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# This file is used by Rack-based servers to start the application.
if defined?(Unicorn)
require 'unicorn'
if ENV['RAILS_ENV'] == 'production' || ENV['RAILS_ENV'] == 'staging'
# Unicorn self-process killer
require 'unicorn/worker_killer'
min = (ENV['GITLAB_UNICORN_MEMORY_MIN'] || 400 * 1 << 20).to_i
max = (ENV['GITLAB_UNICORN_MEMORY_MAX'] || 650 * 1 << 20).to_i
# Max memory size (RSS) per worker
use Unicorn::WorkerKiller::Oom, min, max
end
end
require ::File.expand_path('../config/environment', __FILE__)
# The following is necessary to ensure stale Prometheus metrics don't accumulate over time.
# It needs to be done as early as here to ensure metrics files aren't deleted.
# After we hit our app in `warmup`, first metrics and corresponding files already being created,
# for example in `lib/gitlab/metrics/requests_rack_middleware.rb`.
def cleanup_prometheus_multiproc_dir
if dir = ::Prometheus::Client.configuration.multiprocess_files_dir
old_metrics = Dir[File.join(dir, '*.db')]
FileUtils.rm_rf(old_metrics)
end
end
def master_process?
Prometheus::PidProvider.worker_id.in? %w(unicorn_master puma_master)
end
warmup do |app|
cleanup_prometheus_multiproc_dir if master_process?
client = Rack::MockRequest.new(app)
client.get('/')
end
map ENV['RAILS_RELATIVE_URL_ROOT'] || "/" do
use Gitlab::Middleware::ReleaseEnv
run Gitlab::Application
end
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