Skip to content

Instantly share code, notes, and snippets.

@KazW

KazW/discourse.god

Last active Dec 16, 2015
Embed
What would you like to do?
Discourse God file, needs work.
rails_env = 'production'
rails_root = File.dirname(File.dirname(__FILE__)) # Place this file in the config directory
secret_token = 'CHANGE_THIS'
user = 'deployer'
group = 'users'
num_webs = 4
environment = {'RAILS_ENV' => rails_env, 'SECRET_TOKEN' => secret_token, 'RUBY_GC_MALLOC_LIMIT' => 90000000}
config_hash = {:rails_root => rails_root, :user => user, :group => group, :environment => environment}
def generic_monitoring(w, options = {})
w.start_if do |start|
start.condition(:process_running) do |c|
c.interval = 30.seconds
c.running = false
end
end
w.restart_if do |restart|
restart.condition(:memory_usage) do |c|
c.above = options[:memory_limit]
c.times = [3, 5] # 3 out of 5 intervals
end
restart.condition(:cpu_usage) do |c|
c.above = options[:cpu_limit]
c.times = 5
end
end
w.lifecycle do |on|
on.condition(:flapping) do |c|
c.to_state = [:start, :restart]
c.times = 5
c.within = 5.minute
c.transition = :unmonitored
c.retry_in = 10.minutes
c.retry_times = 5
c.retry_within = 2.hours
end
end
end
def generic_settings(w, options = {})
w.dir = options[:rails_root]
w.env = options[:environment]
w.uid = options[:user]
w.gid = options[:group]
w.behavior(:clean_pid_file)
w.interval = 20.seconds
w.start_grace = 30.seconds
w.stop_grace = 30.seconds
w.restart_grace = 30.seconds
end
# Thin servers
num_webs.times do |num|
God.watch do |w|
yaml_file = "#{rails_root}/config/thin.yml"
w.name = "thin-#{num}"
w.group = 'web'
w.start = "bundle exec thin start -C #{yaml_file} -o #{num}"
w.stop = "bundle exec thin stop -C #{yaml_file} -o #{num}"
w.restart = "bundle exec thin restart -C #{yaml_file} -o #{num}"
w.pid_file = "#{rails_root}/tmp/pids/thin.#{num}.pid"
w.log = "#{rails_root}/log/thin.#{num}.log"
generic_settings(w, config_hash)
generic_monitoring(w, :cpu_limit => 30.percent, :memory_limit => 275.megabytes)
end
end
# Sidekiq
God.watch do |w|
pid_file = "#{rails_root}/tmp/pids/sidekiq.pid"
w.name = 'sidekiq'
w.start = "bundle exec sidekiq -P #{rails_root}/tmp/pids/sidekiq.pid"
w.stop = "kill -QUIT `cat #{pid_file}`"
w.pid_file = "#{rails_root}/tmp/pids/sidekiq.pid"
w.log = "#{rails_root}/log/sidekiq.log"
generic_settings(w, config_hash)
generic_monitoring(w, :cpu_limit => 30.percent, :memory_limit => 250.megabytes)
end
# Clockwork
God.watch do |w|
pid_file = "#{rails_root}/tmp/pids/clockwork.pid"
w.name = 'clockwork'
w.start = "bundle exec clockwork #{rails_root}/config/clock.rb"
w.stop = "kill -QUIT `cat #{pid_file}`"
w.pid_file = "#{rails_root}/tmp/pids/clockwork.pid"
w.log = "#{rails_root}/log/clockwork.log"
generic_settings(w, config_hash)
generic_monitoring(w, :cpu_limit => 30.percent, :memory_limit => 200.megabytes)
end
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment