appengine/monorail/settings.py - infra/infra - Git at Google

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is govered by a BSD-style
 # license that can be found in the LICENSE file or at
 # https://developers.google.com/open-source/licenses/bsd

 """Defines settings for monorail."""

 import os
 import re

 from google.appengine.api import app_identity

 from framework import framework_constants
 from proto import project_pb2
 from proto import site_pb2


 # This file is divided into the following parts:
 # 1. Settings you must edit before deploying your site.
 # 2. Settings you would edit on certain occasions while maintaining your site.
 # 3. Settings enable specific features.
 # 4. Settings that you can usually leave as-is.

 # TODO(jrobbins): Store these settings in the database and implement
 # servlets for domain admins to edit them without needing to redeploy the
 # app.


 ####
 # Part 1: settings that you must edit before deploying your site.

 # Email address that is offered to users who might need help using the tool.
 feedback_email = 'jrobbins+monorail.feedback@chromium.org'

 # For debugging when running in staging: send all outbound
 # email to this address rather than to the actual address that
 # it would normally be sent to.
 send_all_email_to = 'jrobbins+all+%(user)s+%(domain)s@chromium.org'

 # For debugging when running the dev server locally: send all outbound
 # email to this address rather than to the actual address that
 # it would normally be sent to.
 send_dev_email_to = (send_all_email_to or
                      'jrobbins+dev+%(user)s+%(domain)s@chromium.org')

 # User to send emails from Monorail as. The reply_to sections of emails will be
 # set to appspotmail addresses.
 # Note: If configuring a new monorail instance without DNS records and reserved
 #       email addresses then setting these values to
 #       'reply@${app_id}.appspotmail.com' and 'noreply@{app_id}.appspotmail.com'
 #       is likely the best option.
 send_email_as = 'monorail@chromium.org'
 send_noreply_email_as = 'monorail+noreply@chromium.org'

 # The default is to look for a database named "monorail" in replicas
 # named "replica-00" .. "replica-09"
 db_database_name = 'monorail'
 db_replica_prefix = 'replica-'

 # The number of logical database shards used.  Each replica is complete copy
 # of the master, so any replica DB can answer queries about any logical shard.
 num_logical_shards = 10

 # "Learn more" link for the site home page
 # TODO(agable): Update this when we have publicly visible documentation.
 learn_more_link = None

 # Site name, displayed above the search box on the site home page.
 site_name = 'Monorail'

 # Who is allowed to create new projects?  Set to ANYONE or ADMIN_ONLY.
 project_creation_restriction = site_pb2.UserTypeRestriction.ADMIN_ONLY

 # Default access level when creating a new project.
 default_access_level = project_pb2.ProjectAccess.ANYONE

 # Possible access levels to offer when creating a new project.
 allowed_access_levels = [
     project_pb2.ProjectAccess.ANYONE,
     project_pb2.ProjectAccess.MEMBERS_ONLY]

 # Who is allowed to create user groups?  Set to ANYONE or ADMIN_ONLY.
 group_creation_restriction = site_pb2.UserTypeRestriction.ADMIN_ONLY

 # Who is allowed to create hotlists? Set to ANYONE or ADMIN_ONLY.
 hotlist_creation_restriction = site_pb2.UserTypeRestriction.ANYONE

 # Text that mentions these words as shorthand host names will be autolinked
 # regardless of the lack of "https://" or ".com".
 autolink_shorthand_hosts = [
     'go', 'g', 'shortn', 'who', 'teams',
     ]
 autolink_numeric_shorthand_hosts = [
     'b', 't', 'o', 'omg', 'cl', 'cr',
     ]


 ####
 # Part 2: Settings you would edit on certain occasions.

 # Read-only mode prevents changes while we make server-side changes.
 read_only = False

 # Timestamp used to notify users when the read only mode or other status
 # described in the banner message takes effect.  It is
 # expressed as a 5-tuple of ints: (year, month, day, hour, minute),
 # e.g. (2009, 3, 20, 21, 45) represents March 20 2009 9:45PM.
 banner_time = None

 # Display a site maintenance banner on every monorail page.
 banner_message = ''

 # User accounts with email addresses at these domains are all banned.
 banned_user_domains = []

 # We only send subscription notifications to users who have visited the
 # site in the last 6 months.
 subscription_timeout_secs = 180 * framework_constants.SECS_PER_DAY

