以瘦为服务运行Rails应用程序

我试图在我的Web服务器上运行瘦服务。运行后“命令瘦安装”，薄创建以下文件中/etc/init.d/thin以瘦为服务运行Rails应用程序

#!/bin/sh 
DAEMON=/usr/local/lib/ruby/gems/1.9.1/bin/thin 
SCRIPT_NAME=/etc/init.d/thin 
CONFIG_PATH=/etc/thin 

# Exit if the package is not installed 
[ -x "$DAEMON" ] || exit 0 

case "$1" in 
    start) 
     $DAEMON start --all $CONFIG_PATH 
     ;; 
    stop) 
     $DAEMON stop --all $CONFIG_PATH 
     ;; 
    restart) 
     $DAEMON restart --all $CONFIG_PATH 
     ;; 
    *) 
     echo "Usage: $SCRIPT_NAME {start|stop|restart}" >&2 
     exit 3 
     ;; 
esac

当薄服务已启动，正在运行

thin start --all /etc/thin

以下这将扫描所有的YAML配置文件定义如何为每个定义的应用程序运行精简。这不起作用。

我在日志中看到：

/usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.0.0/lib/bundler/runtime.rb:27:in `block in setup': You have already activated eventmachine 0.12.6, but your Gemfile requires eventmachine 0.12.11. Consider using bundle exec. (Gem::LoadError) 
    from /usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.0.0/lib/bundler/spec_set.rb:12:in `block in each' 
    from /usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.0.0/lib/bundler/spec_set.rb:12:in `each' 
    from /usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.0.0/lib/bundler/spec_set.rb:12:in `each' 
    from /usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.0.0/lib/bundler/runtime.rb:17:in `setup' 
    from /usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.0.0/lib/bundler.rb:100:in `setup' 
    from /srv/app/current/config/boot.rb:8:in `<top (required)>' 
    from <internal:lib/rubygems/custom_require>:29:in `require' 
    from <internal:lib/rubygems/custom_require>:29:in `require' 
    from /srv/app/current/config/application.rb:1:in `<top (required)>' 
    from <internal:lib/rubygems/custom_require>:29:in `require' 
    from <internal:lib/rubygems/custom_require>:29:in `require' 
    from /srv/app/current/config/environment.rb:2:in `<top (required)>' 
    from <internal:lib/rubygems/custom_require>:29:in `require' 
    from <internal:lib/rubygems/custom_require>:29:in `require' 
    from /srv/app/current/config.ru:3:in `block in <main>' 
    from /usr/local/lib/ruby/gems/1.9.1/gems/rack-1.2.1/lib/rack/builder.rb:46:in `instance_eval' 
    from /usr/local/lib/ruby/gems/1.9.1/gems/rack-1.2.1/lib/rack/builder.rb:46:in `initialize' 
    from /srv/app/current/config.ru:1:in `new' 
    from /srv/app/current/config.ru:1:in `<main>' 
    from /usr/local/lib/ruby/gems/1.9.1/gems/thin-1.2.7/lib/rack/adapter/loader.rb:36:in `eval' 
    from /usr/local/lib/ruby/gems/1.9.1/gems/thin-1.2.7/lib/rack/adapter/loader.rb:36:in `load' 
    from /usr/local/lib/ruby/gems/1.9.1/gems/thin-1.2.7/lib/rack/adapter/loader.rb:45:in `for' 
    from /usr/local/lib/ruby/gems/1.9.1/gems/thin-1.2.7/lib/thin/controllers/controller.rb:163:in `load_adapter' 
    from /usr/local/lib/ruby/gems/1.9.1/gems/thin-1.2.7/lib/thin/controllers/controller.rb:67:in `start' 
    from /usr/local/lib/ruby/gems/1.9.1/gems/thin-1.2.7/lib/thin/runner.rb:177:in `run_command' 
    from /usr/local/lib/ruby/gems/1.9.1/gems/thin-1.2.7/lib/thin/runner.rb:143:in `run!' 
    from /usr/local/lib/ruby/gems/1.9.1/gems/thin-1.2.7/bin/thin:6:in `<top (required)>' 
    from /usr/local/lib/ruby/gems/1.9.1/bin/thin:19:in `load' 
    from /usr/local/lib/ruby/gems/1.9.1/bin/thin:19:in `<main>'

当Capistrano的部署，我缓存我的包在$ APP_PATH /共享/包目录;所以，这就解释了为什么薄抱怨不被安装为薄服务不会在$ APP_PATH /共享/束

看宝石这不工作：

cd $APP_PATH/current; bundle exec thin start -d -C /etc/thin/app_x.yml

但事实不是这样的薄/etc/init.d/thin中的服务文件起作用。我想我可以写我自己的。我只是不想解决已经解决的问题。

来源

2010-11-23 Sean McCleary

请注意，该错误不是关于未安装的宝石。问题是ActiveMachine被激活了两次，针对不同的版本，并且建议的解决方法是像你一样运行bundle exec。 – 2010-11-23 22:25:58

我想出了这个，但我不觉得它是最好的解决方案，因为它没有利用瘦的“ - all”选项，它从目录中读取配置文件。相反，我修改了启动/停止/重新启动精简服务的文件，因此对于每个应用程序，我给它一个特定的启动/停止/重新启动命令。我确信这个命令可以改进，但现在它可以满足我的需求。

#!/bin/sh 

# This is a pretty bad, but effective workaround for starting thin as a service per application. 

DAEMON=/usr/local/lib/ruby/gems/1.9.1/bin/thin 
# DAEMON=/usr/local/bin/bundler thin 
SCRIPT_NAME=/etc/init.d/thin 
CONFIG_PATH=/etc/thin 

# Exit if the package is not installed 
[ -x "$DAEMON" ] || exit 0 

case "$1" in 
    start) 
    cd /srv/hub/current && bundle exec thin start -d -C /etc/thin/hub.yml 
    ;; 
    stop) 
    cd /srv/hub/current && bundle exec thin stop -d -C /etc/thin/hub.yml 
    ;; 
    restart) 
    cd /srv/hub/current && bundle exec thin restart -d -C /etc/thin/hub.yml 
    ;; 
    *) 
    echo "Usage: $SCRIPT_NAME {start|stop|restart}" >&2 
    exit 3 
    ;; 
esac

来源

2010-11-24 17:40:24

以瘦为服务运行Rails应用程序

回答

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