Error deploying Rails app to Opsworks using unicorn

Question

The application gets successfully deployed but it does not work!

The error file at /var/log/nginx/error.log shows the following error:

2014/07/27 13:01:33 [crit] 13633#0: *531 connect() to unix:/srv/www/webcam_app/shared/sockets/unicorn.sock failed (2: No such file or directory) while connecting to upstream, client: 172.31.21.187, server: webcam_app, request: "GET / HTTP/1.1", upstream: "http://unix:/srv/www/webcam_app/shared/sockets/unicorn.sock:/", host: "172.31.0.13"

I checked and found that unicorn.conf does not exist in /srv/www/webcam_app/shared/sockets.

I am unable to figure out why this is happening. Do I need to add any gem for unicorn ar is it some kind of problem with the cookbook?

Answer 1

Adding

# Use unicorn as the web server
gem 'unicorn'

to Gemfile solved the problem.