 # Location of GCS spam classification staging trainer. Whenever the training
 # code is changed, this should be updated to point to the new package.
 trainer_staging = ('gs://monorail-staging-mlengine/spam_trainer_1517870972/'
                    'packages/befc9b29d9beb7e89d509bd1e9866183c138e3a32317cc'
                    'e253342ac9f8e7c375/trainer-0.1.tar.gz')

 # Location of GCS spam classification prod trainer. Whenever the training
 # code is changed, this should be updated to point to the new package.
 trainer_prod = ('gs://monorail-prod-mlengine/spam_trainer_1521755738/packages/'
                 '3339dfcb5d7b6c9d714fb9b332fd72d05823e9a1850ceaf16533a6124bcad'
                 '6fd/trainer-0.1.tar.gz')
 ####
 # Part 3: Settings that enable specific features

 # Enables "My projects" drop down menu
 enable_my_projects_menu = True

 # Enables stars in the UI for projects
 enable_project_stars = True

 # Enables stars in the UI for users
 enable_user_stars = True

 # Enable quick edit mode in issue peek dialog and show dialog on hover
 enable_quick_edit = True


 ####
 # Part 4: Settings that you can usually leave as-is.

 # dev_mode makes the server slower and more dynamic for easier debugging.
 # E.g., template files are reloaded on each request.
 dev_mode = os.environ['SERVER_SOFTWARE'].startswith('Development')
 unit_test_mode = os.environ['SERVER_SOFTWARE'].startswith('test')

 # If we assume 1KB each, then this would be 400 MB for this cache in frontends
 # that have only 1024 MB total.
 issue_cache_max_size = 400 * 1000

 # 150K users should be enough for all the frequent daily users plus the
 # occasional users that are mentioned on any popular pages.
 user_cache_max_size = 150 * 1000

 # Normally we use the default namespace, but during development it is
 # sometimes useful to run a tainted version on staging that has a separate
 # memcache namespace.  E.g., os.environ.get('CURRENT_VERSION_ID')
 memcache_namespace = None  # Should be None when committed.

 # Recompute derived issue fields via work items rather than while
 # the user is waiting for a page to load.
 recompute_derived_fields_in_worker = True

 # The issue search SQL queries have a LIMIT clause with this amount.
 search_limit_per_shard = 10 * 1000  # This is more than all open in chromium.

 # The GAE search feature is slow, so don't request too many results.
 fulltext_limit_per_shard = 1 * 1000

 # Retrieve at most this many issues from the DB when showing an issue grid.
 max_issues_in_grid = 6000
 # This is the most tiles that we show in grid view.  If the number of results
 # is larger than this, we display IDs instead.
 max_tiles_in_grid = 1000

 # Maximum number of project results to display on a single pagination page
 max_project_search_results_per_page = 100

 # Maxium number of results per pagination page, regardless of what
 # the user specified in his/her request.  This exists to prevent someone
 # from doing a DoS attack that makes our servers do a huge amount of work.
 max_artifact_search_results_per_page = 1000

 # Maximum number of comments to display on a single pagination page
 max_comments_per_page = 500

 # Max number of issue starrers to notify via email.  Issues with more
 # that this many starrers will only notify the last N of them after a
 # comment from a project member.
 max_starrers_to_notify = 4000

 # In projects that have more than this many issues the next and prev
 # links on the issue detail page will not be shown when the user comes
 # directly to an issue without specifying any query terms.
 threshold_to_suppress_prev_next = 10000

 # Format string for the name of the FTS index shards for issues.
 search_index_name_format = 'issues%02d'

 # Name of the FTS index for projects (not sharded).
 project_search_index_name = 'projects'

 # Each backend has this many seconds to respond, otherwise frontend gives up
 # on that shard.
 backend_deadline = 45

 # If the initial call to a backend fails, try again this many times.
 # Initial backend calls are failfast, meaning that they fail immediately rather
 # than queue behind other requests.  The last 2 retries will wait in queue.
 backend_retries = 3

