Remove Unicorn.

No longer used now that we use Puma in production. If you still used
Unicorn in your install, switch to `bin/rails server` instead. See
config/puma.rb for config settings.
This commit is contained in:
evazion
2021-09-20 05:07:29 -05:00
parent 68769c7c3b
commit 0fed4b557b
9 changed files with 1 additions and 234 deletions

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# Unicorn
This directory contains configuration files for Unicorn, the web server that Danbooru uses in production.
# See also
* [config/puma.rb](../puma.rb)
# External links
* https://yhbt.net/unicorn/README.html
* https://github.com/defunkt/unicorn

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# Set your full path to application.
app_path = "/var/www/danbooru2/current"
# Set unicorn options
worker_processes 2
preload_app false
timeout 180
listen "127.0.0.1:9000"
# Spawn unicorn master worker for user apps (group: apps)
user 'danbooru', 'danbooru'
# Fill path to your app
working_directory app_path
# Should be 'production' by default, otherwise use other env
rails_env = ENV['RAILS_ENV'] || 'production'
# Log everything to one file
stderr_path "log/unicorn.log"
stdout_path "log/unicorn.log"
# Set master PID location
pid "#{app_path}/tmp/pids/unicorn.pid"

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# Set your full path to application.
app_path = "/var/www/danbooru2/current"
# Set unicorn options
worker_processes 30
timeout 60
# listen "127.0.0.1:9000", :tcp_nopush => true
listen "/tmp/.unicorn.sock", backlog: 1024
# Spawn unicorn master worker for user apps (group: apps)
user 'danbooru', 'danbooru'
# Fill path to your app
working_directory app_path
# Should be 'production' by default, otherwise use other env
rails_env = ENV['RAILS_ENV'] || 'production'
# Log everything to one file
stderr_path "/dev/null"
stdout_path "/dev/null"
# Set master PID location
pid "#{app_path}/tmp/pids/unicorn.pid"
# combine Ruby 2.0.0+ with "preload_app true" for memory savings
preload_app true
# Enable this flag to have unicorn test client connections by writing the
# beginning of the HTTP headers before calling the application. This
# prevents calling the application for connections that have disconnected
# while queued. This is only guaranteed to detect clients on the same
# host unicorn runs on, and unlikely to detect disconnects even on a
# fast LAN.
check_client_connection false
# local variable to guard against running a hook multiple times
run_once = true
before_fork do |server, worker|
# the following is highly recomended for Rails + "preload_app true"
# as there's no need for the master process to hold a connection
defined?(ActiveRecord::Base) && ActiveRecord::Base.connection.disconnect!
# Occasionally, it may be necessary to run non-idempotent code in the
# master before forking. Keep in mind the above disconnect! example
# is idempotent and does not need a guard.
if run_once
# do_something_once_here ...
run_once = false # prevent from firing again
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 0.25
end
after_fork do |server, worker|
if defined?(ActiveRecord::Base)
ActiveRecord::Base.establish_connection
end
end
# This runs when we send unicorn a SIGUSR2 to do a hot restart. We need to
# clear out old BUNDLER_* and GEM_* environment variables, otherwise the new
# worker will still use the old Gemfile from the previous deployment, which
# will cause mysterious problems with libraries. BUNDLER_GEMFILE is the main
# thing we need to clear, but we wipe everything for safety.
#
# https://bogomips.org/unicorn/Sandbox.html
# https://jamielinux.com/blog/zero-downtime-unicorn-restart-when-using-rbenv/
before_exec do |server|
ENV.keep_if { |name, value| name.match?(/\A(RAILS_.*|UNICORN_.*|HOME)\z/) }
ENV["PATH"] = "#{ENV["HOME"]}/.rbenv/shims:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
end

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require "dotenv"
rails_env = ENV['RAILS_ENV'] || ENV['RACK_ENV'] || 'development'
Dotenv.load(".env.local", ".env.#{rails_env}", ".env")
addr = ENV["UNICORN_LISTEN"] || "127.0.0.1:9000"
app_path = ENV["UNICORN_ROOT"] || Dir.pwd
instance = "unicorn-#{addr}"
listen addr
worker_processes ENV["UNICORN_PROCESSES"].to_i || 1
timeout ENV["UNICORN_TIMEOUT"].to_i || 90
user = ENV["UNICORN_USER"] || "danbooru"
group = ENV["UNICORN_GROUP"] || "danbooru"
stderr_path ENV["UNICORN_LOG"] || "log/#{instance}.log"
stdout_path ENV["UNICORN_LOG"] || "log/#{instance}.log"
working_directory app_path
pid ENV["UNICORN_PIDFILE"] || "#{app_path}/tmp/pids/#{instance}.pid"
if rails_env == "production"
preload_app true
before_fork do |server, worker|
ActiveRecord::Base.connection.disconnect! if defined?(ActiveRecord::Base)
# 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|
ActiveRecord::Base.establish_connection if defined?(ActiveRecord::Base)
end
else
preload_app false
end