Odd redirection in Ruby on Rails

Question

I am getting odd redirection in general. It works in development but not production. Here are the responses for an update. The same things happens on a create.

DEVELOPMENT

Redirected to http://localhost:3000/trackers
Completed 302 Found in 43ms (ActiveRecord: 18.7ms)
Started GET "/trackers" for 127.0.0.1 at 2014-01-06 06:41:02 -0600

PRODUCTION

Redirected to http://example.com/trackers
Completed 302 Found in 218ms (ActiveRecord: 63.9ms)
Started GET "/" for [IP} at 2014-01-05 20:15:33 +0000

routes.rb (pertinant)

              trackers GET    /trackers(.:format)                       trackers#index
                       POST   /trackers(.:format)                       trackers#create
           new_tracker GET    /trackers/new(.:format)                   trackers#new
          edit_tracker GET    /trackers/:id/edit(.:format)              trackers#edit
               tracker GET    /trackers/:id(.:format)                   trackers#show
                       PUT    /trackers/:id(.:format)                   trackers#update
                       DELETE /trackers/:id(.:format)                  trackers#destroy

Here is my tracker controller

class TrackersController < ApplicationController
 before_filter :authenticate_user!
load_and_authorize_resource

def create
  @tracker = params[:tracker]
  @user = current_user
  if @user.trackers.create(@tracker)
   redirect_to trackers_path, :notice => "New Tracker Created!"
  else
   redirect_to trackers_path, :notice => "Tracker Could not be created."
  end
end

def update
  @tracker = Tracker.find(params[:id])
  if @tracker.update_attributes(params[:tracker])
   redirect_to trackers_path, :notice => "Tracker Updated!"
  else
   redirect_to trackers_path(params[:id]), :notice => "Unable to Update Tracker"
  end
end

end

NGINX

upstream unicorn{
server unix:/tmp/unicorn.legalleads.sock fail_timeout=0;}


server {
listen      80;
server_name example.com;
return 301 https://$host;}


server {

listen 443 default;
server_name example.com;
root /home/a/apps/legalleads/public;
try_files $uri/index.html $uri @unicorn;

ssl on;
ssl_certificate /etc/nginx/ssl/com.crt;
ssl_certificate_key /etc/nginx/ssl/server.key;


location ^~ /assets/ {
  gzip_static on;
  expires max;
  add_header Cache-Control public;
}

location @unicorn {
 proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
 proxy_set_header Host $http_host;
 proxy_redirect off;
 proxy_pass http://unicorn;
}

error_page 500 502 503 504 /500.html;
client_max_body_size 4G;
keepalive_timeout 10;
}

Answer 1

Faraz, thank you so much for the hint on this. Here is the solution and the blog that helped me find the answer

http://blog.seancarpenter.net/2013/09/02/rails-ssl-route-generation-with-nginx-and-unicorn/

I had to tell nginx to keep the https. This is why some of the time it would work and sometimes it would not.

location @unicorn {
  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  proxy_set_header Host $http_host;
  proxy_redirect off;
  proxy_pass http://unicorn;
}

Had to be changed to

location @unicorn {
  proxy_set_header    X-Forwarded-For $proxy_add_x_forwarded_for;
  proxy_set_header    X-Forwarded-Proto https; # New header for SSL
  proxy_set_header    Host $http_host;
  proxy_redirect      off;
  proxy_pass          http://unicorn_something_server;
}