 # Do various extra logging at INFO level.
 enable_profiler_logging = False

 # Mail sending domain.  Normally set this to None and it will be computed
 # automatically from your AppEngine APP_ID. But, it can be overridden below.
 mail_domain = None

 # URL format to browse source code revisions.  This can be overridden
 # in specific projects by setting project.revision_url_format.
 # The format string may include "{revnum}" for the revision number.
 revision_url_format = 'https://crrev.com/{revnum}'

 # Users with emails in the "priviledged" domains do NOT get any advantage
 # but they do default their preference to show unobscured email addresses.
 priviledged_user_domains = [
   'google.com', 'chromium.org', 'webrtc.org',
   ]

 # Names of projects on code.google.com which we allow cross-linking to.
 recognized_codesite_projects = [
   'chromium-os',
   'chrome-os-partner',
 ]

 ####
 # Part 5:  Instance-specific settings that override lines above.

 # We usually use a DB instance named "master" for writes.
 db_master_name = 'master'
 db_region = None  # First generation DB does not specify this.

 # This ID is for -staging and other misc deployments. Prod is defined below.
 analytics_id = 'UA-55762617-20'

 if unit_test_mode:
   db_cloud_project = ''  # No real database is used during unit testing.
 else:
   app_id = app_identity.get_application_id()

   if app_id == 'monorail-staging':
     site_name = 'Monorail Staging'
     banner_message = 'This staging site does not send emails.'
     # The Google Cloud SQL databases to use.
     db_cloud_project = app_id
     db_master_name = 'master-g2'
     db_region = 'us-central1'
     db_replica_prefix = 'replica-g2-'

   elif app_id == 'monorail-prod':
     send_all_email_to = None  # Deliver it to the intended users.
     # The Google Cloud SQL databases to use.
     db_cloud_project = app_id
     analytics_id = 'UA-55762617-14'

 if dev_mode:
   site_name = 'Monorail Dev'
   num_logical_shards = 10

 # Combine the customized info above to make the name of the master DB instance.
 if db_region:
   db_instance = db_cloud_project + ':' + db_region + ':' + db_master_name
 else:
   db_instance = db_cloud_project + ':' + db_master_name

 # Format string for the name of the physical database replicas.
 if db_region:
   physical_db_name_format = (
       db_cloud_project + ':' + db_region + ':' + db_replica_prefix + '%02d')
 else:
   physical_db_name_format = db_cloud_project + ':' + db_replica_prefix + '%02d'

 # preferred domains to display
 preferred_domains = {
     'monorail-prod.appspot.com': 'bugs.chromium.org',
     'monorail-staging.appspot.com': 'bugs-staging.chromium.org'}

 # Borg robot service account
 borg_service_account = 'chrome-infra-prod-borg@system.gserviceaccount.com'

 # Prediction API params.
 classifier_project_id = 'project-id-testing-only'

 # Necessary for tests.
 if 'APPLICATION_ID' not in os.environ:
   os.environ['APPLICATION_ID'] = 'testing-app'

 if dev_mode:
   # There is no local stub for ML Engine.
   classifier_project_id = 'monorail-staging'
 else:
   classifier_project_id = app_identity.get_application_id()

 classifier_model_id = '20170302'

 # Number of distinct users who have to flag an issue before it
 # is automatically removed as spam.
 # 5 is an arbitrarily chosen value.  Set it to something really high
 # to effectively disable spam flag threshhold checking.
 spam_flag_thresh = 5

 # If the classifier's confidence is less than this value, the
 # item will show up in the spam moderation queue for manual
 # review.
 classifier_moderation_thresh = 1.0

 # If the classifier's confidence is greater than this value,
 # and the label is 'spam', the item will automatically be created
 # with is_spam=True, and will be filtered out from search results.
 classifier_spam_thresh = 0.995

 # Users with email addresses ending with these will not be subject to
 # spam filtering.
 spam_whitelisted_suffixes = (
   '@chromium.org',
   '.gserviceaccount.com',
   '@google.com',
   '@webrtc.org',
 )

 # These email suffixes are allowed to create new alert bugs via email.
 alert_whitelisted_suffixes = (
   '@google.com',
 )

 # The person who is notified if there is an unexpected problem in the alert
 # pipeline.
 alert_escalation_email = 'zhangtiff@google.com'

