Question
How do I run a bash command when Unicorn starts up on rails?
- Posted on July 20, 2015
- Ruby on RailsDigitalOceanUbuntu
Asked by piedoom
I’m currently working on an instance with a Rails server with Unicorn on Ubuntu. I’ve gotten everything running, except for one thing.
There is a gem I’m using called delayed jobs, and it needs to start as a daemon to function correctly whenever the server restarts. The problem is that it seems like the gem has very many different ways of starting, many of which aren’t supported with my current version. So, I thought instead of searching through piles of inapplicable docs, I could just start it up with a shell command that I know works.
I’m not using anything like Capistrano - so what would the best way of running a command-line script when Unicorn starts be? I have to run
cd /home/rails/
RAILS_ENV=production bin/delayed_job start
Thanks.
This textbox defaults to using Markdown to format your answer.
You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!
These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.
Get our biweekly newsletter
Sign up for Infrastructure as a Newsletter.
Hollie's Hub for Good
Working on improving health and education, reducing inequality, and spurring economic growth? We'd like to help.
Become a contributor
Get paid to write technical tutorials and select a tech-focused charity to receive a matching donation.
Depending on how you are using and starting Unicorn, the most straightforward way to do this would probably be to use a Procfile along with a tool like Foreman. This allows you to define separate tasks to start. E.g.:
Then, running
foreman startwill launch both processes.Foreman can also be used to generate a set of systemd units or Upstart confs based on the Procfile.