I'm trying to get a bare bones Rails app deployed under Apache, Passenger 3.0.0 and Rails 3.0.3. I'm getting all kinds of weird errors. mostly revolving around what I think is related to bundler or RAILS_ENV.
Only non-default thing about the app is that development & test environments use SQLite3 and production uses MySQL.
When hitting app from web browser Passenger is throwing errors regarding gems (sqlite3) that are specifically (in the Gemfile AND in the database.yml) declared as NOT part of the production environment.
How can I tell what user the server is trying to run my Rails app as? I would like to make sure the RAILS_ENV is set correctly for that user as I think Passenger is trying to run this app in development mode for some reason.
Edit: added results of ps aux | grep httpd
myserver:current elvis$ ps aux | grep httpd
elvis 4424 0.4 0.0 66152 192 s000 S+ 11:03AM 0:00.00 grep httpd
_www 1950 0.0 0.2 93024 2544 ?? S 11:40PM 0:01.23 /usr/sbin/httpd -D FOREGROUND
root 1918 0.0 1.0 93024 10244 ?? Ss 11:39PM 0:02.75 /usr/sbin/httpd -D FOREGROUND
_www 4084 0.0 0.2 93024 2536 ?? S 9:41AM 0:00.15 /usr/sbin/httpd -D FOREGROUND
and ls -l ...
myserver:current elvis$ ls -l config
total 48
-rw-rw-r-- 1 aaron admin 1923 Nov 19 21:40 application.rb
-rw-rw-r-- 1 aaron admin 326 Nov 19 21:40 boot.rb
-rw-rw-r-- 1 aaron admin 741 Nov 19 21:40 database.yml
-rw-rw-r-- 1 aaron admin 1257 Nov 19 21:40 deploy.rb
-rw-rw-r-- 1 aaron admin 149 Nov 19 21:40 environment.rb
drwxrwxr-x 5 aaron admin 170 Nov 19 21:40 environments
drwxrwxr-x 7 aaron admin 238 Nov 19 21:40 initializers
drwxrwxr-x 3 aaron admin 102 Nov 19 21:40 locales
-rw-rw-r-- 1 aaron admin 1808 Nov 19 21:40 routes.rb
By default, passenger will run your app as the user who owns the config/environment.rb or config.ru file, see http://www.modrails.com/documentation/Users%20guide%20Apache.html#user_switching
Passenger will run in the production environment by default unless you tell it otherwise with the RailsEnv, see http://www.modrails.com/documentation/Users%20guide%20Apache.html#rails_env
You could run ps aux | grep httpd to see what user is running your apache process.
That's what I use to detect what user should run the rails app
RAILS_USER=$(stat -c '%U' /YOUR_PATH/environment.rb)
echo "Detected rails user: $RAILS_USER"
来源：https://stackoverflow.com/questions/4231711/what-user-is-running-my-rails-app