 # Bugs autogenerated from alert emails are created through this account.
 alert_service_account = 'chrome-trooper-alerts@google.com'

 # The number of hash buckets to use when vectorizing text from Issues and
 # Comments. This should be the same value that the model was trained with.
 spam_feature_hashes = 500

 # The number of features to use when vectorizing text from Issues and
 # Comments. This should be the same value that the model was trained with.
 component_features = 5000

 # The name of the spam model in ML Engine.
 spam_model_name = 'spam_only_words'

 # The name of the component model in ML Engine
 component_model_name = 'component_top_words'

 # The name of the gcs bucket containing component predicition trainer code.
 component_ml_bucket = classifier_project_id + '-mlengine'

 ratelimiting_enabled = False

 # Enable cost-based rate limiting. This only applies if
 # ratelimiting_enabled = True
 ratelimiting_cost_enabled = True

 # Requests that take longer than this are hit with extra
 # counts added to their bucket at the end of the request.
 ratelimiting_cost_thresh_ms = 2000

 # Requests that hit ratelimiting_cost_thresh_sec get this
 # extra amount added to their bucket at the end of the request.
 ratelimiting_cost_penalty = 1

 api_ratelimiting_enabled = True

 # Enable cost-based api rate limiting. This only applies if
 # api_ratelimiting_enabled = True
 api_ratelimiting_cost_enabled = True

 # API requests that take longer than this are hit with extra
 # counts added to their bucket at the end of the request.
 api_ratelimiting_cost_thresh_ms = 5000

 # API requests that hit ratelimiting_cost_thresh_sec get this
 # extra amount added to their bucket at the end of the request.
 api_ratelimiting_cost_penalty = 1

 # When we post an auto-ping comment, it is posted by this user @ the preferred
 # domain name.  E.g., 'monorail@bugs.chromium.org'.
 date_action_ping_author = 'monorail'

 # Hard-coding this so that we don't rely on sys.maxint, which could
 # potentially differ. It is equal to the maximum unsigned 32 bit integer,
 # because the `int(10) unsigned` column type in MySQL is 32 bits.
 maximum_snapshot_period_end = 4294967295
	# Copyright 2016 The Chromium Authors. All rights reserved.
	# Use of this source code is govered by a BSD-style
	# license that can be found in the LICENSE file or at
	# https://developers.google.com/open-source/licenses/bsd

	"""Defines settings for monorail."""

	import os
	import re

	from google.appengine.api import app_identity

	from framework import framework_constants
	from proto import project_pb2
	from proto import site_pb2


	# This file is divided into the following parts:
	# 1. Settings you must edit before deploying your site.
	# 2. Settings you would edit on certain occasions while maintaining your site.
	# 3. Settings enable specific features.
	# 4. Settings that you can usually leave as-is.

	# TODO(jrobbins): Store these settings in the database and implement
	# servlets for domain admins to edit them without needing to redeploy the
	# app.


	####
	# Part 1: settings that you must edit before deploying your site.

	# Email address that is offered to users who might need help using the tool.
	feedback_email = 'jrobbins+monorail.feedback@chromium.org'

	# For debugging when running in staging: send all outbound
	# email to this address rather than to the actual address that
	# it would normally be sent to.
	send_all_email_to = 'jrobbins+all+%(user)s+%(domain)s@chromium.org'

	# For debugging when running the dev server locally: send all outbound
	# email to this address rather than to the actual address that
	# it would normally be sent to.
	send_dev_email_to = (send_all_email_to or
	'jrobbins+dev+%(user)s+%(domain)s@chromium.org')

	# User to send emails from Monorail as. The reply_to sections of emails will be
	# set to appspotmail addresses.
	# Note: If configuring a new monorail instance without DNS records and reserved
	# email addresses then setting these values to
	# 'reply@${app_id}.appspotmail.com' and 'noreply@{app_id}.appspotmail.com'
	# is likely the best option.
	send_email_as = 'monorail@chromium.org'
	send_noreply_email_as = 'monorail+noreply@chromium.org'

	# The default is to look for a database named "monorail" in replicas
	# named "replica-00" .. "replica-09"
	db_database_name = 'monorail'
	db_replica_prefix = 'replica-'

