ruby-on-rails - 为什么我在系统启动的时候启动unicorn会报错？

Question

这是我的 unicorn (/etc/init.d/unicorn) 初始化脚本:

#! /bin/sh

PATH=/home/josue/.rvm/gems/ruby-1.9.3-p0/bin:/home/josue/.rvm/gems/ruby-1.9.3-p0@global/bin:/home/josue/.rvm/rubies/ruby-1.9.3-p0/bin:/home/josue/.rvm/bin:/usr/local/sbin:$
DAEMON=/home/josue/.rvm/gems/ruby-1.9.3-p0/bin/unicorn_rails

DAEMON_OPTS="-c /home/josue/sped/current/unicorn.rb -E production -D"
NAME=unicorn_rails
DESC=unicorn_rails
PID=/home/josue/sped/shared/pids/unicorn.pid

case "$1" in
  start)
        echo -n "Starting $DESC: "
        exec $DAEMON $DAEMON_OPTS
        echo "$NAME."
        ;;
  stop)
        echo -n "Stopping $DESC: "
        kill -QUIT `cat $PID`
        echo "$NAME."
        ;;
  restart)
        echo -n "Restarting $DESC: "
        kill -QUIT `cat $PID`
        sleep 1
        $DAEMON $DAEMON_OPTS
        echo "$NAME."
        ;;
  reload)
        echo -n "Reloading $DESC configuration: "
        kill -HUP `cat $PID`
        echo "$NAME."
        ;;
  *)
        echo "Usage: $NAME {start|stop|restart|reload}" >&2
        exit 1
        ;;
  esac

exit 0

当我以普通用户身份运行 /etc/init.d/unicorn start 时，它工作正常，但是当我尝试以 root 身份运行时，结果如下:

Starting unicorn_rails: /home/josue/.rvm/rubies/ruby-1.9.3-p0/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 /home/josue/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:256:in `to_spec'
    from /home/josue/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems.rb:1210:in `gem'
    from /home/josue/.rvm/gems/ruby-1.9.3-p0/bin/unicorn_rails:18:in `<main>'

因此，当服务器启动时，unicorn 不会自动加载。

我正在使用:

• Ubuntu 10.04
• rvm
• ruby 1.9.3-p0

Answer 1

有几种方法可以让它工作:

1. 按照您的代码:

   PATH=/home/josue/.rvm/gems/ruby-1.9.3-p0/bin:/home/josue/.rvm/gems/ruby-1.9.3-p0@global/bin:/home/josue/.rvm/rubies/ruby-1.9.3-p0/bin:/home/josue/.rvm/bin:$PATH
   GEM_HOME=/home/josue/.rvm/gems/ruby-1.9.3-p0
   GEM_PATH=/home/josue/.rvm/gems/ruby-1.9.3-p0:/home/josue/.rvm/gems/ruby-1.9.3-p0@global
   

2. 使用 rvm 包装器:https://rvm.io/integration/init-d/

3. 或其他人:https://rvm.io/integration/cron/