)
def handle_limits(self):
self.validate_correct_type_of_configuration_attribute("limits__diffexp_cellcount_max", (type(None), int))
self.validate_correct_type_of_configuration_attribute("limits__column_request_max", (type(None), int))
def exceeds_limit(self, limit_name, value):
limit_value = getattr(self, "limits__" + limit_name, None)
if limit_value is None: # disabled
return False
return value > limit_value
def get_api_base_url(self):
if self.app__api_base_url == "local":
return f"http://{self.app__host}:{self.app__port}"
if self.app__api_base_url and self.app__api_base_url.endswith("/"):
return self.app__api_base_url[:-1]
return self.app__api_base_url
def get_web_base_url(self):
if self.app__web_base_url == "local":
return f"http://{self.app__host}:{self.app__port}"
if self.app__web_base_url is None:
return self.get_api_base_url()
if self.app__web_base_url.endswith("/"):
return self.app__web_base_url[:-1]
return self.app__web_base_url