	# The number of logical database shards used. Each replica is complete copy
	# of the master, so any replica DB can answer queries about any logical shard.
	num_logical_shards = 10

	# "Learn more" link for the site home page
	# TODO(agable): Update this when we have publicly visible documentation.
	learn_more_link = None

	# Site name, displayed above the search box on the site home page.
	site_name = 'Monorail'

	# Who is allowed to create new projects? Set to ANYONE or ADMIN_ONLY.
	project_creation_restriction = site_pb2.UserTypeRestriction.ADMIN_ONLY

	# Default access level when creating a new project.
	default_access_level = project_pb2.ProjectAccess.ANYONE

	# Possible access levels to offer when creating a new project.
	allowed_access_levels = [
	project_pb2.ProjectAccess.ANYONE,
	project_pb2.ProjectAccess.MEMBERS_ONLY]

	# Who is allowed to create user groups? Set to ANYONE or ADMIN_ONLY.
	group_creation_restriction = site_pb2.UserTypeRestriction.ADMIN_ONLY

	# Who is allowed to create hotlists? Set to ANYONE or ADMIN_ONLY.
	hotlist_creation_restriction = site_pb2.UserTypeRestriction.ANYONE

	# Text that mentions these words as shorthand host names will be autolinked
	# regardless of the lack of "https://" or ".com".
	autolink_shorthand_hosts = [
	'go', 'g', 'shortn', 'who', 'teams',
	]
	autolink_numeric_shorthand_hosts = [
	'b', 't', 'o', 'omg', 'cl', 'cr',
	]


	####
	# Part 2: Settings you would edit on certain occasions.

	# Read-only mode prevents changes while we make server-side changes.
	read_only = False

	# Timestamp used to notify users when the read only mode or other status
	# described in the banner message takes effect. It is
	# expressed as a 5-tuple of ints: (year, month, day, hour, minute),
	# e.g. (2009, 3, 20, 21, 45) represents March 20 2009 9:45PM.
	banner_time = None

	# Display a site maintenance banner on every monorail page.
	banner_message = ''

	# User accounts with email addresses at these domains are all banned.
	banned_user_domains = []

	# We only send subscription notifications to users who have visited the
	# site in the last 6 months.
	subscription_timeout_secs = 180 * framework_constants.SECS_PER_DAY

	# Location of GCS spam classification staging trainer. Whenever the training
	# code is changed, this should be updated to point to the new package.
	trainer_staging = ('gs://monorail-staging-mlengine/spam_trainer_1517870972/'
	'packages/befc9b29d9beb7e89d509bd1e9866183c138e3a32317cc'
	'e253342ac9f8e7c375/trainer-0.1.tar.gz')

	# Location of GCS spam classification prod trainer. Whenever the training
	# code is changed, this should be updated to point to the new package.
	trainer_prod = ('gs://monorail-prod-mlengine/spam_trainer_1521755738/packages/'
	'3339dfcb5d7b6c9d714fb9b332fd72d05823e9a1850ceaf16533a6124bcad'
	'6fd/trainer-0.1.tar.gz')
	####
	# Part 3: Settings that enable specific features

	# Enables "My projects" drop down menu
	enable_my_projects_menu = True

	# Enables stars in the UI for projects
	enable_project_stars = True

	# Enables stars in the UI for users
	enable_user_stars = True

	# Enable quick edit mode in issue peek dialog and show dialog on hover
	enable_quick_edit = True


	####
	# Part 4: Settings that you can usually leave as-is.

	# dev_mode makes the server slower and more dynamic for easier debugging.
	# E.g., template files are reloaded on each request.
	dev_mode = os.environ['SERVER_SOFTWARE'].startswith('Development')
	unit_test_mode = os.environ['SERVER_SOFTWARE'].startswith('test')

	# If we assume 1KB each, then this would be 400 MB for this cache in frontends
	# that have only 1024 MB total.
	issue_cache_max_size = 400 * 1000

	# 150K users should be enough for all the frequent daily users plus the
	# occasional users that are mentioned on any popular pages.
	user_cache_max_size = 150 * 1000

	# Normally we use the default namespace, but during development it is
	# sometimes useful to run a tainted version on staging that has a separate
	# memcache namespace. E.g., os.environ.get('CURRENT_VERSION_ID')
	memcache_namespace = None # Should be None when committed.

