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ruby-on-railsubuntunginxrvmunicorn

Ubuntu: 'unicorn_init.sh start' works, but 'service unicorn_init start' does NOT

I have installed nginx with unicorn on an Ubuntu 12.04 server. Everything works, site, db, unicorn...good. So I'm trying to make sure that after a reboot, nginx and unicorn start up. I have set update-rc.d for my unicorn process, but it doesn't start/work after a reboot. I suspect it has something to do with ubuntu's use of "service" as opposed to "/etc/init.d/unicorn_init "

In other words:

If I execute:

$ /etc/init.d/unicorn_init start

unicorn starts up just fine, no errors.

If I execute:

$ service unicorn_init start

it fails and unicorn does not start.

I've think it has something to do with paths. Ive added environment PATHS to PATH, GEM_PATH, & GEM_HOME, but I still receive the same results

1, If I run /usr/local/rvm/gems/ruby-1.9.3-p194/bin/unicorn, I get errors:

usr/local/rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:247:in `to_specs': Could not find unicorn (>= 0) amongst[bigdecimal-1.1.0, io-console-0.3, json-1.5.4, minitest-2.5.1, rake-0.9.2.2, rdoc-3.9.4] (Gem::LoadError)
    from /usr/local/rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:256:in `to_spec'
    from /usr/local/rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems.rb:1231:in `gem'
    from /usr/local/rvm/gems/ruby-1.9.3-p194/bin/unicorn:18:in `<main>'

2, If I run /var/rails/web-app/bin/unicorn, I get errors:

/usr/local/rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- bundler/setup (LoadError)
    from /usr/local/rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
    from /var/rails/web-app/bin/unicorn:14:in `<main>'

Any help would be greatly appreciated! Thanks

Solution

  • you should use an unicorn wrapper script that will include all the required environment variables:

    rvm wrapper 1.9.3 ruby-1.9.3 unicorn

    It will generate ruby-1.9.3_unicorn use this instead of just unicorn in the init script.

    You can find more details on wrappers with:

    rvm wrapper

    In case when work is done via bundler (like capitrano) then generate a wrapper for bundle:

    rvm wrapper 1.9.3 ruby-1.9.3 bundle

    and use the full path to the wrapper as displayed by this command:

    which ruby-1.9.3_bundle