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# frozen_string_literal: true
# -------------------------------------------------------------------------
# This file is used by the GDK to generate a default config/unicorn.rb file
# Note that `/home/git` will be substituted for the actual GDK root
# directory when this file is generated
# -------------------------------------------------------------------------
worker_processes 2
timeout 60
listen '/home/git/gitlab.socket'
preload_app true
check_client_connection false
require_relative "/home/git/gitlab/lib/gitlab/cluster/lifecycle_events"
before_exec do |server|
# Signal application hooks that we're about to restart
Gitlab::Cluster::LifecycleEvents.do_master_restart
end
run_once = true
before_fork do |server, worker|
if run_once
# There is a difference between Puma and Unicorn:
# - Puma calls before_fork once when booting up master process
# - Unicorn runs before_fork whenever new work is spawned
# To unify this behavior we call before_fork only once (we use
# this callback for deleting Prometheus files so for our purposes
# it makes sense to align behavior with Puma)
run_once = false
# Signal application hooks that we're about to fork
Gitlab::Cluster::LifecycleEvents.do_before_fork
end
# The following is only recommended for memory/DB-constrained
# installations. It is not needed if your system can house
# twice as many worker_processes as you have configured.
#
# This allows a new master process to incrementally
# phase out the old master process with SIGTTOU to avoid a
# thundering herd (especially in the "preload_app false" case)
# when doing a transparent upgrade. The last worker spawned
# will then kill off the old master process with a SIGQUIT.
old_pid = "#{server.config[:pid]}.oldbin"
if old_pid != server.pid
begin
sig = (worker.nr + 1) >= server.worker_processes ? :QUIT : :TTOU
Process.kill(sig, File.read(old_pid).to_i)
rescue Errno::ENOENT, Errno::ESRCH
end
end
#
# Throttle the master from forking too quickly by sleeping. Due
# to the implementation of standard Unix signal handlers, this
# helps (but does not completely) prevent identical, repeated signals
# from being lost when the receiving process is busy.
# sleep 1
end
after_fork do |server, worker|
# Signal application hooks of worker start
Gitlab::Cluster::LifecycleEvents.do_worker_start
# per-process listener ports for debugging/admin/migrations
# addr = "127.0.0.1:#{9293 + worker.nr}"
# server.listen(addr, :tries => -1, :delay => 5, :tcp_nopush => true)
end
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