Two years ago I was running the following command:
bundle exec puma -C config/puma.rb -b unix:/home/user/site/shared/tmp/sockets/user-puma.sock -d
bundle exec sidekiq -d
But now, after some Ubuntu updates, the -d flag is deprecated and I can't start the Puma and Sidekiq processes to run in background.
I also tried running:
bundle exec puma -C config/puma.rb -b unix:/home/user/site/shared/tmp/sockets/user-puma.sock &
bundle exec sidekiq &
This works only while I'm logged on the SSH, when I close the SSH connection, all processes opened with & are closed.
How can I run Puma, Sidekiq and other processes in background as Daemons?
What works for me is setting up my own systemd service for sidekiq
A well-documented example file is in the sidekiq github repository
Along with this, I'd also recommend using monit to watch background processes... here's a recipe from Lugo Labs that I loosely base my deploys off of
Related
I'm using Rails 4 + Nginx + Unicorn and I want that when my raspberry pi is rebooted it should run Rails application on startup.
Issue: The Nginx is running but unicorn is not running.
I've put in /etc/rc.local file the following command
cd /opt/www/RAILSAPP/current && bundle exec unicorn -E production -c config/unicorn.rb -D
but its not up when I'm rebooting. when I'm accessing the pi via ssh and run the command its working.
How can I start unicorn on startup in order to serve the rails app?
We are currently using capistrano-sidekiq, this also handles the automatic restart of sidekiq on each deploy.
However, we also want to manually restart sidekiq each night, without rebooting the whole application.
Which command should be used to automatically restart sidekiq on the production machine using a crontab entry on this machine ?
Find existing sidekiq process and kill it and then start sidekiq again
To run Sidekiq
RAILS_ENV=production bundle exec sidekiq -d -L log/sidekiq.log -C config/sidekiq.yml
To Kill sidekiq process
RAILS_ENV=production bundle exec sidekiqctl stop tmp/pids/sidekiq.pid
In Ubuntu, I can run a rails server in the background as a daemon by passing in the --daemon option;
bundle exec puma -e production -b unix:///var/run/my_app.sock --daemon
However, how do I gracefully shut this daemonized process down? It's not a simple matter of crtl + c anymore :)
It is better to use puma control pumactl, it processes monitor and controller.
and then you can use it like this to stop
bundle exec pumactl -P /var/run/puma.pid stop
OR
pumactl -C unix://var/run/my_app_pumactl.sock [status|restart|halt|stop]
I have multiple workers, each of them seperated based on WorkerClass
Specified queues, concurrency etc. They are triggerin via cron jobs.
nohup bundle exec sidekiq -q worker1 -c 5 -e production
nohup bundle exec sidekiq -q worker2 -c 5 -e production
nohup bundle exec sidekiq -q worker3 -c 5 -e production
nohup bundle exec sidekiq -q worker4 -c 5 -e production
nohup bundle exec sidekiq -q worker5 -c 5 -e production
So, I need to start all of them on EC2 instance, and restart them after next deploy.
Can I use capistrano to do this? or any better way?
Thanks.
You should use something like God, upstart, or runit to keep your sidekiq processes up and running.
I am running my rails application using ruby enterprise edition with unicorn as app server. I run this command
bundle exec unicorn -D -c /home/ubuntu/apps/st/config/unicorn.rb
I need to run this command soon after the system reboots or starts. I am running the app on ubuntu 10.04 LTS EC2 instance. I tried couple of examples which are mentioned on this site as well as this site but it’s not working for me. Any heads up
Try it as an Upstart. To do so, you need to create a myapp.conf file into the directory /etc/init/ with the contents below:
description "myapp server"
start on runlevel [23]
stop on shutdown
exec sudo -u myuser sh -c "cd /path/to/my/app && bundle exec unicorn -D -c /home/ubuntu/apps/st/config/unicorn.rb"
respawn
After that, you should be able to start/stop/restart your app with the commands below:
start myapp
stop myapp
restart myapp
Use ps -aux | grep myapp to check if your app is running.
You can use this file as a template, set appropriate paths mentioned in this file, make it executable and symlink into /etc/init.d/my_unicorn_server. Now you can start the server using:
sudo service my_unicorn_server start
Then you can do:
sudo update-rc.d my_unicorn_server defaults
To startup the unicorn server on system reboot automatically.
In my case, I just wanted it quick so I place the startup command in /etc/rc.local like below. Note that i'm using RVM.
# By default this script does nothing.
cd <your project dir>
/usr/local/rvm/gems/ruby-2.2.1/wrappers/bundle exec unicorn -c <your project dir>/config/unicorn.conf -D
test -e /etc/ssh/ssh_host_dsa_key || dpkg-reconfigure openssh-server
exit 0
Make sure your startup command is above the exit 0. After you reboot, check whether it is running or not by directly hitting the url of your application or use ps -aux | grep unicorn command.
Note* Previously I use Phusion Passenger but I'm having trouble to see its error log, so I move back to unicorn. I also tried #warantesbr without success, which I guess it fails because my whole environment where setup using root access.
If you are using unicorn_init script
You can configure a cron job to start the unicorn server on reboot
crontab -e
and add
#reboot /bin/bash -l -c 'service unicorn_<your service name> start >> /<path to log file>/cron.log 2>&1'