57 lines
2.3 KiB
Ruby
57 lines
2.3 KiB
Ruby
# frozen_string_literal: true
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#
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# Copyright (C) 2015 - present Instructure, Inc.
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#
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# This file is part of Canvas.
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#
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# Canvas is free software: you can redistribute it and/or modify it under
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# the terms of the GNU Affero General Public License as published by the Free
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# Software Foundation, version 3 of the License.
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#
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# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Affero General Public License along
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# with this program. If not, see <http://www.gnu.org/licenses/>.
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module DynamicSettingsInitializer
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# this is expected to be invoked from application.rb
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# as an initializer so that consul-based settings are available
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# before we start bootstrapping other things in the app.
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def self.bootstrap!
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# these used to be in an initializer, but initializing this
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# library in 2 places seems like a recipe for confusion, so
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# config/initializers/consul.rb got moved in here
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reloader = lambda do
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settings = ConfigFile.load("consul").dup
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if settings.present?
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settings[:circuit_breaker] = ::DynamicSettings::CircuitBreaker.new(settings[:circuit_breaker_interval])
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begin
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::DynamicSettings.config = settings
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rescue Diplomat::KeyNotFound, Diplomat::PathNotFound, Diplomat::UnknownStatus
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Rails.logger.warn("INITIALIZATION: can't reach consul, attempts to load DynamicSettings will fail")
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end
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end
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# dumps the whole cache, even if it's a shared local redis,
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# and removes any local data loaded from yml on disk as a fallback.
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# (will reload if still present on disk)
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::DynamicSettings.on_reload!
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end
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reloader.call
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Canvas::Reloader.on_reload(&reloader)
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# dependency injection stuff from when
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# this got pulled out into a local gem
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::DynamicSettings.cache = LocalCache
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::DynamicSettings.request_cache = RequestCache
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::DynamicSettings.fallback_recovery_lambda = ->(e) { Canvas::Errors.capture_exception(:consul, e, :warn) }
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::DynamicSettings.retry_lambda = ->(e) { Canvas::Errors.capture_exception(:consul, e, :warn) }
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::DynamicSettings.logger = Rails.logger
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end
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end
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