	# Recompute derived issue fields via work items rather than while
	# the user is waiting for a page to load.
	recompute_derived_fields_in_worker = True

	# The issue search SQL queries have a LIMIT clause with this amount.
	search_limit_per_shard = 10 * 1000 # This is more than all open in chromium.

	# The GAE search feature is slow, so don't request too many results.
	fulltext_limit_per_shard = 1 * 1000

	# Retrieve at most this many issues from the DB when showing an issue grid.
	max_issues_in_grid = 6000
	# This is the most tiles that we show in grid view. If the number of results
	# is larger than this, we display IDs instead.
	max_tiles_in_grid = 1000

	# Maximum number of project results to display on a single pagination page
	max_project_search_results_per_page = 100

	# Maxium number of results per pagination page, regardless of what
	# the user specified in his/her request. This exists to prevent someone
	# from doing a DoS attack that makes our servers do a huge amount of work.
	max_artifact_search_results_per_page = 1000

	# Maximum number of comments to display on a single pagination page
	max_comments_per_page = 500

	# Max number of issue starrers to notify via email. Issues with more
	# that this many starrers will only notify the last N of them after a
	# comment from a project member.
	max_starrers_to_notify = 4000

	# In projects that have more than this many issues the next and prev
	# links on the issue detail page will not be shown when the user comes
	# directly to an issue without specifying any query terms.
	threshold_to_suppress_prev_next = 10000

	# Format string for the name of the FTS index shards for issues.
	search_index_name_format = 'issues%02d'

	# Name of the FTS index for projects (not sharded).
	project_search_index_name = 'projects'

	# Each backend has this many seconds to respond, otherwise frontend gives up
	# on that shard.
	backend_deadline = 45

	# If the initial call to a backend fails, try again this many times.
	# Initial backend calls are failfast, meaning that they fail immediately rather
	# than queue behind other requests. The last 2 retries will wait in queue.
	backend_retries = 3

	# Do various extra logging at INFO level.
	enable_profiler_logging = False

	# Mail sending domain. Normally set this to None and it will be computed
	# automatically from your AppEngine APP_ID. But, it can be overridden below.
	mail_domain = None

	# URL format to browse source code revisions. This can be overridden
	# in specific projects by setting project.revision_url_format.
	# The format string may include "{revnum}" for the revision number.
	revision_url_format = 'https://crrev.com/{revnum}'

	# Users with emails in the "priviledged" domains do NOT get any advantage
	# but they do default their preference to show unobscured email addresses.
	priviledged_user_domains = [
	'google.com', 'chromium.org', 'webrtc.org',
	]

	# Names of projects on code.google.com which we allow cross-linking to.
	recognized_codesite_projects = [
	'chromium-os',
	'chrome-os-partner',
	]

	####
	# Part 5: Instance-specific settings that override lines above.

	# We usually use a DB instance named "master" for writes.
	db_master_name = 'master'
	db_region = None # First generation DB does not specify this.

	# This ID is for -staging and other misc deployments. Prod is defined below.
	analytics_id = 'UA-55762617-20'

	if unit_test_mode:
	db_cloud_project = '' # No real database is used during unit testing.
	else:
	app_id = app_identity.get_application_id()

	if app_id == 'monorail-staging':
	site_name = 'Monorail Staging'
	banner_message = 'This staging site does not send emails.'
	# The Google Cloud SQL databases to use.
	db_cloud_project = app_id
	db_master_name = 'master-g2'
	db_region = 'us-central1'
	db_replica_prefix = 'replica-g2-'

	elif app_id == 'monorail-prod':
	send_all_email_to = None # Deliver it to the intended users.
	# The Google Cloud SQL databases to use.
	db_cloud_project = app_id
	analytics_id = 'UA-55762617-14'

	if dev_mode:
	site_name = 'Monorail Dev'
	num_logical_shards = 10

	# Combine the customized info above to make the name of the master DB instance.
	if db_region:
	db_instance = db_cloud_project + ':' + db_region + ':' + db_master_name
	else:
	db_instance = db_cloud_project + ':' + db_master_name

