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# Autoload all classes that we want to instrument, and instrument the methods we
# need. This takes the Gitlab::Metrics::Instrumentation module as an argument so
# that we can stub it for testing, as it is only called when metrics are
# enabled.
#
def instrument_classes(instrumentation)
instrumentation.instrument_instance_methods(Gitlab::Shell)
instrumentation.instrument_methods(Gitlab::Git)
Gitlab::Git.constants.each do |name|
const = Gitlab::Git.const_get(name)
next unless const.is_a?(Module)
instrumentation.instrument_methods(const)
instrumentation.instrument_instance_methods(const)
end
# Path to search => prefix to strip from constant
paths_to_instrument = {
%w(app finders) => %w(app finders),
%w(app mailers emails) => %w(app mailers),
# Don't instrument `app/services/concerns`
# It contains modules that are included in the services.
# The services themselves are instrumented so the methods from the modules
# are included.
%w(app services [^concerns]**) => %w(app services),
%w(lib gitlab conflicts) => ['lib'],
%w(lib gitlab diff) => ['lib'],
%w(lib gitlab email message) => ['lib'],
%w(lib gitlab checks) => ['lib']
}
paths_to_instrument.each do |(path, prefix)|
prefix = Rails.root.join(*prefix)
Dir[Rails.root.join(*path + ['*.rb'])].each do |file_path|
path = Pathname.new(file_path).relative_path_from(prefix)
const = path.to_s.sub('.rb', '').camelize.constantize
instrumentation.instrument_methods(const)
instrumentation.instrument_instance_methods(const)
end
end
instrumentation.instrument_methods(Premailer::Adapter::Nokogiri)
instrumentation.instrument_instance_methods(Premailer::Adapter::Nokogiri)
instrumentation.instrument_methods(Banzai::Renderer)
instrumentation.instrument_methods(Banzai::Querying)
instrumentation.instrument_instance_methods(Banzai::ObjectRenderer)
instrumentation.instrument_instance_methods(Banzai::Redactor)
[Issuable, Mentionable, Participable].each do |klass|
instrumentation.instrument_instance_methods(klass)
instrumentation.instrument_instance_methods(klass::ClassMethods)
end
instrumentation.instrument_methods(Gitlab::ReferenceExtractor)
instrumentation.instrument_instance_methods(Gitlab::ReferenceExtractor)
# Instrument the classes used for checking if somebody has push access.
instrumentation.instrument_instance_methods(Gitlab::GitAccess)
instrumentation.instrument_instance_methods(Gitlab::GitAccessWiki)
instrumentation.instrument_instance_methods(API::Helpers)
instrumentation.instrument_instance_methods(RepositoryCheck::SingleRepositoryWorker)
instrumentation.instrument_instance_methods(Rouge::Formatters::HTMLGitlab)
[:XML, :HTML].each do |namespace|
namespace_mod = Nokogiri.const_get(namespace)
instrumentation.instrument_methods(namespace_mod)
instrumentation.instrument_methods(namespace_mod::Document)
end
instrumentation.instrument_methods(Rinku)
instrumentation.instrument_instance_methods(Repository)
instrumentation.instrument_methods(Gitlab::Highlight)
instrumentation.instrument_instance_methods(Gitlab::Highlight)
# This is a Rails scope so we have to instrument it manually.
instrumentation.instrument_method(Project, :visible_to_user)
# Needed for https://gitlab.com/gitlab-org/gitlab-ce/issues/30224#note_32306159
instrumentation.instrument_instance_method(MergeRequestDiff, :load_commits)
end
# With prometheus enabled by default this breaks all specs
# that stubs methods using `any_instance_of` for the models reloaded here.
#
# We should deprecate the usage of `any_instance_of` in the future
# check: https://github.com/rspec/rspec-mocks#settings-mocks-or-stubs-on-any-instance-of-a-class
#
# Related issue: https://gitlab.com/gitlab-org/gitlab-ce/issues/33587
if Gitlab::Metrics.enabled? && !Rails.env.test?
require 'pathname'
require 'influxdb'
require 'connection_pool'
require 'method_source'
# These are manually require'd so the classes are registered properly with
# ActiveSupport.
require_dependency 'gitlab/metrics/subscribers/action_view'
require_dependency 'gitlab/metrics/subscribers/active_record'
require_dependency 'gitlab/metrics/subscribers/rails_cache'
Gitlab::Application.configure do |config|
config.middleware.use(Gitlab::Metrics::RackMiddleware)
config.middleware.use(Gitlab::Middleware::RailsQueueDuration)
end
Sidekiq.configure_server do |config|
config.server_middleware do |chain|
chain.add Gitlab::Metrics::SidekiqMiddleware
end
end
# This instruments all methods residing in app/models that (appear to) use any
# of the ActiveRecord methods. This has to take place _after_ initializing as
# for some unknown reason calling eager_load! earlier breaks Devise.
Gitlab::Application.config.after_initialize do
Rails.application.eager_load!
models = Rails.root.join('app', 'models').to_s
regex = Regexp.union(
ActiveRecord::Querying.public_instance_methods(false).map(&:to_s)
)
Gitlab::Metrics::Instrumentation
.instrument_class_hierarchy(ActiveRecord::Base) do |klass, method|
# Instrumenting the ApplicationSetting class can lead to an infinite
# loop. Since the data is cached any way we don't really need to
# instrument it.
if klass == ApplicationSetting
false
else
loc = method.source_location
loc && loc[0].start_with?(models) && method.source =~ regex
end
end
# Ability is in app/models, is not an ActiveRecord model, but should still
# be instrumented.
Gitlab::Metrics::Instrumentation.instrument_methods(Ability)
end
Gitlab::Metrics::Instrumentation.configure do |config|
instrument_classes(config)
end
GC::Profiler.enable
Gitlab::Cluster::LifecycleEvents.on_worker_start do
Gitlab::Metrics::Samplers::InfluxSampler.initialize_instance.start
end
module TrackNewRedisConnections
def connect(*args)
val = super
if current_transaction = Gitlab::Metrics::Transaction.current
current_transaction.increment(:new_redis_connections, 1)
end
val
end
end
class ::Redis::Client
prepend TrackNewRedisConnections
end
end
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