	# Format string for the name of the physical database replicas.
	if db_region:
	physical_db_name_format = (
	db_cloud_project + ':' + db_region + ':' + db_replica_prefix + '%02d')
	else:
	physical_db_name_format = db_cloud_project + ':' + db_replica_prefix + '%02d'

	# preferred domains to display
	preferred_domains = {
	'monorail-prod.appspot.com': 'bugs.chromium.org',
	'monorail-staging.appspot.com': 'bugs-staging.chromium.org'}

	# Borg robot service account
	borg_service_account = 'chrome-infra-prod-borg@system.gserviceaccount.com'

	# Prediction API params.
	classifier_project_id = 'project-id-testing-only'

	# Necessary for tests.
	if 'APPLICATION_ID' not in os.environ:
	os.environ['APPLICATION_ID'] = 'testing-app'

	if dev_mode:
	# There is no local stub for ML Engine.
	classifier_project_id = 'monorail-staging'
	else:
	classifier_project_id = app_identity.get_application_id()

	classifier_model_id = '20170302'

	# Number of distinct users who have to flag an issue before it
	# is automatically removed as spam.
	# 5 is an arbitrarily chosen value. Set it to something really high
	# to effectively disable spam flag threshhold checking.
	spam_flag_thresh = 5

	# If the classifier's confidence is less than this value, the
	# item will show up in the spam moderation queue for manual
	# review.
	classifier_moderation_thresh = 1.0

	# If the classifier's confidence is greater than this value,
	# and the label is 'spam', the item will automatically be created
	# with is_spam=True, and will be filtered out from search results.
	classifier_spam_thresh = 0.995

	# Users with email addresses ending with these will not be subject to
	# spam filtering.
	spam_whitelisted_suffixes = (
	'@chromium.org',
	'.gserviceaccount.com',
	'@google.com',
	'@webrtc.org',
	)

	# These email suffixes are allowed to create new alert bugs via email.
	alert_whitelisted_suffixes = (
	'@google.com',
	)

	# The person who is notified if there is an unexpected problem in the alert
	# pipeline.
	alert_escalation_email = 'zhangtiff@google.com'

	# Bugs autogenerated from alert emails are created through this account.
	alert_service_account = 'chrome-trooper-alerts@google.com'

	# The number of hash buckets to use when vectorizing text from Issues and
	# Comments. This should be the same value that the model was trained with.
	spam_feature_hashes = 500

	# The number of features to use when vectorizing text from Issues and
	# Comments. This should be the same value that the model was trained with.
	component_features = 5000

	# The name of the spam model in ML Engine.
	spam_model_name = 'spam_only_words'

	# The name of the component model in ML Engine
	component_model_name = 'component_top_words'

	# The name of the gcs bucket containing component predicition trainer code.
	component_ml_bucket = classifier_project_id + '-mlengine'

	ratelimiting_enabled = False

	# Enable cost-based rate limiting. This only applies if
	# ratelimiting_enabled = True
	ratelimiting_cost_enabled = True

	# Requests that take longer than this are hit with extra
	# counts added to their bucket at the end of the request.
	ratelimiting_cost_thresh_ms = 2000

	# Requests that hit ratelimiting_cost_thresh_sec get this
	# extra amount added to their bucket at the end of the request.
	ratelimiting_cost_penalty = 1

	api_ratelimiting_enabled = True

	# Enable cost-based api rate limiting. This only applies if
	# api_ratelimiting_enabled = True
	api_ratelimiting_cost_enabled = True

	# API requests that take longer than this are hit with extra
	# counts added to their bucket at the end of the request.
	api_ratelimiting_cost_thresh_ms = 5000

	# API requests that hit ratelimiting_cost_thresh_sec get this
	# extra amount added to their bucket at the end of the request.
	api_ratelimiting_cost_penalty = 1

	# When we post an auto-ping comment, it is posted by this user @ the preferred
	# domain name. E.g., 'monorail@bugs.chromium.org'.
	date_action_ping_author = 'monorail'

	# Hard-coding this so that we don't rely on sys.maxint, which could
	# potentially differ. It is equal to the maximum unsigned 32 bit integer,
	# because the `int(10) unsigned` column type in MySQL is 32 bits.
	maximum_snapshot_period_end = 4294967295